Migrate percent to unit module

app/src/main/java/org/breezyweather/background/provider/WeatherContentProvider.kt

@@ -107,6 +107,7 @@ import org.breezyweather.unit.precipitation.Precipitation
 import org.breezyweather.unit.precipitation.PrecipitationUnit
 import org.breezyweather.unit.pressure.Pressure
 import org.breezyweather.unit.pressure.PressureUnit
+import org.breezyweather.unit.ratio.Ratio
 import org.breezyweather.unit.speed.Speed
 import org.breezyweather.unit.speed.SpeedUnit
 import org.breezyweather.unit.temperature.Temperature
@@ -480,10 +481,7 @@ class WeatherContentProvider : ContentProvider() {
                 relativeHumidity = getPercentUnit(cur.relativeHumidity),
                 dewPoint = getTemperatureUnit(cur.dewPoint, temperatureUnit),
                 pressure = getPressureUnit(cur.pressure, pressureUnit),
-                cloudCover = getPercentUnit(
-                    cur.cloudCover?.toDouble(),
-                    getCloudCoverDescription(context!!, cur.cloudCover)
-                ),
+                cloudCover = getPercentUnit(cur.cloudCover, cur.cloudCover?.getCloudCoverDescription(context!!)),
                 visibility = getDistanceUnit(cur.visibility, distanceUnit),
                 ceiling = getDistanceUnit(cur.ceiling, distanceUnit)
             )
@@ -562,16 +560,16 @@ class WeatherContentProvider : ContentProvider() {
                 ),
                 cloudCover = BreezyDailyUnit(
                     avg = getPercentUnit(
-                        day.cloudCover?.average?.toDouble(),
-                        getCloudCoverDescription(context!!, day.cloudCover?.average)
+                        day.cloudCover?.average,
+                        day.cloudCover?.average?.getCloudCoverDescription(context!!)
                     ),
                     max = getPercentUnit(
-                        day.cloudCover?.max?.toDouble(),
-                        getCloudCoverDescription(context!!, day.cloudCover?.max)
+                        day.cloudCover?.max,
+                        day.cloudCover?.max?.getCloudCoverDescription(context!!)
                     ),
                     min = getPercentUnit(
-                        day.cloudCover?.min?.toDouble(),
-                        getCloudCoverDescription(context!!, day.cloudCover?.min)
+                        day.cloudCover?.min,
+                        day.cloudCover?.min?.getCloudCoverDescription(context!!)
                     ),
                     summary = null
                 ),
@@ -609,10 +607,7 @@ class WeatherContentProvider : ContentProvider() {
                 relativeHumidity = getPercentUnit(hour.relativeHumidity),
                 dewPoint = getTemperatureUnit(hour.dewPoint, temperatureUnit),
                 pressure = getPressureUnit(hour.pressure, pressureUnit),
-                cloudCover = getPercentUnit(
-                    hour.cloudCover?.toDouble(),
-                    getCloudCoverDescription(context!!, hour.cloudCover)
-                ),
+                cloudCover = getPercentUnit(hour.cloudCover, hour.cloudCover?.getCloudCoverDescription(context!!)),
                 visibility = getDistanceUnit(hour.visibility, distanceUnit)
             )
         }
@@ -870,12 +865,12 @@ class WeatherContentProvider : ContentProvider() {
     }
 
     private fun getPercentUnit(
-        percent: Double?,
+        percent: Ratio?,
         description: String? = null,
     ): BreezyUnit? {
         return percent?.let {
             BreezyUnit(
-                value = it.roundDecimals(1),
+                value = it.inPercent.roundDecimals(1),
                 unit = "percent",
                 description = description
             )

app/src/main/java/org/breezyweather/common/di/DbModule.kt

@@ -38,6 +38,7 @@ import breezyweather.data.PollenConcentrationColumnAdapter
 import breezyweather.data.PollutantConcentrationColumnAdapter
 import breezyweather.data.PrecipitationColumnAdapter
 import breezyweather.data.PressureColumnAdapter
+import breezyweather.data.RatioColumnAdapter
 import breezyweather.data.SpeedColumnAdapter
 import breezyweather.data.TemperatureColumnAdapter
 import breezyweather.data.TimeZoneColumnAdapter
@@ -110,9 +111,11 @@ class DbModule {
                 no2Adapter = PollutantConcentrationColumnAdapter,
                 o3Adapter = PollutantConcentrationColumnAdapter,
                 coAdapter = PollutantConcentrationColumnAdapter,
+                relative_humidityAdapter = RatioColumnAdapter,
                 dew_pointAdapter = TemperatureColumnAdapter,
                 pressureAdapter = PressureColumnAdapter,
                 visibilityAdapter = DistanceColumnAdapter,
+                cloud_coverAdapter = RatioColumnAdapter,
                 ceilingAdapter = DistanceColumnAdapter
             ),
             dailysAdapter = Dailys.Adapter(
@@ -127,6 +130,11 @@ class DbModule {
                 daytime_rain_precipitationAdapter = PrecipitationColumnAdapter,
                 daytime_snow_precipitationAdapter = PrecipitationColumnAdapter,
                 daytime_ice_precipitationAdapter = PrecipitationColumnAdapter,
+                daytime_total_precipitation_probabilityAdapter = RatioColumnAdapter,
+                daytime_thunderstorm_precipitation_probabilityAdapter = RatioColumnAdapter,
+                daytime_rain_precipitation_probabilityAdapter = RatioColumnAdapter,
+                daytime_snow_precipitation_probabilityAdapter = RatioColumnAdapter,
+                daytime_ice_precipitation_probabilityAdapter = RatioColumnAdapter,
                 daytime_total_precipitation_durationAdapter = DurationColumnAdapter,
                 daytime_thunderstorm_precipitation_durationAdapter = DurationColumnAdapter,
                 daytime_rain_precipitation_durationAdapter = DurationColumnAdapter,
@@ -145,6 +153,11 @@ class DbModule {
                 nighttime_rain_precipitationAdapter = PrecipitationColumnAdapter,
                 nighttime_snow_precipitationAdapter = PrecipitationColumnAdapter,
                 nighttime_ice_precipitationAdapter = PrecipitationColumnAdapter,
+                nighttime_total_precipitation_probabilityAdapter = RatioColumnAdapter,
+                nighttime_thunderstorm_precipitation_probabilityAdapter = RatioColumnAdapter,
+                nighttime_rain_precipitation_probabilityAdapter = RatioColumnAdapter,
+                nighttime_snow_precipitation_probabilityAdapter = RatioColumnAdapter,
+                nighttime_ice_precipitation_probabilityAdapter = RatioColumnAdapter,
                 nighttime_total_precipitation_durationAdapter = DurationColumnAdapter,
                 nighttime_thunderstorm_precipitation_durationAdapter = DurationColumnAdapter,
                 nighttime_rain_precipitation_durationAdapter = DurationColumnAdapter,
@@ -182,12 +195,18 @@ class DbModule {
                 urticaceaeAdapter = PollenConcentrationColumnAdapter,
                 willowAdapter = PollenConcentrationColumnAdapter,
                 sunshine_durationAdapter = DurationColumnAdapter,
+                relative_humidity_averageAdapter = RatioColumnAdapter,
+                relative_humidity_minAdapter = RatioColumnAdapter,
+                relative_humidity_maxAdapter = RatioColumnAdapter,
                 dewpoint_averageAdapter = TemperatureColumnAdapter,
                 dewpoint_minAdapter = TemperatureColumnAdapter,
                 dewpoint_maxAdapter = TemperatureColumnAdapter,
                 pressure_averageAdapter = PressureColumnAdapter,
                 pressure_maxAdapter = PressureColumnAdapter,
                 pressure_minAdapter = PressureColumnAdapter,
+                cloud_cover_averageAdapter = RatioColumnAdapter,
+                cloud_cover_minAdapter = RatioColumnAdapter,
+                cloud_cover_maxAdapter = RatioColumnAdapter,
                 visibility_averageAdapter = DistanceColumnAdapter,
                 visibility_maxAdapter = DistanceColumnAdapter,
                 visibility_minAdapter = DistanceColumnAdapter
@@ -204,6 +223,11 @@ class DbModule {
                 rain_precipitationAdapter = PrecipitationColumnAdapter,
                 snow_precipitationAdapter = PrecipitationColumnAdapter,
                 ice_precipitationAdapter = PrecipitationColumnAdapter,
+                total_precipitation_probabilityAdapter = RatioColumnAdapter,
+                thunderstorm_precipitation_probabilityAdapter = RatioColumnAdapter,
+                rain_precipitation_probabilityAdapter = RatioColumnAdapter,
+                snow_precipitation_probabilityAdapter = RatioColumnAdapter,
+                ice_precipitation_probabilityAdapter = RatioColumnAdapter,
                 wind_speedAdapter = SpeedColumnAdapter,
                 wind_gustsAdapter = SpeedColumnAdapter,
                 pm25Adapter = PollutantConcentrationColumnAdapter,
@@ -212,8 +236,10 @@ class DbModule {
                 no2Adapter = PollutantConcentrationColumnAdapter,
                 o3Adapter = PollutantConcentrationColumnAdapter,
                 coAdapter = PollutantConcentrationColumnAdapter,
+                relative_humidityAdapter = RatioColumnAdapter,
                 dew_pointAdapter = TemperatureColumnAdapter,
                 pressureAdapter = PressureColumnAdapter,
+                cloud_coverAdapter = RatioColumnAdapter,
                 visibilityAdapter = DistanceColumnAdapter
             ),
             minutelysAdapter = Minutelys.Adapter(

app/src/main/java/org/breezyweather/common/extensions/DisplayExtensions.kt

@@ -36,9 +36,11 @@ import android.view.animation.DecelerateInterpolator
 import android.view.animation.Interpolator
 import android.view.animation.OvershootInterpolator
 import androidx.annotation.AttrRes
+import androidx.annotation.ColorRes
 import androidx.annotation.Px
 import androidx.annotation.Size
 import androidx.annotation.StyleRes
+import androidx.core.content.res.ResourcesCompat
 import androidx.core.graphics.createBitmap
 import androidx.core.view.WindowInsetsControllerCompat
 import com.google.android.material.resources.TextAppearance
@@ -205,6 +207,10 @@ fun Context.getThemeColor(
     return typedValue.data
 }
 
+fun Context.getColorResource(@ColorRes id: Int): androidx.compose.ui.graphics.Color {
+    return androidx.compose.ui.graphics.Color(ResourcesCompat.getColor(resources, id, theme))
+}
+
 @Suppress("DEPRECATION")
 fun Window.setSystemBarStyle(
     lightStatus: Boolean,

app/src/main/java/org/breezyweather/common/extensions/UnitExtensions.kt

@@ -19,6 +19,7 @@ package org.breezyweather.common.extensions
 import android.content.Context
 import android.graphics.Color
 import androidx.annotation.ColorInt
+import androidx.core.content.ContextCompat
 import org.breezyweather.R
 import org.breezyweather.domain.settings.SettingsManager
 import org.breezyweather.unit.distance.Distance
@@ -30,9 +31,10 @@ import org.breezyweather.unit.pollutant.PollutantConcentrationUnit
 import org.breezyweather.unit.precipitation.Precipitation
 import org.breezyweather.unit.precipitation.PrecipitationUnit
 import org.breezyweather.unit.pressure.Pressure
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.RatioUnit
 import org.breezyweather.unit.speed.Speed
 import org.breezyweather.unit.temperature.Temperature
-import kotlin.math.roundToInt
 import kotlin.time.Duration
 import kotlin.time.DurationUnit
 
@@ -357,6 +359,41 @@ fun Duration.formatTime(
     )
 }
 
+/**
+ * Convenient format function with parameters filled for our app
+ */
+fun Ratio.formatPercent(
+    context: Context,
+    valueWidth: UnitWidth = UnitWidth.SHORT,
+): String {
+    val settings = SettingsManager.getInstance(context)
+    return format(
+        context = context,
+        unit = RatioUnit.PERCENT,
+        valueWidth = valueWidth,
+        locale = context.currentLocale,
+        useNumberFormatter = settings.useNumberFormatter,
+        useMeasureFormat = settings.useMeasureFormat
+    )
+}
+
+/**
+ * Convenient format function with parameters filled for our app
+ */
+fun Ratio.formatValue(
+    context: Context,
+    width: UnitWidth = UnitWidth.SHORT,
+): String {
+    val settings = SettingsManager.getInstance(context)
+    return formatValue(
+        unit = RatioUnit.PERCENT,
+        width = width,
+        locale = context.currentLocale,
+        useNumberFormatter = settings.useNumberFormatter,
+        useMeasureFormat = settings.useMeasureFormat
+    )
+}
+
 // We don't need any cloud cover unit, it's just a percent, but we need some helpers
 
 /**
@@ -368,35 +405,25 @@ const val CLOUD_COVER_SCT = 67.5 // 5 okta
 const val CLOUD_COVER_BKN = 87.5 // 7 okta
 const val CLOUD_COVER_OVC = 100.0 // 8 okta
 
-val cloudCoverScaleThresholds = listOf(
-    0.0,
-    CLOUD_COVER_SKC,
-    CLOUD_COVER_FEW,
-    CLOUD_COVER_SCT,
-    CLOUD_COVER_BKN,
-    CLOUD_COVER_OVC
-)
+fun Ratio.getCloudCoverColor(context: Context): Int {
+    return when (inPercent) {
+        in 0.0..<CLOUD_COVER_FEW -> ContextCompat.getColor(context, R.color.colorLevel_1)
+        in CLOUD_COVER_FEW..CLOUD_COVER_SCT -> ContextCompat.getColor(context, R.color.colorLevel_2)
+        in CLOUD_COVER_SCT..100.0 -> ContextCompat.getColor(context, R.color.colorLevel_3)
+        else -> Color.TRANSPARENT
+    }
+}
 
 /**
  * @param context
- * @param cloudCover in % (0-100)
  */
-fun getCloudCoverDescription(context: Context, cloudCover: Int?): String? {
-    if (cloudCover == null) return null
-    return when (cloudCover) {
-        in 0..<CLOUD_COVER_SKC.roundToInt() -> context.getString(R.string.common_weather_text_clear_sky)
-        in CLOUD_COVER_SKC.roundToInt()..<CLOUD_COVER_FEW.roundToInt() -> {
-            context.getString(R.string.common_weather_text_mostly_clear)
-        }
-        in CLOUD_COVER_FEW.roundToInt()..<CLOUD_COVER_SCT.roundToInt() -> {
-            context.getString(R.string.common_weather_text_partly_cloudy)
-        }
-        in CLOUD_COVER_SCT.roundToInt()..<CLOUD_COVER_BKN.roundToInt() -> {
-            context.getString(R.string.common_weather_text_mostly_cloudy)
-        }
-        in CLOUD_COVER_BKN.roundToInt()..CLOUD_COVER_OVC.roundToInt() -> {
-            context.getString(R.string.common_weather_text_cloudy)
-        }
+fun Ratio.getCloudCoverDescription(context: Context): String? {
+    return when (inPercent) {
+        in 0.0..<CLOUD_COVER_SKC -> context.getString(R.string.common_weather_text_clear_sky)
+        in CLOUD_COVER_SKC..<CLOUD_COVER_FEW -> context.getString(R.string.common_weather_text_mostly_clear)
+        in CLOUD_COVER_FEW..<CLOUD_COVER_SCT -> context.getString(R.string.common_weather_text_partly_cloudy)
+        in CLOUD_COVER_SCT..<CLOUD_COVER_BKN -> context.getString(R.string.common_weather_text_mostly_cloudy)
+        in CLOUD_COVER_BKN..CLOUD_COVER_OVC -> context.getString(R.string.common_weather_text_cloudy)
         else -> null
     }
 }

app/src/main/java/org/breezyweather/common/options/appearance/DetailScreen.kt

@@ -71,19 +71,17 @@ enum class DetailScreen(
                                 (it.uV?.index ?: 0.0) > 0.0
                             } == true
                         TAG_HUMIDITY -> location.weather?.dailyForecast?.any {
-                            (it.relativeHumidity?.min ?: 0.0) > 0.0 || (it.relativeHumidity?.max ?: 0.0) > 0.0
+                            it.relativeHumidity?.min != null || it.relativeHumidity?.max != null
                         } == true ||
                             location.weather?.hourlyForecast?.any {
-                                (it.relativeHumidity ?: 0.0) > 0.0 || (it.dewPoint ?: 0.0) != 0.0
+                                it.relativeHumidity != null || it.dewPoint != null
                             } == true
                         TAG_PRESSURE -> location.weather?.dailyForecast?.any { it.pressure?.average != null } == true ||
                             location.weather?.hourlyForecast?.any { it.pressure != null } == true
                         TAG_CLOUD_COVER -> location.weather?.dailyForecast?.any {
-                            (it.cloudCover?.min ?: 0) > 0 || (it.cloudCover?.max ?: 0) > 0
+                            it.cloudCover?.min != null || it.cloudCover?.max != null
                         } == true ||
-                            location.weather?.hourlyForecast?.any {
-                                (it.cloudCover ?: 0) > 0
-                            } == true
+                            location.weather?.hourlyForecast?.any { it.cloudCover != null } == true
                         TAG_VISIBILITY -> location.weather?.dailyForecast?.any {
                             it.visibility?.min != null || it.visibility?.max != null
                         } == true ||

app/src/main/java/org/breezyweather/common/utils/UnitUtils.kt

@@ -18,12 +18,6 @@ package org.breezyweather.common.utils
 
 import android.content.Context
 import android.content.res.Resources
-import android.icu.number.LocalizedNumberFormatter
-import android.icu.number.NumberFormatter
-import android.icu.number.Precision
-import android.icu.text.NumberFormat
-import android.icu.util.MeasureUnit
-import android.os.Build
 import android.text.SpannableString
 import android.text.Spanned
 import android.text.style.RelativeSizeSpan
@@ -116,62 +110,6 @@ object UnitUtils {
         )
     }
 
-    @Deprecated("Use Number.format() extension")
-    fun formatNumber(
-        context: Context,
-        valueWithoutUnit: Number,
-        precision: Int,
-        showSign: Boolean = false,
-    ): String {
-        return valueWithoutUnit.format(
-            decimals = precision,
-            locale = context.currentLocale,
-            showSign = showSign,
-            useNumberFormatter = SettingsManager.Companion.getInstance(context).useNumberFormatter,
-            useMeasureFormat = SettingsManager.Companion.getInstance(context).useMeasureFormat
-        )
-    }
-
-    /**
-     * Uses LocalizedNumberFormatter on Android SDK >= 30 (which is the recommended way)
-     * Uses NumberFormat on Android SDK >= 24
-     * Uses java.text.NumberFormat on Android SDK < 24
-     *
-     * @param context
-     * @param value between 0.0 and 100.0
-     * @param precision
-     */
-    fun formatPercent(
-        context: Context,
-        value: Double,
-        precision: Int = 0,
-    ): String {
-        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R &&
-            SettingsManager.Companion.getInstance(context).useNumberFormatter
-        ) {
-            (NumberFormatter.withLocale(context.currentLocale) as LocalizedNumberFormatter)
-                .precision(if (precision == 0) Precision.integer() else Precision.maxFraction(precision))
-                .unit(MeasureUnit.PERCENT)
-                .format(value)
-                .toString()
-        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-            NumberFormat.getPercentInstance(context.currentLocale)
-                .apply { maximumFractionDigits = precision }
-                .format(if (value > 0) value.div(100.0) else 0)
-        } else {
-            java.text.NumberFormat.getPercentInstance(context.currentLocale)
-                .apply { maximumFractionDigits = precision }
-                .format(if (value > 0) value.div(100.0) else 0)
-        }
-    }
-
-    fun formatPercent(
-        context: Context,
-        value: Int,
-    ): String {
-        return formatPercent(context, value.toDouble(), 0)
-    }
-
     /**
      * Units will stay at the same size if it somehow fails to parse
      */
@@ -263,14 +201,6 @@ object UnitUtils {
         }
     }
 
-    fun validatePercent(percent: Double?): Double? {
-        return percent?.let { if (it in 0.0..100.0) it else null }
-    }
-
-    fun validatePercent(percent: Int?): Int? {
-        return percent?.let { if (it in 0..100) it else null }
-    }
-
     private val ARABIC_DIGITS = charArrayOf('0', '1', '2', '3', '4', '5', '6', '7', '8', '9')
     private val ARABIC_INDIC_DIGITS = charArrayOf('٠', '١', '٢', '٣', '٤', '٥', '٦', '٧', '٨', '٩')
     private val BENGALI_DIGITS = charArrayOf('০', '১', '২', '৩', '৪', '৫', '৬', '৭', '৮', '৯')

app/src/main/java/org/breezyweather/domain/weather/model/DailyCloudCover.kt

@@ -19,19 +19,20 @@ package org.breezyweather.domain.weather.model
 import android.content.Context
 import breezyweather.domain.weather.model.DailyCloudCover
 import org.breezyweather.R
+import org.breezyweather.common.extensions.formatPercent
+import org.breezyweather.common.extensions.formatValue
 import org.breezyweather.common.extensions.getCloudCoverDescription
-import org.breezyweather.common.utils.UnitUtils
 
 fun DailyCloudCover.getRangeSummary(context: Context): String? {
     return if (min == null || max == null) {
         null
     } else if (min == max) {
-        UnitUtils.formatPercent(context, max!!)
+        max!!.formatPercent(context)
     } else {
         context.getString(
             R.string.cloud_cover_from_to_number,
-            UnitUtils.formatInt(context, min!!),
-            UnitUtils.formatPercent(context, max!!)
+            min!!.formatValue(context),
+            max!!.formatPercent(context)
         )
     }
 }
@@ -40,8 +41,8 @@ fun DailyCloudCover.getRangeDescriptionSummary(context: Context): String? {
     return if (min == null || max == null) {
         null
     } else {
-        val minDescription = getCloudCoverDescription(context, min)
-        val maxDescription = getCloudCoverDescription(context, max)
+        val minDescription = min!!.getCloudCoverDescription(context)
+        val maxDescription = max!!.getCloudCoverDescription(context)
 
         if (minDescription == maxDescription) {
             maxDescription

app/src/main/java/org/breezyweather/domain/weather/model/DailyRelativeHumidity.kt

@@ -19,18 +19,19 @@ package org.breezyweather.domain.weather.model
 import android.content.Context
 import breezyweather.domain.weather.model.DailyRelativeHumidity
 import org.breezyweather.R
-import org.breezyweather.common.utils.UnitUtils
+import org.breezyweather.common.extensions.formatPercent
+import org.breezyweather.common.extensions.formatValue
 
 fun DailyRelativeHumidity.getRangeSummary(context: Context): String? {
     return if (min == null || max == null) {
         null
     } else if (min == max) {
-        UnitUtils.formatPercent(context, max!!)
+        max!!.formatPercent(context)
     } else {
         context.getString(
             R.string.humidity_from_to_number,
-            UnitUtils.formatDouble(context, min!!),
-            UnitUtils.formatPercent(context, max!!)
+            min!!.formatValue(context),
+            max!!.formatPercent(context)
         )
     }
 }

app/src/main/java/org/breezyweather/domain/weather/model/Hourly.kt

@@ -1,38 +0,0 @@
-/*
- * This file is part of Breezy Weather.
- *
- * Breezy Weather is free software: you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by the
- * Free Software Foundation, version 3 of the License.
- *
- * Breezy Weather is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- * License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with Breezy Weather. If not, see <https://www.gnu.org/licenses/>.
- */
-
-package org.breezyweather.domain.weather.model
-
-import android.content.Context
-import android.graphics.Color
-import androidx.annotation.ColorInt
-import androidx.core.content.ContextCompat
-import breezyweather.domain.weather.model.Hourly
-import org.breezyweather.R
-
-@ColorInt
-fun Hourly.getCloudCoverColor(context: Context): Int {
-    if (cloudCover == null) return Color.TRANSPARENT
-    return when (cloudCover!!.toDouble()) {
-        in 0.0..CLOUD_COVER_CLEAR -> ContextCompat.getColor(context, R.color.colorLevel_1)
-        in CLOUD_COVER_CLEAR..CLOUD_COVER_PARTLY -> ContextCompat.getColor(context, R.color.colorLevel_2)
-        in CLOUD_COVER_PARTLY..100.0 -> ContextCompat.getColor(context, R.color.colorLevel_3)
-        else -> Color.TRANSPARENT
-    }
-}
-
-const val CLOUD_COVER_CLEAR = 37.5
-const val CLOUD_COVER_PARTLY = 75.0

app/src/main/java/org/breezyweather/remoteviews/config/AbstractWidgetConfigActivity.kt

@@ -59,6 +59,7 @@ import com.google.android.material.textfield.TextInputLayout
 import org.breezyweather.R
 import org.breezyweather.common.activities.BreezyActivity
 import org.breezyweather.common.extensions.doOnApplyWindowInsets
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getTabletListAdaptiveWidth
 import org.breezyweather.common.extensions.hasPermission
 import org.breezyweather.common.extensions.launchUI
@@ -68,6 +69,8 @@ import org.breezyweather.common.snackbar.SnackbarManager
 import org.breezyweather.common.utils.UnitUtils
 import org.breezyweather.common.utils.helpers.SnackbarHelper
 import org.breezyweather.domain.settings.ConfigStore
+import org.breezyweather.unit.formatting.UnitWidth
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import kotlin.math.max
 import kotlin.math.min
 import kotlin.math.roundToInt
@@ -355,7 +358,7 @@ abstract class AbstractWidgetConfigActivity : BreezyActivity() {
             valueTo = 100f
             value = ((cardAlpha.toDouble() / 10.0).roundToInt() * 10.0).toFloat()
             setLabelFormatter { value: Float ->
-                UnitUtils.formatPercent(context, value.toDouble())
+                value.toDouble().percent.formatPercent(context, UnitWidth.NARROW)
             }
             addOnChangeListener { _, value, _ ->
                 if (cardAlpha != value.roundToInt()) {
@@ -418,7 +421,7 @@ abstract class AbstractWidgetConfigActivity : BreezyActivity() {
                 }
             }
             setLabelFormatter { value: Float ->
-                UnitUtils.formatPercent(context, value.toDouble())
+                value.toDouble().percent.formatPercent(context, UnitWidth.NARROW)
             }
         }
 
@@ -480,6 +483,14 @@ abstract class AbstractWidgetConfigActivity : BreezyActivity() {
         }
         mBottomSheetScrollView = findViewById(R.id.activity_widget_config_custom_scrollView)
         mSubtitleInputLayout = findViewById(R.id.activity_widget_config_subtitle_inputLayout)
+        mSubtitleInputLayout?.setEndIconOnClickListener {
+            val message = getString(R.string.widget_custom_subtitle_explanation) + "\n\n" + subtitleCustomKeywords
+            MaterialAlertDialogBuilder(this)
+                .setTitle(R.string.widget_custom_subtitle_alert_box_title)
+                .setMessage(message)
+                .setPositiveButton(R.string.action_done, null)
+                .show()
+        }
         mSubtitleEditText = findViewById<TextInputEditText>(R.id.activity_widget_config_subtitle_inputter).apply {
             addTextChangedListener(object : TextWatcher {
                 override fun beforeTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {
@@ -509,15 +520,6 @@ abstract class AbstractWidgetConfigActivity : BreezyActivity() {
             mBottomSheetBehavior!!.peekHeight = mSubtitleInputLayout!!.measuredHeight
             setBottomSheetState(isCustomSubtitle)
         }
-        val subtitleInputLayout = findViewById<TextInputLayout>(R.id.activity_widget_config_subtitle_inputLayout)
-        subtitleInputLayout.setEndIconOnClickListener {
-            val message = getString(R.string.widget_custom_subtitle_explanation) + "\n\n" + subtitleCustomKeywords
-            MaterialAlertDialogBuilder(this)
-                .setTitle(R.string.widget_custom_subtitle_alert_box_title)
-                .setMessage(message)
-                .setPositiveButton(R.string.action_done, null)
-                .show()
-        }
     }
 
     abstract fun updateWidgetView()

app/src/main/java/org/breezyweather/remoteviews/presenters/AbstractRemoteViewsPresenter.kt

@@ -33,6 +33,7 @@ import breezyweather.domain.location.model.Location
 import breezyweather.domain.weather.model.Weather
 import org.breezyweather.R
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getFormattedDate
 import org.breezyweather.common.extensions.getFormattedMediumDayAndMonth
 import org.breezyweather.common.extensions.getFormattedMediumDayAndMonthInAdditionalCalendar
@@ -317,9 +318,8 @@ abstract class AbstractRemoteViewsPresenter {
                         ?: context.getString(R.string.null_data_text)
                 ).replace(
                     "\$ch$",
-                    weather.current?.relativeHumidity?.let {
-                        UnitUtils.formatPercent(context, it)
-                    } ?: context.getString(R.string.null_data_text)
+                    weather.current?.relativeHumidity?.formatPercent(context, UnitWidth.NARROW)
+                        ?: context.getString(R.string.null_data_text)
                 ).replace(
                     "\$cps$",
                     weather.current?.pressure?.formatMeasure(context)
@@ -466,14 +466,14 @@ abstract class AbstractRemoteViewsPresenter {
                     ) ?: context.getString(R.string.null_data_text)
                 ).replace(
                     "$" + i + "dp$",
-                    weather.dailyForecastStartingToday.getOrNull(i)?.day?.precipitationProbability?.total?.let {
-                        UnitUtils.formatPercent(context, it)
-                    } ?: context.getString(R.string.null_data_text)
+                    weather.dailyForecastStartingToday.getOrNull(i)?.day?.precipitationProbability?.total
+                        ?.formatPercent(context, UnitWidth.NARROW)
+                        ?: context.getString(R.string.null_data_text)
                 ).replace(
                     "$" + i + "np$",
-                    weather.dailyForecastStartingToday.getOrNull(i)?.night?.precipitationProbability?.total?.let {
-                        UnitUtils.formatPercent(context, it)
-                    } ?: context.getString(R.string.null_data_text)
+                    weather.dailyForecastStartingToday.getOrNull(i)?.night?.precipitationProbability?.total
+                        ?.formatPercent(context, UnitWidth.NARROW)
+                        ?: context.getString(R.string.null_data_text)
                 ).replace(
                     "$" + i + "dwd$",
                     weather.dailyForecastStartingToday.getOrNull(i)?.day?.wind?.getShortDescription(context)

app/src/main/java/org/breezyweather/remoteviews/presenters/ClockDayDetailsWidgetIMP.kt

@@ -29,6 +29,7 @@ import breezyweather.domain.weather.model.Weather
 import org.breezyweather.R
 import org.breezyweather.background.receiver.widget.WidgetClockDayDetailsProvider
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getFormattedMediumDayAndMonthInAdditionalCalendar
 import org.breezyweather.common.extensions.getShortWeekdayDayMonth
 import org.breezyweather.common.options.appearance.CalendarHelper
@@ -288,7 +289,7 @@ object ClockDayDetailsWidgetIMP : AbstractRemoteViewsPresenter() {
             weather.current?.relativeHumidity?.let {
                 context.getString(R.string.humidity) +
                     context.getString(R.string.colon_separator) +
-                    UnitUtils.formatPercent(context, it)
+                    it.formatPercent(context, UnitWidth.NARROW)
             }
         }
     }

app/src/main/java/org/breezyweather/remoteviews/presenters/DailyTrendWidgetIMP.kt

@@ -34,6 +34,7 @@ import breezyweather.domain.location.model.Location
 import org.breezyweather.R
 import org.breezyweather.background.receiver.widget.WidgetTrendDailyProvider
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getCalendarMonth
 import org.breezyweather.common.extensions.getFormattedShortDayAndMonth
 import org.breezyweather.common.extensions.getTabletListAdaptiveWidth
@@ -217,12 +218,10 @@ object DailyTrendWidgetIMP : AbstractRemoteViewsPresenter() {
                         ResourceHelper.getWidgetNotificationIcon(provider, it, true, minimalIcon, lightTheme)
                     )
                 }
-                val daytimePrecipitationProbability = daily.day?.precipitationProbability?.total?.toFloat()
-                val nighttimePrecipitationProbability = daily.night?.precipitationProbability?.total?.toFloat()
-                val p = max(
-                    daytimePrecipitationProbability ?: 0f,
-                    nighttimePrecipitationProbability ?: 0f
-                )
+                val daytimePrecipitationProbability = daily.day?.precipitationProbability?.total
+                val nighttimePrecipitationProbability = daily.night?.precipitationProbability?.total
+                val p = listOfNotNull(daytimePrecipitationProbability, nighttimePrecipitationProbability)
+                    .takeIf { it.isNotEmpty() }?.maxBy { it.value }
                 widgetItemView.trendItemView.setData(
                     buildTemperatureArrayForItem(daytimeTemperatures, i),
                     buildTemperatureArrayForItem(nighttimeTemperatures, i),
@@ -238,12 +237,8 @@ object DailyTrendWidgetIMP : AbstractRemoteViewsPresenter() {
                     ),
                     highestTemperature,
                     lowestTemperature,
-                    if (p > 0) p else null,
-                    if (p > 0) {
-                        UnitUtils.formatPercent(context, p.toDouble())
-                    } else {
-                        null
-                    },
+                    p?.takeIf { it.value > 0 }?.inPercent?.toFloat(),
+                    p?.takeIf { it.value > 0 }?.formatPercent(context, UnitWidth.NARROW),
                     100f,
                     0f
                 )

app/src/main/java/org/breezyweather/sources/CommonConverter.kt

@@ -45,7 +45,6 @@ import org.breezyweather.common.extensions.CLOUD_COVER_FEW
 import org.breezyweather.common.extensions.ensurePositive
 import org.breezyweather.common.extensions.getIsoFormattedDate
 import org.breezyweather.common.extensions.toCalendarWithTimeZone
-import org.breezyweather.common.utils.UnitUtils
 import org.breezyweather.domain.weather.index.PollutantIndex
 import org.breezyweather.domain.weather.model.validate
 import org.breezyweather.ui.theme.weatherView.WeatherViewController
@@ -58,6 +57,10 @@ import org.breezyweather.unit.precipitation.Precipitation.Companion.micrometers
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure
 import org.breezyweather.unit.pressure.Pressure.Companion.pascals
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.Ratio.Companion.fraction
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
+import org.breezyweather.unit.ratio.Ratio.Companion.permille
 import org.breezyweather.unit.speed.Speed
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
@@ -224,13 +227,13 @@ internal fun computeMissingHourlyData(
             ice = hourly.precipitation!!.ice?.toValidHourlyOrNull()
         )
         val precipitationProbability = hourly.precipitationProbability?.copy(
-            total = UnitUtils.validatePercent(hourly.precipitationProbability!!.total),
-            thunderstorm = UnitUtils.validatePercent(hourly.precipitationProbability!!.thunderstorm),
-            rain = UnitUtils.validatePercent(hourly.precipitationProbability!!.rain),
-            snow = UnitUtils.validatePercent(hourly.precipitationProbability!!.snow),
-            ice = UnitUtils.validatePercent(hourly.precipitationProbability!!.ice)
+            total = hourly.precipitationProbability!!.total?.toValidRangeOrNull(),
+            thunderstorm = hourly.precipitationProbability!!.thunderstorm?.toValidRangeOrNull(),
+            rain = hourly.precipitationProbability!!.rain?.toValidRangeOrNull(),
+            snow = hourly.precipitationProbability!!.snow?.toValidRangeOrNull(),
+            ice = hourly.precipitationProbability!!.ice?.toValidRangeOrNull()
         )
-        val cloudCover = UnitUtils.validatePercent(hourly.cloudCover)
+        val cloudCover = hourly.cloudCover?.toValidRangeOrNull()
         val visibility = hourly.visibility?.toValidOrNull()
         val weatherCode = hourly.weatherCode ?: getHalfDayWeatherCodeFromHourlyList(
             listOf(hourly.toHourly()),
@@ -240,7 +243,7 @@ internal fun computeMissingHourlyData(
             cloudCover,
             visibility
         )
-        val relativeHumidity = UnitUtils.validatePercent(hourly.relativeHumidity)
+        val relativeHumidity = hourly.relativeHumidity?.toValidRangeOrNull()
             ?: computeRelativeHumidity(temp, hourly.dewPoint?.toValidOrNull())
         val dewPoint = hourly.dewPoint?.toValidOrNull()
             ?: computeDewPoint(temp, relativeHumidity)
@@ -279,16 +282,16 @@ internal fun computeMissingHourlyData(
 private fun computeRelativeHumidity(
     temperature: Temperature?,
     dewPoint: Temperature?,
-): Double? {
+): Ratio? {
     if (temperature == null || dewPoint == null) return null
 
     val b = if (temperature < 0.celsius) 17.966 else 17.368
     val c = if (temperature < 0.celsius) 227.15 else 238.88 // °C
 
-    return 100 * (
+    return (
         exp((b * dewPoint.inCelsius).div(c + dewPoint.inCelsius)) /
             exp((b * temperature.inCelsius).div(c + temperature.inCelsius))
-        )
+        ).fraction
 }
 
 /**
@@ -297,18 +300,18 @@ private fun computeRelativeHumidity(
  * TODO: Unit test
  *
  * @param temperature
- * @param relativeHumidity in %
+ * @param relativeHumidity
  */
 private fun computeDewPoint(
     temperature: Temperature?,
-    relativeHumidity: Double?,
+    relativeHumidity: Ratio?,
 ): Temperature? {
     if (temperature == null || relativeHumidity == null) return null
 
     val b = if (temperature < 0.celsius) 17.966 else 17.368
     val c = if (temperature < 0.celsius) 227.15 else 238.88 // °C
 
-    val magnus = ln(relativeHumidity / 100) + (b * temperature.inCelsius) / (c + temperature.inCelsius)
+    val magnus = ln(relativeHumidity.inFraction) + (b * temperature.inCelsius) / (c + temperature.inCelsius)
     return ((c * magnus) / (b - magnus)).celsius
 }
 
@@ -319,16 +322,17 @@ private fun computeDewPoint(
  * TODO: Unit test
  *
  * @param temperature
- * @param relativeHumidity in %
+ * @param relativeHumidity
+ * @param windSpeed
  */
 internal fun computeApparentTemperature(
     temperature: Temperature?,
-    relativeHumidity: Double?,
+    relativeHumidity: Ratio?,
     windSpeed: Speed?,
 ): Temperature? {
     if (temperature == null || relativeHumidity == null || windSpeed == null) return null
 
-    val e = relativeHumidity.div(100) * 6.105 * exp(17.27 * temperature.inCelsius / (237.7 + temperature.inCelsius))
+    val e = relativeHumidity.inFraction * 6.105 * exp(17.27 * temperature.inCelsius / (237.7 + temperature.inCelsius))
     return (temperature.inCelsius + 0.33 * e - 0.7 * windSpeed.inMetersPerSecond - 4.0).celsius
 }
 
@@ -878,11 +882,11 @@ private fun completeHalfDayFromHourlyList(
     }
 
     val initialPrecipitationProbability = newHalfDay.precipitationProbability?.copy(
-        total = UnitUtils.validatePercent(newHalfDay.precipitationProbability!!.total),
-        thunderstorm = UnitUtils.validatePercent(newHalfDay.precipitationProbability!!.thunderstorm),
-        rain = UnitUtils.validatePercent(newHalfDay.precipitationProbability!!.rain),
-        snow = UnitUtils.validatePercent(newHalfDay.precipitationProbability!!.snow),
-        ice = UnitUtils.validatePercent(newHalfDay.precipitationProbability!!.ice)
+        total = newHalfDay.precipitationProbability!!.total?.toValidRangeOrNull(),
+        thunderstorm = newHalfDay.precipitationProbability!!.thunderstorm?.toValidRangeOrNull(),
+        rain = newHalfDay.precipitationProbability!!.rain?.toValidRangeOrNull(),
+        snow = newHalfDay.precipitationProbability!!.snow?.toValidRangeOrNull(),
+        ice = newHalfDay.precipitationProbability!!.ice?.toValidRangeOrNull()
     )
     val maxPrecipitationProbability = if (initialPrecipitationProbability?.total == null) {
         getHalfDayPrecipitationProbabilityFromHourlyList(halfDayHourlyList)
@@ -963,11 +967,11 @@ private fun getHalfDayWeatherCodeFromHourlyList(
     totPrecipitation: Precipitation?,
     maxPrecipitationProbability: PrecipitationProbability?,
     maxWind: Wind?,
-    avgCloudCover: Int?,
+    avgCloudCover: Ratio?,
     avgVisibility: Distance?,
 ): WeatherCode? {
-    val minPrecipIntensity = 1.0.millimeters // in mm
-    val minPrecipProbability = 30.0 // in %
+    val minPrecipIntensity = 1.0.millimeters
+    val minPrecipProbability = 30.percent
     val maxVisibilityHaze = 5000.meters
     val maxVisibilityFog = 1000.meters
     val maxWindSpeedWindy = 10.metersPerSecond
@@ -975,7 +979,7 @@ private fun getHalfDayWeatherCodeFromHourlyList(
     // If total precipitation is greater than 1 mm
     // and max probability is greater than 30 % (assume 100 % if not reported)
     if ((totPrecipitation?.total ?: 0.0.millimeters) > minPrecipIntensity &&
-        (maxPrecipitationProbability?.total ?: 100.0) > minPrecipProbability
+        (maxPrecipitationProbability?.total ?: 100.percent) > minPrecipProbability
     ) {
         val isRain = maxPrecipitationProbability?.rain?.let { it > minPrecipProbability }
             ?: totPrecipitation!!.rain?.let { it.value > 0 }
@@ -1047,8 +1051,8 @@ private fun getHalfDayWeatherCodeFromHourlyList(
 
     // It’s not raining, it’s not windy, and it’s not mysterious. Just cloudy
     if (avgCloudCover != null) {
-        if (avgCloudCover > CLOUD_COVER_BKN) return WeatherCode.CLOUDY
-        if (avgCloudCover > CLOUD_COVER_FEW) return WeatherCode.PARTLY_CLOUDY
+        if (avgCloudCover > CLOUD_COVER_BKN.percent) return WeatherCode.CLOUDY
+        if (avgCloudCover > CLOUD_COVER_FEW.percent) return WeatherCode.PARTLY_CLOUDY
         return WeatherCode.CLEAR
     }
 
@@ -1230,10 +1234,9 @@ private fun getHalfDayWindFromHourlyList(
 
 private fun getHalfDayCloudCoverFromHourlyList(
     halfDayHourlyList: List<Hourly>,
-): Int? {
+): Ratio? {
     // average() would return NaN when called for an empty list
-    return halfDayHourlyList.mapNotNull { it.cloudCover }
-        .takeIf { it.isNotEmpty() }?.average()?.roundToInt()
+    return halfDayHourlyList.mapNotNull { it.cloudCover?.value }.takeIf { it.isNotEmpty() }?.average()?.permille
 }
 
 private fun getHalfDayAvgVisibilityFromHourlyList(
@@ -1340,16 +1343,16 @@ private fun getSunshineDuration(
 
 fun getDailyRelativeHumidity(
     initialDailyRelativeHumidity: DailyRelativeHumidity?,
-    values: List<Double>?,
+    values: List<Ratio>?,
 ): DailyRelativeHumidity? {
     if (values.isNullOrEmpty()) return initialDailyRelativeHumidity
 
     return DailyRelativeHumidity(
-        average = UnitUtils.validatePercent(initialDailyRelativeHumidity?.average)
-            ?: values.average(),
-        min = UnitUtils.validatePercent(initialDailyRelativeHumidity?.min)
+        average = initialDailyRelativeHumidity?.average?.toValidRangeOrNull()
+            ?: values.map { it.value }.average().permille,
+        min = initialDailyRelativeHumidity?.min?.toValidRangeOrNull()
             ?: values.min(),
-        max = UnitUtils.validatePercent(initialDailyRelativeHumidity?.max)
+        max = initialDailyRelativeHumidity?.max?.toValidRangeOrNull()
             ?: values.max()
     )
 }
@@ -1388,16 +1391,16 @@ fun getDailyPressure(
 
 fun getDailyCloudCover(
     initialDailyCloudCover: DailyCloudCover?,
-    values: List<Int>?,
+    values: List<Ratio>?,
 ): DailyCloudCover? {
     if (values.isNullOrEmpty()) return initialDailyCloudCover
 
     return DailyCloudCover(
-        average = UnitUtils.validatePercent(initialDailyCloudCover?.average)
-            ?: values.average().roundToInt(),
-        min = UnitUtils.validatePercent(initialDailyCloudCover?.min)
+        average = initialDailyCloudCover?.average?.toValidRangeOrNull()
+            ?: values.map { it.value }.average().permille,
+        min = initialDailyCloudCover?.min?.toValidRangeOrNull()
             ?: values.min(),
-        max = UnitUtils.validatePercent(initialDailyCloudCover?.max)
+        max = initialDailyCloudCover?.max?.toValidRangeOrNull()
             ?: values.max()
     )
 }
@@ -1576,7 +1579,7 @@ internal fun completeCurrentFromHourlyData(
     val initialFeelsLike = newCurrent.temperature?.feelsLike?.toValidOrNull()
     val initialWind = newCurrent.wind?.validate()
     val newWind = if (initialWind?.speed != null || hourly.wind?.speed == null) initialWind else hourly.wind
-    val newRelativeHumidity = UnitUtils.validatePercent(newCurrent.relativeHumidity)
+    val newRelativeHumidity = newCurrent.relativeHumidity?.toValidRangeOrNull()
         ?: hourly.relativeHumidity
     val newDewPoint = newCurrent.dewPoint?.toValidOrNull()
         ?: if (newRelativeHumidity != null || initialTemp != null) {
@@ -1623,7 +1626,7 @@ internal fun completeCurrentFromHourlyData(
         relativeHumidity = newRelativeHumidity,
         dewPoint = newDewPoint,
         pressure = newCurrent.pressure?.toValidOrNull() ?: hourly.pressure,
-        cloudCover = UnitUtils.validatePercent(newCurrent.cloudCover) ?: hourly.cloudCover,
+        cloudCover = newCurrent.cloudCover?.toValidRangeOrNull() ?: hourly.cloudCover,
         visibility = newCurrent.visibility?.toValidOrNull() ?: hourly.visibility,
         ceiling = newCurrent.ceiling?.toValidOrNull()
     )
@@ -1634,7 +1637,7 @@ private fun completeCurrentTemperatureFromHourly(
     initialFeelsLike: Temperature?,
     hourlyTemperature: breezyweather.domain.weather.model.Temperature?,
     windSpeed: Speed?,
-    relativeHumidity: Double?,
+    relativeHumidity: Ratio?,
     dewPoint: Temperature?,
 ): breezyweather.domain.weather.model.Temperature? {
     if (initialTemp == null) return hourlyTemperature

app/src/main/java/org/breezyweather/sources/brightsky/BrightSkyService.kt

@@ -61,6 +61,7 @@ import org.breezyweather.sources.brightsky.json.BrightSkyWeatherResult
 import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -215,10 +216,10 @@ class BrightSkyService @Inject constructor(
                 speed = result.windSpeed?.kilometersPerHour,
                 gusts = result.windGustSpeed?.kilometersPerHour
             ),
-            relativeHumidity = result.relativeHumidity?.toDouble(),
+            relativeHumidity = result.relativeHumidity?.percent,
             dewPoint = result.dewPoint?.celsius,
             pressure = result.pressure?.hectopascals,
-            cloudCover = result.cloudCover,
+            cloudCover = result.cloudCover?.percent,
             visibility = result.visibility?.meters
         )
     }
@@ -268,17 +269,17 @@ class BrightSkyService @Inject constructor(
                     total = result.precipitation?.millimeters
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = result.precipitationProbability?.toDouble()
+                    total = result.precipitationProbability?.percent
                 ),
                 wind = Wind(
                     degree = result.windDirection?.toDouble(),
                     speed = result.windSpeed?.kilometersPerHour,
                     gusts = result.windGustSpeed?.kilometersPerHour
                 ),
-                relativeHumidity = result.relativeHumidity?.toDouble(),
+                relativeHumidity = result.relativeHumidity?.percent,
                 dewPoint = result.dewPoint?.celsius,
                 pressure = result.pressure?.hectopascals,
-                cloudCover = result.cloudCover,
+                cloudCover = result.cloudCover?.percent,
                 visibility = result.visibility?.toDouble()?.meters,
                 sunshineDuration = result.sunshine?.minutes
             )

app/src/main/java/org/breezyweather/sources/debug/DebugService.kt

@@ -36,13 +36,13 @@ import org.breezyweather.common.source.WeatherSource
 import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.fraction
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import java.util.Calendar
 import java.util.Date
 import java.util.TimeZone
 import javax.inject.Inject
-import kotlin.math.roundToInt
 import kotlin.random.Random
 import kotlin.time.Duration.Companion.milliseconds
 import kotlin.time.Duration.Companion.minutes
@@ -146,7 +146,7 @@ class DebugService @Inject constructor() : WeatherSource {
             dewPoint = Math.random().times(10).plus(5).celsius,
             pressure = Math.random().times(100).plus(963).hectopascals,
             visibility = Math.random().times(50000).meters,
-            cloudCover = Math.random().times(100).roundToInt()
+            cloudCover = Math.random().fraction
         )
     }
 

app/src/main/java/org/breezyweather/sources/gadgetbridge/GadgetbridgeService.kt

@@ -83,7 +83,7 @@ class GadgetbridgeService @Inject constructor() : BroadcastSource {
             currentTemp = current?.temperature?.temperature?.inKelvins?.roundToInt(),
             currentConditionCode = getWeatherCode(current?.weatherCode),
             currentCondition = current?.weatherText,
-            currentHumidity = current?.relativeHumidity?.roundToInt(),
+            currentHumidity = current?.relativeHumidity?.inPercent?.roundToInt(),
             windSpeed = current?.wind?.speed?.inKilometersPerHour?.toFloat(),
             windDirection = current?.wind?.degree?.roundToInt(),
             uvIndex = current?.uV?.index?.toFloat(),
@@ -94,11 +94,11 @@ class GadgetbridgeService @Inject constructor() : BroadcastSource {
             precipProbability = maxOfNullable(
                 today?.day?.precipitationProbability?.total,
                 today?.night?.precipitationProbability?.total
-            )?.roundToInt(),
+            )?.inPercent?.roundToInt(),
 
             dewPoint = current?.dewPoint?.inKelvins?.roundToInt(),
             pressure = current?.pressure?.inHectopascals?.toFloat(),
-            cloudCover = current?.cloudCover,
+            cloudCover = current?.cloudCover?.inPercent?.roundToInt(),
             visibility = current?.visibility?.inMeters?.toFloat(),
 
             sunRise = today?.sun?.riseDate?.time?.div(1000)?.toInt(),
@@ -125,14 +125,14 @@ class GadgetbridgeService @Inject constructor() : BroadcastSource {
                 conditionCode = getWeatherCode(day.day?.weatherCode),
                 maxTemp = day.day?.temperature?.temperature?.inKelvins?.roundToInt(),
                 minTemp = day.night?.temperature?.temperature?.inKelvins?.roundToInt(),
-                humidity = day.relativeHumidity?.average?.roundToInt(),
+                humidity = day.relativeHumidity?.average?.inPercent?.roundToInt(),
                 windSpeed = maxWind?.speed?.inKilometersPerHour?.toFloat(),
                 windDirection = maxWind?.degree?.roundToInt(),
                 uvIndex = day.uV?.index?.toFloat(),
                 precipProbability = maxOfNullable(
                     day.day?.precipitationProbability?.total,
                     day.night?.precipitationProbability?.total
-                )?.roundToInt(),
+                )?.inPercent?.roundToInt(),
 
                 sunRise = day.sun?.riseDate?.time?.div(1000)?.toInt(),
                 sunSet = day.sun?.setDate?.time?.div(1000)?.toInt(),
@@ -174,11 +174,11 @@ class GadgetbridgeService @Inject constructor() : BroadcastSource {
                 timestamp = hour.date.time.div(1000).toInt(),
                 temp = hour.temperature?.temperature?.inKelvins?.roundToInt(),
                 conditionCode = getWeatherCode(hour.weatherCode),
-                humidity = hour.relativeHumidity?.roundToInt(),
+                humidity = hour.relativeHumidity?.inPercent?.roundToInt(),
                 windSpeed = hour.wind?.speed?.inKilometersPerHour?.toFloat(),
                 windDirection = hour.wind?.degree?.roundToInt(),
                 uvIndex = hour.uV?.index?.toFloat(),
-                precipProbability = hour.precipitationProbability?.total?.roundToInt()
+                precipProbability = hour.precipitationProbability?.total?.inPercent?.roundToInt()
             )
         }
     }

app/src/main/java/org/breezyweather/sources/openmeteo/OpenMeteoService.kt

@@ -96,6 +96,7 @@ import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgr
 import org.breezyweather.unit.precipitation.Precipitation.Companion.centimeters
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.HttpException
@@ -395,10 +396,10 @@ class OpenMeteoService @Inject constructor(
                 gusts = current.windGusts?.metersPerSecond
             ),
             uV = UV(index = current.uvIndex),
-            relativeHumidity = current.relativeHumidity?.toDouble(),
+            relativeHumidity = current.relativeHumidity?.percent,
             dewPoint = current.dewPoint?.celsius,
             pressure = current.pressureMsl?.hectopascals,
-            cloudCover = current.cloudCover,
+            cloudCover = current.cloudCover?.percent,
             visibility = current.visibility?.meters
         )
     }
@@ -435,9 +436,9 @@ class OpenMeteoService @Inject constructor(
                 uV = UV(index = dailyResult.uvIndexMax?.getOrNull(i)),
                 sunshineDuration = dailyResult.sunshineDuration?.getOrNull(i)?.seconds,
                 relativeHumidity = DailyRelativeHumidity(
-                    average = dailyResult.relativeHumidityMean?.getOrNull(i)?.toDouble(),
-                    max = dailyResult.relativeHumidityMax?.getOrNull(i)?.toDouble(),
-                    min = dailyResult.relativeHumidityMin?.getOrNull(i)?.toDouble()
+                    average = dailyResult.relativeHumidityMean?.getOrNull(i)?.percent,
+                    max = dailyResult.relativeHumidityMax?.getOrNull(i)?.percent,
+                    min = dailyResult.relativeHumidityMin?.getOrNull(i)?.percent
                 ),
                 dewPoint = DailyDewPoint(
                     average = dailyResult.dewPointMean?.getOrNull(i)?.celsius,
@@ -450,9 +451,9 @@ class OpenMeteoService @Inject constructor(
                     min = dailyResult.pressureMslMin?.getOrNull(i)?.hectopascals
                 ),
                 cloudCover = DailyCloudCover(
-                    average = dailyResult.cloudCoverMean?.getOrNull(i),
-                    max = dailyResult.cloudCoverMax?.getOrNull(i),
-                    min = dailyResult.cloudCoverMin?.getOrNull(i)
+                    average = dailyResult.cloudCoverMean?.getOrNull(i)?.percent,
+                    max = dailyResult.cloudCoverMax?.getOrNull(i)?.percent,
+                    min = dailyResult.cloudCoverMin?.getOrNull(i)?.percent
                 ),
                 visibility = DailyVisibility(
                     average = dailyResult.visibilityMean?.getOrNull(i)?.meters,
@@ -489,7 +490,7 @@ class OpenMeteoService @Inject constructor(
                         snow = hourlyResult.snowfall?.getOrNull(i)?.centimeters
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = hourlyResult.precipitationProbability?.getOrNull(i)?.toDouble()
+                        total = hourlyResult.precipitationProbability?.getOrNull(i)?.percent
                     ),
                     wind = Wind(
                         degree = hourlyResult.windDirection?.getOrNull(i)?.toDouble(),
@@ -497,10 +498,10 @@ class OpenMeteoService @Inject constructor(
                         gusts = hourlyResult.windGusts?.getOrNull(i)?.metersPerSecond
                     ),
                     uV = UV(index = hourlyResult.uvIndex?.getOrNull(i)),
-                    relativeHumidity = hourlyResult.relativeHumidity?.getOrNull(i)?.toDouble(),
+                    relativeHumidity = hourlyResult.relativeHumidity?.getOrNull(i)?.percent,
                     dewPoint = hourlyResult.dewPoint?.getOrNull(i)?.celsius,
                     pressure = hourlyResult.pressureMsl?.getOrNull(i)?.hectopascals,
-                    cloudCover = hourlyResult.cloudCover?.getOrNull(i),
+                    cloudCover = hourlyResult.cloudCover?.getOrNull(i)?.percent,
                     visibility = hourlyResult.visibility?.getOrNull(i)?.meters
                 )
             )

app/src/main/java/org/breezyweather/sources/pirateweather/PirateWeatherService.kt

@@ -63,6 +63,7 @@ import org.breezyweather.unit.distance.Distance.Companion.kilometers
 import org.breezyweather.unit.precipitation.Precipitation.Companion.centimeters
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.fraction
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -170,10 +171,10 @@ class PirateWeatherService @Inject constructor(
                 gusts = result.windGust?.metersPerSecond
             ),
             uV = UV(index = result.uvIndex),
-            relativeHumidity = result.humidity?.times(100),
+            relativeHumidity = result.humidity?.fraction,
             dewPoint = result.dewPoint?.celsius,
             pressure = result.pressure?.hectopascals,
-            cloudCover = result.cloudCover?.times(100)?.roundToInt(),
+            cloudCover = result.cloudCover?.fraction,
             visibility = result.visibility?.kilometers,
             dailyForecast = dailySummary,
             hourlyForecast = hourlySummary
@@ -205,10 +206,10 @@ class PirateWeatherService @Inject constructor(
                     )
                 ),
                 uV = UV(index = result.uvIndex),
-                relativeHumidity = DailyRelativeHumidity(average = result.humidity?.times(100)),
+                relativeHumidity = DailyRelativeHumidity(average = result.humidity?.fraction),
                 dewPoint = DailyDewPoint(average = result.dewPoint?.celsius),
                 pressure = DailyPressure(average = result.pressure?.hectopascals),
-                cloudCover = DailyCloudCover(average = result.cloudCover?.times(100)?.roundToInt()),
+                cloudCover = DailyCloudCover(average = result.cloudCover?.fraction),
                 visibility = DailyVisibility(average = result.visibility?.kilometers)
             )
         }
@@ -237,7 +238,7 @@ class PirateWeatherService @Inject constructor(
                     ice = result.iceAccumulation?.centimeters
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = result.precipProbability?.times(100)
+                    total = result.precipProbability?.fraction
                 ),
                 wind = Wind(
                     degree = result.windBearing,
@@ -247,10 +248,10 @@ class PirateWeatherService @Inject constructor(
                 uV = UV(
                     index = result.uvIndex
                 ),
-                relativeHumidity = result.humidity?.times(100),
+                relativeHumidity = result.humidity?.fraction,
                 dewPoint = result.dewPoint?.celsius,
                 pressure = result.pressure?.hectopascals,
-                cloudCover = result.cloudCover?.times(100)?.roundToInt(),
+                cloudCover = result.cloudCover?.fraction,
                 visibility = result.visibility?.kilometers
             )
         }

app/src/main/java/org/breezyweather/ui/details/components/DetailsAirQuality.kt

@@ -54,6 +54,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.StrokeCap
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalResources
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
@@ -441,6 +442,7 @@ private fun AirQualityChart(
     markerVisibilityListener: CartesianMarkerVisibilityListener,
 ) {
     val context = LocalContext.current
+    val resources = LocalResources.current
 
     val maxY = remember(mappedValues, selectedPollutant) {
         max(
@@ -475,38 +477,46 @@ private fun AirQualityChart(
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY.toDouble(),
-        { _, value, _ ->
-            if (selectedPollutant == null) {
-                UnitUtils.formatInt(context, value.roundToInt())
-            } else {
-                PollutantIndex.getUnit(selectedPollutant).formatMeasure(context, value)
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY.toDouble(),
+        endAxisValueFormatter = remember(selectedPollutant) {
+            { _, value, _ ->
+                if (selectedPollutant == null) {
+                    UnitUtils.formatInt(context, value.roundToInt())
+                } else {
+                    PollutantIndex.getUnit(selectedPollutant).formatMeasure(context, value)
+                }
             }
         },
-        persistentListOf(
-            ((selectedPollutant?.thresholds ?: PollutantIndex.aqiThresholds).reversed().map { it.toFloat() }).zip(
-                context.resources.getIntArray(PollutantIndex.colorsArrayId).reversed().map { Color(it) }
-            ).toMap().toImmutableMap()
-        ),
-        trendHorizontalLines = persistentMapOf(
-            (selectedPollutant?.let { it.thresholds[3] } ?: PollutantIndex.aqiThresholds[3]).toDouble() to
-                context.resources.getStringArray(R.array.air_quality_levels)[3]
-        ),
-        topAxisValueFormatter = { _, value, _ ->
-            mappedValues.getOrElse(value.toLong()) { null }
-                ?.let {
-                    UnitUtils.formatInt(
-                        context,
-                        if (selectedPollutant == null) {
-                            it.getIndex()!!
-                        } else {
-                            it.getConcentration(selectedPollutant)!!.roundToInt()
-                        }
-                    )
-                } ?: "-"
+        colors = remember(selectedPollutant) {
+            persistentListOf(
+                ((selectedPollutant?.thresholds ?: PollutantIndex.aqiThresholds).reversed().map { it.toFloat() }).zip(
+                    resources.getIntArray(PollutantIndex.colorsArrayId).reversed().map { Color(it) }
+                ).toMap().toImmutableMap()
+            )
+        },
+        trendHorizontalLines = remember(selectedPollutant) {
+            persistentMapOf(
+                (selectedPollutant?.let { it.thresholds[3] } ?: PollutantIndex.aqiThresholds[3]).toDouble() to
+                    resources.getStringArray(R.array.air_quality_levels)[3]
+            )
+        },
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                mappedValues.getOrElse(value.toLong()) { null }
+                    ?.let {
+                        UnitUtils.formatInt(
+                            context,
+                            if (selectedPollutant == null) {
+                                it.getIndex()!!
+                            } else {
+                                it.getConcentration(selectedPollutant)!!.roundToInt()
+                            }
+                        )
+                    } ?: "-"
+            }
         },
         endAxisItemPlacer = remember(selectedPollutant) {
             SpecificVerticalAxisItemPlacer(

app/src/main/java/org/breezyweather/ui/details/components/DetailsCloudCover.kt

@@ -50,7 +50,6 @@ import breezyweather.domain.weather.model.Daily
 import breezyweather.domain.weather.model.Hourly
 import com.patrykandpatrick.vico.core.cartesian.axis.VerticalAxis
 import com.patrykandpatrick.vico.core.cartesian.data.CartesianChartModelProducer
-import com.patrykandpatrick.vico.core.cartesian.data.CartesianValueFormatter
 import com.patrykandpatrick.vico.core.cartesian.data.lineSeries
 import com.patrykandpatrick.vico.core.cartesian.marker.CartesianMarker
 import com.patrykandpatrick.vico.core.cartesian.marker.CartesianMarkerVisibilityListener
@@ -60,14 +59,19 @@ import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.persistentMapOf
 import kotlinx.collections.immutable.toImmutableMap
 import org.breezyweather.R
-import org.breezyweather.common.extensions.cloudCoverScaleThresholds
+import org.breezyweather.common.extensions.CLOUD_COVER_BKN
+import org.breezyweather.common.extensions.CLOUD_COVER_FEW
+import org.breezyweather.common.extensions.CLOUD_COVER_OVC
+import org.breezyweather.common.extensions.CLOUD_COVER_SCT
+import org.breezyweather.common.extensions.CLOUD_COVER_SKC
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.formatTime
+import org.breezyweather.common.extensions.formatValue
 import org.breezyweather.common.extensions.getCloudCoverDescription
 import org.breezyweather.common.extensions.getFormattedTime
 import org.breezyweather.common.extensions.is12Hour
 import org.breezyweather.common.extensions.toDate
 import org.breezyweather.common.options.appearance.DetailScreen
-import org.breezyweather.common.utils.UnitUtils
 import org.breezyweather.domain.weather.model.getFullLabel
 import org.breezyweather.domain.weather.model.getRangeDescriptionSummary
 import org.breezyweather.domain.weather.model.getRangeSummary
@@ -75,8 +79,9 @@ import org.breezyweather.ui.common.charts.BreezyLineChart
 import org.breezyweather.ui.common.widgets.Material3ExpressiveCardListItem
 import org.breezyweather.ui.settings.preference.bottomInsetItem
 import org.breezyweather.unit.formatting.UnitWidth
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import java.util.Date
-import kotlin.math.roundToInt
 import kotlin.time.Duration
 import kotlin.time.DurationUnit
 
@@ -85,7 +90,7 @@ fun DetailsCloudCover(
     location: Location,
     hourlyList: ImmutableList<Hourly>,
     daily: Daily,
-    defaultValue: Pair<Date, Int>?,
+    defaultValue: Pair<Date, Ratio>?,
     modifier: Modifier = Modifier,
 ) {
     val mappedValues = remember(hourlyList) {
@@ -94,7 +99,7 @@ fun DetailsCloudCover(
             .associate { it.date.time to it.cloudCover!! }
             .toImmutableMap()
     }
-    var activeItem: Pair<Date, Int>? by remember { mutableStateOf(null) }
+    var activeItem: Pair<Date, Ratio>? by remember { mutableStateOf(null) }
     val markerVisibilityListener = remember {
         object : CartesianMarkerVisibilityListener {
             override fun onShown(marker: CartesianMarker, targets: List<CartesianMarker.Target>) {
@@ -181,8 +186,8 @@ fun DetailsCloudCover(
 private fun CloudCoverHeader(
     location: Location,
     daily: Daily,
-    activeItem: Pair<Date, Int>?,
-    defaultValue: Pair<Date, Int>?,
+    activeItem: Pair<Date, Ratio>?,
+    defaultValue: Pair<Date, Ratio>?,
 ) {
     val context = LocalContext.current
 
@@ -204,7 +209,7 @@ private fun CloudCoverHeader(
 @Composable
 private fun CloudCoverItem(
     header: String?,
-    cloudCover: Int?,
+    cloudCover: Ratio?,
     modifier: Modifier = Modifier,
 ) {
     val context = LocalContext.current
@@ -217,13 +222,11 @@ private fun CloudCoverItem(
             style = MaterialTheme.typography.labelMedium
         )
         TextFixedHeight(
-            text = cloudCover?.let {
-                UnitUtils.formatPercent(context, it.toDouble())
-            } ?: "",
+            text = cloudCover?.formatPercent(context) ?: "",
             style = MaterialTheme.typography.displaySmall
         )
         TextFixedHeight(
-            text = getCloudCoverDescription(context, cloudCover) ?: "",
+            text = cloudCover?.getCloudCoverDescription(context) ?: "",
             style = MaterialTheme.typography.labelMedium
         )
     }
@@ -257,7 +260,7 @@ private fun CloudCoverSummary(
 @Composable
 private fun CloudCoverChart(
     location: Location,
-    mappedValues: ImmutableMap<Long, Int>,
+    mappedValues: ImmutableMap<Long, Ratio>,
     daily: Daily,
     markerVisibilityListener: CartesianMarkerVisibilityListener,
 ) {
@@ -269,35 +272,31 @@ private fun CloudCoverChart(
             lineSeries {
                 series(
                     x = mappedValues.keys,
-                    y = mappedValues.values
+                    y = mappedValues.values.map { it.inPercent }
                 )
             }
         }
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
         maxY = 100.0,
-        endAxisValueFormatter = remember {
-            CartesianValueFormatter { _, value, _ ->
-                UnitUtils.formatPercent(context, value)
-            }
-        },
-        persistentListOf(
-            persistentMapOf(
-                100f to Color(213, 213, 205),
-                98f to Color(198, 201, 201),
-                95f to Color(171, 180, 179),
-                50f to Color(116, 116, 116),
-                10f to Color(132, 119, 70),
-                0f to Color(146, 130, 70)
+        endAxisValueFormatter = remember { { _, value, _ -> value.percent.formatPercent(context) } },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    100f to Color(213, 213, 205),
+                    98f to Color(198, 201, 201),
+                    95f to Color(171, 180, 179),
+                    50f to Color(116, 116, 116),
+                    10f to Color(132, 119, 70),
+                    0f to Color(146, 130, 70)
+                )
             )
-        ),
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ 20.0 }) // Every 20 %
         },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ 20.0 }) }, // Every 20 %
         markerVisibilityListener = markerVisibilityListener
     )
 }
@@ -333,6 +332,14 @@ fun CloudCoverScale(
     modifier: Modifier = Modifier,
 ) {
     val context = LocalContext.current
+    val cloudCoverScaleThresholds = listOf(
+        0.0.percent,
+        CLOUD_COVER_SKC.percent,
+        CLOUD_COVER_FEW.percent,
+        CLOUD_COVER_SCT.percent,
+        CLOUD_COVER_BKN.percent,
+        CLOUD_COVER_OVC.percent
+    )
 
     Material3ExpressiveCardListItem(
         modifier = modifier,
@@ -363,11 +370,9 @@ fun CloudCoverScale(
                 )
             }
             cloudCoverScaleThresholds.dropLast(1).forEachIndexed { index, startingValue ->
-                val startingValueFormatted = UnitUtils.formatNumber(context, startingValue, precision = 1)
+                val startingValueFormatted = startingValue.formatValue(context)
                 val endingValueFormatted = cloudCoverScaleThresholds.getOrElse(index + 1) { null }
-                    ?.let {
-                        " – ${UnitUtils.formatNumber(context, it, precision = 1)}"
-                    }
+                    ?.let { " – ${it.formatValue(context)}" }
                     ?: "+"
                 Row(
                     verticalAlignment = Alignment.CenterVertically,
@@ -377,7 +382,7 @@ fun CloudCoverScale(
                         .padding(top = dimensionResource(R.dimen.small_margin))
                 ) {
                     Text(
-                        text = getCloudCoverDescription(context, (startingValue + 0.1).roundToInt())!!,
+                        text = startingValue.getCloudCoverDescription(context)!!,
                         modifier = Modifier.weight(1.5f)
                     )
                     Text(

app/src/main/java/org/breezyweather/ui/details/components/DetailsConditions.kt

@@ -104,6 +104,7 @@ import org.breezyweather.ui.settings.preference.bottomInsetItem
 import org.breezyweather.ui.theme.resource.ResourceHelper
 import org.breezyweather.ui.theme.resource.ResourcesProviderFactory
 import org.breezyweather.unit.formatting.UnitWidth
+import org.breezyweather.unit.ratio.Ratio
 import org.breezyweather.unit.temperature.Temperature
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import org.breezyweather.unit.temperature.Temperature.Companion.deciCelsius
@@ -163,7 +164,7 @@ fun DetailsConditions(
             .associate { it.date.time to it.precipitationProbability!!.total!! }
             .toImmutableMap()
     }
-    var activeProbabilityItem: Pair<Date, Double>? by remember { mutableStateOf(null) }
+    var activeProbabilityItem: Pair<Date, Ratio>? by remember { mutableStateOf(null) }
     val probabilityMarkerVisibilityListener = remember {
         object : CartesianMarkerVisibilityListener {
             override fun onShown(marker: CartesianMarker, targets: List<CartesianMarker.Target>) {
@@ -801,67 +802,73 @@ private fun TemperatureChart(
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        { _, value, _ ->
-            value.toTemperature(temperatureUnit)
-                .formatMeasure(context, valueWidth = UnitWidth.NARROW, unitWidth = UnitWidth.NARROW)
-        },
-        persistentListOf(
-            persistentMapOf(
-                47.celsius.toDouble(temperatureUnit).toFloat() to Color(71, 14, 0),
-                30.celsius.toDouble(temperatureUnit).toFloat() to Color(232, 83, 25),
-                21.celsius.toDouble(temperatureUnit).toFloat() to Color(243, 183, 4),
-                10.celsius.toDouble(temperatureUnit).toFloat() to Color(128, 147, 24),
-                1.celsius.toDouble(temperatureUnit).toFloat() to Color(68, 125, 99),
-                0.celsius.toDouble(temperatureUnit).toFloat() to Color(93, 133, 198),
-                -4.celsius.toDouble(temperatureUnit).toFloat() to Color(100, 166, 189),
-                -8.celsius.toDouble(temperatureUnit).toFloat() to Color(106, 191, 181),
-                -15.celsius.toDouble(temperatureUnit).toFloat() to Color(157, 219, 217),
-                -25.celsius.toDouble(temperatureUnit).toFloat() to Color(143, 89, 169),
-                -40.celsius.toDouble(temperatureUnit).toFloat() to Color(162, 70, 145),
-                -55.celsius.toDouble(temperatureUnit).toFloat() to Color(202, 172, 195),
-                -70.celsius.toDouble(temperatureUnit).toFloat() to Color(115, 70, 105)
-            ),
-            persistentMapOf(
-                50f to Color(128, 128, 128, 160),
-                0f to Color(128, 128, 128, 160)
-            )
-        ),
-        topAxisValueFormatter = { _, value, _ ->
-            mappedValues.getOrElse(value.toLong()) { null }?.let { hourly ->
-                hourly.weatherCode?.let {
-                    val ss = SpannableString("abc")
-                    val d = ResourceHelper.getWeatherIcon(provider, it, hourly.isDaylight)
-                    d.setBounds(0, 0, 64, 64)
-                    val span = ImageSpan(d, ImageSpan.ALIGN_BASELINE)
-                    ss.setSpan(span, 0, 3, Spannable.SPAN_INCLUSIVE_EXCLUSIVE)
-                    ss
-                }
-            } ?: "-"
-        },
-        trendHorizontalLines = buildMap {
-            normals?.let {
-                it.daytimeTemperature?.let { normal ->
-                    put(
-                        normal.toDouble(temperatureUnit),
-                        context.getString(R.string.temperature_normal_short)
-                    )
-                }
-                it.nighttimeTemperature?.let { normal ->
-                    put(
-                        normal.toDouble(temperatureUnit),
-                        context.getString(R.string.temperature_normal_short)
-                    )
-                }
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember {
+            { _, value, _ ->
+                value.toTemperature(temperatureUnit)
+                    .formatMeasure(context, valueWidth = UnitWidth.NARROW, unitWidth = UnitWidth.NARROW)
             }
-        }.toImmutableMap(),
-        minY = minY,
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ step })
         },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    47.celsius.toDouble(temperatureUnit).toFloat() to Color(71, 14, 0),
+                    30.celsius.toDouble(temperatureUnit).toFloat() to Color(232, 83, 25),
+                    21.celsius.toDouble(temperatureUnit).toFloat() to Color(243, 183, 4),
+                    10.celsius.toDouble(temperatureUnit).toFloat() to Color(128, 147, 24),
+                    1.celsius.toDouble(temperatureUnit).toFloat() to Color(68, 125, 99),
+                    0.celsius.toDouble(temperatureUnit).toFloat() to Color(93, 133, 198),
+                    -4.celsius.toDouble(temperatureUnit).toFloat() to Color(100, 166, 189),
+                    -8.celsius.toDouble(temperatureUnit).toFloat() to Color(106, 191, 181),
+                    -15.celsius.toDouble(temperatureUnit).toFloat() to Color(157, 219, 217),
+                    -25.celsius.toDouble(temperatureUnit).toFloat() to Color(143, 89, 169),
+                    -40.celsius.toDouble(temperatureUnit).toFloat() to Color(162, 70, 145),
+                    -55.celsius.toDouble(temperatureUnit).toFloat() to Color(202, 172, 195),
+                    -70.celsius.toDouble(temperatureUnit).toFloat() to Color(115, 70, 105)
+                ),
+                persistentMapOf(
+                    50f to Color(128, 128, 128, 160),
+                    0f to Color(128, 128, 128, 160)
+                )
+            )
+        },
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                mappedValues.getOrElse(value.toLong()) { null }?.let { hourly ->
+                    hourly.weatherCode?.let {
+                        val ss = SpannableString("abc")
+                        val d = ResourceHelper.getWeatherIcon(provider, it, hourly.isDaylight)
+                        d.setBounds(0, 0, 64, 64)
+                        val span = ImageSpan(d, ImageSpan.ALIGN_BASELINE)
+                        ss.setSpan(span, 0, 3, Spannable.SPAN_INCLUSIVE_EXCLUSIVE)
+                        ss
+                    }
+                } ?: "-"
+            }
+        },
+        trendHorizontalLines = remember {
+            buildMap {
+                normals?.let {
+                    it.daytimeTemperature?.let { normal ->
+                        put(
+                            normal.toDouble(temperatureUnit),
+                            context.getString(R.string.temperature_normal_short)
+                        )
+                    }
+                    it.nighttimeTemperature?.let { normal ->
+                        put(
+                            normal.toDouble(temperatureUnit),
+                            context.getString(R.string.temperature_normal_short)
+                        )
+                    }
+                }
+            }.toImmutableMap()
+        },
+        minY = minY,
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ step }) },
         markerVisibilityListener = markerVisibilityListener
     )
 }

app/src/main/java/org/breezyweather/ui/details/components/DetailsHumidity.kt

@@ -43,7 +43,6 @@ import breezyweather.domain.weather.model.Daily
 import breezyweather.domain.weather.model.Hourly
 import com.patrykandpatrick.vico.core.cartesian.axis.VerticalAxis
 import com.patrykandpatrick.vico.core.cartesian.data.CartesianChartModelProducer
-import com.patrykandpatrick.vico.core.cartesian.data.CartesianValueFormatter
 import com.patrykandpatrick.vico.core.cartesian.data.lineSeries
 import com.patrykandpatrick.vico.core.cartesian.marker.CartesianMarker
 import com.patrykandpatrick.vico.core.cartesian.marker.CartesianMarkerVisibilityListener
@@ -54,13 +53,13 @@ import kotlinx.collections.immutable.persistentMapOf
 import kotlinx.collections.immutable.toImmutableMap
 import org.breezyweather.R
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getFormattedTime
 import org.breezyweather.common.extensions.is12Hour
 import org.breezyweather.common.extensions.roundDownToNearestMultiplier
 import org.breezyweather.common.extensions.roundUpToNearestMultiplier
 import org.breezyweather.common.extensions.toDate
 import org.breezyweather.common.options.appearance.DetailScreen
-import org.breezyweather.common.utils.UnitUtils
 import org.breezyweather.domain.settings.SettingsManager
 import org.breezyweather.domain.weather.model.getFullLabel
 import org.breezyweather.domain.weather.model.getRangeContentDescriptionSummary
@@ -68,6 +67,8 @@ import org.breezyweather.domain.weather.model.getRangeSummary
 import org.breezyweather.ui.common.charts.BreezyLineChart
 import org.breezyweather.ui.settings.preference.bottomInsetItem
 import org.breezyweather.unit.formatting.UnitWidth
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.temperature.Temperature
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import org.breezyweather.unit.temperature.toTemperature
@@ -78,7 +79,7 @@ fun DetailsHumidity(
     location: Location,
     hourlyList: ImmutableList<Hourly>,
     daily: Daily,
-    defaultHumidityValue: Pair<Date, Double>?,
+    defaultHumidityValue: Pair<Date, Ratio>?,
     defaultDewPointValue: Pair<Date, Temperature>?,
     modifier: Modifier = Modifier,
 ) {
@@ -89,7 +90,7 @@ fun DetailsHumidity(
             .associate { it.date.time to it.relativeHumidity!! }
             .toImmutableMap()
     }
-    var activeHumidityItem: Pair<Date, Double>? by remember { mutableStateOf(null) }
+    var activeHumidityItem: Pair<Date, Ratio>? by remember { mutableStateOf(null) }
     val humidityMarkerVisibilityListener = remember {
         object : CartesianMarkerVisibilityListener {
             override fun onShown(marker: CartesianMarker, targets: List<CartesianMarker.Target>) {
@@ -204,7 +205,10 @@ fun DetailsHumidity(
         }
         item {
             DetailsCardText(
-                stringResource(R.string.dew_point_about_description, UnitUtils.formatPercent(context, 100.0))
+                stringResource(
+                    R.string.dew_point_about_description,
+                    100.percent.formatPercent(context, UnitWidth.NARROW)
+                )
             )
         }
         bottomInsetItem()
@@ -215,8 +219,8 @@ fun DetailsHumidity(
 fun HumidityHeader(
     location: Location,
     daily: Daily,
-    activeItem: Pair<Date, Double>?,
-    defaultValue: Pair<Date, Double>?,
+    activeItem: Pair<Date, Ratio>?,
+    defaultValue: Pair<Date, Ratio>?,
 ) {
     val context = LocalContext.current
 
@@ -270,7 +274,7 @@ private fun HumiditySummary(
 @Composable
 private fun HumidityItem(
     header: @Composable () -> Unit,
-    relativeHumidity: Double?,
+    relativeHumidity: Ratio?,
     modifier: Modifier = Modifier,
 ) {
     val context = LocalContext.current
@@ -280,9 +284,7 @@ private fun HumidityItem(
     ) {
         header()
         TextFixedHeight(
-            text = relativeHumidity?.let {
-                UnitUtils.formatPercent(context, it)
-            } ?: "",
+            text = relativeHumidity?.formatPercent(context) ?: "",
             style = MaterialTheme.typography.displaySmall
         )
     }
@@ -291,7 +293,7 @@ private fun HumidityItem(
 @Composable
 private fun HumidityChart(
     location: Location,
-    mappedValues: ImmutableMap<Long, Double>,
+    mappedValues: ImmutableMap<Long, Ratio>,
     daily: Daily,
     markerVisibilityListener: CartesianMarkerVisibilityListener,
 ) {
@@ -299,10 +301,6 @@ private fun HumidityChart(
 
     val maxY = 100.0
 
-    val endAxisValueFormatter = CartesianValueFormatter { _, value, _ ->
-        UnitUtils.formatPercent(context, value)
-    }
-
     val modelProducer = remember { CartesianChartModelProducer() }
 
     LaunchedEffect(location) {
@@ -310,44 +308,44 @@ private fun HumidityChart(
             lineSeries {
                 series(
                     x = mappedValues.keys,
-                    y = mappedValues.values
+                    y = mappedValues.values.map { it.inPercent }
                 )
             }
         }
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        endAxisValueFormatter,
-        persistentListOf(
-            persistentMapOf(
-                100f to Color(56, 70, 114),
-                97f to Color(56, 98, 157),
-                93f to Color(56, 123, 173),
-                90f to Color(56, 132, 173),
-                87f to Color(56, 135, 173),
-                83f to Color(56, 148, 173),
-                80f to Color(56, 157, 173),
-                75f to Color(56, 160, 173),
-                70f to Color(56, 174, 173),
-                60f to Color(56, 173, 121),
-                50f to Color(105, 173, 56),
-                40f to Color(173, 146, 56),
-                30f to Color(173, 110, 56),
-                0f to Color(173, 85, 56)
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember { { _, value, _ -> value.percent.formatPercent(context) } },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    100f to Color(56, 70, 114),
+                    97f to Color(56, 98, 157),
+                    93f to Color(56, 123, 173),
+                    90f to Color(56, 132, 173),
+                    87f to Color(56, 135, 173),
+                    83f to Color(56, 148, 173),
+                    80f to Color(56, 157, 173),
+                    75f to Color(56, 160, 173),
+                    70f to Color(56, 174, 173),
+                    60f to Color(56, 173, 121),
+                    50f to Color(105, 173, 56),
+                    40f to Color(173, 146, 56),
+                    30f to Color(173, 110, 56),
+                    0f to Color(173, 85, 56)
+                )
             )
-        ),
-        topAxisValueFormatter = { _, value, _ ->
-            mappedValues.getOrElse(value.toLong()) { null }?.let {
-                UnitUtils.formatPercent(context, it)
-            } ?: "-"
         },
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ 20.0 }) // Every 20 %
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                mappedValues.getOrElse(value.toLong()) { null }?.formatPercent(context, UnitWidth.NARROW) ?: "-"
+            }
         },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ 20.0 }) }, // Every 20 %
         markerVisibilityListener = markerVisibilityListener
     )
 }
@@ -471,43 +469,47 @@ private fun DewPointChart(
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        { _, value, _ ->
-            value.toTemperature(temperatureUnit)
-                .formatMeasure(context, valueWidth = UnitWidth.NARROW, unitWidth = UnitWidth.NARROW)
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember {
+            { _, value, _ ->
+                value.toTemperature(temperatureUnit)
+                    .formatMeasure(context, valueWidth = UnitWidth.NARROW, unitWidth = UnitWidth.NARROW)
+            }
         },
-        persistentListOf(
-            persistentMapOf(
-                // TODO: Duplicate of temperature colors
-                47.celsius.toDouble(temperatureUnit).toFloat() to Color(71, 14, 0),
-                30.celsius.toDouble(temperatureUnit).toFloat() to Color(232, 83, 25),
-                21.celsius.toDouble(temperatureUnit).toFloat() to Color(243, 183, 4),
-                10.celsius.toDouble(temperatureUnit).toFloat() to Color(128, 147, 24),
-                1.celsius.toDouble(temperatureUnit).toFloat() to Color(68, 125, 99),
-                0.celsius.toDouble(temperatureUnit).toFloat() to Color(93, 133, 198),
-                -4.celsius.toDouble(temperatureUnit).toFloat() to Color(100, 166, 189),
-                -8.celsius.toDouble(temperatureUnit).toFloat() to Color(106, 191, 181),
-                -15.celsius.toDouble(temperatureUnit).toFloat() to Color(157, 219, 217),
-                -25.celsius.toDouble(temperatureUnit).toFloat() to Color(143, 89, 169),
-                -40.celsius.toDouble(temperatureUnit).toFloat() to Color(162, 70, 145),
-                -55.celsius.toDouble(temperatureUnit).toFloat() to Color(202, 172, 195),
-                -70.celsius.toDouble(temperatureUnit).toFloat() to Color(115, 70, 105)
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    // TODO: Duplicate of temperature colors
+                    47.celsius.toDouble(temperatureUnit).toFloat() to Color(71, 14, 0),
+                    30.celsius.toDouble(temperatureUnit).toFloat() to Color(232, 83, 25),
+                    21.celsius.toDouble(temperatureUnit).toFloat() to Color(243, 183, 4),
+                    10.celsius.toDouble(temperatureUnit).toFloat() to Color(128, 147, 24),
+                    1.celsius.toDouble(temperatureUnit).toFloat() to Color(68, 125, 99),
+                    0.celsius.toDouble(temperatureUnit).toFloat() to Color(93, 133, 198),
+                    -4.celsius.toDouble(temperatureUnit).toFloat() to Color(100, 166, 189),
+                    -8.celsius.toDouble(temperatureUnit).toFloat() to Color(106, 191, 181),
+                    -15.celsius.toDouble(temperatureUnit).toFloat() to Color(157, 219, 217),
+                    -25.celsius.toDouble(temperatureUnit).toFloat() to Color(143, 89, 169),
+                    -40.celsius.toDouble(temperatureUnit).toFloat() to Color(162, 70, 145),
+                    -55.celsius.toDouble(temperatureUnit).toFloat() to Color(202, 172, 195),
+                    -70.celsius.toDouble(temperatureUnit).toFloat() to Color(115, 70, 105)
+                )
             )
-        ),
-        topAxisValueFormatter = { _, value, _ ->
-            mappedValues.getOrElse(value.toLong()) { null }?.formatMeasure(
-                context,
-                valueWidth = UnitWidth.NARROW,
-                unitWidth = UnitWidth.NARROW
-            ) ?: "-"
+        },
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                mappedValues.getOrElse(value.toLong()) { null }?.formatMeasure(
+                    context,
+                    valueWidth = UnitWidth.NARROW,
+                    unitWidth = UnitWidth.NARROW
+                ) ?: "-"
+            }
         },
         minY = minY,
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ step })
-        },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ step }) },
         markerVisibilityListener = markerVisibilityListener
     )
 }

app/src/main/java/org/breezyweather/ui/details/components/DetailsPrecipitation.kt

@@ -53,7 +53,6 @@ import breezyweather.domain.weather.model.PrecipitationDuration
 import breezyweather.domain.weather.model.PrecipitationProbability
 import com.patrykandpatrick.vico.core.cartesian.axis.VerticalAxis
 import com.patrykandpatrick.vico.core.cartesian.data.CartesianChartModelProducer
-import com.patrykandpatrick.vico.core.cartesian.data.CartesianValueFormatter
 import com.patrykandpatrick.vico.core.cartesian.data.columnSeries
 import com.patrykandpatrick.vico.core.cartesian.data.lineSeries
 import com.patrykandpatrick.vico.core.cartesian.marker.CartesianMarker
@@ -66,6 +65,7 @@ import kotlinx.collections.immutable.persistentMapOf
 import kotlinx.collections.immutable.toImmutableMap
 import org.breezyweather.R
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.formatTime
 import org.breezyweather.common.extensions.getFormattedTime
 import org.breezyweather.common.extensions.is12Hour
@@ -81,6 +81,8 @@ import org.breezyweather.unit.formatting.UnitWidth
 import org.breezyweather.unit.precipitation.Precipitation
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.precipitation.toPrecipitation
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import java.util.Date
 import kotlin.math.max
 import kotlin.time.Duration
@@ -128,7 +130,7 @@ fun DetailsPrecipitation(
             .associate { it.date.time to it.precipitationProbability!!.total!! }
             .toImmutableMap()
     }
-    var activeProbabilityItem: Pair<Date, Double>? by remember { mutableStateOf(null) }
+    var activeProbabilityItem: Pair<Date, Ratio>? by remember { mutableStateOf(null) }
     val probabilityMarkerVisibilityListener = remember {
         object : CartesianMarkerVisibilityListener {
             override fun onShown(marker: CartesianMarker, targets: List<CartesianMarker.Target>) {
@@ -366,47 +368,51 @@ internal fun PrecipitationChart(
     }
 
     BreezyBarChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        { _, value, _ -> value.toPrecipitation(precipitationUnit).formatMeasure(context, precipitationUnit) },
-        Fill(Color(60, 116, 160).toArgb()),
-        /*persistentMapOf(
-            50 to Fill(Color(168, 168, 168).toArgb()),
-            31 to Fill(Color(161, 59, 161).toArgb()),
-            20 to Fill(Color(161, 59, 59).toArgb()),
-            15 to Fill(Color(161, 161, 59).toArgb()),
-            10 to Fill(Color(130, 161, 59).toArgb()),
-            8 to Fill(Color(59, 161, 61).toArgb()),
-            6 to Fill(Color(59, 161, 161).toArgb()),
-            0.6 to Fill(Color(60, 116, 160).toArgb()),
-            0.0 to Fill(Color(111, 111, 111).toArgb())
-        )*/
-        trendHorizontalLines = buildMap {
-            put(
-                breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_HEAVY
-                    .millimeters.toDouble(precipitationUnit),
-                context.getString(R.string.precipitation_intensity_heavy)
-            )
-            if (maxY < breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_HEAVY.times(2.0)
-                    .millimeters.toDouble(precipitationUnit)
-            ) {
-                put(
-                    breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_MEDIUM
-                        .millimeters.toDouble(precipitationUnit),
-                    context.getString(R.string.precipitation_intensity_medium)
-                )
-                put(
-                    breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_LIGHT
-                        .millimeters.toDouble(precipitationUnit),
-                    context.getString(R.string.precipitation_intensity_light)
-                )
-            }
-        }.toImmutableMap(),
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ step })
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember {
+            { _, value, _ -> value.toPrecipitation(precipitationUnit).formatMeasure(context, precipitationUnit) }
         },
+        barColorFill = remember { Fill(Color(60, 116, 160).toArgb()) },
+        /*colors = remember {
+            persistentMapOf(
+                50 to Fill(Color(168, 168, 168).toArgb()),
+                31 to Fill(Color(161, 59, 161).toArgb()),
+                20 to Fill(Color(161, 59, 59).toArgb()),
+                15 to Fill(Color(161, 161, 59).toArgb()),
+                10 to Fill(Color(130, 161, 59).toArgb()),
+                8 to Fill(Color(59, 161, 61).toArgb()),
+                6 to Fill(Color(59, 161, 161).toArgb()),
+                0.6 to Fill(Color(60, 116, 160).toArgb()),
+                0.0 to Fill(Color(111, 111, 111).toArgb())
+            )
+        }*/
+        trendHorizontalLines = remember {
+            buildMap {
+                put(
+                    breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_HEAVY
+                        .millimeters.toDouble(precipitationUnit),
+                    context.getString(R.string.precipitation_intensity_heavy)
+                )
+                if (maxY < breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_HEAVY.times(2.0)
+                        .millimeters.toDouble(precipitationUnit)
+                ) {
+                    put(
+                        breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_MEDIUM
+                            .millimeters.toDouble(precipitationUnit),
+                        context.getString(R.string.precipitation_intensity_medium)
+                    )
+                    put(
+                        breezyweather.domain.weather.model.Precipitation.PRECIPITATION_HOURLY_LIGHT
+                            .millimeters.toDouble(precipitationUnit),
+                        context.getString(R.string.precipitation_intensity_light)
+                    )
+                }
+            }.toImmutableMap()
+        },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ step }) },
         markerVisibilityListener = markerVisibilityListener
     )
 }
@@ -503,7 +509,7 @@ fun DailyPrecipitationDetail(
 fun PrecipitationProbabilityHeader(
     location: Location,
     daily: Daily,
-    activeItem: Pair<Date, Double>?,
+    activeItem: Pair<Date, Ratio>?,
 ) {
     val context = LocalContext.current
 
@@ -523,7 +529,7 @@ fun PrecipitationProbabilityHeader(
 @Composable
 private fun PrecipitationProbabilityItem(
     header: @Composable () -> Unit,
-    precipitationProbability: Double?,
+    precipitationProbability: Ratio?,
     modifier: Modifier = Modifier,
 ) {
     val context = LocalContext.current
@@ -536,11 +542,11 @@ private fun PrecipitationProbabilityItem(
         } else {
             TextFixedHeight(
                 text = "",
-                style = MaterialTheme.typography.displaySmall
+                style = MaterialTheme.typography.labelMedium
             )
         }
         TextFixedHeight(
-            text = precipitationProbability?.let { pp -> UnitUtils.formatPercent(context, pp) } ?: "",
+            text = precipitationProbability?.formatPercent(context) ?: "",
             style = MaterialTheme.typography.displaySmall
         )
     }
@@ -584,7 +590,7 @@ private fun PrecipitationProbabilitySummary(
 @Composable
 internal fun PrecipitationProbabilityChart(
     location: Location,
-    mappedValues: ImmutableMap<Long, Double>,
+    mappedValues: ImmutableMap<Long, Ratio>,
     daily: Daily,
     markerVisibilityListener: CartesianMarkerVisibilityListener,
 ) {
@@ -592,10 +598,6 @@ internal fun PrecipitationProbabilityChart(
 
     val maxY = 100.0
 
-    val endAxisValueFormatter = CartesianValueFormatter { _, value, _ ->
-        UnitUtils.formatPercent(context, value)
-    }
-
     val modelProducer = remember { CartesianChartModelProducer() }
 
     LaunchedEffect(location) {
@@ -603,28 +605,28 @@ internal fun PrecipitationProbabilityChart(
             lineSeries {
                 series(
                     x = mappedValues.keys,
-                    y = mappedValues.values
+                    y = mappedValues.values.map { it.inPercent }
                 )
             }
         }
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        endAxisValueFormatter,
-        persistentListOf(
-            persistentMapOf(
-                // TODO
-                100f to Color(60, 116, 160),
-                0f to Color(60, 116, 160)
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember { { _, value, _ -> value.percent.formatPercent(context) } },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    // TODO
+                    100f to Color(60, 116, 160),
+                    0f to Color(60, 116, 160)
+                )
             )
-        ),
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ 20.0 }) // Every 20 %
         },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ 20.0 }) }, // Every 20 %
         markerVisibilityListener = markerVisibilityListener
     )
 }
@@ -634,22 +636,22 @@ internal fun PrecipitationProbabilityDetails(
     daytimePrecProb: PrecipitationProbability?,
     nighttimePrecProb: PrecipitationProbability?,
 ) {
-    val daytimePrecProbItems = mutableListOf<Pair<Int, Double?>>()
-    val nighttimePrecProbItems = mutableListOf<Pair<Int, Double?>>()
+    val daytimePrecProbItems = mutableListOf<Pair<Int, Ratio?>>()
+    val nighttimePrecProbItems = mutableListOf<Pair<Int, Ratio?>>()
 
-    if ((daytimePrecProb?.rain ?: 0.0) > 0 || (nighttimePrecProb?.rain ?: 0.0) > 0) {
+    if ((daytimePrecProb?.rain?.value ?: 0) > 0 || (nighttimePrecProb?.rain?.value ?: 0) > 0) {
         daytimePrecProbItems.add(Pair(R.string.precipitation_rain, daytimePrecProb?.rain))
         nighttimePrecProbItems.add(Pair(R.string.precipitation_rain, nighttimePrecProb?.rain))
     }
-    if ((daytimePrecProb?.snow ?: 0.0) > 0 || (nighttimePrecProb?.snow ?: 0.0) > 0) {
+    if ((daytimePrecProb?.snow?.value ?: 0) > 0 || (nighttimePrecProb?.snow?.value ?: 0) > 0) {
         daytimePrecProbItems.add(Pair(R.string.precipitation_snow, daytimePrecProb?.snow))
         nighttimePrecProbItems.add(Pair(R.string.precipitation_snow, nighttimePrecProb?.snow))
     }
-    if ((daytimePrecProb?.ice ?: 0.0) > 0 || (nighttimePrecProb?.ice ?: 0.0) > 0) {
+    if ((daytimePrecProb?.ice?.value ?: 0) > 0 || (nighttimePrecProb?.ice?.value ?: 0) > 0) {
         daytimePrecProbItems.add(Pair(R.string.precipitation_ice, daytimePrecProb?.ice))
         nighttimePrecProbItems.add(Pair(R.string.precipitation_ice, nighttimePrecProb?.ice))
     }
-    if ((daytimePrecProb?.thunderstorm ?: 0.0) > 0 || (nighttimePrecProb?.thunderstorm ?: 0.0) > 0) {
+    if ((daytimePrecProb?.thunderstorm?.value ?: 0) > 0 || (nighttimePrecProb?.thunderstorm?.value ?: 0) > 0) {
         daytimePrecProbItems.add(Pair(R.string.precipitation_thunderstorm, daytimePrecProb?.thunderstorm))
         nighttimePrecProbItems.add(Pair(R.string.precipitation_thunderstorm, nighttimePrecProb?.thunderstorm))
     }
@@ -689,15 +691,14 @@ internal fun PrecipitationProbabilityDetails(
 
 @Composable
 internal fun DailyPrecipitationProbabilityDetail(
-    item: Pair<Int, Double?>,
+    item: Pair<Int, Ratio?>,
     modifier: Modifier = Modifier,
 ) {
     val context = LocalContext.current
 
     DetailsItem(
         headlineText = stringResource(item.first),
-        supportingText = item.second?.let { pp -> UnitUtils.formatPercent(context, pp) }
-            ?: stringResource(R.string.null_data_text),
+        supportingText = item.second?.formatPercent(context) ?: stringResource(R.string.null_data_text),
         modifier = modifier
             .padding(top = dimensionResource(R.dimen.normal_margin))
             .semantics(mergeDescendants = true) {}
@@ -705,7 +706,7 @@ internal fun DailyPrecipitationProbabilityDetail(
                 item.second?.let { pp ->
                     contentDescription = context.getString(item.first) +
                         context.getString(R.string.colon_separator) +
-                        UnitUtils.formatPercent(context, pp)
+                        pp.formatPercent(context)
                 }
             }
     )

app/src/main/java/org/breezyweather/ui/details/components/DetailsPressure.kt

@@ -247,60 +247,65 @@ private fun PressureChart(
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        { _, value, _ -> value.toPressure(pressureUnit).formatMeasure(context) },
-        persistentListOf(
-            persistentMapOf(
-                1080.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(48, 8, 24),
-                1046.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(111, 24, 64),
-                1038.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(142, 47, 57),
-                1030.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(159, 81, 44),
-                1024.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(163, 116, 67),
-                1019.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(167, 147, 107),
-                1015.25.hectopascals.toDouble(pressureUnit).toFloat() to Color(176, 174, 152),
-                1013.25.hectopascals.toDouble(pressureUnit).toFloat() to Color(182, 182, 182),
-                1011.25.hectopascals.toDouble(pressureUnit).toFloat() to Color(155, 183, 172),
-                1007.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(103, 162, 155),
-                1002.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(26, 140, 147),
-                995.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 117, 146),
-                986.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 90, 148),
-                976.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 52, 146),
-                950.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 32, 96),
-                900.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(8, 16, 48)
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember { { _, value, _ -> value.toPressure(pressureUnit).formatMeasure(context) } },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    1080.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(48, 8, 24),
+                    1046.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(111, 24, 64),
+                    1038.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(142, 47, 57),
+                    1030.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(159, 81, 44),
+                    1024.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(163, 116, 67),
+                    1019.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(167, 147, 107),
+                    1015.25.hectopascals.toDouble(pressureUnit).toFloat() to Color(176, 174, 152),
+                    1013.25.hectopascals.toDouble(pressureUnit).toFloat() to Color(182, 182, 182),
+                    1011.25.hectopascals.toDouble(pressureUnit).toFloat() to Color(155, 183, 172),
+                    1007.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(103, 162, 155),
+                    1002.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(26, 140, 147),
+                    995.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 117, 146),
+                    986.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 90, 148),
+                    976.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 52, 146),
+                    950.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(0, 32, 96),
+                    900.0.hectopascals.toDouble(pressureUnit).toFloat() to Color(8, 16, 48)
+                )
             )
-        ),
-        trendHorizontalLines = persistentMapOf(
-            PressureUnit.NORMAL.pascals.toDouble(pressureUnit) to stringResource(R.string.temperature_normal_short)
-        ),
+        },
+        trendHorizontalLines = remember {
+            persistentMapOf(
+                PressureUnit.NORMAL.pascals.toDouble(pressureUnit) to
+                    context.getString(R.string.temperature_normal_short)
+            )
+        },
         minY = minY,
-        topAxisValueFormatter = { _, value, _ ->
-            val currentIndex = mappedValues.keys.indexOfFirst { it == value.toLong() }.let {
-                if (it == 0) 1 else it
-            }
-            val previousValue = if (currentIndex > 0) {
-                mappedValues.values.elementAt(currentIndex - 1)
-            } else {
-                return@BreezyLineChart "-"
-            }
-            val currentValue = mappedValues.values.elementAt(currentIndex)
-            val trend = with(currentValue.value - previousValue.value) {
-                when {
-                    // Take into account the trend if the difference is of at least 0.5
-                    this >= 0.5 -> "↑"
-                    this <= -0.5 -> "↓"
-                    else -> "="
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                val currentIndex = mappedValues.keys.indexOfFirst { it == value.toLong() }.let {
+                    if (it == 0) 1 else it
+                }
+                if (currentIndex > 0) {
+                    val previousValue = mappedValues.values.elementAt(currentIndex - 1)
+                    val currentValue = mappedValues.values.elementAt(currentIndex)
+                    val trend = with(currentValue.value - previousValue.value) {
+                        when {
+                            // Take into account the trend if the difference is of at least 0.5
+                            this >= 0.5 -> "↑"
+                            this <= -0.5 -> "↓"
+                            else -> "="
+                        }
+                    }
+                    SpannableString(trend).apply {
+                        setSpan(RelativeSizeSpan(2f), 0, trend.length, 0)
+                    }
+                } else {
+                    "-"
                 }
             }
-            SpannableString(trend).apply {
-                setSpan(RelativeSizeSpan(2f), 0, trend.length, 0)
-            }
-        },
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ chartStep })
         },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ chartStep }) },
         markerVisibilityListener = markerVisibilityListener
     )
 }

app/src/main/java/org/breezyweather/ui/details/components/DetailsUV.kt

@@ -40,7 +40,6 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.colorResource
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
@@ -64,6 +63,7 @@ import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.persistentMapOf
 import kotlinx.collections.immutable.toImmutableMap
 import org.breezyweather.R
+import org.breezyweather.common.extensions.getColorResource
 import org.breezyweather.common.extensions.getFormattedTime
 import org.breezyweather.common.extensions.is12Hour
 import org.breezyweather.common.extensions.toDate
@@ -267,33 +267,37 @@ private fun UVChart(
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        { _, value, _ -> UnitUtils.formatInt(context, value.roundToInt()) },
-        persistentListOf(
-            persistentMapOf(
-                19f to Color(255, 255, 255),
-                11f to colorResource(R.color.colorLevel_5),
-                10f to colorResource(R.color.colorLevel_4),
-                7f to colorResource(R.color.colorLevel_3),
-                5f to colorResource(R.color.colorLevel_2),
-                2f to colorResource(R.color.colorLevel_1),
-                0f to Color(110, 110, 110)
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember { { _, value, _ -> UnitUtils.formatInt(context, value.roundToInt()) } },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    19f to Color(255, 255, 255),
+                    11f to context.getColorResource(R.color.colorLevel_5),
+                    10f to context.getColorResource(R.color.colorLevel_4),
+                    7f to context.getColorResource(R.color.colorLevel_3),
+                    5f to context.getColorResource(R.color.colorLevel_2),
+                    2f to context.getColorResource(R.color.colorLevel_1),
+                    0f to Color(110, 110, 110)
+                )
             )
-        ),
-        topAxisValueFormatter = { _, value, _ ->
-            mappedValues.getOrElse(value.toLong()) { null }?.index?.roundToInt()
-                ?.let { UnitUtils.formatInt(context, it) }
-                ?: "-"
         },
-        trendHorizontalLines = persistentMapOf(
-            UV.UV_INDEX_MIDDLE to context.getString(R.string.uv_alert_level)
-        ),
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ 1.0 }) // Every rounded UVI
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                mappedValues.getOrElse(value.toLong()) { null }?.index?.roundToInt()
+                    ?.let { UnitUtils.formatInt(context, it) }
+                    ?: "-"
+            }
         },
+        trendHorizontalLines = remember {
+            persistentMapOf(
+                UV.UV_INDEX_MIDDLE to context.getString(R.string.uv_alert_level)
+            )
+        },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ 1.0 }) }, // Every rounded UVI
         markerVisibilityListener = markerVisibilityListener
     )
 }

app/src/main/java/org/breezyweather/ui/details/components/DetailsVisibility.kt

@@ -312,30 +312,32 @@ private fun VisibilityChart(
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxYRounded,
-        { _, value, _ -> value.toDistance(distanceUnit).formatMeasure(context) },
-        persistentListOf(
-            persistentMapOf(
-                20000.meters.toDouble(distanceUnit).toFloat() to Color(119, 141, 120),
-                15000.meters.toDouble(distanceUnit).toFloat() to Color(91, 167, 99),
-                9000.meters.toDouble(distanceUnit).toFloat() to Color(90, 169, 90),
-                8000.meters.toDouble(distanceUnit).toFloat() to Color(98, 122, 160),
-                6000.meters.toDouble(distanceUnit).toFloat() to Color(98, 122, 160),
-                5000.meters.toDouble(distanceUnit).toFloat() to Color(167, 91, 91),
-                2200.meters.toDouble(distanceUnit).toFloat() to Color(167, 91, 91),
-                1600.meters.toDouble(distanceUnit).toFloat() to Color(162, 97, 160),
-                0.meters.toDouble(distanceUnit).toFloat() to Color(166, 93, 165)
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxYRounded,
+        endAxisValueFormatter = remember { { _, value, _ -> value.toDistance(distanceUnit).formatMeasure(context) } },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    20000.meters.toDouble(distanceUnit).toFloat() to Color(119, 141, 120),
+                    15000.meters.toDouble(distanceUnit).toFloat() to Color(91, 167, 99),
+                    9000.meters.toDouble(distanceUnit).toFloat() to Color(90, 169, 90),
+                    8000.meters.toDouble(distanceUnit).toFloat() to Color(98, 122, 160),
+                    6000.meters.toDouble(distanceUnit).toFloat() to Color(98, 122, 160),
+                    5000.meters.toDouble(distanceUnit).toFloat() to Color(167, 91, 91),
+                    2200.meters.toDouble(distanceUnit).toFloat() to Color(167, 91, 91),
+                    1600.meters.toDouble(distanceUnit).toFloat() to Color(162, 97, 160),
+                    0.meters.toDouble(distanceUnit).toFloat() to Color(166, 93, 165)
+                )
             )
-        ),
-        topAxisValueFormatter = { _, value, _ ->
-            mappedValues.getOrElse(value.toLong()) { null }?.formatValue(context) ?: "-"
         },
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ step })
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                mappedValues.getOrElse(value.toLong()) { null }?.formatValue(context) ?: "-"
+            }
         },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ step }) },
         markerVisibilityListener = markerVisibilityListener
     )
 }

app/src/main/java/org/breezyweather/ui/details/components/DetailsWind.kt

@@ -42,7 +42,6 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.colorResource
 import androidx.compose.ui.res.dimensionResource
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
@@ -73,6 +72,7 @@ import org.breezyweather.common.extensions.currentLocale
 import org.breezyweather.common.extensions.formatMeasure
 import org.breezyweather.common.extensions.getBeaufortScaleColor
 import org.breezyweather.common.extensions.getBeaufortScaleStrength
+import org.breezyweather.common.extensions.getColorResource
 import org.breezyweather.common.extensions.getFormattedTime
 import org.breezyweather.common.extensions.is12Hour
 import org.breezyweather.common.extensions.roundUpToNearestMultiplier
@@ -354,88 +354,105 @@ private fun WindChart(
     }
 
     BreezyLineChart(
-        location,
-        modelProducer,
-        daily.date,
-        maxY,
-        { _, value, _ -> value.toSpeed(speedUnit).formatMeasure(context) },
-        persistentListOf(
-            persistentMapOf(
-                104.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(128, 128, 128),
-                77.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(205, 202, 112),
-                51.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(219, 212, 135),
-                46.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(231, 215, 215),
-                36.0.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf12),
-                30.5.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf11),
-                26.4.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf10),
-                24.475.metersPerSecond.toDouble(speedUnit).toFloat() to Color(109, 97, 163),
-                22.55.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf9),
-                18.9.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf8),
-                17.175.metersPerSecond.toDouble(speedUnit).toFloat() to Color(129, 58, 78),
-                15.45.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf7),
-                13.85.metersPerSecond.toDouble(speedUnit).toFloat() to Color(159, 127, 58),
-                12.25.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf6),
-                9.3.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf5),
-                6.7.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf4),
-                4.4.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf3),
-                2.4.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf2),
-                1.0.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf1),
-                0.0.metersPerSecond.toDouble(speedUnit).toFloat() to colorResource(R.color.windStrength_bf0)
-            ),
-            persistentMapOf(
-                104.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(128, 128, 128, 160),
-                77.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(205, 202, 112, 160),
-                51.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(219, 212, 135, 160),
-                46.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(231, 215, 215, 160),
-                36.0.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf12).copy(alpha = 160f.div(255f)),
-                30.5.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf11).copy(alpha = 160f.div(255f)),
-                26.4.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf10).copy(alpha = 160f.div(255f)),
-                24.475.metersPerSecond.toDouble(speedUnit).toFloat() to Color(109, 97, 163, 160),
-                22.55.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf9).copy(alpha = 160f.div(255f)),
-                18.9.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf8).copy(alpha = 160f.div(255f)),
-                17.175.metersPerSecond.toDouble(speedUnit).toFloat() to Color(129, 58, 78, 160),
-                15.45.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf7).copy(alpha = 160f.div(255f)),
-                13.85.metersPerSecond.toDouble(speedUnit).toFloat() to Color(159, 127, 58, 160),
-                12.25.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf6).copy(alpha = 160f.div(255f)),
-                9.3.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf5).copy(alpha = 160f.div(255f)),
-                6.7.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf4).copy(alpha = 160f.div(255f)),
-                4.4.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf3).copy(alpha = 160f.div(255f)),
-                2.4.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf2).copy(alpha = 160f.div(255f)),
-                1.0.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf1).copy(alpha = 160f.div(255f)),
-                0.0.metersPerSecond.toDouble(speedUnit).toFloat() to
-                    colorResource(R.color.windStrength_bf0).copy(alpha = 160f.div(255f))
+        location = location,
+        modelProducer = modelProducer,
+        theDay = daily.date,
+        maxY = maxY,
+        endAxisValueFormatter = remember { { _, value, _ -> value.toSpeed(speedUnit).formatMeasure(context) } },
+        colors = remember {
+            persistentListOf(
+                persistentMapOf(
+                    104.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(128, 128, 128),
+                    77.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(205, 202, 112),
+                    51.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(219, 212, 135),
+                    46.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(231, 215, 215),
+                    36.0.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf12),
+                    30.5.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf11),
+                    26.4.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf10),
+                    24.475.metersPerSecond.toDouble(speedUnit).toFloat() to Color(109, 97, 163),
+                    22.55.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf9),
+                    18.9.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf8),
+                    17.175.metersPerSecond.toDouble(speedUnit).toFloat() to Color(129, 58, 78),
+                    15.45.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf7),
+                    13.85.metersPerSecond.toDouble(speedUnit).toFloat() to Color(159, 127, 58),
+                    12.25.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf6),
+                    9.3.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf5),
+                    6.7.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf4),
+                    4.4.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf3),
+                    2.4.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf2),
+                    1.0.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf1),
+                    0.0.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf0)
+                ),
+                persistentMapOf(
+                    104.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(128, 128, 128, 160),
+                    77.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(205, 202, 112, 160),
+                    51.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(219, 212, 135, 160),
+                    46.0.metersPerSecond.toDouble(speedUnit).toFloat() to Color(231, 215, 215, 160),
+                    36.0.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf12).copy(alpha = 160f.div(255f)),
+                    30.5.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf11).copy(alpha = 160f.div(255f)),
+                    26.4.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf10).copy(alpha = 160f.div(255f)),
+                    24.475.metersPerSecond.toDouble(speedUnit).toFloat() to Color(109, 97, 163, 160),
+                    22.55.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf9).copy(alpha = 160f.div(255f)),
+                    18.9.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf8).copy(alpha = 160f.div(255f)),
+                    17.175.metersPerSecond.toDouble(speedUnit).toFloat() to Color(129, 58, 78, 160),
+                    15.45.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf7).copy(alpha = 160f.div(255f)),
+                    13.85.metersPerSecond.toDouble(speedUnit).toFloat() to Color(159, 127, 58, 160),
+                    12.25.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf6).copy(alpha = 160f.div(255f)),
+                    9.3.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf5).copy(alpha = 160f.div(255f)),
+                    6.7.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf4).copy(alpha = 160f.div(255f)),
+                    4.4.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf3).copy(alpha = 160f.div(255f)),
+                    2.4.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf2).copy(alpha = 160f.div(255f)),
+                    1.0.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf1).copy(alpha = 160f.div(255f)),
+                    0.0.metersPerSecond.toDouble(speedUnit).toFloat() to
+                        context.getColorResource(R.color.windStrength_bf0).copy(alpha = 160f.div(255f))
+                )
             )
-        ),
-        topAxisValueFormatter = { _, value, _ ->
-            val arrow = mappedValues.getOrElse(value.toLong()) { null }?.arrow ?: "-"
-            SpannableString(arrow).apply {
-                setSpan(RelativeSizeSpan(2f), 0, arrow.length, 0)
+        },
+        topAxisValueFormatter = remember(mappedValues) {
+            { _, value, _ ->
+                val arrow = mappedValues.getOrElse(value.toLong()) { null }?.arrow ?: "-"
+                SpannableString(arrow).apply {
+                    setSpan(RelativeSizeSpan(2f), 0, arrow.length, 0)
+                }
             }
         },
-        trendHorizontalLines = buildMap {
-            if (maxY > 7.beaufort.toDouble(speedUnit)) {
-                put(7.beaufort.toDouble(speedUnit), 7.beaufort.getBeaufortScaleStrength(context)!!)
-            }
-            // TODO: Make this a const:
-            if (maxY < (7.beaufort.inMetersPerSecond + 5.0).metersPerSecond.toDouble(speedUnit)) {
-                put(3.beaufort.toDouble(speedUnit), 3.beaufort.getBeaufortScaleStrength(context)!!)
-            }
-        }.toImmutableMap(),
-        endAxisItemPlacer = remember {
-            VerticalAxis.ItemPlacer.step({ step })
+        trendHorizontalLines = remember {
+            buildMap {
+                if (maxY > 7.beaufort.toDouble(speedUnit)) {
+                    put(7.beaufort.toDouble(speedUnit), 7.beaufort.getBeaufortScaleStrength(context)!!)
+                }
+                // TODO: Make this a const:
+                if (maxY < (7.beaufort.inMetersPerSecond + 5.0).metersPerSecond.toDouble(speedUnit)) {
+                    put(3.beaufort.toDouble(speedUnit), 3.beaufort.getBeaufortScaleStrength(context)!!)
+                }
+            }.toImmutableMap()
         },
+        endAxisItemPlacer = remember { VerticalAxis.ItemPlacer.step({ step }) },
         markerVisibilityListener = markerVisibilityListener
     )
 }

app/src/main/java/org/breezyweather/ui/main/adapters/main/holder/HumidityViewHolder.kt

@@ -25,8 +25,8 @@ import breezyweather.domain.location.model.Location
 import org.breezyweather.R
 import org.breezyweather.common.activities.BreezyActivity
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.options.appearance.DetailScreen
-import org.breezyweather.common.utils.UnitUtils
 import org.breezyweather.common.utils.helpers.IntentHelper
 import org.breezyweather.ui.theme.resource.providers.ResourceProvider
 import org.breezyweather.unit.formatting.UnitWidth
@@ -50,13 +50,13 @@ class HumidityViewHolder(parent: ViewGroup) : AbstractMainCardViewHolder(
         val talkBackBuilder = StringBuilder(context.getString(R.string.humidity))
         location.weather!!.current?.let { current ->
             current.relativeHumidity?.let { relativeHumidity ->
-                humidityValueView.text = UnitUtils.formatPercent(context, relativeHumidity)
+                humidityValueView.text = relativeHumidity.formatPercent(context, UnitWidth.NARROW)
 
-                if (relativeHumidity in 0.0..100.0) {
+                if (relativeHumidity.inPercent in 0.0..100.0) {
                     wavesBackgroundView.setImageDrawable(
                         AppCompatResources.getDrawable(
                             context,
-                            when (relativeHumidity) {
+                            when (relativeHumidity.inPercent) {
                                 in 0.0..20.0 -> R.drawable.humidity_percent_7
                                 in 20.0..40.0 -> R.drawable.humidity_percent_30
                                 in 60.0..80.0 -> R.drawable.humidity_percent_75

app/src/main/java/org/breezyweather/ui/main/adapters/trend/daily/DailyPrecipitationAdapter.kt

@@ -158,7 +158,7 @@ class DailyPrecipitationAdapter(
             val keyLineList = mutableListOf<TrendRecyclerView.KeyLine>()
             keyLineList.add(
                 TrendRecyclerView.KeyLine(
-                    Precipitation.PRECIPITATION_HALF_DAY_LIGHT.toFloat(),
+                    Precipitation.PRECIPITATION_HALF_DAY_LIGHT.millimeters.inMicrometers.toFloat(),
                     Precipitation.PRECIPITATION_HALF_DAY_LIGHT.millimeters.formatValue(activity),
                     activity.getString(R.string.precipitation_intensity_light),
                     TrendRecyclerView.KeyLine.ContentPosition.ABOVE_LINE
@@ -166,7 +166,7 @@ class DailyPrecipitationAdapter(
             )
             keyLineList.add(
                 TrendRecyclerView.KeyLine(
-                    Precipitation.PRECIPITATION_HALF_DAY_HEAVY.toFloat(),
+                    Precipitation.PRECIPITATION_HALF_DAY_HEAVY.millimeters.inMicrometers.toFloat(),
                     Precipitation.PRECIPITATION_HALF_DAY_HEAVY.millimeters.formatValue(activity),
                     activity.getString(R.string.precipitation_intensity_heavy),
                     TrendRecyclerView.KeyLine.ContentPosition.ABOVE_LINE
@@ -174,7 +174,7 @@ class DailyPrecipitationAdapter(
             )
             keyLineList.add(
                 TrendRecyclerView.KeyLine(
-                    -Precipitation.PRECIPITATION_HALF_DAY_LIGHT.toFloat(),
+                    -Precipitation.PRECIPITATION_HALF_DAY_LIGHT.millimeters.inMicrometers.toFloat(),
                     Precipitation.PRECIPITATION_HALF_DAY_LIGHT.millimeters.formatValue(activity),
                     activity.getString(R.string.precipitation_intensity_light),
                     TrendRecyclerView.KeyLine.ContentPosition.BELOW_LINE
@@ -182,7 +182,7 @@ class DailyPrecipitationAdapter(
             )
             keyLineList.add(
                 TrendRecyclerView.KeyLine(
-                    -Precipitation.PRECIPITATION_HALF_DAY_HEAVY.toFloat(),
+                    -Precipitation.PRECIPITATION_HALF_DAY_HEAVY.millimeters.inMicrometers.toFloat(),
                     Precipitation.PRECIPITATION_HALF_DAY_HEAVY.millimeters.formatValue(activity),
                     activity.getString(R.string.precipitation_intensity_heavy),
                     TrendRecyclerView.KeyLine.ContentPosition.BELOW_LINE

app/src/main/java/org/breezyweather/ui/main/adapters/trend/daily/DailyTemperatureAdapter.kt

@@ -26,6 +26,7 @@ import breezyweather.domain.location.model.Location
 import org.breezyweather.R
 import org.breezyweather.common.activities.BreezyActivity
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getCalendarMonth
 import org.breezyweather.common.extensions.getThemeColor
 import org.breezyweather.common.options.appearance.DetailScreen
@@ -84,7 +85,7 @@ class DailyTemperatureAdapter(
                         talkBackBuilder.append(activity.getString(org.breezyweather.unit.R.string.locale_separator))
                             .append(activity.getString(R.string.precipitation_probability))
                             .append(activity.getString(R.string.colon_separator))
-                            .append(UnitUtils.formatPercent(activity, p))
+                            .append(p.formatPercent(activity))
                     }
                 }
             }
@@ -104,7 +105,7 @@ class DailyTemperatureAdapter(
                         talkBackBuilder.append(activity.getString(org.breezyweather.unit.R.string.locale_separator))
                             .append(activity.getString(R.string.precipitation_probability))
                             .append(activity.getString(R.string.colon_separator))
-                            .append(UnitUtils.formatPercent(activity, p))
+                            .append(p.formatPercent(activity))
                     }
                 }
             }
@@ -112,15 +113,10 @@ class DailyTemperatureAdapter(
                 daily.day?.weatherCode?.let { ResourceHelper.getWeatherIcon(mResourceProvider, it, true) },
                 missingIconVisibility = View.INVISIBLE
             )
-            val daytimePrecipitationProbability = daily.day?.precipitationProbability?.total?.toFloat()
-            val nighttimePrecipitationProbability = daily.night?.precipitationProbability?.total?.toFloat()
-            var p: Float = max(
-                daytimePrecipitationProbability ?: 0f,
-                nighttimePrecipitationProbability ?: 0f
-            )
-            if (!mShowPrecipitationProbability) {
-                p = 0f
-            }
+            val daytimePrecipitationProbability = daily.day?.precipitationProbability?.total
+            val nighttimePrecipitationProbability = daily.night?.precipitationProbability?.total
+            val p = listOfNotNull(daytimePrecipitationProbability, nighttimePrecipitationProbability)
+                .takeIf { it.isNotEmpty() }?.maxBy { it.value }
             mPolylineAndHistogramView.setData(
                 buildTemperatureArrayForItem(mDaytimeTemperatures, position),
                 buildTemperatureArrayForItem(mNighttimeTemperatures, position),
@@ -136,12 +132,8 @@ class DailyTemperatureAdapter(
                 ),
                 mHighestTemperature,
                 mLowestTemperature,
-                if (p > 0) p else null,
-                if (p > 0) {
-                    UnitUtils.formatPercent(activity, p.toDouble())
-                } else {
-                    null
-                },
+                p?.takeIf { it.value > 0 && mShowPrecipitationProbability }?.inPercent?.toFloat(),
+                p?.takeIf { it.value > 0 && mShowPrecipitationProbability }?.formatPercent(activity, UnitWidth.NARROW),
                 100f,
                 0f
             )

app/src/main/java/org/breezyweather/ui/main/adapters/trend/hourly/HourlyCloudCoverAdapter.kt

@@ -18,22 +18,26 @@ package org.breezyweather.ui.main.adapters.trend.hourly
 
 import android.annotation.SuppressLint
 import android.content.Context
+import android.graphics.Color
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import breezyweather.domain.location.model.Location
 import org.breezyweather.R
 import org.breezyweather.common.activities.BreezyActivity
+import org.breezyweather.common.extensions.CLOUD_COVER_FEW
+import org.breezyweather.common.extensions.CLOUD_COVER_SCT
+import org.breezyweather.common.extensions.formatPercent
+import org.breezyweather.common.extensions.getCloudCoverColor
+import org.breezyweather.common.extensions.getCloudCoverDescription
 import org.breezyweather.common.extensions.getThemeColor
 import org.breezyweather.common.options.appearance.DetailScreen
-import org.breezyweather.common.utils.UnitUtils
-import org.breezyweather.domain.weather.model.CLOUD_COVER_CLEAR
-import org.breezyweather.domain.weather.model.CLOUD_COVER_PARTLY
-import org.breezyweather.domain.weather.model.getCloudCoverColor
 import org.breezyweather.ui.common.widgets.trend.TrendRecyclerView
 import org.breezyweather.ui.common.widgets.trend.chart.PolylineAndHistogramView
 import org.breezyweather.ui.theme.ThemeManager
 import org.breezyweather.ui.theme.weatherView.WeatherViewController
+import org.breezyweather.unit.formatting.UnitWidth
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 
 /**
  * Hourly Cloud Cover adapter.
@@ -60,7 +64,7 @@ class HourlyCloudCoverAdapter(
             hourly.cloudCover?.let { cloudCover ->
                 talkBackBuilder
                     .append(activity.getString(org.breezyweather.unit.R.string.locale_separator))
-                    .append(UnitUtils.formatPercent(activity, cloudCover.toDouble()))
+                    .append(cloudCover.formatPercent(activity, UnitWidth.NARROW))
             }
             mPolylineAndHistogramView.setData(
                 null,
@@ -69,14 +73,14 @@ class HourlyCloudCoverAdapter(
                 null,
                 null,
                 null,
-                hourly.cloudCover?.toFloat() ?: 0f,
-                hourly.cloudCover?.let { UnitUtils.formatPercent(activity, it.toDouble()) },
+                hourly.cloudCover?.inPercent?.toFloat() ?: 0f,
+                hourly.cloudCover?.formatPercent(activity, UnitWidth.NARROW),
                 100f,
                 0f
             )
             mPolylineAndHistogramView.setLineColors(
-                hourly.getCloudCoverColor(activity),
-                hourly.getCloudCoverColor(activity),
+                hourly.cloudCover?.getCloudCoverColor(activity) ?: Color.TRANSPARENT,
+                hourly.cloudCover?.getCloudCoverColor(activity) ?: Color.TRANSPARENT,
                 activity.getThemeColor(com.google.android.material.R.attr.colorOutline)
             )
 
@@ -108,7 +112,7 @@ class HourlyCloudCoverAdapter(
 
     init {
         mHighestCloudCover = location.weather!!.nextHourlyForecast
-            .mapNotNull { it.cloudCover }
+            .mapNotNull { it.cloudCover?.inPercent }
             .maxOrNull()
             ?.toFloat() ?: 0f
     }
@@ -132,18 +136,18 @@ class HourlyCloudCoverAdapter(
         val keyLineList = mutableListOf<TrendRecyclerView.KeyLine>()
         keyLineList.add(
             TrendRecyclerView.KeyLine(
-                CLOUD_COVER_PARTLY.toFloat(),
-                UnitUtils.formatPercent(activity, CLOUD_COVER_PARTLY),
-                activity.getString(R.string.weather_kind_partly_cloudy),
+                CLOUD_COVER_FEW.toFloat(),
+                CLOUD_COVER_FEW.percent.formatPercent(activity),
+                CLOUD_COVER_FEW.percent.getCloudCoverDescription(activity),
                 TrendRecyclerView.KeyLine.ContentPosition.ABOVE_LINE
             )
         )
         keyLineList.add(
             TrendRecyclerView.KeyLine(
-                CLOUD_COVER_CLEAR.toFloat(),
-                UnitUtils.formatPercent(activity, CLOUD_COVER_CLEAR),
-                activity.getString(R.string.weather_kind_clear),
-                TrendRecyclerView.KeyLine.ContentPosition.BELOW_LINE
+                CLOUD_COVER_SCT.toFloat(),
+                CLOUD_COVER_SCT.percent.formatPercent(activity),
+                CLOUD_COVER_SCT.percent.getCloudCoverDescription(activity),
+                TrendRecyclerView.KeyLine.ContentPosition.ABOVE_LINE
             )
         )
         host.setData(keyLineList, 100f, 0f)

app/src/main/java/org/breezyweather/ui/main/adapters/trend/hourly/HourlyHumidityAdapter.kt

@@ -25,6 +25,7 @@ import breezyweather.domain.location.model.Location
 import org.breezyweather.R
 import org.breezyweather.common.activities.BreezyActivity
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getThemeColor
 import org.breezyweather.common.options.appearance.DetailScreen
 import org.breezyweather.common.utils.UnitUtils
@@ -66,7 +67,7 @@ class HourlyHumidityAdapter(
                 talkBackBuilder.append(activity.getString(org.breezyweather.unit.R.string.locale_separator))
                     .append(activity.getString(R.string.humidity))
                     .append(activity.getString(R.string.colon_separator))
-                    .append(UnitUtils.formatPercent(activity, it))
+                    .append(it.formatPercent(activity))
             }
             hourly.dewPoint?.let {
                 talkBackBuilder.append(activity.getString(org.breezyweather.unit.R.string.locale_separator))
@@ -91,8 +92,8 @@ class HourlyHumidityAdapter(
                 null,
                 mHighestDewPoint,
                 mLowestDewPoint,
-                hourly.relativeHumidity?.toFloat(),
-                hourly.relativeHumidity?.let { UnitUtils.formatPercent(activity, it) },
+                hourly.relativeHumidity?.inPercent?.toFloat(),
+                hourly.relativeHumidity?.formatPercent(activity, UnitWidth.NARROW),
                 100f,
                 0f
             )

app/src/main/java/org/breezyweather/ui/main/adapters/trend/hourly/HourlyPrecipitationAdapter.kt

@@ -155,7 +155,7 @@ class HourlyPrecipitationAdapter(
             val keyLineList = mutableListOf<TrendRecyclerView.KeyLine>()
             keyLineList.add(
                 TrendRecyclerView.KeyLine(
-                    Precipitation.PRECIPITATION_HOURLY_LIGHT.toFloat(),
+                    Precipitation.PRECIPITATION_HOURLY_LIGHT.millimeters.inMicrometers.toFloat(),
                     activity.getString(R.string.precipitation_intensity_light),
                     Precipitation.PRECIPITATION_HALF_DAY_LIGHT.millimeters.formatValue(activity),
                     TrendRecyclerView.KeyLine.ContentPosition.ABOVE_LINE
@@ -163,7 +163,7 @@ class HourlyPrecipitationAdapter(
             )
             keyLineList.add(
                 TrendRecyclerView.KeyLine(
-                    Precipitation.PRECIPITATION_HOURLY_HEAVY.toFloat(),
+                    Precipitation.PRECIPITATION_HOURLY_HEAVY.millimeters.inMicrometers.toFloat(),
                     activity.getString(R.string.precipitation_intensity_heavy),
                     Precipitation.PRECIPITATION_HALF_DAY_HEAVY.millimeters.formatValue(activity),
                     TrendRecyclerView.KeyLine.ContentPosition.ABOVE_LINE

app/src/main/java/org/breezyweather/ui/main/adapters/trend/hourly/HourlyTemperatureAdapter.kt

@@ -25,10 +25,10 @@ import breezyweather.domain.location.model.Location
 import org.breezyweather.R
 import org.breezyweather.common.activities.BreezyActivity
 import org.breezyweather.common.extensions.formatMeasure
+import org.breezyweather.common.extensions.formatPercent
 import org.breezyweather.common.extensions.getCalendarMonth
 import org.breezyweather.common.extensions.getThemeColor
 import org.breezyweather.common.options.appearance.DetailScreen
-import org.breezyweather.common.utils.UnitUtils
 import org.breezyweather.ui.common.widgets.trend.TrendRecyclerView
 import org.breezyweather.ui.common.widgets.trend.chart.PolylineAndHistogramView
 import org.breezyweather.ui.theme.ThemeManager
@@ -80,15 +80,12 @@ class HourlyTemperatureAdapter(
                 },
                 missingIconVisibility = View.INVISIBLE
             )
-            val precipitationProbability = hourly.precipitationProbability?.total
-            var p: Float = precipitationProbability?.toFloat() ?: 0f
-            if (!mShowPrecipitationProbability) {
-                p = 0f
-            } else if (hourly.precipitationProbability?.total != null) {
+            val p = hourly.precipitationProbability?.total
+            if (mShowPrecipitationProbability && hourly.precipitationProbability?.total != null) {
                 talkBackBuilder.append(activity.getString(org.breezyweather.unit.R.string.locale_separator))
                     .append(activity.getString(R.string.precipitation_probability))
                     .append(activity.getString(R.string.colon_separator))
-                    .append(UnitUtils.formatPercent(activity, p.toDouble()))
+                    .append(hourly.precipitationProbability!!.total!!.formatPercent(activity, UnitWidth.NARROW))
             }
             mPolylineAndHistogramView.setData(
                 buildTemperatureArrayForItem(mTemperatures, position),
@@ -101,12 +98,8 @@ class HourlyTemperatureAdapter(
                 null,
                 mHighestTemperature,
                 mLowestTemperature,
-                if (p > 0) p else null,
-                if (p > 0) {
-                    UnitUtils.formatPercent(activity, p.toDouble())
-                } else {
-                    null
-                },
+                p?.takeIf { it.value > 0 && mShowPrecipitationProbability }?.inPercent?.toFloat(),
+                p?.takeIf { it.value > 0 && mShowPrecipitationProbability }?.formatPercent(activity, UnitWidth.NARROW),
                 100f,
                 0f
             )

app/src/src_nonfreenet/org/breezyweather/sources/accu/AccuService.kt

@@ -98,6 +98,7 @@ import org.breezyweather.unit.precipitation.Precipitation.Companion.inches
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.precipitation.PrecipitationUnit
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.speed.Speed.Companion.milesPerHour
@@ -432,10 +433,10 @@ class AccuService @Inject constructor(
                 gusts = currentResult.WindGust?.Speed?.Metric?.Value?.kilometersPerHour
             ),
             uV = UV(index = currentResult.UVIndex?.toDouble()),
-            relativeHumidity = currentResult.RelativeHumidity?.toDouble(),
+            relativeHumidity = currentResult.RelativeHumidity?.percent,
             dewPoint = currentResult.DewPoint?.Metric?.Value?.celsius,
             pressure = currentResult.Pressure?.Metric?.Value?.hectopascals,
-            cloudCover = currentResult.CloudCover,
+            cloudCover = currentResult.CloudCover?.percent,
             visibility = currentResult.Visibility?.Metric?.Value?.kilometers,
             ceiling = currentResult.Ceiling?.Metric?.Value?.meters,
             dailyForecast = dailyResult?.Headline?.Text,
@@ -465,11 +466,11 @@ class AccuService @Inject constructor(
                         ice = getQuantity(forecasts.Day?.Ice)
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = forecasts.Day?.PrecipitationProbability?.toDouble(),
-                        thunderstorm = forecasts.Day?.ThunderstormProbability?.toDouble(),
-                        rain = forecasts.Day?.RainProbability?.toDouble(),
-                        snow = forecasts.Day?.SnowProbability?.toDouble(),
-                        ice = forecasts.Day?.IceProbability?.toDouble()
+                        total = forecasts.Day?.PrecipitationProbability?.percent,
+                        thunderstorm = forecasts.Day?.ThunderstormProbability?.percent,
+                        rain = forecasts.Day?.RainProbability?.percent,
+                        snow = forecasts.Day?.SnowProbability?.percent,
+                        ice = forecasts.Day?.IceProbability?.percent
                     ),
                     precipitationDuration = PrecipitationDuration(
                         total = forecasts.Day?.HoursOfPrecipitation?.hours,
@@ -498,11 +499,11 @@ class AccuService @Inject constructor(
                         ice = getQuantity(forecasts.Night?.Ice)
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = forecasts.Night?.PrecipitationProbability?.toDouble(),
-                        thunderstorm = forecasts.Night?.ThunderstormProbability?.toDouble(),
-                        rain = forecasts.Night?.RainProbability?.toDouble(),
-                        snow = forecasts.Night?.SnowProbability?.toDouble(),
-                        ice = forecasts.Night?.IceProbability?.toDouble()
+                        total = forecasts.Night?.PrecipitationProbability?.percent,
+                        thunderstorm = forecasts.Night?.ThunderstormProbability?.percent,
+                        rain = forecasts.Night?.RainProbability?.percent,
+                        snow = forecasts.Night?.SnowProbability?.percent,
+                        ice = forecasts.Night?.IceProbability?.percent
                     ),
                     precipitationDuration = PrecipitationDuration(
                         total = forecasts.Night?.HoursOfPrecipitation?.hours,
@@ -588,11 +589,11 @@ class AccuService @Inject constructor(
                     ice = getQuantity(result.Ice)
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = result.PrecipitationProbability?.toDouble(),
-                    thunderstorm = result.ThunderstormProbability?.toDouble(),
-                    rain = result.RainProbability?.toDouble(),
-                    snow = result.SnowProbability?.toDouble(),
-                    ice = result.IceProbability?.toDouble()
+                    total = result.PrecipitationProbability?.percent,
+                    thunderstorm = result.ThunderstormProbability?.percent,
+                    rain = result.RainProbability?.percent,
+                    snow = result.SnowProbability?.percent,
+                    ice = result.IceProbability?.percent
                 ),
                 wind = Wind(
                     degree = result.Wind?.Direction?.Degrees?.toDouble(),
@@ -600,9 +601,9 @@ class AccuService @Inject constructor(
                     gusts = getSpeedInMetersPerSecond(result.WindGust?.Speed)
                 ),
                 uV = UV(index = result.UVIndex?.toDouble()),
-                relativeHumidity = result.RelativeHumidity?.toDouble(),
+                relativeHumidity = result.RelativeHumidity?.percent,
                 dewPoint = getTemperature(result.DewPoint),
-                cloudCover = result.CloudCover,
+                cloudCover = result.CloudCover?.percent,
                 visibility = getDistance(result.Visibility)
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/aemet/AemetService.kt

@@ -64,6 +64,7 @@ import org.breezyweather.sources.getWindDegree
 import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
@@ -275,7 +276,7 @@ class AemetService @Inject constructor(
                     speed = it.vv?.metersPerSecond,
                     gusts = it.vmax?.metersPerSecond
                 ),
-                relativeHumidity = it.hr,
+                relativeHumidity = it.hr?.percent,
                 dewPoint = it.tpr?.celsius,
                 pressure = it.pres?.hectopascals,
                 visibility = it.vis?.meters
@@ -366,7 +367,7 @@ class AemetService @Inject constructor(
                             feelsLike = maxAtMap.getOrElse(key) { null }?.celsius
                         ),
                         precipitationProbability = PrecipitationProbability(
-                            total = ppMap.getOrElse(key) { null }
+                            total = ppMap.getOrElse(key) { null }?.percent
                         ),
                         wind = Wind(
                             degree = wdMap.getOrElse(key) { null },
@@ -382,7 +383,7 @@ class AemetService @Inject constructor(
                             feelsLike = minAtMap.getOrElse(key) { null }?.celsius
                         ),
                         precipitationProbability = PrecipitationProbability(
-                            total = ppMap.getOrElse(key) { null }
+                            total = ppMap.getOrElse(key) { null }?.percent
                         ),
                         wind = Wind(
                             degree = wdMap.getOrElse(key) { null },
@@ -391,8 +392,8 @@ class AemetService @Inject constructor(
                         )
                     ),
                     relativeHumidity = DailyRelativeHumidity(
-                        max = maxRhMap.getOrElse(key) { null },
-                        min = minRhMap.getOrElse(key) { null }
+                        max = maxRhMap.getOrElse(key) { null }?.percent,
+                        min = minRhMap.getOrElse(key) { null }?.percent
                     ),
                     uV = UV(
                         index = uviMap.getOrElse(key) { null }
@@ -519,16 +520,16 @@ class AemetService @Inject constructor(
                         snow = snMap.getOrElse(key) { null }?.millimeters
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = ppMap.getOrElse(key) { null },
-                        thunderstorm = ptMap.getOrElse(key) { null },
-                        snow = psMap.getOrElse(key) { null }
+                        total = ppMap.getOrElse(key) { null }?.percent,
+                        thunderstorm = ptMap.getOrElse(key) { null }?.percent,
+                        snow = psMap.getOrElse(key) { null }?.percent
                     ),
                     wind = Wind(
                         degree = wdMap.getOrElse(key) { null },
                         speed = wsMap.getOrElse(key) { null }?.kilometersPerHour,
                         gusts = wgMap.getOrElse(key) { null }?.kilometersPerHour
                     ),
-                    relativeHumidity = rhMap.getOrElse(key) { null }
+                    relativeHumidity = rhMap.getOrElse(key) { null }?.percent
                 )
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/bmd/BmdService.kt

@@ -49,6 +49,7 @@ import org.breezyweather.common.source.WeatherSource.Companion.PRIORITY_NONE
 import org.breezyweather.sources.bmd.json.BmdData
 import org.breezyweather.sources.bmd.json.BmdForecastResult
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -241,10 +242,10 @@ class BmdService @Inject constructor(
                     )
                 ),
                 relativeHumidity = rhMap.getOrElse(key) { null }?.let {
-                    DailyRelativeHumidity(average = it)
+                    DailyRelativeHumidity(average = it.percent)
                 },
                 cloudCover = ccMap.getOrElse(key) { null }?.let {
-                    DailyCloudCover(average = it)
+                    DailyCloudCover(average = it.percent)
                 }
             )
         }
@@ -320,8 +321,8 @@ class BmdService @Inject constructor(
                         speed = wsMap.getOrElse(key) { null }?.kilometersPerHour,
                         gusts = wgMap.getOrElse(key) { null }?.kilometersPerHour
                     ),
-                    relativeHumidity = rhMap.getOrElse(key) { null },
-                    cloudCover = ccMap.getOrElse(key) { null }
+                    relativeHumidity = rhMap.getOrElse(key) { null }?.percent,
+                    cloudCover = ccMap.getOrElse(key) { null }?.percent
                 )
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/bmkg/BmkgService.kt

@@ -64,6 +64,7 @@ import org.breezyweather.sources.bmkg.json.BmkgWarningResult
 import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgramsPerCubicMeter
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -259,7 +260,7 @@ class BmkgService @Inject constructor(
                 degree = currentResult.data?.cuaca?.wdDeg,
                 speed = currentResult.data?.cuaca?.ws?.kilometersPerHour
             ),
-            relativeHumidity = currentResult.data?.cuaca?.hu,
+            relativeHumidity = currentResult.data?.cuaca?.hu?.percent,
             visibility = currentResult.data?.cuaca?.vs?.meters
         )
     }
@@ -310,8 +311,8 @@ class BmkgService @Inject constructor(
                                     degree = it.wdDeg,
                                     speed = it.ws?.kilometersPerHour
                                 ),
-                                relativeHumidity = it.hu,
-                                cloudCover = it.tcc?.toInt(),
+                                relativeHumidity = it.hu?.percent,
+                                cloudCover = it.tcc?.percent,
                                 visibility = it.vs?.meters
                             )
                         )

app/src/src_nonfreenet/org/breezyweather/sources/china/ChinaService.kt

@@ -64,6 +64,8 @@ import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgr
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.milligramsPerCubicMeter
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -281,7 +283,7 @@ class ChinaService @Inject constructor(
                 null
             },
             relativeHumidity = if (!current.humidity?.value.isNullOrEmpty()) {
-                current.humidity.value.toDoubleOrNull()
+                current.humidity.value.toDoubleOrNull()?.percent
             } else {
                 null
             },
@@ -368,12 +370,12 @@ class ChinaService @Inject constructor(
         return dailyList
     }
 
-    private fun getPrecipitationProbability(forecast: ChinaForecastDaily, index: Int): Double? {
+    private fun getPrecipitationProbability(forecast: ChinaForecastDaily, index: Int): Ratio? {
         if (forecast.precipitationProbability == null || forecast.precipitationProbability.value.isNullOrEmpty()) {
             return null
         }
 
-        return forecast.precipitationProbability.value.getOrNull(index)?.toDoubleOrNull()
+        return forecast.precipitationProbability.value.getOrNull(index)?.toDoubleOrNull()?.percent
     }
 
     private fun getHourlyList(

app/src/src_nonfreenet/org/breezyweather/sources/cwa/CwaService.kt

@@ -80,6 +80,7 @@ import org.breezyweather.sources.nlsc.NlscService.Companion.WUQIU_BBOX
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgramsPerCubicMeter
 import org.breezyweather.unit.pressure.Pressure
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.beaufort
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature
@@ -467,7 +468,7 @@ class CwaService @Inject constructor(
                 speed = windSpeed,
                 gusts = windGusts
             ),
-            relativeHumidity = relativeHumidity,
+            relativeHumidity = relativeHumidity?.percent,
             pressure = computeMeanSeaLevelPressure(
                 barometricPressure = barometricPressure,
                 altitude = altitude,
@@ -625,7 +626,7 @@ class CwaService @Inject constructor(
                             feelsLike = maxAtMap.getOrElse(dayTime) { null }?.celsius
                         ),
                         precipitationProbability = PrecipitationProbability(
-                            total = popMap.getOrElse(dayTime) { null }
+                            total = popMap.getOrElse(dayTime) { null }?.percent
                         ),
                         wind = Wind(
                             degree = wdMap.getOrElse(dayTime) { null },
@@ -640,7 +641,7 @@ class CwaService @Inject constructor(
                             feelsLike = minAtMap.getOrElse(nightTime) { null }?.celsius
                         ),
                         precipitationProbability = PrecipitationProbability(
-                            total = popMap.getOrElse(nightTime) { null }
+                            total = popMap.getOrElse(nightTime) { null }?.percent
                         ),
                         wind = Wind(
                             degree = wdMap.getOrElse(nightTime) { null },
@@ -762,13 +763,13 @@ class CwaService @Inject constructor(
                         feelsLike = atMap.getOrElse(key) { null }?.celsius
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = popMap.getOrElse(key) { null }
+                        total = popMap.getOrElse(key) { null }?.percent
                     ),
                     wind = Wind(
                         degree = wdMap.getOrElse(key) { null },
                         speed = wsMap.getOrElse(key) { null }?.metersPerSecond
                     ),
-                    relativeHumidity = rhMap.getOrElse(key) { null },
+                    relativeHumidity = rhMap.getOrElse(key) { null }?.percent,
                     dewPoint = tdMap.getOrElse(key) { null }?.celsius
                 )
             )

app/src/src_nonfreenet/org/breezyweather/sources/dmi/DmiService.kt

@@ -51,6 +51,7 @@ import org.breezyweather.sources.dmi.json.DmiWarningResult
 import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -214,7 +215,7 @@ class DmiService @Inject constructor(
                     speed = result.windSpeed?.metersPerSecond,
                     gusts = result.windGust?.metersPerSecond
                 ),
-                relativeHumidity = result.humidity,
+                relativeHumidity = result.humidity?.percent,
                 pressure = result.pressure?.hectopascals,
                 visibility = result.visibility?.meters
             )

app/src/src_nonfreenet/org/breezyweather/sources/eccc/EcccService.kt

@@ -59,6 +59,7 @@ import org.breezyweather.sources.eccc.json.EcccUnit
 import org.breezyweather.sources.getWindDegree
 import org.breezyweather.unit.distance.Distance.Companion.kilometers
 import org.breezyweather.unit.pressure.Pressure.Companion.kilopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -203,7 +204,7 @@ class EcccService @Inject constructor(
                 speed = getNonEmptyMetric(result.windSpeed)?.kilometersPerHour,
                 gusts = getNonEmptyMetric(result.windGust)?.kilometersPerHour
             ),
-            relativeHumidity = result.humidity?.toDoubleOrNull(),
+            relativeHumidity = result.humidity?.toDoubleOrNull()?.percent,
             dewPoint = getNonEmptyMetric(result.dewpoint)?.celsius,
             pressure = getNonEmptyMetric(result.pressure)?.kilopascals,
             visibility = getNonEmptyMetric(result.visibility)?.kilometers
@@ -263,7 +264,7 @@ class EcccService @Inject constructor(
                                         temperature = daytime.temperature?.periodHigh?.celsius
                                     ),
                                     precipitationProbability = PrecipitationProbability(
-                                        total = daytime.precip?.toDoubleOrNull()
+                                        total = daytime.precip?.toDoubleOrNull()?.percent
                                     )
                                 )
                             } else {
@@ -277,7 +278,7 @@ class EcccService @Inject constructor(
                                     temperature = nighttime.temperature?.periodLow?.celsius
                                 ),
                                 precipitationProbability = PrecipitationProbability(
-                                    total = nighttime.precip?.toDoubleOrNull()
+                                    total = nighttime.precip?.toDoubleOrNull()?.percent
                                 )
                             ),
                             sunshineDuration = daytime?.sun?.value?.toDoubleOrNull()?.hours
@@ -306,7 +307,7 @@ class EcccService @Inject constructor(
                     feelsLike = getNonEmptyMetric(result.feelsLike)?.celsius
                 ),
                 precipitationProbability = if (!result.precip.isNullOrEmpty()) {
-                    PrecipitationProbability(total = result.precip.toDoubleOrNull())
+                    PrecipitationProbability(total = result.precip.toDoubleOrNull()?.percent)
                 } else {
                     null
                 },

app/src/src_nonfreenet/org/breezyweather/sources/geosphereat/GeoSphereAtService.kt

@@ -54,6 +54,8 @@ import org.breezyweather.sources.geosphereat.json.GeoSphereAtWarningsResult
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgramsPerCubicMeter
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.pascals
+import org.breezyweather.unit.ratio.Ratio.Companion.fraction
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -361,10 +363,9 @@ class GeoSphereAtService @Inject constructor(
                 } else {
                     null
                 },
-                relativeHumidity = hourlyResult.features[0].properties!!.parameters!!.rh2m?.data?.getOrNull(i),
+                relativeHumidity = hourlyResult.features[0].properties!!.parameters!!.rh2m?.data?.getOrNull(i)?.percent,
                 pressure = hourlyResult.features[0].properties!!.parameters!!.sp?.data?.getOrNull(i)?.pascals,
-                cloudCover = hourlyResult.features[0].properties!!.parameters!!.tcc?.data?.getOrNull(i)?.times(100)
-                    ?.roundToInt()
+                cloudCover = hourlyResult.features[0].properties!!.parameters!!.tcc?.data?.getOrNull(i)?.fraction
             )
         }
     }

app/src/src_nonfreenet/org/breezyweather/sources/here/HereService.kt

@@ -54,6 +54,7 @@ import org.breezyweather.sources.here.json.HereWeatherData
 import org.breezyweather.unit.distance.Distance.Companion.kilometers
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -181,7 +182,7 @@ class HereService @Inject constructor(
                 speed = result.windSpeed?.kilometersPerHour
             ),
             uV = UV(index = result.uvIndex?.toDouble()),
-            relativeHumidity = result.humidity?.toDouble(),
+            relativeHumidity = result.humidity?.toDoubleOrNull()?.percent,
             dewPoint = result.dewPoint?.celsius,
             pressure = result.barometerPressure?.hectopascals,
             visibility = result.visibility?.kilometers
@@ -251,14 +252,14 @@ class HereService @Inject constructor(
                     snow = result.snowFall?.millimeters
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = result.precipitationProbability?.toDouble()
+                    total = result.precipitationProbability?.percent
                 ),
                 wind = Wind(
                     degree = result.windDirection,
                     speed = result.windSpeed?.kilometersPerHour
                 ),
                 uV = UV(index = result.uvIndex?.toDouble()),
-                relativeHumidity = result.humidity?.toDouble(),
+                relativeHumidity = result.humidity?.toDoubleOrNull()?.percent,
                 dewPoint = result.dewPoint?.celsius,
                 pressure = result.barometerPressure?.hectopascals,
                 visibility = result.visibility?.kilometers

app/src/src_nonfreenet/org/breezyweather/sources/hko/HkoService.kt

@@ -63,6 +63,8 @@ import org.breezyweather.sources.hko.json.HkoNormalsResult
 import org.breezyweather.sources.hko.json.HkoOneJsonResult
 import org.breezyweather.sources.hko.json.HkoWarningResult
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import org.json.JSONObject
@@ -337,7 +339,7 @@ class HkoService @Inject constructor(
             uV = UV(
                 index = oneJson.RHRREAD?.UVIndex?.toDoubleOrNull()
             ),
-            relativeHumidity = regionalWeather?.RH?.Value?.toDoubleOrNull(),
+            relativeHumidity = regionalWeather?.RH?.Value?.toDoubleOrNull()?.percent,
             pressure = regionalWeather?.Pressure?.Value?.toDoubleOrNull()?.hectopascals,
             dailyForecast = oneJson.F9D?.WeatherForecast?.getOrElse(0) { null }?.ForecastWeather
         )
@@ -496,7 +498,7 @@ class HkoService @Inject constructor(
                                 degree = value.ForecastWindDirection,
                                 speed = value.ForecastWindSpeed?.kilometersPerHour
                             ),
-                            relativeHumidity = value.ForecastRelativeHumidity
+                            relativeHumidity = value.ForecastRelativeHumidity?.percent
                         )
                     )
                 }
@@ -935,7 +937,7 @@ class HkoService @Inject constructor(
 
     private fun getPrecipitationProbability(
         probability: String?,
-    ): Double? {
+    ): Ratio? {
         return when (probability) {
             "<10%" -> 10.0
             "20%" -> 20.0
@@ -944,7 +946,7 @@ class HkoService @Inject constructor(
             "80%" -> 80.0
             ">90%" -> 90.0
             else -> null
-        }
+        }?.percent
     }
 
     private fun getAlertColor(

app/src/src_nonfreenet/org/breezyweather/sources/ilmateenistus/IlmateenistusService.kt

@@ -149,32 +149,26 @@ class IlmateenistusService @Inject constructor(
         context: Context,
         forecastResult: IlmateenistusForecastResult,
     ): List<HourlyWrapper> {
-        val hourlyList = mutableListOf<HourlyWrapper>()
         val formatter = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.ENGLISH)
         formatter.timeZone = TimeZone.getTimeZone("Europe/Tallinn")
-        forecastResult.forecast?.tabular?.time?.forEach {
-            if (it.attributes.from != null) {
-                hourlyList.add(
-                    HourlyWrapper(
-                        date = formatter.parse(it.attributes.from)!!,
-                        weatherText = getWeatherText(context, it.phenomen?.attributes?.className),
-                        weatherCode = getWeatherCode(it.phenomen?.attributes?.className),
-                        temperature = TemperatureWrapper(
-                            temperature = it.temperature?.attributes?.value?.toDoubleOrNull()?.celsius
-                        ),
-                        precipitation = Precipitation(
-                            total = it.precipitation?.attributes?.value?.toDoubleOrNull()?.millimeters
-                        ),
-                        wind = Wind(
-                            degree = it.windDirection?.attributes?.deg?.toDoubleOrNull(),
-                            speed = it.windSpeed?.attributes?.mps?.toDoubleOrNull()?.metersPerSecond
-                        ),
-                        pressure = it.pressure?.attributes?.value?.toDoubleOrNull()?.hectopascals
-                    )
-                )
-            }
-        }
-        return hourlyList
+        return forecastResult.forecast?.tabular?.time?.filter { it.attributes.from != null }?.map {
+            HourlyWrapper(
+                date = formatter.parse(it.attributes.from!!)!!,
+                weatherText = getWeatherText(context, it.phenomen?.attributes?.className),
+                weatherCode = getWeatherCode(it.phenomen?.attributes?.className),
+                temperature = TemperatureWrapper(
+                    temperature = it.temperature?.attributes?.value?.toDoubleOrNull()?.celsius
+                ),
+                precipitation = Precipitation(
+                    total = it.precipitation?.attributes?.value?.toDoubleOrNull()?.millimeters
+                ),
+                wind = Wind(
+                    degree = it.windDirection?.attributes?.deg?.toDoubleOrNull(),
+                    speed = it.windSpeed?.attributes?.mps?.toDoubleOrNull()?.metersPerSecond
+                ),
+                pressure = it.pressure?.attributes?.value?.toDoubleOrNull()?.hectopascals
+            )
+        } ?: emptyList()
     }
 
     private fun getWeatherText(

app/src/src_nonfreenet/org/breezyweather/sources/imd/ImdService.kt

@@ -39,6 +39,7 @@ import org.breezyweather.common.source.WeatherSource.Companion.PRIORITY_HIGHEST
 import org.breezyweather.common.source.WeatherSource.Companion.PRIORITY_NONE
 import org.breezyweather.sources.imd.json.ImdWeatherResult
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -278,8 +279,8 @@ class ImdService @Inject constructor(
                         speed = wspdMap[it]?.metersPerSecond,
                         gusts = gustMap[it]?.metersPerSecond
                     ),
-                    relativeHumidity = rhMap[it],
-                    cloudCover = tcdcMap[it]?.toInt()
+                    relativeHumidity = rhMap[it]?.percent,
+                    cloudCover = tcdcMap[it]?.percent
                 )
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/ims/ImsService.kt

@@ -56,6 +56,7 @@ import org.breezyweather.common.utils.helpers.LogHelper
 import org.breezyweather.sources.RefreshHelper
 import org.breezyweather.sources.ims.json.ImsLocation
 import org.breezyweather.sources.ims.json.ImsWeatherData
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -227,7 +228,7 @@ class ImsService @Inject constructor(
                                 feelsLike = hourlyResult.value.windChill?.toDoubleOrNull()?.celsius
                             ),
                             precipitationProbability = PrecipitationProbability(
-                                total = hourlyResult.value.rainChance?.toDoubleOrNull()
+                                total = hourlyResult.value.rainChance?.toDoubleOrNull()?.percent
                             ),
                             wind = hourlyResult.value.windSpeed?.let { windSpeed ->
                                 Wind(
@@ -240,7 +241,7 @@ class ImsService @Inject constructor(
                             uV = hourlyResult.value.uvIndex?.toDoubleOrNull()?.let { uvi ->
                                 UV(uvi)
                             },
-                            relativeHumidity = hourlyResult.value.relativeHumidity?.toDoubleOrNull()
+                            relativeHumidity = hourlyResult.value.relativeHumidity?.toDoubleOrNull()?.percent
                         )
                     )
                 }
@@ -275,7 +276,7 @@ class ImsService @Inject constructor(
                 )
             },
             uV = data.analysis.uvIndex?.toDoubleOrNull()?.let { UV(it) },
-            relativeHumidity = data.analysis.relativeHumidity?.toDoubleOrNull(),
+            relativeHumidity = data.analysis.relativeHumidity?.toDoubleOrNull()?.percent,
             dewPoint = data.analysis.dewPointTemp?.toDoubleOrNull()?.celsius,
             dailyForecast = dailyForecast
         )

app/src/src_nonfreenet/org/breezyweather/sources/ipma/IpmaService.kt

@@ -52,6 +52,7 @@ import org.breezyweather.sources.ipma.json.IpmaAlertResult
 import org.breezyweather.sources.ipma.json.IpmaDistrictResult
 import org.breezyweather.sources.ipma.json.IpmaForecastResult
 import org.breezyweather.sources.ipma.json.IpmaLocationResult
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -182,7 +183,7 @@ class IpmaService @Inject constructor(
                         TemperatureWrapper(temperature = tMax.celsius)
                     },
                     precipitationProbability = PrecipitationProbability(
-                        total = result.probabilidadePrecipita?.toDoubleOrNull()
+                        total = result.probabilidadePrecipita?.toDoubleOrNull()?.percent
                     ),
                     wind = Wind(
                         degree = getWindDegree(result.ddVento)
@@ -195,7 +196,7 @@ class IpmaService @Inject constructor(
                         ?.tMin?.toDoubleOrNull() // Get next day min temperature to have overnight temp
                         ?.let { tMin -> TemperatureWrapper(temperature = tMin.celsius) },
                     precipitationProbability = PrecipitationProbability(
-                        total = result.probabilidadePrecipita?.toDoubleOrNull()
+                        total = result.probabilidadePrecipita?.toDoubleOrNull()?.percent
                     ),
                     wind = Wind(
                         degree = getWindDegree(result.ddVento)
@@ -204,7 +205,7 @@ class IpmaService @Inject constructor(
                 uV = UV(
                     index = result.iUv?.toDoubleOrNull()
                 ),
-                relativeHumidity = result.hR?.toDoubleOrNull()?.let { hr -> DailyRelativeHumidity(average = hr) }
+                relativeHumidity = result.hR?.toDoubleOrNull()?.let { h -> DailyRelativeHumidity(average = h.percent) }
             )
         }
     }
@@ -232,13 +233,13 @@ class IpmaService @Inject constructor(
                         it.probabilidadePrecipita?.toDoubleOrNull()
                     } else {
                         lastPrecipitationProbability
-                    }
+                    }?.percent
                 ),
                 wind = Wind(
                     degree = getWindDegree(it.ddVento),
                     speed = it.ffVento?.toDoubleOrNull()?.kilometersPerHour
                 ),
-                relativeHumidity = it.hR?.toDoubleOrNull()
+                relativeHumidity = it.hR?.toDoubleOrNull()?.percent
             ).also { hourly ->
                 if (it.probabilidadePrecipita != "-99.0") {
                     lastPrecipitationProbability = it.probabilidadePrecipita?.toDoubleOrNull()

app/src/src_nonfreenet/org/breezyweather/sources/jma/JmaService.kt

@@ -69,6 +69,7 @@ import org.breezyweather.sources.jma.json.JmaHourlyResult
 import org.breezyweather.sources.jma.json.JmaWeekAreaResult
 import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import org.json.JSONObject
@@ -317,7 +318,7 @@ class JmaService @Inject constructor(
                     degree = getWindDirection(it.windDirection?.getOrNull(0)),
                     speed = it.wind?.getOrNull(0)?.metersPerSecond
                 ),
-                relativeHumidity = it.humidity?.getOrNull(0),
+                relativeHumidity = it.humidity?.getOrNull(0)?.percent,
                 pressure = it.normalPressure?.getOrNull(0)?.hectopascals,
                 visibility = it.visibility?.getOrNull(0)?.meters,
                 dailyForecast = dailyForecast
@@ -446,12 +447,18 @@ class JmaService @Inject constructor(
                     temperature = TemperatureWrapper(
                         temperature = maxTMap.getOrElse(key) { null }?.celsius
                     ),
-                    precipitationProbability = PrecipitationProbability(
-                        total = max(
-                            popMap.getOrElse(key + 6.hours.inWholeMilliseconds) { 0.0 },
-                            popMap.getOrElse(key + 12.hours.inWholeMilliseconds) { 0.0 }
+                    precipitationProbability = if (popMap.containsKey(key + 6.hours.inWholeMilliseconds) ||
+                        popMap.containsKey(key + 12.hours.inWholeMilliseconds)
+                    ) {
+                        PrecipitationProbability(
+                            total = max(
+                                popMap.getOrElse(key + 6.hours.inWholeMilliseconds) { 0.0 },
+                                popMap.getOrElse(key + 12.hours.inWholeMilliseconds) { 0.0 }
+                            ).percent
                         )
-                    )
+                    } else {
+                        null
+                    }
                 ),
                 night = HalfDayWrapper(
                     weatherText = getDailyWeatherText(
@@ -466,12 +473,18 @@ class JmaService @Inject constructor(
                     temperature = TemperatureWrapper(
                         temperature = minTMap.getOrElse(key + 1.days.inWholeMilliseconds) { null }?.celsius
                     ),
-                    precipitationProbability = PrecipitationProbability(
-                        total = max(
-                            popMap.getOrElse(key + 18.hours.inWholeMilliseconds) { 0.0 },
-                            popMap.getOrElse(key + 24.hours.inWholeMilliseconds) { 0.0 }
+                    precipitationProbability = if (popMap.containsKey(key + 6.hours.inWholeMilliseconds) ||
+                        popMap.containsKey(key + 12.hours.inWholeMilliseconds)
+                    ) {
+                        PrecipitationProbability(
+                            total = max(
+                                popMap.getOrElse(key + 6.hours.inWholeMilliseconds) { 0.0 },
+                                popMap.getOrElse(key + 12.hours.inWholeMilliseconds) { 0.0 }
+                            ).percent
                         )
-                    )
+                    } else {
+                        null
+                    }
                 )
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/lhmt/LhmtService.kt

@@ -51,6 +51,7 @@ import org.breezyweather.sources.lhmt.json.LhmtLocationsResult
 import org.breezyweather.sources.lhmt.json.LhmtWeatherResult
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -209,9 +210,9 @@ class LhmtService @Inject constructor(
                     speed = it.windSpeed?.metersPerSecond,
                     gusts = it.windGust?.metersPerSecond
                 ),
-                relativeHumidity = it.relativeHumidity,
+                relativeHumidity = it.relativeHumidity?.percent,
                 pressure = it.seaLevelPressure?.hectopascals,
-                cloudCover = it.cloudCover?.toInt()
+                cloudCover = it.cloudCover?.percent
             )
         }
     }
@@ -256,9 +257,9 @@ class LhmtService @Inject constructor(
                             speed = it.windSpeed?.metersPerSecond,
                             gusts = it.windGust?.metersPerSecond
                         ),
-                        relativeHumidity = it.relativeHumidity,
+                        relativeHumidity = it.relativeHumidity?.percent,
                         pressure = it.seaLevelPressure?.hectopascals,
-                        cloudCover = it.cloudCover?.toInt()
+                        cloudCover = it.cloudCover?.percent
                     )
                 )
             }

app/src/src_nonfreenet/org/breezyweather/sources/lvgmc/LvgmcService.kt

@@ -57,6 +57,7 @@ import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgr
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.milligramsPerCubicMeter
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -247,7 +248,7 @@ class LvgmcService @Inject constructor(
                     uV = UV(
                         index = it.uvIndex?.toDoubleOrNull()
                     ),
-                    relativeHumidity = it.relativeHumidity?.toDoubleOrNull(),
+                    relativeHumidity = it.relativeHumidity?.toDoubleOrNull()?.percent,
                     pressure = it.pressure?.toDoubleOrNull()?.hectopascals,
                     visibility = it.visibility?.toDoubleOrNull()?.meters
                 )
@@ -360,8 +361,8 @@ class LvgmcService @Inject constructor(
                         snow = it.snow?.toDoubleOrNull()?.millimeters
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = it.precipitationProbability?.toDoubleOrNull(),
-                        thunderstorm = it.thunderstormProbability?.toDoubleOrNull()
+                        total = it.precipitationProbability?.toDoubleOrNull()?.percent,
+                        thunderstorm = it.thunderstormProbability?.toDoubleOrNull()?.percent
                     ),
                     wind = Wind(
                         degree = it.windDirection?.toDoubleOrNull(),
@@ -371,9 +372,9 @@ class LvgmcService @Inject constructor(
                     uV = UV(
                         index = it.uvIndex?.toDoubleOrNull()
                     ),
-                    relativeHumidity = it.relativeHumidity?.toDoubleOrNull(),
+                    relativeHumidity = it.relativeHumidity?.toDoubleOrNull()?.percent,
                     pressure = it.pressure?.toDoubleOrNull()?.hectopascals,
-                    cloudCover = it.cloudCover?.toIntOrNull()
+                    cloudCover = it.cloudCover?.toDoubleOrNull()?.percent
                 )
             }
     }

app/src/src_nonfreenet/org/breezyweather/sources/meteoam/MeteoAmService.kt

@@ -47,6 +47,7 @@ import org.breezyweather.sources.meteoam.json.MeteoAmObservationResult
 import org.breezyweather.sources.meteoam.json.MeteoAmReverseLocation
 import org.breezyweather.sources.meteoam.json.MeteoAmReverseLocationResult
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -185,8 +186,9 @@ class MeteoAmService @Inject constructor(
                     currentResult.getOrElse(keys["wkmh"].toString()) { null }?.getOrElse("0") { null } as? Double
                     )?.kilometersPerHour
             ),
-            relativeHumidity = currentResult.getOrElse(keys["r"].toString()) { null }
-                ?.getOrElse("0") { null } as? Double,
+            relativeHumidity = (
+                currentResult.getOrElse(keys["r"].toString()) { null }?.getOrElse("0") { null } as? Double
+                )?.percent,
             pressure = (currentResult.getOrElse(keys["pmsl"].toString()) { null }?.getOrElse("0") { null } as? Double)
                 ?.hectopascals
         )
@@ -239,7 +241,9 @@ class MeteoAmService @Inject constructor(
                         )?.celsius
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = data.getOrElse(keys["tpp"].toString()) { null }?.getOrElse(i.toString()) { null } as? Double
+                    total = (
+                        data.getOrElse(keys["tpp"].toString()) { null }?.getOrElse(i.toString()) { null } as? Double
+                        )?.percent
                 ),
                 wind = Wind(
                     degree = data.getOrElse(keys["wdir"].toString()) { null }?.getOrElse(i.toString()) { null }?.let {
@@ -249,8 +253,9 @@ class MeteoAmService @Inject constructor(
                         data.getOrElse(keys["wkmh"].toString()) { null }?.getOrElse(i.toString()) { null } as? Double
                         )?.kilometersPerHour
                 ),
-                relativeHumidity = data.getOrElse(keys["r"].toString()) { null }
-                    ?.getOrElse(i.toString()) { null } as? Double,
+                relativeHumidity = (
+                    data.getOrElse(keys["r"].toString()) { null }?.getOrElse(i.toString()) { null } as? Double
+                    )?.percent,
                 pressure = (
                     data.getOrElse(keys["pmsl"].toString()) { null }?.getOrElse(i.toString()) { null } as? Double
                     )?.hectopascals

app/src/src_nonfreenet/org/breezyweather/sources/metie/MetIeService.kt

@@ -50,6 +50,7 @@ import org.breezyweather.sources.metie.json.MetIeWarning
 import org.breezyweather.sources.metie.json.MetIeWarningResult
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -210,7 +211,7 @@ class MetIeService @Inject constructor(
                     degree = result.windDirection?.toDoubleOrNull(),
                     speed = result.windSpeed?.kilometersPerHour
                 ),
-                relativeHumidity = result.humidity?.toDoubleOrNull(),
+                relativeHumidity = result.humidity?.toDoubleOrNull()?.percent,
                 pressure = result.pressure?.toDoubleOrNull()?.hectopascals
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/metno/MetNoService.kt

@@ -56,6 +56,7 @@ import org.breezyweather.sources.metno.json.MetNoNowcastResult
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgramsPerCubicMeter
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -294,10 +295,10 @@ class MetNoService @Inject constructor(
                 } else {
                     null
                 },
-                relativeHumidity = currentTimeseries.instant?.details?.relativeHumidity,
+                relativeHumidity = currentTimeseries.instant?.details?.relativeHumidity?.percent,
                 dewPoint = currentTimeseries.instant?.details?.dewPointTemperature?.celsius,
                 pressure = currentTimeseries.instant?.details?.airPressureAtSeaLevel?.hectopascals,
-                cloudCover = currentTimeseries.instant?.details?.cloudAreaFraction?.roundToInt()
+                cloudCover = currentTimeseries.instant?.details?.cloudAreaFraction?.percent
             )
         } else {
             null
@@ -323,12 +324,12 @@ class MetNoService @Inject constructor(
                         ?: hourlyForecast.data?.next12Hours?.details?.precipitationAmount?.millimeters
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = hourlyForecast.data?.next1Hours?.details?.probabilityOfPrecipitation
-                        ?: hourlyForecast.data?.next6Hours?.details?.probabilityOfPrecipitation
-                        ?: hourlyForecast.data?.next12Hours?.details?.probabilityOfPrecipitation,
-                    thunderstorm = hourlyForecast.data?.next1Hours?.details?.probabilityOfThunder
-                        ?: hourlyForecast.data?.next6Hours?.details?.probabilityOfThunder
-                        ?: hourlyForecast.data?.next12Hours?.details?.probabilityOfThunder
+                    total = hourlyForecast.data?.next1Hours?.details?.probabilityOfPrecipitation?.percent
+                        ?: hourlyForecast.data?.next6Hours?.details?.probabilityOfPrecipitation?.percent
+                        ?: hourlyForecast.data?.next12Hours?.details?.probabilityOfPrecipitation?.percent,
+                    thunderstorm = hourlyForecast.data?.next1Hours?.details?.probabilityOfThunder?.percent
+                        ?: hourlyForecast.data?.next6Hours?.details?.probabilityOfThunder?.percent
+                        ?: hourlyForecast.data?.next12Hours?.details?.probabilityOfThunder?.percent
                 ),
                 wind = hourlyForecast.data?.instant?.details?.let { details ->
                     Wind(
@@ -337,10 +338,10 @@ class MetNoService @Inject constructor(
                     )
                 },
                 uV = UV(index = hourlyForecast.data?.instant?.details?.ultravioletIndexClearSky),
-                relativeHumidity = hourlyForecast.data?.instant?.details?.relativeHumidity,
+                relativeHumidity = hourlyForecast.data?.instant?.details?.relativeHumidity?.percent,
                 dewPoint = hourlyForecast.data?.instant?.details?.dewPointTemperature?.celsius,
                 pressure = hourlyForecast.data?.instant?.details?.airPressureAtSeaLevel?.hectopascals,
-                cloudCover = hourlyForecast.data?.instant?.details?.cloudAreaFraction?.roundToInt()
+                cloudCover = hourlyForecast.data?.instant?.details?.cloudAreaFraction?.percent
             )
         }
     }

app/src/src_nonfreenet/org/breezyweather/sources/metoffice/MetOfficeService.kt

@@ -51,6 +51,7 @@ import org.breezyweather.sources.metoffice.json.MetOfficeHourly
 import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.pascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -135,10 +136,10 @@ class MetOfficeService @Inject constructor(
                         feelsLike = result.dayMaxFeelsLikeTemp?.celsius
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = result.dayProbabilityOfPrecipitation?.toDouble(),
-                        rain = result.dayProbabilityOfRain?.toDouble(),
-                        snow = result.dayProbabilityOfSnow?.toDouble(),
-                        thunderstorm = result.dayProbabilityOfSferics?.toDouble()
+                        total = result.dayProbabilityOfPrecipitation?.percent,
+                        rain = result.dayProbabilityOfRain?.percent,
+                        snow = result.dayProbabilityOfSnow?.percent,
+                        thunderstorm = result.dayProbabilityOfSferics?.percent
                     )
                 ),
                 night = HalfDayWrapper(
@@ -149,10 +150,10 @@ class MetOfficeService @Inject constructor(
                         feelsLike = result.nightMinFeelsLikeTemp?.celsius
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = result.nightProbabilityOfPrecipitation?.toDouble(),
-                        rain = result.nightProbabilityOfRain?.toDouble(),
-                        snow = result.nightProbabilityOfSnow?.toDouble(),
-                        thunderstorm = result.nightProbabilityOfSferics?.toDouble()
+                        total = result.nightProbabilityOfPrecipitation?.percent,
+                        rain = result.nightProbabilityOfRain?.percent,
+                        snow = result.nightProbabilityOfSnow?.percent,
+                        thunderstorm = result.nightProbabilityOfSferics?.percent
                     )
                 ),
                 uV = UV(index = result.maxUvIndex?.toDouble())
@@ -184,7 +185,7 @@ class MetOfficeService @Inject constructor(
                     snow = result.totalSnowAmount?.millimeters
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = result.probOfPrecipitation?.toDouble()
+                    total = result.probOfPrecipitation?.percent
                 ),
                 wind = Wind(
                     degree = result.windDirectionFrom10m?.toDouble(),
@@ -194,7 +195,7 @@ class MetOfficeService @Inject constructor(
                 uV = UV(
                     index = result.uvIndex?.toDouble()
                 ),
-                relativeHumidity = result.screenRelativeHumidity,
+                relativeHumidity = result.screenRelativeHumidity?.percent,
                 dewPoint = result.screenDewPointTemperature?.celsius,
                 pressure = result.mslp?.toDouble()?.pascals,
                 visibility = result.visibility?.toDouble()?.meters

app/src/src_nonfreenet/org/breezyweather/sources/mf/MfService.kt

@@ -75,6 +75,7 @@ import org.breezyweather.sources.mf.json.MfWarningsOverseasResult
 import org.breezyweather.sources.mf.json.MfWarningsResult
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -450,8 +451,8 @@ class MfService @Inject constructor(
                     ),
                     uV = UV(index = dailyForecast.uvIndex?.toDouble()),
                     relativeHumidity = DailyRelativeHumidity(
-                        min = dailyForecast.relativeHumidityMin?.toDouble(),
-                        max = dailyForecast.relativeHumidityMax?.toDouble()
+                        min = dailyForecast.relativeHumidityMin?.percent,
+                        max = dailyForecast.relativeHumidityMax?.percent
                     )
                 )
             )
@@ -482,9 +483,9 @@ class MfService @Inject constructor(
                     speed = hourlyForecast.windSpeed?.metersPerSecond,
                     gusts = hourlyForecast.windSpeedGust?.metersPerSecond
                 ),
-                relativeHumidity = hourlyForecast.relativeHumidity?.toDouble(),
+                relativeHumidity = hourlyForecast.relativeHumidity?.percent,
                 pressure = hourlyForecast.pSea?.hectopascals,
-                cloudCover = hourlyForecast.totalCloudCover
+                cloudCover = hourlyForecast.totalCloudCover?.percent
             )
         }
     }
@@ -561,11 +562,13 @@ class MfService @Inject constructor(
             }
         }
         return PrecipitationProbability(
-            maxOf(rainProbability ?: 0.0, snowProbability ?: 0.0, iceProbability ?: 0.0),
+            maxOf(rainProbability ?: 0.0, snowProbability ?: 0.0, iceProbability ?: 0.0)
+                .takeIf { rainProbability != null || snowProbability != null || iceProbability != null }
+                ?.percent,
             null,
-            rainProbability,
-            snowProbability,
-            iceProbability
+            rainProbability?.percent,
+            snowProbability?.percent,
+            iceProbability?.percent
         )
     }
 

app/src/src_nonfreenet/org/breezyweather/sources/mf/json/MfWarningOverseasComments.kt

@@ -25,5 +25,6 @@ import java.util.Date
 data class MfWarningOverseasComments(
     @Serializable(DateSerializer::class) @SerialName("begin_time") val beginTime: Date? = null,
     @Serializable(DateSerializer::class) @SerialName("end_time") val endTime: Date? = null,
+    // TODO: Sometimes return a single string "pas de vigilance particulière", see VIGI973 for example
     @SerialName("text_bloc_item") val textBlocItems: List<MfWarningOverseasTextBlocItem>?,
 )

app/src/src_nonfreenet/org/breezyweather/sources/mgm/MgmService.kt

@@ -54,6 +54,7 @@ import org.breezyweather.sources.mgm.json.MgmHourlyForecastResult
 import org.breezyweather.sources.mgm.json.MgmLocationResult
 import org.breezyweather.sources.mgm.json.MgmNormalsResult
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -249,7 +250,7 @@ class MgmService @Inject constructor(
                 degree = getValid(currentResult?.windDirection),
                 speed = getValid(currentResult?.windSpeed)?.kilometersPerHour
             ),
-            relativeHumidity = getValid(currentResult?.humidity),
+            relativeHumidity = getValid(currentResult?.humidity)?.percent,
             pressure = getValid(currentResult?.pressure)?.hectopascals
         )
     }
@@ -341,7 +342,7 @@ class MgmService @Inject constructor(
                         speed = it.windSpeed?.kilometersPerHour,
                         gusts = it.gust?.kilometersPerHour
                     ),
-                    relativeHumidity = it.humidity
+                    relativeHumidity = it.humidity?.percent
                 )
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/namem/NamemService.kt

@@ -62,6 +62,7 @@ import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgr
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.milligramsPerCubicMeter
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -253,7 +254,7 @@ class NamemService @Inject constructor(
                 degree = current?.windDir,
                 speed = current?.windSpeed?.metersPerSecond
             ),
-            relativeHumidity = current?.ff,
+            relativeHumidity = current?.ff?.percent,
             pressure = current?.pslp?.hectopascals
         )
     }
@@ -330,7 +331,7 @@ class NamemService @Inject constructor(
                                 feelsLike = forecast.temNFeel?.celsius
                             ),
                             precipitationProbability = PrecipitationProbability(
-                                total = forecast.wwNPer
+                                total = forecast.wwNPer?.percent
                             ),
                             wind = Wind(
                                 speed = forecast.wndN?.metersPerSecond
@@ -350,7 +351,7 @@ class NamemService @Inject constructor(
                             feelsLike = forecast.temDFeel?.celsius
                         ),
                         precipitationProbability = PrecipitationProbability(
-                            total = forecast.wwDPer
+                            total = forecast.wwDPer?.percent
                         ),
                         wind = Wind(
                             speed = forecast.wndD?.metersPerSecond
@@ -365,7 +366,7 @@ class NamemService @Inject constructor(
                                 feelsLike = it.temNFeel?.celsius
                             ),
                             precipitationProbability = PrecipitationProbability(
-                                total = it.wwNPer
+                                total = it.wwNPer?.percent
                             ),
                             wind = Wind(
                                 speed = it.wndN?.metersPerSecond
@@ -394,7 +395,7 @@ class NamemService @Inject constructor(
                             total = it.pre?.toDoubleOrNull()?.millimeters
                         ),
                         precipitationProbability = PrecipitationProbability(
-                            total = it.preProb?.toDoubleOrNull()
+                            total = it.preProb?.toDoubleOrNull()?.percent
                         ),
                         wind = Wind(
                             speed = it.wnd?.toDoubleOrNull()?.metersPerSecond

app/src/src_nonfreenet/org/breezyweather/sources/nws/NwsService.kt

@@ -69,6 +69,7 @@ import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
 import org.breezyweather.unit.pressure.Pressure.Companion.inchesOfMercury
 import org.breezyweather.unit.pressure.Pressure.Companion.pascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.speed.Speed.Companion.milesPerHour
@@ -282,7 +283,7 @@ class NwsService @Inject constructor(
                 } else {
                     null
                 },
-                relativeHumidity = it.relativeHumidity?.value,
+                relativeHumidity = it.relativeHumidity?.value?.percent,
                 dewPoint = it.dewpoint?.value?.celsius,
                 pressure = if (it.seaLevelPressure != null) {
                     it.seaLevelPressure.value?.pascals
@@ -320,7 +321,7 @@ class NwsService @Inject constructor(
                         temperature = it.temperature?.value?.celsius
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = it.probabilityOfPrecipitation?.value
+                        total = it.probabilityOfPrecipitation?.value?.percent
                     ),
                     wind = Wind(
                         degree = getWindDegree(it.windDirection),
@@ -336,7 +337,7 @@ class NwsService @Inject constructor(
                         temperature = it.temperature?.value?.celsius
                     ),
                     precipitationProbability = PrecipitationProbability(
-                        total = it.probabilityOfPrecipitation?.value
+                        total = it.probabilityOfPrecipitation?.value?.percent
                     ),
                     wind = Wind(
                         degree = getWindDegree(it.windDirection),
@@ -450,18 +451,18 @@ class NwsService @Inject constructor(
                     ice = iceAccumulationForecastList.getOrElse(it) { null }?.millimeters
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    total = probabilityOfPrecipitationForecastList.getOrElse(it) { null }?.toDouble(),
-                    thunderstorm = probabilityOfThunderForecastList.getOrElse(it) { null }?.toDouble()
+                    total = probabilityOfPrecipitationForecastList.getOrElse(it) { null }?.percent,
+                    thunderstorm = probabilityOfThunderForecastList.getOrElse(it) { null }?.percent
                 ),
                 wind = Wind(
                     degree = windDirectionForecastList.getOrElse(it) { null }?.toDouble(),
                     speed = windSpeedForecastList.getOrElse(it) { null }?.kilometersPerHour,
                     gusts = windGustForecastList.getOrElse(it) { null }?.kilometersPerHour
                 ),
-                relativeHumidity = relativeHumidityList.getOrElse(it) { null }?.toDouble(),
+                relativeHumidity = relativeHumidityList.getOrElse(it) { null }?.percent,
                 dewPoint = dewpointForecastList.getOrElse(it) { null }?.celsius,
                 pressure = pressureForecastList.getOrElse(it) { null }?.inchesOfMercury,
-                cloudCover = skyCoverForecastList.getOrElse(it) { null },
+                cloudCover = skyCoverForecastList.getOrElse(it) { null }?.percent,
                 visibility = visibilityForecastList.getOrElse(it) { null }?.meters
             )
         }

app/src/src_nonfreenet/org/breezyweather/sources/openweather/OpenWeatherService.kt

@@ -55,6 +55,8 @@ import org.breezyweather.unit.distance.Distance.Companion.meters
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgramsPerCubicMeter
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.fraction
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -187,10 +189,10 @@ class OpenWeatherService @Inject constructor(
                 speed = currentResult.wind?.speed?.metersPerSecond,
                 gusts = currentResult.wind?.gust?.metersPerSecond
             ),
-            relativeHumidity = currentResult.main?.humidity?.toDouble(),
+            relativeHumidity = currentResult.main?.humidity?.percent,
             pressure = currentResult.main?.pressure?.hectopascals,
-            cloudCover = currentResult.clouds?.all,
-            visibility = currentResult.visibility?.toDouble()?.meters
+            cloudCover = currentResult.clouds?.all?.percent,
+            visibility = currentResult.visibility?.meters
         )
     }
 
@@ -234,16 +236,16 @@ class OpenWeatherService @Inject constructor(
                     rain = result.rain?.cumul3h?.millimeters,
                     snow = result.snow?.cumul3h?.millimeters
                 ),
-                precipitationProbability = PrecipitationProbability(total = result.pop?.times(100.0)),
+                precipitationProbability = PrecipitationProbability(total = result.pop?.fraction),
                 wind = Wind(
                     degree = result.wind?.deg?.toDouble(),
                     speed = result.wind?.speed?.metersPerSecond,
                     gusts = result.wind?.gust?.metersPerSecond
                 ),
-                relativeHumidity = result.main?.humidity?.toDouble(),
+                relativeHumidity = result.main?.humidity?.percent,
                 pressure = result.main?.pressure?.hectopascals,
-                cloudCover = result.clouds?.all,
-                visibility = result.visibility?.toDouble()?.meters
+                cloudCover = result.clouds?.all?.percent,
+                visibility = result.visibility?.meters
             )
         }
     }

app/src/src_nonfreenet/org/breezyweather/sources/pagasa/PagasaService.kt

@@ -49,6 +49,7 @@ import org.breezyweather.sources.pagasa.json.PagasaHourlyResult
 import org.breezyweather.sources.pagasa.json.PagasaLocationResult
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
@@ -206,7 +207,7 @@ class PagasaService @Inject constructor(
                     degree = getWindDegree(it.windDirection),
                     speed = it.windSpeed?.substringBefore(" ")?.toDoubleOrNull()?.kilometersPerHour
                 ),
-                relativeHumidity = it.humidity?.substringBefore(" ")?.toDoubleOrNull(),
+                relativeHumidity = it.humidity?.substringBefore(" ")?.toDoubleOrNull()?.percent,
                 pressure = it.pressure?.toDoubleOrNull()?.hectopascals
             )
         }
@@ -264,7 +265,7 @@ class PagasaService @Inject constructor(
                                 degree = it.windDirection?.attributes?.deg?.toDoubleOrNull(),
                                 speed = it.windSpeed?.attributes?.mps?.toDoubleOrNull()?.metersPerSecond
                             ),
-                            relativeHumidity = it.relativeHumidity?.attributes?.value?.toDoubleOrNull()
+                            relativeHumidity = it.relativeHumidity?.attributes?.value?.toDoubleOrNull()?.percent
                         )
                     )
                 }

app/src/src_nonfreenet/org/breezyweather/sources/smg/SmgService.kt

@@ -55,6 +55,7 @@ import org.breezyweather.sources.smg.json.SmgWarningResult
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgramsPerCubicMeter
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.milligramsPerCubicMeter
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.kilometersPerHour
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -323,7 +324,7 @@ class SmgService @Inject constructor(
                         index = uvResult.UV?.Custom?.getOrNull(0)?.ActualUVBReport?.getOrNull(0)?.index
                             ?.getOrNull(0)?.Value?.getOrNull(0)?.toDoubleOrNull()
                     ),
-                    relativeHumidity = it.Humidity?.getOrNull(0)?.dValue?.getOrNull(0)?.toDoubleOrNull(),
+                    relativeHumidity = it.Humidity?.getOrNull(0)?.dValue?.getOrNull(0)?.toDoubleOrNull()?.percent,
                     dewPoint = it.DewPoint?.getOrNull(0)?.dValue?.getOrNull(0)?.toDoubleOrNull()?.celsius,
                     pressure = it.MeanSeaLevelPressure?.getOrNull(0)?.dValue?.getOrNull(0)?.toDoubleOrNull()
                         ?.hectopascals,
@@ -405,7 +406,7 @@ class SmgService @Inject constructor(
                             degree = it.Winddiv?.getOrNull(0)?.Value?.getOrNull(0)?.toDoubleOrNull(),
                             speed = it.Windspd?.getOrNull(0)?.Value?.getOrNull(0)?.toDoubleOrNull()?.kilometersPerHour
                         ),
-                        relativeHumidity = it.Humidity?.getOrNull(0)?.Value?.getOrNull(0)?.toDoubleOrNull()
+                        relativeHumidity = it.Humidity?.getOrNull(0)?.Value?.getOrNull(0)?.toDoubleOrNull()?.percent
                     )
                 )
             }

app/src/src_nonfreenet/org/breezyweather/sources/smhi/SmhiService.kt

@@ -43,6 +43,7 @@ import org.breezyweather.sources.smhi.json.SmhiTimeSeries
 import org.breezyweather.unit.distance.Distance.Companion.kilometers
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import retrofit2.Retrofit
@@ -153,14 +154,14 @@ class SmhiService @Inject constructor(
                     total = result.parameters.firstOrNull { it.name == "pmean" }?.values?.getOrNull(0)?.millimeters
                 ),
                 precipitationProbability = PrecipitationProbability(
-                    thunderstorm = result.parameters.firstOrNull { it.name == "tstm" }?.values?.getOrNull(0)
+                    thunderstorm = result.parameters.firstOrNull { it.name == "tstm" }?.values?.getOrNull(0)?.percent
                 ),
                 wind = Wind(
                     degree = result.parameters.firstOrNull { it.name == "wd" }?.values?.getOrNull(0),
                     speed = result.parameters.firstOrNull { it.name == "ws" }?.values?.getOrNull(0)?.metersPerSecond,
                     gusts = result.parameters.firstOrNull { it.name == "gust" }?.values?.getOrNull(0)?.metersPerSecond
                 ),
-                relativeHumidity = result.parameters.firstOrNull { it.name == "r" }?.values?.getOrNull(0),
+                relativeHumidity = result.parameters.firstOrNull { it.name == "r" }?.values?.getOrNull(0)?.percent,
                 pressure = result.parameters.firstOrNull { it.name == "msl" }?.values?.getOrNull(0)?.hectopascals,
                 visibility = result.parameters.firstOrNull { it.name == "vis" }?.values?.getOrNull(0)?.kilometers
             )

app/src/src_nonfreenet/org/breezyweather/sources/veduris/VedurIsService.kt

@@ -42,6 +42,7 @@ import org.breezyweather.sources.veduris.json.VedurIsStationForecast
 import org.breezyweather.sources.veduris.json.VedurIsStationResult
 import org.breezyweather.unit.precipitation.Precipitation.Companion.millimeters
 import org.breezyweather.unit.pressure.Pressure.Companion.hectopascals
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
 import org.breezyweather.unit.speed.Speed.Companion.metersPerSecond
 import org.breezyweather.unit.temperature.Temperature.Companion.celsius
 import org.json.JSONObject
@@ -202,7 +203,7 @@ class VedurIsService @Inject constructor(
                         degree = it.windDirection,
                         speed = it.windSpeed?.metersPerSecond
                     ),
-                    relativeHumidity = if (it.humidity != 0.0) it.humidity else null
+                    relativeHumidity = it.humidity.takeIf { h -> h != 0.0 }?.percent
                 )
             )
         }
@@ -226,7 +227,7 @@ class VedurIsService @Inject constructor(
                             degree = it.windDirection,
                             speed = it.windSpeed?.metersPerSecond
                         ),
-                        relativeHumidity = if (it.humidity != 0.0) it.humidity else null
+                        relativeHumidity = it.humidity.takeIf { h -> h != 0.0 }?.percent
                     )
                 )
             }
@@ -277,10 +278,10 @@ class VedurIsService @Inject constructor(
                     speed = it.windSpeed?.metersPerSecond,
                     gusts = it.maxWindGust?.metersPerSecond
                 ),
-                relativeHumidity = if (it.humidity != 0.0) it.humidity else null,
+                relativeHumidity = it.humidity.takeIf { h -> h != 0.0 }?.percent,
                 dewPoint = it.dewPoint?.celsius,
                 pressure = it.pressure?.hectopascals,
-                cloudCover = it.cloudCover?.toInt()
+                cloudCover = it.cloudCover?.percent
             )
         } ?: CurrentWrapper()
     }

data/src/main/java/breezyweather/data/DatabaseAdapter.kt

@@ -30,6 +30,8 @@ import org.breezyweather.unit.precipitation.Precipitation
 import org.breezyweather.unit.precipitation.Precipitation.Companion.micrometers
 import org.breezyweather.unit.pressure.Pressure
 import org.breezyweather.unit.pressure.Pressure.Companion.pascals
+import org.breezyweather.unit.ratio.Ratio
+import org.breezyweather.unit.ratio.Ratio.Companion.permille
 import org.breezyweather.unit.speed.Speed
 import org.breezyweather.unit.speed.Speed.Companion.centimetersPerSecond
 import org.breezyweather.unit.temperature.Temperature
@@ -122,3 +124,9 @@ object DurationColumnAdapter : ColumnAdapter<Duration, Long> {
 
     override fun encode(value: Duration): Long = value.inWholeNanoseconds
 }
+
+object RatioColumnAdapter : ColumnAdapter<Ratio, Long> {
+    override fun decode(databaseValue: Long): Ratio = databaseValue.permille
+
+    override fun encode(value: Ratio): Long = value.value
+}

data/src/main/java/breezyweather/data/weather/WeatherMapper.kt

@@ -47,6 +47,7 @@ import org.breezyweather.unit.pollen.PollenConcentration
 import org.breezyweather.unit.pollutant.PollutantConcentration
 import org.breezyweather.unit.precipitation.Precipitation
 import org.breezyweather.unit.pressure.Pressure
+import org.breezyweather.unit.ratio.Ratio
 import org.breezyweather.unit.speed.Speed
 import org.breezyweather.unit.temperature.Temperature
 import java.util.Date
@@ -82,11 +83,11 @@ object WeatherMapper {
         no2: PollutantConcentration?,
         o3: PollutantConcentration?,
         co: PollutantConcentration?,
-        relativeHumidity: Double?,
+        relativeHumidity: Ratio?,
         dewPoint: Temperature?,
         pressure: Pressure?,
         visibility: Distance?,
-        cloudCover: Long?,
+        cloudCover: Ratio?,
         ceiling: Distance?,
         dailyForecast: String?,
         hourlyForecast: String?,
@@ -130,7 +131,7 @@ object WeatherMapper {
             relativeHumidity,
             dewPoint,
             pressure,
-            cloudCover?.toInt(),
+            cloudCover,
             visibility,
             ceiling,
             dailyForecast,
@@ -153,11 +154,11 @@ object WeatherMapper {
         daytimeRainPrecipitation: Precipitation?,
         daytimeSnowPrecipitation: Precipitation?,
         daytimeIcePrecipitation: Precipitation?,
-        daytimeTotalPrecipitationProbability: Double?,
-        daytimeThunderstormPrecipitationProbability: Double?,
-        daytimeRainPrecipitationProbability: Double?,
-        daytimeSnowPrecipitationProbability: Double?,
-        daytimeIcePrecipitationProbability: Double?,
+        daytimeTotalPrecipitationProbability: Ratio?,
+        daytimeThunderstormPrecipitationProbability: Ratio?,
+        daytimeRainPrecipitationProbability: Ratio?,
+        daytimeSnowPrecipitationProbability: Ratio?,
+        daytimeIcePrecipitationProbability: Ratio?,
         daytimeTotalPrecipitationDuration: Duration?,
         daytimeThunderstormPrecipitationDuration: Duration?,
         daytimeRainPrecipitationDuration: Duration?,
@@ -179,11 +180,11 @@ object WeatherMapper {
         nighttimeRainPrecipitation: Precipitation?,
         nighttimeSnowPrecipitation: Precipitation?,
         nighttimeIcePrecipitation: Precipitation?,
-        nighttimeTotalPrecipitationProbability: Double?,
-        nighttimeThunderstormPrecipitationProbability: Double?,
-        nighttimeRainPrecipitationProbability: Double?,
-        nighttimeSnowPrecipitationProbability: Double?,
-        nighttimeIcePrecipitationProbability: Double?,
+        nighttimeTotalPrecipitationProbability: Ratio?,
+        nighttimeThunderstormPrecipitationProbability: Ratio?,
+        nighttimeRainPrecipitationProbability: Ratio?,
+        nighttimeSnowPrecipitationProbability: Ratio?,
+        nighttimeIcePrecipitationProbability: Ratio?,
         nighttimeTotalPrecipitationDuration: Duration?,
         nighttimeThunderstormPrecipitationDuration: Duration?,
         nighttimeRainPrecipitationDuration: Duration?,
@@ -230,18 +231,18 @@ object WeatherMapper {
         willow: PollenConcentration?,
         uvIndex: Double?,
         sunshineDuration: Duration?,
-        relativeHumidityAverage: Double?,
-        relativeHumidityMin: Double?,
-        relativeHumidityMax: Double?,
+        relativeHumidityAverage: Ratio?,
+        relativeHumidityMin: Ratio?,
+        relativeHumidityMax: Ratio?,
         dewpointAverage: Temperature?,
         dewpointMin: Temperature?,
         dewpointMax: Temperature?,
         pressureAverage: Pressure?,
         pressureMin: Pressure?,
         pressureMax: Pressure?,
-        cloudCoverAverage: Long?,
-        cloudCoverMin: Long?,
-        cloudCoverMax: Long?,
+        cloudCoverAverage: Ratio?,
+        cloudCoverMin: Ratio?,
+        cloudCoverMax: Ratio?,
         visibilityAverage: Distance?,
         visibilityMin: Distance?,
         visibilityMax: Distance?,
@@ -377,9 +378,9 @@ object WeatherMapper {
             max = pressureMax
         ),
         cloudCover = DailyCloudCover(
-            average = cloudCoverAverage?.toInt(),
-            min = cloudCoverMin?.toInt(),
-            max = cloudCoverMax?.toInt()
+            average = cloudCoverAverage,
+            min = cloudCoverMin,
+            max = cloudCoverMax
         ),
         visibility = DailyVisibility(
             average = visibilityAverage,
@@ -403,11 +404,11 @@ object WeatherMapper {
         rainPrecipitation: Precipitation?,
         snowPrecipitation: Precipitation?,
         icePrecipitation: Precipitation?,
-        totalPrecipitationProbability: Double?,
-        thunderstormPrecipitationProbability: Double?,
-        rainPrecipitationProbability: Double?,
-        snowPrecipitationProbability: Double?,
-        icePrecipitationProbability: Double?,
+        totalPrecipitationProbability: Ratio?,
+        thunderstormPrecipitationProbability: Ratio?,
+        rainPrecipitationProbability: Ratio?,
+        snowPrecipitationProbability: Ratio?,
+        icePrecipitationProbability: Ratio?,
         windDegree: Double?,
         windSpeed: Speed?,
         windGusts: Speed?,
@@ -418,10 +419,10 @@ object WeatherMapper {
         o3: PollutantConcentration?,
         co: PollutantConcentration?,
         uvIndex: Double?,
-        relativeHumidity: Double?,
+        relativeHumidity: Ratio?,
         dewPoint: Temperature?,
         pressure: Pressure?,
-        cloudCover: Long?,
+        cloudCover: Ratio?,
         visibility: Distance?,
     ): Hourly = Hourly(
         Date(date),
@@ -466,7 +467,7 @@ object WeatherMapper {
         relativeHumidity,
         dewPoint,
         pressure,
-        cloudCover?.toInt(),
+        cloudCover,
         visibility
     )
 

data/src/main/java/breezyweather/data/weather/WeatherRepository.kt

@@ -165,7 +165,7 @@ class WeatherRepository(
                 relativeHumidity = weather.current?.relativeHumidity,
                 dewPoint = weather.current?.dewPoint,
                 pressure = weather.current?.pressure,
-                cloudCover = weather.current?.cloudCover?.toLong(),
+                cloudCover = weather.current?.cloudCover,
                 visibility = weather.current?.visibility,
                 ceiling = weather.current?.ceiling,
                 dailyForecast = weather.current?.dailyForecast,
@@ -311,9 +311,9 @@ class WeatherRepository(
                     pressureMin = daily.pressure?.min,
                     pressureMax = daily.pressure?.max,
 
-                    cloudCoverAverage = daily.cloudCover?.average?.toLong(),
-                    cloudCoverMin = daily.cloudCover?.min?.toLong(),
-                    cloudCoverMax = daily.cloudCover?.max?.toLong(),
+                    cloudCoverAverage = daily.cloudCover?.average,
+                    cloudCoverMin = daily.cloudCover?.min,
+                    cloudCoverMax = daily.cloudCover?.max,
 
                     visibilityAverage = daily.visibility?.average,
                     visibilityMin = daily.visibility?.min,
@@ -368,7 +368,7 @@ class WeatherRepository(
                     relativeHumidity = hourly.relativeHumidity,
                     dewPoint = hourly.dewPoint,
                     pressure = hourly.pressure,
-                    cloudCover = hourly.cloudCover?.toLong(),
+                    cloudCover = hourly.cloudCover,
                     visibility = hourly.visibility
                 )
             }

data/src/main/sqldelight/breezyweather/data/dailys.sq

@@ -5,6 +5,7 @@ import org.breezyweather.unit.pollen.PollenConcentration;
 import org.breezyweather.unit.pollutant.PollutantConcentration;
 import org.breezyweather.unit.precipitation.Precipitation;
 import org.breezyweather.unit.pressure.Pressure;
+import org.breezyweather.unit.ratio.Ratio;
 import org.breezyweather.unit.speed.Speed;
 import org.breezyweather.unit.temperature.Temperature;
 
@@ -31,11 +32,11 @@ CREATE TABLE dailys(
     daytime_snow_precipitation INTEGER AS Precipitation,
     daytime_ice_precipitation INTEGER AS Precipitation,
 
-    daytime_total_precipitation_probability REAL,
-    daytime_thunderstorm_precipitation_probability REAL,
-    daytime_rain_precipitation_probability REAL,
-    daytime_snow_precipitation_probability REAL,
-    daytime_ice_precipitation_probability REAL,
+    daytime_total_precipitation_probability INTEGER AS Ratio,
+    daytime_thunderstorm_precipitation_probability INTEGER AS Ratio,
+    daytime_rain_precipitation_probability INTEGER AS Ratio,
+    daytime_snow_precipitation_probability INTEGER AS Ratio,
+    daytime_ice_precipitation_probability INTEGER AS Ratio,
 
     daytime_total_precipitation_duration INTEGER AS Duration,
     daytime_thunderstorm_precipitation_duration INTEGER AS Duration,
@@ -64,11 +65,11 @@ CREATE TABLE dailys(
     nighttime_snow_precipitation INTEGER AS Precipitation,
     nighttime_ice_precipitation INTEGER AS Precipitation,
 
-    nighttime_total_precipitation_probability REAL,
-    nighttime_thunderstorm_precipitation_probability REAL,
-    nighttime_rain_precipitation_probability REAL,
-    nighttime_snow_precipitation_probability REAL,
-    nighttime_ice_precipitation_probability REAL,
+    nighttime_total_precipitation_probability INTEGER AS Ratio,
+    nighttime_thunderstorm_precipitation_probability INTEGER AS Ratio,
+    nighttime_rain_precipitation_probability INTEGER AS Ratio,
+    nighttime_snow_precipitation_probability INTEGER AS Ratio,
+    nighttime_ice_precipitation_probability INTEGER AS Ratio,
 
     nighttime_total_precipitation_duration INTEGER AS Duration,
     nighttime_thunderstorm_precipitation_duration INTEGER AS Duration,
@@ -135,9 +136,9 @@ CREATE TABLE dailys(
     sunshine_duration INTEGER AS Duration,
 
     -- relative humidity
-    relative_humidity_average REAL,
-    relative_humidity_min REAL,
-    relative_humidity_max REAL,
+    relative_humidity_average INTEGER AS Ratio,
+    relative_humidity_min INTEGER AS Ratio,
+    relative_humidity_max INTEGER AS Ratio,
 
     -- dewpoint
     dewpoint_average INTEGER AS Temperature,
@@ -150,9 +151,9 @@ CREATE TABLE dailys(
     pressure_max INTEGER AS Pressure,
 
     -- cloud cover
-    cloud_cover_average INTEGER,
-    cloud_cover_min INTEGER,
-    cloud_cover_max INTEGER,
+    cloud_cover_average INTEGER AS Ratio,
+    cloud_cover_min INTEGER AS Ratio,
+    cloud_cover_max INTEGER AS Ratio,
 
     -- visibility
     visibility_average INTEGER AS Distance,

data/src/main/sqldelight/breezyweather/data/hourlys.sq

@@ -4,6 +4,7 @@ import org.breezyweather.unit.distance.Distance;
 import org.breezyweather.unit.pollutant.PollutantConcentration;
 import org.breezyweather.unit.precipitation.Precipitation;
 import org.breezyweather.unit.pressure.Pressure;
+import org.breezyweather.unit.ratio.Ratio;
 import org.breezyweather.unit.speed.Speed;
 import org.breezyweather.unit.temperature.Temperature;
 
@@ -29,11 +30,11 @@ CREATE TABLE hourlys(
     snow_precipitation INTEGER AS Precipitation,
     ice_precipitation INTEGER AS Precipitation,
 
-    total_precipitation_probability REAL,
-    thunderstorm_precipitation_probability REAL,
-    rain_precipitation_probability REAL,
-    snow_precipitation_probability REAL,
-    ice_precipitation_probability REAL,
+    total_precipitation_probability INTEGER AS Ratio,
+    thunderstorm_precipitation_probability INTEGER AS Ratio,
+    rain_precipitation_probability INTEGER AS Ratio,
+    snow_precipitation_probability INTEGER AS Ratio,
+    ice_precipitation_probability INTEGER AS Ratio,
 
     wind_degree REAL,
     wind_speed INTEGER AS Speed,
@@ -50,10 +51,10 @@ CREATE TABLE hourlys(
     uvIndex REAL,
 
     -- details
-    relative_humidity REAL,
+    relative_humidity INTEGER AS Ratio,
     dew_point INTEGER AS Temperature,
     pressure INTEGER AS Pressure,
-    cloud_cover INTEGER,
+    cloud_cover INTEGER AS Ratio,
     visibility INTEGER AS Distance,
 
     UNIQUE(location_formatted_id, date) ON CONFLICT REPLACE,

data/src/main/sqldelight/breezyweather/data/weathers.sq

@@ -2,6 +2,7 @@ import breezyweather.domain.weather.reference.WeatherCode;
 import org.breezyweather.unit.distance.Distance;
 import org.breezyweather.unit.pollutant.PollutantConcentration;
 import org.breezyweather.unit.pressure.Pressure;
+import org.breezyweather.unit.ratio.Ratio;
 import org.breezyweather.unit.speed.Speed;
 import org.breezyweather.unit.temperature.Temperature;
 
@@ -44,11 +45,11 @@ CREATE TABLE weathers(
     o3 INTEGER AS PollutantConcentration,
     co INTEGER AS PollutantConcentration,
 
-    relative_humidity REAL,
+    relative_humidity INTEGER AS Ratio,
     dew_point INTEGER AS Temperature,
     pressure INTEGER AS Pressure,
     visibility INTEGER AS Distance,
-    cloud_cover INTEGER,
+    cloud_cover INTEGER AS Ratio,
     ceiling INTEGER AS Distance,
     daily_forecast TEXT,
     hourly_forecast TEXT,

data/src/main/sqldelight/breezyweather/migrations/25.sqm

@@ -0,0 +1,123 @@
+ALTER TABLE dailys
+DROP COLUMN daytime_total_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN daytime_total_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN daytime_thunderstorm_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN daytime_thunderstorm_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN daytime_rain_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN daytime_rain_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN daytime_snow_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN daytime_snow_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN daytime_ice_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN daytime_ice_precipitation_probability INTEGER;
+
+
+ALTER TABLE dailys
+DROP COLUMN nighttime_total_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN nighttime_total_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN nighttime_thunderstorm_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN nighttime_thunderstorm_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN nighttime_rain_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN nighttime_rain_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN nighttime_snow_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN nighttime_snow_precipitation_probability INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN nighttime_ice_precipitation_probability;
+
+ALTER TABLE dailys
+ADD COLUMN nighttime_ice_precipitation_probability INTEGER;
+
+
+ALTER TABLE dailys
+DROP COLUMN relative_humidity_average;
+
+ALTER TABLE dailys
+ADD COLUMN relative_humidity_average INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN relative_humidity_min;
+
+ALTER TABLE dailys
+ADD COLUMN relative_humidity_min INTEGER;
+
+ALTER TABLE dailys
+DROP COLUMN relative_humidity_max;
+
+ALTER TABLE dailys
+ADD COLUMN relative_humidity_max INTEGER;
+
+
+ALTER TABLE hourlys
+DROP COLUMN total_precipitation_probability;
+
+ALTER TABLE hourlys
+ADD COLUMN total_precipitation_probability INTEGER;
+
+ALTER TABLE hourlys
+DROP COLUMN thunderstorm_precipitation_probability;
+
+ALTER TABLE hourlys
+ADD COLUMN thunderstorm_precipitation_probability INTEGER;
+
+ALTER TABLE hourlys
+DROP COLUMN rain_precipitation_probability;
+
+ALTER TABLE hourlys
+ADD COLUMN rain_precipitation_probability INTEGER;
+
+ALTER TABLE hourlys
+DROP COLUMN snow_precipitation_probability;
+
+ALTER TABLE hourlys
+ADD COLUMN snow_precipitation_probability INTEGER;
+
+ALTER TABLE hourlys
+DROP COLUMN ice_precipitation_probability;
+
+ALTER TABLE hourlys
+ADD COLUMN ice_precipitation_probability INTEGER;
+
+ALTER TABLE hourlys
+DROP COLUMN relative_humidity;
+
+ALTER TABLE hourlys
+ADD COLUMN relative_humidity INTEGER;
+
+
+ALTER TABLE weathers
+DROP COLUMN relative_humidity;
+
+ALTER TABLE weathers
+ADD COLUMN relative_humidity INTEGER;

domain/src/main/java/breezyweather/domain/weather/model/Current.kt

@@ -20,13 +20,11 @@ import breezyweather.domain.weather.reference.WeatherCode
 import breezyweather.domain.weather.wrappers.CurrentWrapper
 import org.breezyweather.unit.distance.Distance
 import org.breezyweather.unit.pressure.Pressure
+import org.breezyweather.unit.ratio.Ratio
 import java.io.Serializable
 
 /**
  * Current.
- *
- * default unit
- * [.relativeHumidity] : [RelativeHumidityUnit.PERCENT]
  */
 data class Current(
     val weatherText: String? = null,
@@ -35,14 +33,14 @@ data class Current(
     val wind: Wind? = null,
     val uV: UV? = null,
     val airQuality: AirQuality? = null,
-    val relativeHumidity: Double? = null,
+    val relativeHumidity: Ratio? = null,
     val dewPoint: org.breezyweather.unit.temperature.Temperature? = null,
     /**
      * Pressure at sea level
      * Use Kotlin extensions to initialize this value, like 1013.25.hectopascals
      */
     val pressure: Pressure? = null,
-    val cloudCover: Int? = null,
+    val cloudCover: Ratio? = null,
     val visibility: Distance? = null,
     val ceiling: Distance? = null,
     val dailyForecast: String? = null,

domain/src/main/java/breezyweather/domain/weather/model/DailyCloudCover.kt

@@ -16,9 +16,11 @@
 
 package breezyweather.domain.weather.model
 
+import org.breezyweather.unit.ratio.Ratio
+
 data class DailyCloudCover(
-    override val average: Int? = null,
-    override val max: Int? = null,
-    override val min: Int? = null,
+    override val average: Ratio? = null,
+    override val max: Ratio? = null,
+    override val min: Ratio? = null,
     override val summary: String? = null,
-) : DailyAvgMinMax<Int>
+) : DailyAvgMinMax<Ratio>

domain/src/main/java/breezyweather/domain/weather/model/DailyRelativeHumidity.kt

@@ -16,9 +16,11 @@
 
 package breezyweather.domain.weather.model
 
+import org.breezyweather.unit.ratio.Ratio
+
 data class DailyRelativeHumidity(
-    override val average: Double? = null,
-    override val max: Double? = null,
-    override val min: Double? = null,
+    override val average: Ratio? = null,
+    override val max: Ratio? = null,
+    override val min: Ratio? = null,
     override val summary: String? = null,
-) : DailyAvgMinMax<Double>
+) : DailyAvgMinMax<Ratio>

domain/src/main/java/breezyweather/domain/weather/model/Hourly.kt

@@ -20,6 +20,7 @@ import breezyweather.domain.weather.reference.WeatherCode
 import breezyweather.domain.weather.wrappers.HourlyWrapper
 import org.breezyweather.unit.distance.Distance
 import org.breezyweather.unit.pressure.Pressure
+import org.breezyweather.unit.ratio.Ratio
 import java.io.Serializable
 import java.util.Date
 
@@ -37,14 +38,14 @@ data class Hourly(
     val wind: Wind? = null,
     val airQuality: AirQuality? = null,
     val uV: UV? = null,
-    val relativeHumidity: Double? = null,
+    val relativeHumidity: Ratio? = null,
     val dewPoint: org.breezyweather.unit.temperature.Temperature? = null,
     /**
      * Pressure at sea level
      * Use Kotlin extensions to initialize this value, like 1013.25.hectopascals
      */
     val pressure: Pressure? = null,
-    val cloudCover: Int? = null,
+    val cloudCover: Ratio? = null,
     val visibility: Distance? = null,
 ) : Serializable {
 

domain/src/main/java/breezyweather/domain/weather/model/PrecipitationProbability.kt

@@ -16,21 +16,20 @@
 
 package breezyweather.domain.weather.model
 
+import org.breezyweather.unit.ratio.Ratio
 import java.io.Serializable
 
 /**
  * Precipitation duration.
- *
- * default unit : [ProbabilityUnit.PERCENT]
  */
 data class PrecipitationProbability(
-    val total: Double? = null,
-    val thunderstorm: Double? = null,
-    val rain: Double? = null,
-    val snow: Double? = null,
-    val ice: Double? = null,
+    val total: Ratio? = null,
+    val thunderstorm: Ratio? = null,
+    val rain: Ratio? = null,
+    val snow: Ratio? = null,
+    val ice: Ratio? = null,
 ) : Serializable {
 
     val isValid: Boolean
-        get() = total != null && total > 0
+        get() = total != null && total.value > 0
 }

domain/src/main/java/breezyweather/domain/weather/wrappers/CurrentWrapper.kt

@@ -22,6 +22,7 @@ import breezyweather.domain.weather.model.Wind
 import breezyweather.domain.weather.reference.WeatherCode
 import org.breezyweather.unit.distance.Distance
 import org.breezyweather.unit.pressure.Pressure
+import org.breezyweather.unit.ratio.Ratio
 import org.breezyweather.unit.temperature.Temperature
 
 /**
@@ -33,14 +34,14 @@ data class CurrentWrapper(
     val temperature: TemperatureWrapper? = null,
     val wind: Wind? = null,
     val uV: UV? = null,
-    val relativeHumidity: Double? = null,
+    val relativeHumidity: Ratio? = null,
     val dewPoint: Temperature? = null,
     /**
      * Pressure at sea level
      * Use Kotlin extensions to initialize this value, like 1013.25.hectopascals
      */
     val pressure: Pressure? = null,
-    val cloudCover: Int? = null,
+    val cloudCover: Ratio? = null,
     val visibility: Distance? = null,
     val ceiling: Distance? = null,
     val dailyForecast: String? = null,

domain/src/main/java/breezyweather/domain/weather/wrappers/HourlyWrapper.kt

@@ -25,6 +25,7 @@ import breezyweather.domain.weather.model.Wind
 import breezyweather.domain.weather.reference.WeatherCode
 import org.breezyweather.unit.distance.Distance
 import org.breezyweather.unit.pressure.Pressure
+import org.breezyweather.unit.ratio.Ratio
 import org.breezyweather.unit.temperature.Temperature
 import java.util.Date
 import kotlin.time.Duration
@@ -42,14 +43,14 @@ data class HourlyWrapper(
     val precipitationProbability: PrecipitationProbability? = null,
     val wind: Wind? = null,
     val uV: UV? = null,
-    val relativeHumidity: Double? = null,
+    val relativeHumidity: Ratio? = null,
     val dewPoint: Temperature? = null,
     /**
      * Pressure at sea level
      * Use Kotlin extensions to initialize this value, like 1013.25.hectopascals
      */
     val pressure: Pressure? = null,
-    val cloudCover: Int? = null,
+    val cloudCover: Ratio? = null,
     val visibility: Distance? = null,
     /**
      * Duration of sunshine, NOT duration of daylight

weather-unit/README.md

@@ -1,6 +1,7 @@
 # Breezy Weather unit conversion and formatting library
 
 Android library to handle:
+
 - Unit conversion
 - Formatting in various languages, including on devices without ICU support or with missing CLDR data, with a simplified backport (no handling of plural and non-nominative rules)
 
@@ -10,7 +11,6 @@ Some precision may be lost during conversions.
 
 Remains to do:
 
-- Percentage formatting
 - Add missing non-English Android translations (for the units we use in Breezy Weather)
 - Plus and minus operations
 - Parse from string
@@ -33,6 +33,12 @@ Android translations are only in English at the moment.
 
 Supports temperature deviations conversions (such as degree days).
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
 
 ## Distance
 
@@ -46,6 +52,12 @@ Android translations are only in English at the moment.
 | Nautical mile | Android >= 11     | Android 7 to 10 | Android < 7          |
 | Foot          | Android >= 11     | Android 7 to 10 | Android < 7          |
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
 
 ## Speed
 
@@ -63,6 +75,12 @@ Android translations are only in English at the moment.
 
 ¹ Not an unit, but a scale, so during conversions, uses the starting value in meters per second of the scale level
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
 
 ## Precipitation
 
@@ -84,6 +102,12 @@ Android translations are only in English at the moment.
 | Inch per hour                   | Android >= 11     | Android 8 to 10 | Android < 8          |
 | Liter per square meter per hour | ❌                 | ❌               | ✅                    |
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
 
 ## Pressure
 
@@ -96,6 +120,12 @@ Android translations are only in English at the moment.
 | Millimeter of mercury | Android >= 11     | Android 7 to 10 | Android < 7          |
 | Inch of mercury       | Android >= 11     | Android 7 to 10 | Android < 7          |
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
 
 ## Air pollutant concentration
 
@@ -106,6 +136,12 @@ Android translations are only in English at the moment.
 | Microgram per cubic meter | Android >= 11     | Android 8 to 10 | Android < 8          |
 | Milligram per cubic meter | Android >= 11     | Android 8 to 10 | Android < 8          |
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
 
 ## Pollen concentration
 
@@ -115,6 +151,12 @@ Android translations are only in English at the moment.
 |-----------------|-------------------|-----------------|----------------------|
 | Per cubic meter | ❌                 | ❌               | ✅                    |
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
 
 ## Duration
 
@@ -131,6 +173,29 @@ Android translations are only in English at the moment.
 * ¹ `NumberFormatter` supports only single duration, and will not be used when needing a formatting like `1 hour and 30 minutes`.
 * ² Only English translations are provided.
 
+Supported widths for Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ✅    |
+
+
+## Ratio
+
+| Unit     | `NumberFormatter`¹ | `NumberFormat` | Android translations |
+|----------|--------------------|----------------|----------------------|
+| Permille | Android >= 11      | ❌              | Android < 11¹        |
+| Percent  | Android >= 11      | Android < 11   | ❌                    |
+| Fraction | Android >= 11      | Android < 11   | N/A                  |
+
+* ¹ Only English translations are provided.
+
+Supported widths for `NumberFormat` and Android translations:
+
+| Narrow | Short | Long |
+|--------|-------|------|
+| ❌      | ✅     | ❌    |
+
 
 # License
 

weather-unit/src/main/java/org/breezyweather/unit/distance/Distance.kt

@@ -169,7 +169,7 @@ value class Distance internal constructor(
      * No more than [unit.decimals.max] decimals will be shown, even if a larger number is requested.
      *
      * @return the value of distance in the specified [unit] followed by that unit abbreviated name:
-     * `pa`, `hpa`, `mb`, `atm`, `mmhg`, `inhg`.
+     * `m`, `km`, `mi`, `nmi`, `ft`.
      *
      * @throws IllegalArgumentException if [decimals] is less than zero.
      */
@@ -203,8 +203,6 @@ fun Long.toDistance(unit: DistanceUnit): Distance {
 /**
  * Returns a [Distance] equal to this [Double] number of the specified [unit].
  *
- * Depending on its magnitude, the value is rounded to an integer number of nanoseconds or milliseconds.
- *
  * @throws IllegalArgumentException if this `Double` value is `NaN`.
  */
 fun Double.toDistance(unit: DistanceUnit): Distance {

weather-unit/src/main/java/org/breezyweather/unit/pollen/PollenConcentration.kt

@@ -61,7 +61,7 @@ value class PollenConcentration internal constructor(
          * The following format is accepted:
          *
          * - The format of string returned by the default [PollenConcentration.toString] and `toString` in a specific unit,
-         *   e.g. `1013.25hpa` or `29.95inhg`.
+         *   e.g. `24pcum`.
          *
          * @throws IllegalArgumentException if the string doesn't represent a pollen concentration in any of the supported formats.
          */
@@ -78,7 +78,7 @@ value class PollenConcentration internal constructor(
          * The following formats is accepted:
          *
          * - The format of string returned by the default [PollenConcentration.toString] and `toString` in a specific unit,
-         *   e.g. `1013.25hpa` or `29.95inhg`.
+         *   e.g. `24pcum`.
          */
         fun parseOrNull(value: String): PollenConcentration? = try {
             parsePollenConcentration(value)
@@ -125,7 +125,7 @@ value class PollenConcentration internal constructor(
      * No more than [unit.decimals.max] decimals will be shown, even if a larger number is requested.
      *
      * @return the value of pollen concentration in the specified [unit] followed by that unit abbreviated name:
-     * `pa`, `hpa`, `mb`, `atm`, `mmhg`, `inhg`.
+     * `pcum`.
      *
      * @throws IllegalArgumentException if [decimals] is less than zero.
      */
@@ -151,8 +151,6 @@ fun Long.toPollenConcentration(unit: PollenConcentrationUnit): PollenConcentrati
 /**
  * Returns a [PollenConcentration] equal to this [Double] number of the specified [unit].
  *
- * Depending on its magnitude, the value is rounded to an integer number of nanoseconds or milliseconds.
- *
  * @throws IllegalArgumentException if this `Double` value is `NaN`.
  */
 fun Double.toPollenConcentration(unit: PollenConcentrationUnit): PollenConcentration {

weather-unit/src/main/java/org/breezyweather/unit/pollutant/PollutantConcentration.kt

@@ -1,12 +1,9 @@
 package org.breezyweather.unit.pollutant
 
-import android.content.Context
 import org.breezyweather.unit.WeatherValue
 import org.breezyweather.unit.formatting.UnitDecimals.Companion.formatToExactDecimals
-import org.breezyweather.unit.formatting.UnitWidth
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.microgramsPerCubicMeter
 import org.breezyweather.unit.pollutant.PollutantConcentration.Companion.milligramsPerCubicMeter
-import java.util.Locale
 import kotlin.math.roundToLong
 
 /*
@@ -74,7 +71,7 @@ value class PollutantConcentration internal constructor(
          * The following format is accepted:
          *
          * - The format of string returned by the default [PollutantConcentration.toString] and `toString` in a specific unit,
-         *   e.g. `1013.25hpa` or `29.95inhg`.
+         *   e.g. `10microgpcum` or `2mgpcum`.
          *
          * @throws IllegalArgumentException if the string doesn't represent a pollutant concentration in any of the supported formats.
          */
@@ -91,7 +88,7 @@ value class PollutantConcentration internal constructor(
          * The following formats is accepted:
          *
          * - The format of string returned by the default [PollutantConcentration.toString] and `toString` in a specific unit,
-         *   e.g. `1013.25hpa` or `29.95inhg`.
+         *   e.g. `10microgpcum` or `2mgpcum`.
          */
         fun parseOrNull(value: String): PollutantConcentration? = try {
             parsePollutantConcentration(value)
@@ -138,7 +135,7 @@ value class PollutantConcentration internal constructor(
      * No more than [unit.decimals.max] decimals will be shown, even if a larger number is requested.
      *
      * @return the value of pollutant concentration in the specified [unit] followed by that unit abbreviated name:
-     * `pa`, `hpa`, `mb`, `atm`, `mmhg`, `inhg`.
+     * `microgpcum`, `mgpcum`.
      *
      * @throws IllegalArgumentException if [decimals] is less than zero.
      */
@@ -170,8 +167,6 @@ fun Long.toPollutantConcentration(unit: PollutantConcentrationUnit): PollutantCo
 /**
  * Returns a [PollutantConcentration] equal to this [Double] number of the specified [unit].
  *
- * Depending on its magnitude, the value is rounded to an integer number of nanoseconds or milliseconds.
- *
  * @throws IllegalArgumentException if this `Double` value is `NaN`.
  */
 fun Double.toPollutantConcentration(unit: PollutantConcentrationUnit): PollutantConcentration {

weather-unit/src/main/java/org/breezyweather/unit/precipitation/Precipitation.kt

@@ -105,7 +105,7 @@ value class Precipitation internal constructor(
          * The following format is accepted:
          *
          * - The format of string returned by the default [Precipitation.toString] and `toString` in a specific unit,
-         *   e.g. `50000m` or `30.5km`.
+         *   e.g. `5mm` or `1cm`.
          *
          * @throws IllegalArgumentException if the string doesn't represent a precipitation in any of the supported formats.
          */
@@ -122,7 +122,7 @@ value class Precipitation internal constructor(
          * The following formats is accepted:
          *
          * - The format of string returned by the default [Precipitation.toString] and `toString` in a specific unit,
-         *   e.g. `50000m` or `30.5km`.
+         *   e.g. `5mm` or `1cm`.
          */
         fun parseOrNull(value: String): Precipitation? = try {
             parsePrecipitation(value)
@@ -181,7 +181,7 @@ value class Precipitation internal constructor(
      * No more than [unit.decimals.max] decimals will be shown, even if a larger number is requested.
      *
      * @return the value of precipitation in the specified [unit] followed by that unit abbreviated name:
-     * `pa`, `hpa`, `mb`, `atm`, `mmhg`, `inhg`.
+     * `microm`, `mm`, `cm`, `in`, `lpsqm`.
      *
      * @throws IllegalArgumentException if [decimals] is less than zero.
      */
@@ -317,8 +317,6 @@ fun Long.toPrecipitation(unit: PrecipitationUnit): Precipitation {
 /**
  * Returns a [Precipitation] equal to this [Double] number of the specified [unit].
  *
- * Depending on its magnitude, the value is rounded to an integer number of nanoseconds or milliseconds.
- *
  * @throws IllegalArgumentException if this `Double` value is `NaN`.
  */
 fun Double.toPrecipitation(unit: PrecipitationUnit): Precipitation {

weather-unit/src/main/java/org/breezyweather/unit/pressure/Pressure.kt

@@ -228,8 +228,6 @@ fun Long.toPressure(unit: PressureUnit): Pressure {
 /**
  * Returns a [Pressure] equal to this [Double] number of the specified [unit].
  *
- * Depending on its magnitude, the value is rounded to an integer number of nanoseconds or milliseconds.
- *
  * @throws IllegalArgumentException if this `Double` value is `NaN`.
  */
 fun Double.toPressure(unit: PressureUnit): Pressure {

weather-unit/src/main/java/org/breezyweather/unit/ratio/Ratio.kt

@@ -0,0 +1,194 @@
+package org.breezyweather.unit.ratio
+
+import org.breezyweather.unit.WeatherValue
+import org.breezyweather.unit.formatting.UnitDecimals.Companion.formatToExactDecimals
+import org.breezyweather.unit.ratio.Ratio.Companion.fraction
+import org.breezyweather.unit.ratio.Ratio.Companion.percent
+import org.breezyweather.unit.ratio.Ratio.Companion.permille
+import kotlin.math.roundToLong
+
+/*
+ * This file is part of Breezy Weather.
+ *
+ * Breezy Weather is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, version 3 of the License.
+ *
+ * Breezy Weather is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Breezy Weather. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Represents the ratio.
+ *
+ * To construct a ratio, use either the extension function [toRatio],
+ * or the extension properties [permille], [percent] and [fraction],
+ * available on [Int], [Long], and [Double] numeric types.
+ *
+ * To get the value of this ratio expressed in a particular [ratio unit][RatioUnit]
+ * use the functions [toInt], [toLong], and [toDouble]
+ * or the properties [inPermille], [inPercent] and [inFraction].
+ */
+@JvmInline
+value class Ratio internal constructor(
+    private val rawValue: Long,
+) : Comparable<Ratio>, WeatherValue<RatioUnit> {
+    val value: Long get() = rawValue
+    private val storageUnit get() = RatioUnit.PERMILLE
+
+    companion object {
+        /** Returns a [Ratio] equal to this [Int] number of permille. */
+        inline val Int.permille: Ratio get() = toRatio(RatioUnit.PERMILLE)
+
+        /** Returns a [Ratio] equal to this [Long] number of permille. */
+        inline val Long.permille: Ratio get() = toRatio(RatioUnit.PERMILLE)
+
+        /** Returns a [Ratio] equal to this [Double] number of permille. */
+        inline val Double.permille: Ratio get() = toRatio(RatioUnit.PERMILLE)
+
+        /** Returns a [Ratio] equal to this [Int] number of percent. */
+        inline val Int.percent: Ratio get() = toRatio(RatioUnit.PERCENT)
+
+        /** Returns a [Ratio] equal to this [Long] number of percent. */
+        inline val Long.percent: Ratio get() = toRatio(RatioUnit.PERCENT)
+
+        /** Returns a [Ratio] equal to this [Double] number of percent. */
+        inline val Double.percent: Ratio get() = toRatio(RatioUnit.PERCENT)
+
+        /** Returns a [Ratio] equal to this [Int] number of fraction. */
+        inline val Int.fraction: Ratio get() = toRatio(RatioUnit.FRACTION)
+
+        /** Returns a [Ratio] equal to this [Long] number of fraction. */
+        inline val Long.fraction: Ratio get() = toRatio(RatioUnit.FRACTION)
+
+        /** Returns a [Ratio] equal to this [Double] number of percent. */
+        inline val Double.fraction: Ratio get() = toRatio(RatioUnit.FRACTION)
+
+        /**
+         * Parses a string that represents a ratio and returns the parsed [Ratio] value.
+         *
+         * The following format is accepted:
+         *
+         * - The format of string returned by the default [Ratio.toString] and `toString` in a specific unit,
+         *   e.g. `30percent` or `542permille`.
+         *
+         * @throws IllegalArgumentException if the string doesn't represent a ratio in any of the supported formats.
+         */
+        fun parse(value: String): Ratio = try {
+            parseRatio(value)
+        } catch (e: IllegalArgumentException) {
+            throw IllegalArgumentException("Invalid ratio string format: '$value'.", e)
+        }
+
+        /**
+         * Parses a string that represents a ratio and returns the parsed [Ratio] value,
+         * or `null` if the string doesn't represent a ratio in any of the supported formats.
+         *
+         * The following formats is accepted:
+         *
+         * - The format of string returned by the default [Ratio.toString] and `toString` in a specific unit,
+         *   e.g. `30percent` or `542permille`.
+         */
+        fun parseOrNull(value: String): Ratio? = try {
+            parseRatio(value)
+        } catch (e: IllegalArgumentException) {
+            null
+        }
+    }
+
+    override fun compareTo(other: Ratio): Int {
+        return this.rawValue.compareTo(other.rawValue)
+    }
+
+    // conversion to units
+
+    /**
+     * Returns the value of this ratio expressed as a [Double] number of the specified [unit].
+     *
+     * The operation may involve rounding when the result cannot be represented exactly with a [Double] number.
+     */
+    override fun toDouble(unit: RatioUnit): Double {
+        return convertRatioUnit(value.toDouble(), storageUnit, unit)
+    }
+
+    /** The value of this ratio expressed as a [Double] number of permille. */
+    val inPermille: Double
+        get() = toDouble(RatioUnit.PERMILLE)
+
+    /** The value of this ratio expressed as a [Double] number of percent. */
+    val inPercent: Double
+        get() = toDouble(RatioUnit.PERCENT)
+
+    /** The value of this ratio expressed as a [Double] number of fraction. */
+    val inFraction: Double
+        get() = toDouble(RatioUnit.FRACTION)
+
+    /**
+     * Returns a string representation of this ratio value
+     */
+    override fun toString(): String {
+        return toString(storageUnit)
+    }
+
+    /**
+     * Returns a string representation of this ratio value expressed in the given [unit]
+     * and formatted with the specified [decimals] number of digits after decimal point.
+     *
+     * @param decimals the number of digits after decimal point to show. The value must be non-negative.
+     * No more than [unit.decimals.max] decimals will be shown, even if a larger number is requested.
+     *
+     * @return the value of ratio in the specified [unit] followed by that unit abbreviated name:
+     * `fraction`, `percent`, `permille`.
+     *
+     * @throws IllegalArgumentException if [decimals] is less than zero.
+     */
+    fun toString(unit: RatioUnit, decimals: Int = unit.decimals.short): String {
+        require(decimals >= 0) { "decimals must be not negative, but was $decimals" }
+        return formatToExactDecimals(toDouble(unit), decimals.coerceAtMost(unit.decimals.long)) + unit.id
+    }
+
+    /**
+     * Return null if the value is not between the provided range, otherwise this value
+     */
+    fun toValidRangeOrNull(range: IntRange = 0..1000): Ratio? {
+        return takeIf { rawValue in range }
+    }
+}
+
+// constructing from number of units
+// extension functions
+
+/** Returns a [Ratio] equal to this [Int] number of the specified [unit]. */
+fun Int.toRatio(unit: RatioUnit): Ratio {
+    return toLong().toRatio(unit)
+}
+
+/** Returns a [Ratio] equal to this [Long] number of the specified [unit]. */
+fun Long.toRatio(unit: RatioUnit): Ratio {
+    return ratioOf(convertRatioUnit(this.toDouble(), unit, RatioUnit.PERMILLE).toLong())
+}
+
+/**
+ * Returns a [Ratio] equal to this [Double] number of the specified [unit].
+ *
+ * @throws IllegalArgumentException if this `Double` value is `NaN`.
+ */
+fun Double.toRatio(unit: RatioUnit): Ratio {
+    val valueInPermille = convertRatioUnit(this, unit, RatioUnit.PERMILLE)
+    require(!valueInPermille.isNaN()) { "Ratio value cannot be NaN." }
+    return ratioOf(valueInPermille.roundToLong())
+}
+
+private fun parseRatio(value: String): Ratio {
+    var length = value.length
+    if (length == 0) throw IllegalArgumentException("The string is empty")
+
+    TODO()
+}
+
+private fun ratioOf(normalPermille: Long) = Ratio(normalPermille)

weather-unit/src/main/java/org/breezyweather/unit/ratio/RatioUnit.kt

@@ -0,0 +1,156 @@
+/*
+ * This file is part of Breezy Weather.
+ *
+ * Breezy Weather is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, version 3 of the License.
+ *
+ * Breezy Weather is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Breezy Weather. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.breezyweather.unit.ratio
+
+import android.content.Context
+import android.icu.text.NumberFormat
+import android.icu.util.MeasureUnit
+import android.os.Build
+import org.breezyweather.unit.R
+import org.breezyweather.unit.WeatherUnit
+import org.breezyweather.unit.formatting.UnitDecimals
+import org.breezyweather.unit.formatting.UnitTranslation
+import org.breezyweather.unit.formatting.UnitWidth
+import org.breezyweather.unit.formatting.format
+import org.breezyweather.unit.formatting.formatWithNumberFormatter
+import java.util.Locale
+
+enum class RatioUnit(
+    override val id: String,
+    override val displayName: UnitTranslation,
+    override val nominative: UnitTranslation,
+    override val per: UnitTranslation? = null,
+    override val measureUnit: MeasureUnit?,
+    override val perMeasureUnit: MeasureUnit? = null,
+    val convertFromReference: (Double) -> Double,
+    val convertToReference: (Double) -> Double,
+    override val decimals: UnitDecimals,
+    val chartStep: Double,
+) : WeatherUnit {
+
+    PERMILLE(
+        id = "permille",
+        displayName = UnitTranslation(R.string.ratio_permille_display_name_short),
+        nominative = UnitTranslation(R.string.ratio_permille_nominative_short),
+        measureUnit = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) MeasureUnit.PERMILLE else null,
+        convertFromReference = { valueInDefaultUnit -> valueInDefaultUnit },
+        convertToReference = { valueInThisUnit -> valueInThisUnit },
+        decimals = UnitDecimals(0),
+        chartStep = 200.0
+    ),
+    PERCENT(
+        id = "percent",
+        displayName = UnitTranslation(R.string.ratio_percent_display_name_short),
+        nominative = UnitTranslation(R.string.ratio_percent_nominative_short),
+        measureUnit = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) MeasureUnit.PERCENT else null,
+        convertFromReference = { valueInDefaultUnit -> valueInDefaultUnit.div(10.0) },
+        convertToReference = { valueInThisUnit -> valueInThisUnit.times(10.0) },
+        decimals = UnitDecimals(narrow = 0, short = 1, long = 1),
+        chartStep = 20.0
+    ),
+    FRACTION(
+        id = "fraction",
+        displayName = UnitTranslation(R.string.ratio_fraction_display_name_short),
+        nominative = UnitTranslation(R.string.ratio_fraction_nominative_short),
+        measureUnit = null,
+        convertFromReference = { valueInDefaultUnit -> valueInDefaultUnit.div(1000.0) },
+        convertToReference = { valueInThisUnit -> valueInThisUnit.times(1000.0) },
+        decimals = UnitDecimals(narrow = 1, short = 2, long = 3),
+        chartStep = 0.2
+    ),
+    ;
+
+    /**
+     * @param useMeasureFormat ignored, never supported
+     */
+    override fun format(
+        context: Context,
+        value: Number,
+        valueWidth: UnitWidth,
+        unitWidth: UnitWidth,
+        locale: Locale,
+        showSign: Boolean,
+        useNumberFormatter: Boolean,
+        useMeasureFormat: Boolean,
+    ): String {
+        if (this == FRACTION) {
+            return value.format(
+                decimals = getPrecision(valueWidth),
+                locale = locale,
+                showSign = showSign,
+                useNumberFormatter = useNumberFormatter,
+                useMeasureFormat = useMeasureFormat
+            )
+        }
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && useNumberFormatter) {
+            return measureUnit!!.formatWithNumberFormatter(
+                locale = locale,
+                value = value,
+                perUnit = null,
+                precision = getPrecision(valueWidth),
+                numberFormatterWidth = unitWidth.numberFormatterWidth!!,
+                showSign = showSign
+            )
+        }
+
+        if (this == PERCENT && !showSign) {
+            return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                NumberFormat.getPercentInstance(locale)
+                    .apply { maximumFractionDigits = getPrecision(valueWidth) }
+                    .format(if (value.toDouble() > 0) value.toDouble().div(100.0) else 0)
+            } else {
+                java.text.NumberFormat.getPercentInstance(locale)
+                    .apply { maximumFractionDigits = getPrecision(valueWidth) }
+                    .format(if (value.toDouble() > 0) value.toDouble().div(100.0) else 0)
+            }
+        }
+
+        return formatWithAndroidTranslations(
+            context = context,
+            value = value,
+            valueWidth = valueWidth,
+            unitWidth = unitWidth,
+            locale = locale,
+            showSign = showSign,
+            useNumberFormatter = useNumberFormatter,
+            useMeasureFormat = useMeasureFormat
+        )
+    }
+
+    companion object {
+
+        fun getUnit(id: String): RatioUnit? {
+            return entries.firstOrNull { it.id == id }
+        }
+    }
+}
+
+/** Converts the given time ratio [value] expressed in the specified [sourceUnit] into the specified [targetUnit]. */
+internal fun convertRatioUnit(
+    value: Double,
+    sourceUnit: RatioUnit,
+    targetUnit: RatioUnit,
+): Double {
+    return if (sourceUnit == RatioUnit.PERMILLE) {
+        targetUnit.convertFromReference(value)
+    } else if (targetUnit == RatioUnit.PERMILLE) {
+        sourceUnit.convertToReference(value)
+    } else {
+        targetUnit.convertFromReference(sourceUnit.convertToReference(value))
+    }
+}

weather-unit/src/main/java/org/breezyweather/unit/speed/Speed.kt

@@ -112,7 +112,7 @@ value class Speed internal constructor(
          * The following format is accepted:
          *
          * - The format of string returned by the default [Speed.toString] and `toString` in a specific unit,
-         *   e.g. `50000m` or `30.5km`.
+         *   e.g. `4.2mps` or `30.5kph`.
          *
          * @throws IllegalArgumentException if the string doesn't represent a speed in any of the supported formats.
          */
@@ -129,7 +129,7 @@ value class Speed internal constructor(
          * The following formats is accepted:
          *
          * - The format of string returned by the default [Speed.toString] and `toString` in a specific unit,
-         *   e.g. `50000m` or `30.5km`.
+         *   e.g. `4.2mps` or `30.5kph`.
          */
         fun parseOrNull(value: String): Speed? = try {
             parseSpeed(value)
@@ -196,7 +196,7 @@ value class Speed internal constructor(
      * No more than [unit.decimals.max] decimals will be shown, even if a larger number is requested.
      *
      * @return the value of speed in the specified [unit] followed by that unit abbreviated name:
-     * `pa`, `hpa`, `mb`, `atm`, `mmhg`, `inhg`.
+     * `cmps`, `mps`, `kph`, `mph`, `kn`, `ftps`, `bf`.
      *
      * @throws IllegalArgumentException if [decimals] is less than zero.
      */
@@ -229,8 +229,6 @@ fun Long.toSpeed(unit: SpeedUnit): Speed {
 /**
  * Returns a [Speed] equal to this [Double] number of the specified [unit].
  *
- * Depending on its magnitude, the value is rounded to an integer number of nanoseconds or milliseconds.
- *
  * @throws IllegalArgumentException if this `Double` value is `NaN`.
  */
 fun Double.toSpeed(unit: SpeedUnit): Speed {

weather-unit/src/main/java/org/breezyweather/unit/temperature/Temperature.kt

@@ -81,7 +81,7 @@ value class Temperature internal constructor(
          * The following format is accepted:
          *
          * - The format of string returned by the default [Temperature.toString] and `toString` in a specific unit,
-         *   e.g. `1013.25hpa` or `29.95inhg`.
+         *   e.g. `32c` or `273.15k`.
          *
          * @throws IllegalArgumentException if the string doesn't represent a temperature in any of the supported formats.
          */
@@ -98,7 +98,7 @@ value class Temperature internal constructor(
          * The following formats is accepted:
          *
          * - The format of string returned by the default [Temperature.toString] and `toString` in a specific unit,
-         *   e.g. `1013.25hpa` or `29.95inhg`.
+         *   e.g. `32c` or `273.15k`.
          */
         fun parseOrNull(value: String): Temperature? = try {
             parseTemperature(value)
@@ -163,7 +163,7 @@ value class Temperature internal constructor(
      * No more than [unit.decimals.max] decimals will be shown, even if a larger number is requested.
      *
      * @return the value of temperature in the specified [unit] followed by that unit abbreviated name:
-     * `pa`, `hpa`, `mb`, `atm`, `mmhg`, `inhg`.
+     * `dc`, `c`, `f`, `k`.
      *
      * @throws IllegalArgumentException if [decimals] is less than zero.
      */
@@ -196,8 +196,6 @@ fun Long.toTemperature(unit: TemperatureUnit): Temperature {
 /**
  * Returns a [Temperature] equal to this [Double] number of the specified [unit].
  *
- * Depending on its magnitude, the value is rounded to an integer number of nanoseconds or milliseconds.
- *
  * @throws IllegalArgumentException if this `Double` value is `NaN`.
  */
 fun Double.toTemperature(unit: TemperatureUnit): Temperature {

weather-unit/src/main/res/values/strings.xml

@@ -178,7 +178,7 @@
     <string name="pressure_inhg_nominative_short">%s inHg</string>
     <string name="pressure_inhg_nominative_long">@string/pressure_inhg_nominative_short</string>
 
-    <!-- Duration units TODO: In other languages -->
+    <!-- Duration units -->
 
     <!-- Days / Not used in Breezy Weather, so not translating -->
     <string name="duration_day_display_name_short" translatable="false">day</string>
@@ -230,4 +230,18 @@
     <string name="duration_ns_nominative_short" translatable="false">%s ns</string>
     <string name="duration_ns_nominative_long" translatable="false">@string/duration_ns_nominative_short</string>
 
+    <!-- Ratio units -->
+
+    <!-- Permille -->
+    <string name="ratio_permille_display_name_short" translatable="false">‰</string>
+    <string name="ratio_permille_nominative_short" translatable="false">%s ‰</string>
+
+    <!-- Percent -->
+    <string name="ratio_percent_display_name_short" translatable="false">%</string>
+    <string name="ratio_percent_nominative_short" translatable="false">%s %</string>
+
+    <!-- Fragment -->
+    <string name="ratio_fraction_display_name_short" translatable="false">/</string>
+    <string name="ratio_fraction_nominative_short" translatable="false">%s</string>
+
 </resources>