Add language preference screen

app/ui/src/main/java/de/mm20/launcher2/ui/launcher/widgets/clock/ClockWidget.kt

@@ -525,7 +525,7 @@ fun ConfigureClockWidgetSheet(
                             summary = when (timeFormat) {
                                 TimeFormat.TwelveHour -> stringResource(R.string.preference_clock_widget_time_format_12h)
                                 TimeFormat.TwentyFourHour -> stringResource(R.string.preference_clock_widget_time_format_24h)
-                                TimeFormat.System -> stringResource(R.string.preference_clock_widget_time_format_system)
+                                TimeFormat.System -> stringResource(R.string.preference_value_system_default)
                             },
                             icon = R.drawable.schedule_24px,
                             onClick = {
@@ -537,7 +537,7 @@ fun ConfigureClockWidgetSheet(
                             onDismissRequest = { showDropdown = false }) {
                             DropdownMenuItem(
                                 text = {
-                                    Text(stringResource(R.string.preference_clock_widget_time_format_system))
+                                    Text(stringResource(R.string.preference_value_system_default))
                                 },
                                 onClick = {
                                     viewModel.setTimeFormat(TimeFormat.System)

app/ui/src/main/java/de/mm20/launcher2/ui/settings/SettingsActivity.kt

@@ -85,6 +85,8 @@ import de.mm20.launcher2.ui.settings.integrations.IntegrationsSettingsRoute
 import de.mm20.launcher2.ui.settings.integrations.IntegrationsSettingsScreen
 import de.mm20.launcher2.ui.settings.license.LicenseRoute
 import de.mm20.launcher2.ui.settings.license.LicenseScreen
+import de.mm20.launcher2.ui.settings.locale.LocaleSettingsRoute
+import de.mm20.launcher2.ui.settings.locale.LocaleSettingsScreen
 import de.mm20.launcher2.ui.settings.locations.LocationsSettingsRoute
 import de.mm20.launcher2.ui.settings.locations.LocationsSettingsScreen
 import de.mm20.launcher2.ui.settings.log.LogRoute
@@ -276,6 +278,9 @@ class SettingsActivity : BaseActivity() {
             entry<DebugSettingsRoute> {
                 DebugSettingsScreen()
             }
+            entry<LocaleSettingsRoute> {
+                LocaleSettingsScreen()
+            }
             entry<BackupSettingsRoute> {
                 BackupSettingsScreen()
             }

app/ui/src/main/java/de/mm20/launcher2/ui/settings/icons/IconsSettingsScreen.kt

@@ -479,7 +479,7 @@ private fun getShapeName(shape: IconShape?): String? {
             IconShape.Squircle -> R.string.preference_icon_shape_squircle
             IconShape.Square -> R.string.preference_icon_shape_square
             IconShape.Pentagon -> R.string.preference_icon_shape_pentagon
-            IconShape.PlatformDefault -> R.string.preference_icon_shape_platform
+            IconShape.PlatformDefault -> R.string.preference_value_system_default
             IconShape.Circle -> R.string.preference_icon_shape_circle
             IconShape.Teardrop -> R.string.preference_icon_shape_teardrop
             IconShape.Pebble -> R.string.preference_icon_shape_pebble

app/ui/src/main/java/de/mm20/launcher2/ui/settings/locale/LocaleSettingsScreen.kt

@@ -0,0 +1,61 @@
+package de.mm20.launcher2.ui.settings.locale
+
+import android.app.LocaleConfig
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.LocaleList
+import androidx.activity.compose.LocalActivity
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalResources
+import androidx.compose.ui.res.stringResource
+import androidx.core.net.toUri
+import androidx.core.os.LocaleListCompat
+import androidx.navigation3.runtime.NavKey
+import de.mm20.launcher2.ktx.isAtLeastApiLevel
+import de.mm20.launcher2.ktx.tryStartActivity
+import de.mm20.launcher2.ui.R
+import de.mm20.launcher2.ui.component.preferences.ListPreference
+import de.mm20.launcher2.ui.component.preferences.Preference
+import de.mm20.launcher2.ui.component.preferences.PreferenceCategory
+import de.mm20.launcher2.ui.component.preferences.PreferenceScreen
+import kotlinx.serialization.Serializable
+import java.util.Locale
+
+@Serializable
+data object LocaleSettingsRoute: NavKey
+
+@Composable
+fun LocaleSettingsScreen() {
+    val context = LocalContext.current
+    val resources = LocalResources.current
+
+    val language = remember {
+        AppCompatDelegate.getApplicationLocales().get(0)
+    }
+
+
+    PreferenceScreen(
+        title = stringResource(R.string.preference_screen_locale)
+    ) {
+        item {
+            PreferenceCategory {
+                Preference(
+                    title = stringResource(R.string.preference_language),
+                    summary = if (language == null) stringResource(R.string.preference_value_system_default) else language.getDisplayName(language),
+                    enabled = isAtLeastApiLevel(33),
+                    onClick = {
+                        context.tryStartActivity(
+                            Intent(android.provider.Settings.ACTION_APP_LOCALE_SETTINGS).apply {
+                                setData("package:${context.packageName}".toUri())
+                            }
+                        )
+                    }
+                )
+            }
+        }
+    }
+}

app/ui/src/main/java/de/mm20/launcher2/ui/settings/locale/LocaleSettingsScreenVM.kt

@@ -0,0 +1,8 @@
+package de.mm20.launcher2.ui.settings.locale
+
+import androidx.lifecycle.ViewModel
+import org.koin.core.component.KoinComponent
+
+class LocaleSettingsScreenVM: ViewModel(), KoinComponent {
+
+}

app/ui/src/main/java/de/mm20/launcher2/ui/settings/main/MainSettingsScreen.kt

@@ -16,6 +16,7 @@ import de.mm20.launcher2.ui.settings.gestures.GesturesSettingsRoute
 import de.mm20.launcher2.ui.settings.homescreen.HomescreenSettingsRoute
 import de.mm20.launcher2.ui.settings.icons.IconsSettingsRoute
 import de.mm20.launcher2.ui.settings.integrations.IntegrationsSettingsRoute
+import de.mm20.launcher2.ui.settings.locale.LocaleSettingsRoute
 import de.mm20.launcher2.ui.settings.plugins.PluginsSettingsRoute
 import de.mm20.launcher2.ui.settings.search.SearchSettingsRoute
 import kotlinx.serialization.Serializable
@@ -87,6 +88,14 @@ fun MainSettingsScreen() {
                         backStack.add(PluginsSettingsRoute)
                     }
                 )
+                Preference(
+                    icon = R.drawable.translate_24px,
+                    title = stringResource(id = R.string.preference_screen_locale),
+                    summary = stringResource(id = R.string.preference_screen_locale_summary),
+                    onClick = {
+                        backStack.add(LocaleSettingsRoute)
+                    }
+                )
                 Preference(
                     icon = R.drawable.settings_backup_restore_24px,
                     title = stringResource(id = R.string.preference_screen_backup),

core/i18n/src/main/res/values/strings.xml

@@ -445,7 +445,6 @@
     <string name="preference_transparencies_default">Default</string>
     <string name="preference_transparencies_semi_transparent">Semi-transparent</string>
     <string name="preference_font">Font</string>
-    <string name="preference_font_system">System default</string>
     <string name="preference_screen_about">About</string>
     <string name="preference_version">Version</string>
     <string name="preference_category_links">Links</string>
@@ -494,7 +493,6 @@
     <string name="preference_cards_shape_rounded">Rounded</string>
     <string name="preference_cards_shape_cut">Cut</string>
     <string name="preference_icon_shape">Shape</string>
-    <string name="preference_icon_shape_platform">System default</string>
     <string name="preference_icon_shape_square">Square</string>
     <string name="preference_icon_shape_rounded_square">Rounded square</string>
     <string name="preference_icon_shape_squircle">Squircle</string>
@@ -587,7 +585,6 @@
     <string name="preference_clock_widget_time_format">Time format</string>
     <string name="preference_clock_widget_time_format_24h">24-hour</string>
     <string name="preference_clock_widget_time_format_12h">12-hour</string>
-    <string name="preference_clock_widget_time_format_system">System default</string>
     <string name="widget_use_theme_colors">Use theme color</string>
     <string name="preference_clock_widget_fill_height">Fill screen height</string>
     <string name="preference_clock_widget_alignment">Alignment</string>
@@ -1060,4 +1057,8 @@
     <string name="font_name_device_headline">Default headline font</string>
     <string name="font_name_device_body">Device text font</string>
     <string name="font_category_generic">Generic</string>
+    <string name="preference_screen_locale">Language and region</string>
+    <string name="preference_screen_locale_summary">Language, units, time format</string>
+    <string name="preference_language">Language</string>
+    <string name="preference_value_system_default">System default</string>
 </resources>

data/themes/src/main/java/de/mm20/launcher2/themes/typography/TypographyRepository.kt

@@ -87,7 +87,7 @@ class TypographyRepository(
         get() = Typography(
             id = SystemFontId,
             builtIn = true,
-            name = context.getString(R.string.preference_font_system),
+            name = context.getString(R.string.preference_value_system_default),
             fonts = mapOf(
                 "brand" to FontFamily.DeviceHeadline,
                 "plain" to FontFamily.DeviceBody,