Use platform LocaleManager if possible

app/apk/src/main/AndroidManifest.xml

@@ -2,7 +2,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
-    <application>
+    <application android:localeConfig="@xml/locale_config">
         <activity
             android:name=".ui.MainActivity"
             android:exported="true"

app/apk/src/main/java/com/topjohnwu/magisk/ui/deny/AppProcessInfo.kt

@@ -16,7 +16,7 @@ import android.os.Build
 import android.os.Build.VERSION.SDK_INT
 import androidx.core.os.ProcessCompat
 import com.topjohnwu.magisk.core.ktx.getLabel
-import com.topjohnwu.magisk.core.utils.currentLocale
+import java.util.Locale
 import java.util.TreeSet
 
 class CmdlineListItem(line: String) {
@@ -102,7 +102,7 @@ class AppProcessInfo(
 
     companion object {
         private val comparator = compareBy<AppProcessInfo>(
-            { it.label.lowercase(currentLocale) },
+            { it.label.lowercase(Locale.ROOT) },
             { it.info.packageName }
         )
     }

app/apk/src/main/java/com/topjohnwu/magisk/ui/settings/SettingsItems.kt

@@ -14,18 +14,16 @@ import com.topjohnwu.magisk.core.Const
 import com.topjohnwu.magisk.core.Info
 import com.topjohnwu.magisk.core.ktx.activity
 import com.topjohnwu.magisk.core.tasks.HideAPK
+import com.topjohnwu.magisk.core.utils.LocaleSetting
 import com.topjohnwu.magisk.core.utils.MediaStoreUtils
-import com.topjohnwu.magisk.core.utils.availableLocales
-import com.topjohnwu.magisk.core.utils.currentLocale
 import com.topjohnwu.magisk.databinding.DialogSettingsAppNameBinding
 import com.topjohnwu.magisk.databinding.DialogSettingsDownloadPathBinding
 import com.topjohnwu.magisk.databinding.DialogSettingsUpdateChannelBinding
 import com.topjohnwu.magisk.databinding.set
+import com.topjohnwu.magisk.utils.TextHolder
 import com.topjohnwu.magisk.utils.asText
 import com.topjohnwu.magisk.view.MagiskDialog
 import com.topjohnwu.superuser.Shell
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.launch
 import com.topjohnwu.magisk.core.R as CoreR
 
 // --- Customization
@@ -35,37 +33,27 @@ object Customization : BaseSettingsItem.Section() {
 }
 
 object Language : BaseSettingsItem.Selector() {
+    private val names: Array<String> get() = LocaleSetting.available.names
+    private val tags: Array<String> get() = LocaleSetting.available.tags
+
     override var value
-        get() = index
+        get() = tags.indexOf(Config.locale)
         set(value) {
-            index = value
+            Config.locale = tags[value]
-            Config.locale = entryValues[value]
         }
 
     override val title = CoreR.string.language.asText()
 
-    private var entries = emptyArray<String>()
+    override fun entries(res: Resources) = names
-    private var entryValues = emptyArray<String>()
+    override fun descriptions(res: Resources) = names
-    private var index = -1
-
-    override fun entries(res: Resources) = entries
-    override fun descriptions(res: Resources) = entries
-
-    override fun onPressed(view: View, handler: Handler) {
-        if (entries.isNotEmpty())
-            super.onPressed(view, handler)
 }
 
-    suspend fun loadLanguages(scope: CoroutineScope) {
+object LanguageSystem : BaseSettingsItem.Blank() {
-        scope.launch {
+    override val title = CoreR.string.language.asText()
-            availableLocales().let { (names, values) ->
+    override val description: TextHolder
-                entries = names
+        get() {
-                entryValues = values
+            val locale = LocaleSetting.instance.appLocale
-                val selectedLocale = currentLocale.getDisplayName(currentLocale)
+            return locale?.getDisplayName(locale)?.asText() ?: CoreR.string.system_default.asText()
-                index = names.indexOfFirst { it == selectedLocale }.let { if (it == -1) 0 else it }
-                notifyPropertyChanged(BR.description)
-            }
-        }
         }
 }
 

app/apk/src/main/java/com/topjohnwu/magisk/ui/settings/SettingsViewModel.kt

@@ -1,6 +1,10 @@
 package com.topjohnwu.magisk.ui.settings
 
+import android.app.Activity
+import android.content.Intent
+import android.net.Uri
 import android.os.Build
+import android.provider.Settings
 import android.view.View
 import android.widget.Toast
 import androidx.core.content.pm.ShortcutManagerCompat
@@ -16,6 +20,7 @@ import com.topjohnwu.magisk.core.isRunningAsStub
 import com.topjohnwu.magisk.core.ktx.activity
 import com.topjohnwu.magisk.core.ktx.toast
 import com.topjohnwu.magisk.core.tasks.HideAPK
+import com.topjohnwu.magisk.core.utils.LocaleSetting
 import com.topjohnwu.magisk.databinding.bindExtra
 import com.topjohnwu.magisk.events.AddHomeIconEvent
 import com.topjohnwu.magisk.events.AuthEvent
@@ -30,12 +35,6 @@ class SettingsViewModel : BaseViewModel(), BaseSettingsItem.Handler {
         it.put(BR.handler, this)
     }
 
-    init {
-        viewModelScope.launch {
-            Language.loadLanguages(this)
-        }
-    }
-
     private fun createItems(): List<BaseSettingsItem> {
         val context = AppContext
         val hidden = context.packageName != BuildConfig.APP_PACKAGE_NAME
@@ -43,7 +42,7 @@ class SettingsViewModel : BaseViewModel(), BaseSettingsItem.Handler {
         // Customization
         val list = mutableListOf(
             Customization,
-            Theme, Language
+            Theme, if (LocaleSetting.useLocaleManager) LanguageSystem else Language
         )
         if (isRunningAsStub && ShortcutManagerCompat.isRequestPinShortcutSupported(context))
             list.add(AddShortcut)
@@ -98,6 +97,7 @@ class SettingsViewModel : BaseViewModel(), BaseSettingsItem.Handler {
             SystemlessHosts -> createHosts()
             Hide, Restore -> withInstallPermission(andThen)
             AddShortcut -> AddHomeIconEvent().publish()
+            LanguageSystem -> launchAppLocaleSettings(view.activity)
             else -> andThen()
         }
     }
@@ -112,6 +112,12 @@ class SettingsViewModel : BaseViewModel(), BaseSettingsItem.Handler {
         }
     }
 
+    private fun launchAppLocaleSettings(activity: Activity) {
+        val intent = Intent(Settings.ACTION_APP_LOCALE_SETTINGS)
+        intent.data = Uri.fromParts("package", activity.packageName, null)
+        activity.startActivity(intent)
+    }
+
     private fun openUrlIfNecessary(view: View) {
         UpdateChannelUrl.refresh()
         if (UpdateChannelUrl.isEnabled && UpdateChannelUrl.value.isBlank()) {

app/apk/src/main/java/com/topjohnwu/magisk/ui/superuser/SuperuserViewModel.kt

@@ -16,7 +16,6 @@ import com.topjohnwu.magisk.core.R
 import com.topjohnwu.magisk.core.data.magiskdb.PolicyDao
 import com.topjohnwu.magisk.core.ktx.getLabel
 import com.topjohnwu.magisk.core.model.su.SuPolicy
-import com.topjohnwu.magisk.core.utils.currentLocale
 import com.topjohnwu.magisk.databinding.MergeObservableList
 import com.topjohnwu.magisk.databinding.RvItem
 import com.topjohnwu.magisk.databinding.bindExtra
@@ -30,6 +29,7 @@ import com.topjohnwu.magisk.view.TextItem
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
+import java.util.Locale
 
 class SuperuserViewModel(
     private val db: PolicyDao
@@ -92,7 +92,7 @@ class SuperuserViewModel(
                 policies.addAll(map)
             }
             policies.sortWith(compareBy(
-                { it.appName.lowercase(currentLocale) },
+                { it.appName.lowercase(Locale.ROOT) },
                 { it.packageName }
             ))
             itemsPolicies.update(policies)

app/apk/src/main/java/com/topjohnwu/magisk/utils/MotionRevealHelper.kt

@@ -14,7 +14,7 @@ import androidx.interpolator.view.animation.FastOutSlowInInterpolator
 import com.google.android.material.circularreveal.CircularRevealCompat
 import com.google.android.material.circularreveal.CircularRevealWidget
 import com.google.android.material.floatingactionbutton.FloatingActionButton
-import com.topjohnwu.magisk.core.utils.currentLocale
+import com.topjohnwu.magisk.core.utils.LocaleSetting
 import kotlin.math.hypot
 
 object MotionRevealHelper {
@@ -63,7 +63,9 @@ object MotionRevealHelper {
         it.interpolator = FastOutSlowInInterpolator()
         it.addListener(onStart = { show() }, onEnd = { if (revealInfo.radius != 0f) hide() })
 
-        val rtlMod = if (currentLocale.layoutDirection == View.LAYOUT_DIRECTION_RTL) 1f else -1f
+        val rtlMod =
+            if (LocaleSetting.instance.currentLocale.layoutDirection == View.LAYOUT_DIRECTION_RTL)
+                1f else -1f
         val maxX = revealInfo.centerX - marginEnd - measuredWidth / 2f
         val targetX = if (revealInfo.radius == 0f) 0f else maxX * rtlMod
         val moveX = ObjectAnimator.ofFloat(this, View.TRANSLATION_X, targetX)

app/core/src/main/java/com/topjohnwu/magisk/core/AppContext.kt

@@ -2,6 +2,7 @@ package com.topjohnwu.magisk.core
 
 import android.app.Activity
 import android.app.Application
+import android.app.LocaleManager
 import android.content.ComponentCallbacks2
 import android.content.Context
 import android.content.ContextWrapper
@@ -13,12 +14,11 @@ import android.system.Os
 import androidx.profileinstaller.ProfileInstaller
 import com.topjohnwu.magisk.StubApk
 import com.topjohnwu.magisk.core.base.UntrackedActivity
+import com.topjohnwu.magisk.core.utils.LocaleSetting
 import com.topjohnwu.magisk.core.utils.NetworkObserver
 import com.topjohnwu.magisk.core.utils.ProcessLifecycle
 import com.topjohnwu.magisk.core.utils.RootUtils
 import com.topjohnwu.magisk.core.utils.ShellInit
-import com.topjohnwu.magisk.core.utils.refreshLocale
-import com.topjohnwu.magisk.core.utils.setConfig
 import com.topjohnwu.magisk.view.Notifications
 import com.topjohnwu.superuser.Shell
 import com.topjohnwu.superuser.internal.UiThreadHandler
@@ -31,6 +31,9 @@ import timber.log.Timber
 import java.lang.ref.WeakReference
 import kotlin.system.exitProcess
 
+lateinit var AppApkPath: String
+    private set
+
 object AppContext : ContextWrapper(null),
     Application.ActivityLifecycleCallbacks, ComponentCallbacks2 {
 
@@ -52,7 +55,7 @@ object AppContext : ContextWrapper(null),
     }
 
     override fun onConfigurationChanged(newConfig: Configuration) {
-        resources.setConfig(newConfig)
+        LocaleSetting.instance.updateResource(resources)
     }
 
     override fun onActivityResumed(activity: Activity) {
@@ -79,7 +82,6 @@ object AppContext : ContextWrapper(null),
         } else {
             base.packageResourcePath
         }
-        refreshLocale()
         resources.patch()
 
         val shellBuilder = Shell.Builder.create()
@@ -97,6 +99,11 @@ object AppContext : ContextWrapper(null),
         // Pre-heat the shell ASAP
         Shell.getShell(null) {}
 
+        if (SDK_INT >= 34 && isRunningAsStub) {
+            // Send over the locale config manually
+            val lm = getSystemService(LocaleManager::class.java)
+            lm.overrideLocaleConfig = LocaleSetting.localeConfig
+        }
         Notifications.setup()
         ProcessLifecycle.init(this)
         NetworkObserver.init(this)

app/core/src/main/java/com/topjohnwu/magisk/core/Config.kt

@@ -6,7 +6,7 @@ import com.topjohnwu.magisk.core.di.ServiceLocator
 import com.topjohnwu.magisk.core.ktx.writeTo
 import com.topjohnwu.magisk.core.repository.DBConfig
 import com.topjohnwu.magisk.core.repository.PreferenceConfig
-import com.topjohnwu.magisk.core.utils.refreshLocale
+import com.topjohnwu.magisk.core.utils.LocaleSetting
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.runBlocking
@@ -135,7 +135,7 @@ object Config : PreferenceConfig, DBConfig {
         get() = localePrefs
         set(value) {
             localePrefs = value
-            refreshLocale()
+            LocaleSetting.instance.setLocale(value)
         }
 
     var zygisk by dbSettings(Key.ZYGISK, false)

app/core/src/main/java/com/topjohnwu/magisk/core/Hacks.kt

@@ -6,22 +6,18 @@ import android.content.ComponentName
 import android.content.Context
 import android.content.ContextWrapper
 import android.content.Intent
-import android.content.res.AssetManager
 import android.content.res.Configuration
 import android.content.res.Resources
-import android.util.DisplayMetrics
 import com.topjohnwu.magisk.StubApk
 import com.topjohnwu.magisk.core.ktx.unwrap
-import com.topjohnwu.magisk.core.utils.syncLocale
+import com.topjohnwu.magisk.core.utils.LocaleSetting
-
-lateinit var AppApkPath: String
 
 fun Resources.addAssetPath(path: String) = StubApk.addAssetPath(this, path)
 
 fun Resources.patch(): Resources {
     if (isRunningAsStub)
         addAssetPath(AppApkPath)
-    syncLocale()
+    LocaleSetting.instance.updateResource(this)
     return this
 }
 
@@ -40,16 +36,6 @@ fun Context.wrap(): Context {
     }
 }
 
-fun createNewResources(): Resources {
-    val asset = AssetManager::class.java.newInstance()
-    val config = Configuration(AppContext.resources.configuration)
-    val metrics = DisplayMetrics()
-    metrics.setTo(AppContext.resources.displayMetrics)
-    val res = Resources(asset, metrics, config)
-    res.addAssetPath(AppApkPath)
-    return res
-}
-
 fun Class<*>.cmp(pkg: String) =
     ComponentName(pkg, Info.stub?.classToComponent?.get(name) ?: name)
 

app/core/src/main/java/com/topjohnwu/magisk/core/di/Networking.kt

@@ -6,7 +6,7 @@ import com.topjohnwu.magisk.ProviderInstaller
 import com.topjohnwu.magisk.core.BuildConfig
 import com.topjohnwu.magisk.core.Config
 import com.topjohnwu.magisk.core.Info
-import com.topjohnwu.magisk.core.utils.currentLocale
+import com.topjohnwu.magisk.core.utils.LocaleSetting
 import okhttp3.Cache
 import okhttp3.ConnectionSpec
 import okhttp3.Dns
@@ -68,7 +68,7 @@ fun createOkHttpClient(context: Context): OkHttpClient {
     builder.addInterceptor { chain ->
         val request = chain.request().newBuilder()
         request.header("User-Agent", "Magisk/${BuildConfig.APP_VERSION_CODE}")
-        request.header("Accept-Language", currentLocale.toLanguageTag())
+        request.header("Accept-Language", LocaleSetting.instance.currentLocale.toLanguageTag())
         chain.proceed(request.build())
     }
 

app/core/src/main/java/com/topjohnwu/magisk/core/ktx/XAndroid.kt

@@ -6,7 +6,6 @@ import android.content.*
 import android.content.pm.ApplicationInfo
 import android.content.pm.PackageInfo
 import android.content.pm.PackageManager
-import android.content.res.Configuration
 import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.graphics.drawable.AdaptiveIconDrawable
@@ -19,8 +18,8 @@ import android.view.View
 import android.view.inputmethod.InputMethodManager
 import android.widget.Toast
 import androidx.core.content.getSystemService
+import com.topjohnwu.magisk.core.utils.LocaleSetting
 import com.topjohnwu.magisk.core.utils.RootUtils
-import com.topjohnwu.magisk.core.utils.currentLocale
 import com.topjohnwu.magisk.utils.APKInstall
 import com.topjohnwu.superuser.internal.UiThreadHandler
 import java.io.File
@@ -54,9 +53,7 @@ fun ApplicationInfo.getLabel(pm: PackageManager): String {
     runCatching {
         if (labelRes > 0) {
             val res = pm.getResourcesForApplication(this)
-            val config = Configuration()
+            LocaleSetting.instance.updateResource(res)
-            config.setLocale(currentLocale)
-            res.updateConfiguration(config, res.displayMetrics)
             return res.getString(labelRes)
         }
     }

app/core/src/main/java/com/topjohnwu/magisk/core/ktx/XJVM.kt

@@ -1,7 +1,6 @@
 package com.topjohnwu.magisk.core.ktx
 
 import androidx.collection.SparseArrayCompat
-import com.topjohnwu.magisk.core.utils.currentLocale
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.Flow
@@ -17,6 +16,7 @@ import java.lang.reflect.Field
 import java.text.DateFormat
 import java.text.SimpleDateFormat
 import java.util.Collections
+import java.util.Locale
 import java.util.zip.ZipEntry
 import java.util.zip.ZipInputStream
 
@@ -98,13 +98,13 @@ fun Long.toTime(format: DateFormat) = format.format(this).orEmpty()
 val timeFormatStandard by lazy {
     SimpleDateFormat(
         "yyyy-MM-dd'T'HH.mm.ss",
-        currentLocale
+        Locale.ROOT
     )
 }
 val timeDateFormat: DateFormat by lazy {
     DateFormat.getDateTimeInstance(
         DateFormat.DEFAULT,
         DateFormat.DEFAULT,
-        currentLocale
+        Locale.ROOT
     )
 }

app/core/src/main/java/com/topjohnwu/magisk/core/utils/LocaleSetting.kt

@@ -0,0 +1,183 @@
+package com.topjohnwu.magisk.core.utils
+
+import android.annotation.SuppressLint
+import android.app.LocaleConfig
+import android.app.LocaleManager
+import android.content.ContextWrapper
+import android.content.res.Resources
+import android.os.Build
+import android.os.LocaleList
+import androidx.annotation.RequiresApi
+import com.topjohnwu.magisk.core.AppApkPath
+import com.topjohnwu.magisk.core.AppContext
+import com.topjohnwu.magisk.core.Config
+import com.topjohnwu.magisk.core.R
+import com.topjohnwu.magisk.core.base.relaunch
+import com.topjohnwu.magisk.core.isRunningAsStub
+import org.xmlpull.v1.XmlPullParser
+import java.util.Locale
+
+interface LocaleSetting {
+    // The locale that is manually overridden, null if system default
+    val appLocale: Locale?
+    // The current active locale used in the application
+    val currentLocale: Locale
+
+    fun setLocale(tag: String)
+    fun updateResource(res: Resources)
+
+    private class Api23Impl : LocaleSetting {
+
+        private val systemLocale: Locale = Locale.getDefault()
+
+        override var currentLocale: Locale = systemLocale
+        override var appLocale: Locale? = null
+
+        init {
+            setLocale(Config.locale)
+        }
+
+        override fun setLocale(tag: String) {
+            val locale = when {
+                tag.isEmpty() -> null
+                else -> Locale.forLanguageTag(tag)
+            }
+            currentLocale = locale ?: systemLocale
+            appLocale = locale
+            Locale.setDefault(currentLocale)
+            updateResource(AppContext.resources)
+            AppContext.foregroundActivity?.relaunch()
+        }
+
+        @Suppress("DEPRECATION")
+        override fun updateResource(res: Resources) {
+            val config = res.configuration
+            config.setLocale(currentLocale)
+            res.updateConfiguration(config, null)
+        }
+    }
+
+    @RequiresApi(24)
+    private class Api24Impl : LocaleSetting {
+
+        private val systemLocaleList = LocaleList.getDefault()
+        private var currentLocaleList: LocaleList = systemLocaleList
+
+        override var appLocale: Locale? = null
+        override val currentLocale: Locale get() = currentLocaleList[0]
+
+        init {
+            setLocale(Config.locale)
+        }
+
+        override fun setLocale(tag: String) {
+            val localeList = when {
+                tag.isEmpty() -> null
+                else -> LocaleList.forLanguageTags(tag)
+            }
+            currentLocaleList = localeList ?: systemLocaleList
+            appLocale = localeList?.get(0)
+            LocaleList.setDefault(currentLocaleList)
+            updateResource(AppContext.resources)
+            AppContext.foregroundActivity?.relaunch()
+        }
+
+        @Suppress("DEPRECATION")
+        override fun updateResource(res: Resources) {
+            val config = res.configuration
+            config.setLocales(currentLocaleList)
+            res.updateConfiguration(config, null)
+        }
+    }
+
+    @RequiresApi(33)
+    private class Api33Impl : LocaleSetting {
+
+        private val lm: LocaleManager = AppContext.getSystemService(LocaleManager::class.java)
+
+        override val appLocale: Locale?
+            get() = lm.applicationLocales.let { if (it.isEmpty) null else it[0] }
+
+        override val currentLocale: Locale
+            get() = appLocale ?: lm.systemLocales[0]
+
+        // These following methods should not be used
+        override fun setLocale(tag: String) {}
+        override fun updateResource(res: Resources) {}
+    }
+
+    class AppLocaleList(
+        val names: Array<String>,
+        val tags: Array<String>
+    )
+
+    @SuppressLint("NewApi")
+    companion object {
+        val available: AppLocaleList by lazy {
+            val names = ArrayList<String>()
+            val tags = ArrayList<String>()
+
+            names.add(AppContext.getString(R.string.system_default))
+            tags.add("")
+
+            if (Build.VERSION.SDK_INT >= 34) {
+                // Use platform LocaleConfig parser
+                val config = localeConfig
+                val list = config.supportedLocales ?: LocaleList.getEmptyLocaleList()
+                names.ensureCapacity(list.size() + 1)
+                tags.ensureCapacity(list.size() + 1)
+                for (i in 0 until list.size()) {
+                    val locale = list[i]
+                    names.add(locale.getDisplayName(locale))
+                    tags.add(locale.toLanguageTag())
+                }
+            } else {
+                // Manually parse locale_config.xml
+                val parser = AppContext.resources.getXml(R.xml.locale_config)
+                while (true) {
+                    when (parser.next()) {
+                        XmlPullParser.START_TAG -> {
+                            if (parser.name == "locale") {
+                                val tag = parser.getAttributeValue(0)
+                                val locale = Locale.forLanguageTag(tag)
+                                names.add(locale.getDisplayName(locale))
+                                tags.add(tag)
+                            }
+                        }
+                        XmlPullParser.END_DOCUMENT -> break
+                    }
+                }
+            }
+            AppLocaleList(names.toTypedArray(), tags.toTypedArray())
+        }
+
+        @get:RequiresApi(34)
+        val localeConfig: LocaleConfig by lazy {
+            val context = if (isRunningAsStub) {
+                val pkgInfo = AppContext.packageManager.getPackageArchiveInfo(AppApkPath, 0)!!
+                object : ContextWrapper(AppContext) {
+                    override fun getApplicationInfo() = pkgInfo.applicationInfo
+                }
+            } else {
+                AppContext
+            }
+            LocaleConfig.fromContextIgnoringOverride(context)
+        }
+
+        val useLocaleManager get() =
+            if (isRunningAsStub) Build.VERSION.SDK_INT >= 34
+            else Build.VERSION.SDK_INT >= 33
+
+        val instance: LocaleSetting by lazy {
+            // Initialize available locale list
+            available
+            if (useLocaleManager) {
+                Api33Impl()
+            } else if (Build.VERSION.SDK_INT <= 23) {
+                Api23Impl()
+            } else {
+                Api24Impl()
+            }
+        }
+    }
+}

app/core/src/main/java/com/topjohnwu/magisk/core/utils/Locales.kt

@@ -1,88 +0,0 @@
-@file:Suppress("DEPRECATION")
-
-package com.topjohnwu.magisk.core.utils
-
-import android.annotation.SuppressLint
-import android.content.res.Configuration
-import android.content.res.Resources
-import com.topjohnwu.magisk.core.AppContext
-import com.topjohnwu.magisk.core.Config
-import com.topjohnwu.magisk.core.R
-import com.topjohnwu.magisk.core.base.relaunch
-import com.topjohnwu.magisk.core.createNewResources
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
-import java.util.Locale
-
-var currentLocale: Locale = Locale.getDefault()
-
-@SuppressLint("ConstantLocale")
-val defaultLocale: Locale = Locale.getDefault()
-
-private var cachedLocales: Pair<Array<String>, Array<String>>? = null
-
-suspend fun availableLocales() = cachedLocales ?:
-withContext(Dispatchers.Default) {
-    val compareId = R.string.app_changelog
-
-    // Create a completely new resource to prevent cross talk over active configs
-    val res = createNewResources()
-
-    fun changeLocale(locale: Locale) {
-        res.configuration.setLocale(locale)
-        res.updateConfiguration(res.configuration, res.displayMetrics)
-    }
-
-    val locales = ArrayList<String>().apply {
-        // Add default locale
-        add("en")
-
-        // Add some special locales
-        add("zh-TW")
-        add("pt-BR")
-
-        // Then add all supported locales
-        addAll(Resources.getSystem().assets.locales)
-    }.map {
-        Locale.forLanguageTag(it)
-    }.distinctBy {
-        changeLocale(it)
-        res.getString(compareId)
-    }.sortedWith { a, b ->
-        a.getDisplayName(a).compareTo(b.getDisplayName(b), true)
-    }
-
-    changeLocale(defaultLocale)
-    val defName = res.getString(R.string.system_default)
-
-    val names = ArrayList<String>(locales.size + 1)
-    val values = ArrayList<String>(locales.size + 1)
-
-    names.add(defName)
-    values.add("")
-
-    locales.forEach { locale ->
-        names.add(locale.getDisplayName(locale))
-        values.add(locale.toLanguageTag())
-    }
-
-    (names.toTypedArray() to values.toTypedArray()).also { cachedLocales = it }
-}
-
-fun Resources.setConfig(config: Configuration) {
-    config.setLocale(currentLocale)
-    updateConfiguration(config, null)
-}
-
-fun Resources.syncLocale() = setConfig(configuration)
-
-fun refreshLocale() {
-    val localeConfig = Config.locale
-    currentLocale = when {
-        localeConfig.isEmpty() -> defaultLocale
-        else -> Locale.forLanguageTag(localeConfig)
-    }
-    Locale.setDefault(currentLocale)
-    AppContext.resources.syncLocale()
-    AppContext.foregroundActivity?.relaunch()
-}

app/core/src/main/res/xml/locale_config.xml

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+    <locale android:name="ar" />
+    <locale android:name="ast" />
+    <locale android:name="az" />
+    <locale android:name="be" />
+    <locale android:name="bg" />
+    <locale android:name="bn" />
+    <locale android:name="ca" />
+    <locale android:name="cs" />
+    <locale android:name="de" />
+    <locale android:name="el" />
+    <locale android:name="en" />
+    <locale android:name="es" />
+    <locale android:name="et" />
+    <locale android:name="fa" />
+    <locale android:name="fr" />
+    <locale android:name="hi" />
+    <locale android:name="hr" />
+    <locale android:name="hu" />
+    <locale android:name="in" />
+    <locale android:name="it" />
+    <locale android:name="iw" />
+    <locale android:name="ja" />
+    <locale android:name="ka" />
+    <locale android:name="kk" />
+    <locale android:name="ko" />
+    <locale android:name="lt" />
+    <locale android:name="mk" />
+    <locale android:name="ml" />
+    <locale android:name="nb" />
+    <locale android:name="nl" />
+    <locale android:name="pa" />
+    <locale android:name="pl" />
+    <locale android:name="pt-BR" />
+    <locale android:name="pt-PT" />
+    <locale android:name="ro" />
+    <locale android:name="ru" />
+    <locale android:name="sk" />
+    <locale android:name="sq" />
+    <locale android:name="sr" />
+    <locale android:name="sv" />
+    <locale android:name="sw" />
+    <locale android:name="ta" />
+    <locale android:name="th" />
+    <locale android:name="tr" />
+    <locale android:name="uk" />
+    <locale android:name="vi" />
+    <locale android:name="zh-CN" />
+    <locale android:name="zh-TW" />
+</locale-config>