Use native language chooser

app/build.gradle

@@ -125,7 +125,7 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
-    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.0'
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.0'
 
     /**
      * AndroidX dependencies:

app/src/main/AndroidManifest.xml

@@ -6,6 +6,8 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
     <uses-permission android:name="android.permission.CAMERA" />
 
     <uses-feature
@@ -25,7 +27,17 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
+        android:localeConfig="@xml/locales_config"
         android:theme="@style/AppTheme">
+        <service
+            android:name="androidx.appcompat.app.AppLocalesMetadataHolderService"
+            android:enabled="false"
+            android:exported="false">
+            <meta-data
+                android:name="autoStoreLocales"
+                android:value="true" />
+        </service>
+
         <activity
             android:name=".posts.AlbumActivity"
             android:exported="false"

app/src/main/java/org/pixeldroid/app/LoginActivity.kt

@@ -257,8 +257,9 @@ class LoginActivity : BaseThemedWithoutBarActivity() {
 
         //Successful authorization
         pixelfedAPI = PixelfedAPI.createFromUrl(domain)
-        val nodeInfo: NodeInfo? = Gson().fromJson(preferences.getString("nodeInfo", null), NodeInfo::class.java)
+        val gson = Gson()
-        val instance: Instance? = Gson().fromJson(preferences.getString("instance", null), Instance::class.java)
+        val nodeInfo: NodeInfo? = gson.fromJson(preferences.getString("nodeInfo", null), NodeInfo::class.java)
+        val instance: Instance? = gson.fromJson(preferences.getString("instance", null), Instance::class.java)
 
         lifecycleScope.launch {
             try {

app/src/main/java/org/pixeldroid/app/settings/SettingsActivity.kt

@@ -1,10 +1,16 @@
 package org.pixeldroid.app.settings
 
+import android.app.Dialog
 import android.content.Intent
 import android.content.SharedPreferences
+import android.content.res.XmlResourceParser
 import android.os.Build
 import android.os.Bundle
+import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.core.os.LocaleListCompat
 import androidx.fragment.app.DialogFragment
+import androidx.preference.ListPreference
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.PreferenceManager
@@ -13,6 +19,7 @@ import org.pixeldroid.app.R
 import org.pixeldroid.app.utils.BaseThemedWithBarActivity
 import org.pixeldroid.app.utils.setThemeFromPreferences
 
+
 class SettingsActivity : BaseThemedWithBarActivity(), SharedPreferences.OnSharedPreferenceChangeListener {
     private var restartMainOnExit = false
 
@@ -57,9 +64,6 @@ class SettingsActivity : BaseThemedWithBarActivity(), SharedPreferences.OnShared
     }
     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences, key: String) {
         when (key) {
-            "language" -> {
-                recreateWithRestartStatus()
-            }
             "theme" -> {
                 setThemeFromPreferences(sharedPreferences, resources)
                 recreateWithRestartStatus()
@@ -88,6 +92,8 @@ class SettingsActivity : BaseThemedWithBarActivity(), SharedPreferences.OnShared
             var dialogFragment: DialogFragment? = null
             if (preference is ColorPreference) {
                 dialogFragment = ColorPreferenceDialog((preference as ColorPreference?)!!)
+            } else if(preference.key == "language"){
+                dialogFragment = LanguageSettingFragment()
             }
             if (dialogFragment != null) {
                 dialogFragment.setTargetFragment(this, 0)
@@ -100,12 +106,60 @@ class SettingsActivity : BaseThemedWithBarActivity(), SharedPreferences.OnShared
         override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
             setPreferencesFromResource(R.xml.root_preferences, rootKey)
 
+            findPreference<ListPreference>("language")?.let {
+                it.setSummaryProvider {
+                    val locale = AppCompatDelegate.getApplicationLocales().get(0)
+                    locale?.getDisplayName(locale) ?: getString(R.string.default_system)
+                }
+            }
+
             //Hide Notification setting for Android versions where it doesn't work
             if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                preferenceManager.findPreference<Preference>("notification")
+                findPreference<Preference>("notification")
                     ?.let { preferenceScreen.removePreference(it) }
             }
         }
     }
 
-}
+}
+class LanguageSettingFragment : DialogFragment() {
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        val list: MutableList<String> = mutableListOf()
+        resources.getXml(R.xml.locales_config).use {
+            var eventType = it.eventType
+            while (eventType != XmlResourceParser.END_DOCUMENT) {
+                when (eventType) {
+                    XmlResourceParser.START_TAG -> {
+                        if (it.name == "locale") {
+                            list.add(it.getAttributeValue(0))
+                        }
+                    }
+                }
+                eventType = it.next()
+            }
+        }
+        val locales = AppCompatDelegate.getApplicationLocales()
+        val checkedItem: Int =
+            if(locales.isEmpty) 0
+            else {
+                val index = list.indexOf(locales.get(0)?.toLanguageTag())
+                // If found, we want to compensate for the first in the list being the default
+                if(index == -1) -1
+                else index + 1
+            }
+
+        return AlertDialog.Builder(requireContext()).apply {
+            setIcon(R.drawable.translate_black_24dp)
+            setTitle(R.string.language)
+            setSingleChoiceItems((mutableListOf(getString(R.string.default_system)) + list.map {
+                val appLocale = LocaleListCompat.forLanguageTags(it)
+                appLocale.get(0)!!.getDisplayName(appLocale.get(0)!!)
+            }).toTypedArray(), checkedItem) { dialog, which ->
+                val languageTag = if(which in 1..list.size) list[which - 1] else null
+                AppCompatDelegate.setApplicationLocales(LocaleListCompat.forLanguageTags(languageTag))
+                dialog.dismiss()
+            }
+            setNegativeButton(android.R.string.ok) { _, _ -> }
+        }.create()
+    }
+}

app/src/main/java/org/pixeldroid/app/utils/BaseActivity.kt

@@ -1,15 +1,9 @@
 package org.pixeldroid.app.utils
 
-import android.content.Context
-import android.content.res.Configuration
-import android.content.res.Resources
-import android.os.Build
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
-import androidx.preference.PreferenceManager
 import org.pixeldroid.app.utils.db.AppDatabase
 import org.pixeldroid.app.utils.di.PixelfedAPIHolder
-import java.util.*
 import javax.inject.Inject
 
 open class BaseActivity : AppCompatActivity() {
@@ -24,40 +18,8 @@ open class BaseActivity : AppCompatActivity() {
         (this.application as PixelDroidApplication).getAppComponent().inject(this)
     }
 
-    override fun attachBaseContext(base: Context) {
-        super.attachBaseContext(updateBaseContextLocale(base))
-    }
-
     override fun onSupportNavigateUp(): Boolean {
         onBackPressed()
         return true
     }
-
-    private fun updateBaseContextLocale(context: Context): Context {
-        val language = PreferenceManager.getDefaultSharedPreferences(context).getString("language", "default") ?: "default"
-        if(language == "default"){
-            return context
-        }
-        val locale = Locale.forLanguageTag(language)
-        Locale.setDefault(locale)
-        return if (Build.VERSION.SDK_INT > Build.VERSION_CODES.N) {
-            updateResourcesLocale(context, locale)
-        } else updateResourcesLocaleLegacy(context, locale)
-    }
-
-    private fun updateResourcesLocale(context: Context, locale: Locale): Context =
-        context.createConfigurationContext(
-                Configuration(context.resources.configuration)
-                        .apply { setLocale(locale) }
-        )
-
-    @Suppress("DEPRECATION")
-    private fun updateResourcesLocaleLegacy(context: Context, locale: Locale): Context {
-        val resources: Resources = context.resources
-        val configuration: Configuration = resources.configuration
-        configuration.locale = locale
-        resources.updateConfiguration(configuration, resources.displayMetrics)
-        return context
-    }
-
 }

app/src/main/res/values/arrays.xml

@@ -10,61 +10,4 @@
         <item>@string/light_theme</item>
         <item>@string/dark_theme</item>
     </string-array>
-
-
-    <string-array name="languages_entries">
-        <item>@string/default_system</item>
-        <item>العربية</item>
-        <item>বাংলা (বাংলাদেশ)</item>
-        <item>Català</item>
-        <item>Čeština</item>
-        <item>Deutsch</item>
-        <item>Español</item>
-        <item>Euskara</item>
-        <item>English</item>
-        <item>فارسی</item>
-        <item>Suomi</item>
-        <item>Français</item>
-        <item>Gaeilge</item>
-        <item>Magyar</item>
-        <item>bahasa Indonesia</item>
-        <item>Italiano</item>
-        <item>日本語</item>
-        <item>മലയാളം</item>
-        <item>Nederlands</item>
-        <item>Polski</item>
-        <item>Português (Brasil)</item>
-        <item>Русский</item>
-        <item>Svenska</item>
-        <item>Українська</item>
-        <item>中文(简体)</item>
-    </string-array>
-
-    <string-array name="languages_values">
-        <item>default</item>
-        <item>ar</item>
-        <item>bn-bd</item>
-        <item>ca</item>
-        <item>cs</item>
-        <item>de</item>
-        <item>es</item>
-        <item>eu</item>
-        <item>en</item>
-        <item>fa</item>
-        <item>fi</item>
-        <item>fr</item>
-        <item>gl</item>
-        <item>hu</item>
-        <item>id</item>
-        <item>it</item>
-        <item>ja</item>
-        <item>ml</item>
-        <item>nl</item>
-        <item>pl</item>
-        <item>pt-br</item>
-        <item>ru</item>
-        <item>sv</item>
-        <item>uk</item>
-        <item>zh-CN</item>
-    </string-array>
 </resources>

app/src/main/res/xml/locales_config.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+    <locale android:name="en"/>
+    <locale android:name="ar"/>
+    <locale android:name="bn-bd"/>
+    <locale android:name="ca"/>
+    <locale android:name="cs"/>
+    <locale android:name="de"/>
+    <locale android:name="es"/>
+    <locale android:name="eu"/>
+    <locale android:name="fa"/>
+    <locale android:name="fi"/>
+    <locale android:name="fr"/>
+    <locale android:name="gl"/>
+    <locale android:name="hu"/>
+    <locale android:name="id"/>
+    <locale android:name="it"/>
+    <locale android:name="ja"/>
+    <locale android:name="ml"/>
+    <locale android:name="nl"/>
+    <locale android:name="pl"/>
+    <locale android:name="pt-br"/>
+    <locale android:name="ru"/>
+    <locale android:name="sv"/>
+    <locale android:name="uk"/>
+    <locale android:name="zh-CN"/>
+</locale-config>

app/src/main/res/xml/root_preferences.xml

@@ -19,12 +19,8 @@
     </PreferenceCategory>
 
     <ListPreference
-        app:defaultValue="default"
-        app:entries="@array/languages_entries"
-        app:entryValues="@array/languages_values"
         app:key="language"
         app:title="@string/language"
-        app:useSimpleSummaryProvider="true"
         app:icon="@drawable/translate_black_24dp" />
 
     <Preference android:title="@string/notifications_settings"
@@ -40,8 +36,7 @@
     <EditTextPreference android:title="@string/description_template"
         android:key="prefill_description"
         android:summary="@string/description_template_summary"
-        app:icon="@drawable/note"
+        app:icon="@drawable/note" />
-        />
 
     <Preference android:title="@string/about"
         android:key="about"

gradle.properties

@@ -24,3 +24,4 @@ org.gradle.caching=true
 org.gradle.parallel=true
 kapt.incremental.apt=true
 android.enableR8.fullMode=true
+android.nonTransitiveRClass=false