add language picker

app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt

@@ -71,6 +71,7 @@ private object PrefKeys {
     const val AUTOMATICALLY_SHOW_IMAGES = "automatically_show_images"
     const val AUTOMATICALLY_START_PLAYBACK = "automatically_start_playback"
     const val THEME = "theme"
+    const val PREFERRED_LANGUAGE = "preferred_Language"
     val LAST_READ: (String) -> String = { route -> "last_read_route_$route" }
 }
 
@@ -254,6 +255,7 @@ object LocalPreferences {
             } else {
                 putBoolean(PrefKeys.AUTOMATICALLY_START_PLAYBACK, account.settings.automaticallyStartPlayback!!)
             }
+            putString(PrefKeys.PREFERRED_LANGUAGE, account.settings.preferredLanguage ?: "")
         }.apply()
     }
 
@@ -271,6 +273,14 @@ object LocalPreferences {
         return theme
     }
 
+    fun getPreferredLanguage(): String {
+        var language = ""
+        encryptedPreferences().apply {
+            language = getString(PrefKeys.PREFERRED_LANGUAGE, "") ?: ""
+        }
+        return language
+    }
+
     fun loadFromEncryptedStorage(): Account? {
         val acc = loadFromEncryptedStorage(currentAccount())
         acc?.registerObservers()
@@ -373,7 +383,7 @@ object LocalPreferences {
                 mapOf()
             }
 
-            val settings = Settings(null, null)
+            val settings = Settings()
             encryptedPreferences().apply {
                 settings.automaticallyShowImages = if (contains(PrefKeys.AUTOMATICALLY_SHOW_IMAGES)) {
                     getBoolean(PrefKeys.AUTOMATICALLY_SHOW_IMAGES, false)
@@ -386,6 +396,8 @@ object LocalPreferences {
                 } else {
                     null
                 }
+
+                settings.preferredLanguage = getString(PrefKeys.PREFERRED_LANGUAGE, "")
             }
 
             val a = Account(

app/src/main/java/com/vitorpamplona/amethyst/model/Settings.kt

@@ -4,6 +4,7 @@ import androidx.compose.runtime.Stable
 
 @Stable
 class Settings(
-    var automaticallyShowImages: Boolean?,
+    var automaticallyShowImages: Boolean? = null,
-    var automaticallyStartPlayback: Boolean?
+    var automaticallyStartPlayback: Boolean? = null,
+    var preferredLanguage: String? = null
 )

app/src/main/java/com/vitorpamplona/amethyst/ui/MainActivity.kt

@@ -10,11 +10,13 @@ import android.os.Bundle
 import android.util.Log
 import androidx.activity.compose.setContent
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatDelegate
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Surface
 import androidx.compose.ui.Modifier
-import androidx.fragment.app.FragmentActivity
+import androidx.core.os.LocaleListCompat
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.BuildConfig
 import com.vitorpamplona.amethyst.LocalPreferences
@@ -42,7 +44,7 @@ import kotlinx.coroutines.launch
 import java.net.URLEncoder
 import java.nio.charset.StandardCharsets
 
-class MainActivity : FragmentActivity() {
+class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -53,6 +55,11 @@ class MainActivity : FragmentActivity() {
         LocalPreferences.migrateSingleUserPrefs()
         val themeViewModel = ThemeViewModel()
         themeViewModel.onChange(LocalPreferences.getTheme())
+        val language = LocalPreferences.getPreferredLanguage()
+        if (language.isNotBlank()) {
+            val appLocale: LocaleListCompat = LocaleListCompat.forLanguageTags(language)
+            AppCompatDelegate.setApplicationLocales(appLocale)
+        }
 
         setContent {
             AmethystTheme(themeViewModel) {

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/SettingsScreen.kt

@@ -1,10 +1,13 @@
 package com.vitorpamplona.amethyst.ui.screen.loggedIn
 
+import android.content.Context
+import androidx.appcompat.app.AppCompatDelegate
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
 import androidx.compose.material.Button
 import androidx.compose.material.DropdownMenuItem
 import androidx.compose.material.ExperimentalMaterialApi
@@ -23,13 +26,53 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.intl.Locale
+import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.core.os.LocaleListCompat
 import com.vitorpamplona.amethyst.LocalPreferences
+import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.ServiceManager
 import com.vitorpamplona.amethyst.ui.theme.DoubleVertSpacer
 import com.vitorpamplona.amethyst.ui.theme.StdPadding
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
+import org.xmlpull.v1.XmlPullParser
+import org.xmlpull.v1.XmlPullParserException
+import java.io.IOException
+
+fun Context.getLocaleListFromXml(): LocaleListCompat {
+    val tagsList = mutableListOf<CharSequence>()
+    try {
+        val xpp: XmlPullParser = resources.getXml(R.xml.locales_config)
+        while (xpp.eventType != XmlPullParser.END_DOCUMENT) {
+            if (xpp.eventType == XmlPullParser.START_TAG) {
+                if (xpp.name == "locale") {
+                    tagsList.add(xpp.getAttributeValue(0))
+                }
+            }
+            xpp.next()
+        }
+    } catch (e: XmlPullParserException) {
+        e.printStackTrace()
+    } catch (e: IOException) {
+        e.printStackTrace()
+    }
+
+    return LocaleListCompat.forLanguageTags(tagsList.joinToString(","))
+}
+
+fun Context.getLangPreferenceDropdownEntries(): Map<String, String> {
+    val localeList = getLocaleListFromXml()
+    val map = mutableMapOf<String, String>()
+
+    for (a in 0 until localeList.size()) {
+        localeList[a].let {
+            map.put(it!!.getDisplayName(it).replaceFirstChar { char -> char.uppercase() }, it.toLanguageTag())
+        }
+    }
+    return map
+}
 
 @Composable
 fun SettingsScreen(
@@ -59,6 +102,16 @@ fun SettingsScreen(
     }
 
     val context = LocalContext.current
+
+    val languageEntries = context.getLangPreferenceDropdownEntries()
+    val languageList = languageEntries.keys.toTypedArray()
+    var languageIndex = languageEntries.values.toTypedArray().indexOf(Locale.current.toLanguageTag())
+    if (languageIndex == -1) languageIndex = languageEntries.values.toTypedArray().indexOf(Locale.current.language)
+    if (languageIndex == -1) languageIndex = languageEntries.values.toTypedArray().indexOf("en")
+    val selectedLanguage = remember {
+        mutableStateOf(languageList[languageIndex])
+    }
+
     Column(
         StdPadding,
         horizontalAlignment = Alignment.CenterHorizontally
@@ -67,9 +120,10 @@ fun SettingsScreen(
 
         Section("Application preferences")
 
-        Text(
+        DropDownSettings(
-            "Theme",
+            selectedItem = selectedLanguage,
-            fontWeight = FontWeight.Bold
+            listItems = languageList,
+            title = "Language"
         )
 
         DropDownSettings(
@@ -78,19 +132,12 @@ fun SettingsScreen(
             title = "Theme"
         )
 
-        Text(
-            "Media",
-            fontWeight = FontWeight.Bold
-        )
-
         DropDownSettings(
             selectedItem = selectedItem,
             listItems = selectedItens,
             title = "Automatically load images/gifs"
         )
 
-        Spacer(modifier = DoubleVertSpacer)
-
         DropDownSettings(
             selectedItem = selectedVideoItem,
             listItems = selectedItens,
@@ -114,12 +161,15 @@ fun SettingsScreen(
                         else -> null
                     }
                     accountViewModel.changeTheme(selectedTheme.value)
+
                     scope.launch(Dispatchers.IO) {
                         accountViewModel.updateGlobalSettings(automaticallyShowImages, automaticallyStartPlayback)
                         LocalPreferences.saveToEncryptedStorage(accountViewModel.account)
                         LocalPreferences.updateTheme(selectedTheme.value)
                         ServiceManager.pause()
                         ServiceManager.start(context)
+                        val appLocale: LocaleListCompat = LocaleListCompat.forLanguageTags(languageEntries[selectedLanguage.value])
+                        AppCompatDelegate.setApplicationLocales(appLocale)
                     }
                 }
             ) {
@@ -140,6 +190,7 @@ fun DropDownSettings(
         mutableStateOf(false)
     }
     ExposedDropdownMenuBox(
+        modifier = Modifier.padding(8.dp),
         expanded = expanded,
         onExpandedChange = {
             expanded = !expanded

app/src/main/res/values-night/themes.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:tools="http://schemas.android.com/tools">
-    <style name="Theme.Amethyst" parent="android:Theme.Material.Light.NoActionBar">
+    <style name="Theme.Amethyst" parent="Theme.AppCompat.Light.NoActionBar">
         <item name="android:statusBarColor">@color/purple_700</item>
         <item name="android:windowBackground">@color/black</item>
         <item name="android:windowLayoutInDisplayCutoutMode" tools:ignore="NewApi">shortEdges</item>\

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

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:tools="http://schemas.android.com/tools">
-    <style name="Theme.Amethyst" parent="android:Theme.Material.Light.NoActionBar">
+    <style name="Theme.Amethyst" parent="Theme.AppCompat.Light.NoActionBar">
         <item name="android:statusBarColor">@color/purple_700</item>
         <item name="android:windowLayoutInDisplayCutoutMode" tools:ignore="NewApi">shortEdges</item>
     </style>

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

@@ -7,17 +7,16 @@
     <locale android:name="fa"/>
     <locale android:name="fr"/>
     <locale android:name="hu"/>
-    <locale android:name="night"/>
     <locale android:name="nl"/>
-    <locale android:name="pr-rBR"/>
+    <locale android:name="pt-BR"/>
     <locale android:name="ru"/>
-    <locale android:name="sv-rSE"/>
+    <locale android:name="sv-SE"/>
     <locale android:name="ta"/>
     <locale android:name="tr"/>
     <locale android:name="uk"/>
     <locale android:name="zh"/>
-    <locale android:name="zh-rHK"/>
+    <locale android:name="zh-HK"/>
-    <locale android:name="zh-rTW"/>
+    <locale android:name="zh-TW"/>
     <locale android:name="en"/>
     <locale android:name="en-GB"/>
 </locale-config>