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Fix Android 13+ per-app language sync using LocaleManager API #36

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Fix Android 13+ per-app language sync using LocaleManager API #36

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e5dbbe6
Fix Android per-app language reading with LocaleManager
nesquikm Jan 28, 2026
8b84aa3
Use LocaleManager directly for Android 13+ per-app language
nesquikm Jan 28, 2026
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19 changes: 12 additions & 7 deletions android/src/main/java/com/localizationsettings/LocalizationSettingsModule.kt
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Original file line number Diff line number Diff line change
@@ -1,8 +1,10 @@
package com.localizationsettings

import android.app.LocaleManager
import android.content.Context
import android.content.SharedPreferences
import android.os.Build
import android.os.LocaleList
import androidx.appcompat.app.AppCompatDelegate
import androidx.core.os.LocaleListCompat
import com.facebook.react.bridge.Promise
Expand Down Expand Up @@ -41,14 +43,14 @@ class LocalizationSettingsModule internal constructor(context: ReactApplicationC
private fun getCurrentLanguage(): String? {
// If API version is >= 33, then use per-app language settings
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
val currentLocaleName = if (!AppCompatDelegate.getApplicationLocales().isEmpty) {
// get per-app language
AppCompatDelegate.getApplicationLocales()[0]?.toLanguageTag()
// Use LocaleManager directly to read per-app language set in Android Settings
val localeManager = reactApplicationContext.getSystemService(LocaleManager::class.java)
val appLocales = localeManager?.applicationLocales
return if (appLocales != null && !appLocales.isEmpty) {
appLocales[0]?.toLanguageTag()
} else {
// Fallback to the default System Locale
Locale.getDefault().toLanguageTag()
}
return currentLocaleName
}
// if API is < 33, then use SharedPreferences with fallback to default System Locale
if (getPreferences().getString("languageFrom", null) == Locale.getDefault().language) {
Expand All @@ -68,8 +70,11 @@ class LocalizationSettingsModule internal constructor(context: ReactApplicationC
private fun setCurrentLanguage(language: String) {
// If API version is >= 33, then use per-app language settings
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
val localeList = LocaleListCompat.forLanguageTags(getLanguageTag(language))
AppCompatDelegate.setApplicationLocales(localeList)
// Use LocaleManager directly to ensure sync with Android Settings
val localeManager = reactApplicationContext.getSystemService(LocaleManager::class.java)
val languageTag = getLanguageTag(language)
val localeList = LocaleList.forLanguageTags(languageTag)
localeManager?.applicationLocales = localeList
} else {
// if API is < 33, then set SharedPreferences language
val editor = getEditor();
Expand Down