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Improve multi-language support (bepass-org#347)
On issue bepass-org#292 - Based on the [best practices](https://developer.android.com/guide/topics/resources/app-languages) recommended by Google - If other languages are added, there is no need to do anything manually.
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103 changes: 28 additions & 75 deletions
103
app/src/main/java/org/bepass/oblivion/utils/LocaleHandler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,101 +1,54 @@ | ||
| package org.bepass.oblivion.utils; | ||
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| import android.annotation.SuppressLint; | ||
| import android.app.Activity; | ||
| import android.app.AlertDialog; | ||
| import android.content.Context; | ||
| import android.content.DialogInterface; | ||
| import android.content.Intent; | ||
| import android.content.res.Configuration; | ||
| import android.content.res.Resources; | ||
| import android.os.Build; | ||
| import android.util.DisplayMetrics; | ||
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| import androidx.appcompat.app.AppCompatDelegate; | ||
| import androidx.core.os.LocaleListCompat; | ||
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| import com.github.erfansn.localeconfigx.LocaleConfigXKt; | ||
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| import org.bepass.oblivion.R; | ||
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| import java.util.Locale; | ||
| import java.util.Objects; | ||
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| public class LocaleHandler { | ||
| private static final String SELECTED_LANGUAGE = "SelectedLanguage"; | ||
| private static final String DEFAULT_LANGUAGE = "fa"; | ||
| private static final String[] AVAILABLE_LANGUAGES = {"fa", "en", "ru", "zh"}; | ||
| private final Context context; | ||
| private final FileManager fileManager; | ||
| private final LocaleListCompat configuredLocales; | ||
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| private static final String DEFAULT_LOCALE = "fa"; | ||
| private static final String IS_SET_DEFAULT_LOCALE = "is_set_default_locale"; | ||
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| public LocaleHandler(Context context) { | ||
| this.context = context; | ||
| fileManager = FileManager.getInstance(context); | ||
| setLocale(); // Ensure the locale is set when the handler is created | ||
| } | ||
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| public void setLocale() { | ||
| String language = fileManager.getString(SELECTED_LANGUAGE, DEFAULT_LANGUAGE); | ||
| setLanguage(language); | ||
| this.configuredLocales = LocaleConfigXKt.getConfiguredLocales(context); | ||
| } | ||
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| private void setLanguage(String language) { | ||
| Locale locale = new Locale(language); | ||
| Locale.setDefault(locale); | ||
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| Resources resources = context.getResources(); | ||
| Configuration configuration = resources.getConfiguration(); | ||
| DisplayMetrics displayMetrics = resources.getDisplayMetrics(); | ||
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| configuration.setLocale(locale); | ||
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| resources.updateConfiguration(configuration, displayMetrics); | ||
| public void setPersianAsDefaultLocaleIfNeeds() { | ||
| FileManager fileManager = FileManager.getInstance(context); | ||
| if (!fileManager.getBoolean(IS_SET_DEFAULT_LOCALE)) { | ||
| AppCompatDelegate.setApplicationLocales(LocaleListCompat.create(configuredLocales.getFirstMatch(new String[] { DEFAULT_LOCALE }))); | ||
| fileManager.set(IS_SET_DEFAULT_LOCALE, true); | ||
| } | ||
| } | ||
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| public void showLanguageSelectionDialog(Runnable onLanguageSelected) { | ||
| public void showLanguageSelectionDialog() { | ||
| AlertDialog.Builder builder = new AlertDialog.Builder(context); | ||
| builder.setTitle("Select Language") | ||
| .setItems(getAvailableLanguagesNames(), new DialogInterface.OnClickListener() { | ||
| @Override | ||
| public void onClick(DialogInterface dialogInterface, int which) { | ||
| String selectedLanguage = AVAILABLE_LANGUAGES[which]; | ||
| saveSelectedLanguage(selectedLanguage); | ||
| setLanguage(selectedLanguage); | ||
| onLanguageSelected.run(); // Run the callback | ||
| } | ||
| builder.setTitle(R.string.select_language) | ||
| .setItems(getAvailableLanguagesNames(), (dialogInterface, which) -> { | ||
| Locale selectedLocale = configuredLocales.get(which); | ||
| LocaleListCompat desiredLocales = LocaleListCompat.create(selectedLocale); | ||
| AppCompatDelegate.setApplicationLocales(desiredLocales); | ||
| }) | ||
| .show(); | ||
| } | ||
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| private void saveSelectedLanguage(String language) { | ||
| fileManager.set(SELECTED_LANGUAGE, language); | ||
| } | ||
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| private String[] getAvailableLanguagesNames() { | ||
| String[] languageNames = new String[AVAILABLE_LANGUAGES.length]; | ||
| for (int i = 0; i < AVAILABLE_LANGUAGES.length; i++) { | ||
| languageNames[i] = getLanguageName(AVAILABLE_LANGUAGES[i]); | ||
| String[] languageNames = new String[configuredLocales.size()]; | ||
| for (int index = 0; index < configuredLocales.size(); index++) { | ||
| languageNames[index] = Objects.requireNonNull(configuredLocales.get(index)).getDisplayName(); | ||
| } | ||
| return languageNames; | ||
| } | ||
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| private String getLanguageName(String languageCode) { | ||
| switch (languageCode) { | ||
| case "fa": | ||
| return "Persian"; | ||
| case "en": | ||
| return "English"; | ||
| case "ru": | ||
| return "Russian"; | ||
| case "zh": | ||
| return "Chinese"; | ||
| default: | ||
| return languageCode; | ||
| } | ||
| } | ||
| @SuppressLint("ObsoleteSdkInt") | ||
| public void restartActivity(Context context) { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { | ||
| ((Activity) context).recreate(); | ||
| } else { | ||
| Intent intent = ((Activity) context).getIntent(); | ||
| context.startActivity(intent); | ||
| ((Activity) context).finish(); | ||
| context.startActivity(intent); | ||
| } | ||
| } | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| unqualifiedResLocale=en |
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