Add in-app language selection support.
parent
4977092f7a
commit
68b82c168e
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package org.thoughtcrime.securesms.util;
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import android.app.Activity;
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import android.content.Intent;
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import android.content.res.Configuration;
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import android.os.Build;
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import android.preference.PreferenceManager;
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import android.util.Log;
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import org.thoughtcrime.securesms.ApplicationPreferencesActivity;
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import java.util.Locale;
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public class DynamicLanguage {
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private static final String DEFAULT = "zz";
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private Locale currentLocale;
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public void onCreate(Activity activity) {
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currentLocale = getSelectedLocale(activity);
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setActivityLocale(activity, currentLocale);
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}
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public void onResume(Activity activity) {
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if (!currentLocale.getLanguage().equalsIgnoreCase(getSelectedLocale(activity).getLanguage())) {
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Intent intent = activity.getIntent();
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intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
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activity.startActivity(intent);
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR) {
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OverridePendingTransition.invoke(activity);
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}
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activity.finish();
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR) {
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OverridePendingTransition.invoke(activity);
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}
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}
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}
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private static void setActivityLocale(Activity activity, Locale selectedLocale) {
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Configuration configuration = activity.getResources().getConfiguration();
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if (!configuration.locale.getLanguage().equalsIgnoreCase(selectedLocale.getLanguage())) {
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configuration.locale = selectedLocale;
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activity.getResources().updateConfiguration(configuration,
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activity.getResources().getDisplayMetrics());
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}
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}
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private static Locale getActivityLocale(Activity activity) {
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return activity.getResources().getConfiguration().locale;
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}
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private static Locale getSelectedLocale(Activity activity) {
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String language = PreferenceManager.getDefaultSharedPreferences(activity)
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.getString(ApplicationPreferencesActivity.LANGUAGE_PREF, DEFAULT);
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if (language.equals(DEFAULT)) return Locale.getDefault();
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else return new Locale(language);
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}
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private static final class OverridePendingTransition {
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static void invoke(Activity activity) {
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activity.overridePendingTransition(0, 0);
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}
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}
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}
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