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copied!<p>This code snippet does what you need, I've tested it. Suppose for the example you want the user to be able to switch language through a menu from your main activity. You can do it through saving a language flag as a user preference and check it on "onCreate()" and on "onConfigurationChanged()" as follows:</p> <pre><code> public class MainActivity extends Activity { SharedPreferences mPrefs1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mPrefs1 = PreferenceManager.getDefaultSharedPreferences(this); String languageToLoad = mPrefs1.getString("languagePref", Locale.getDefault().getLanguage()); Locale locale = new Locale(languageToLoad); Locale.setDefault(locale); Configuration config = new Configuration(); config.locale = locale; getBaseContext().getResources().updateConfiguration(config,getBaseContext().getResources().getDisplayMetrics()); setContentView(R.layout.activity_main); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mPrefs1 = PreferenceManager.getDefaultSharedPreferences(this); String languageToLoad = mPrefs1.getString("languagePref", Locale.getDefault().getLanguage()); Locale locale = new Locale(languageToLoad); Locale.setDefault(locale); Configuration config = new Configuration(); config.locale = locale; getBaseContext().getResources().updateConfiguration(config,getBaseContext().getResources().getDisplayMetrics()); setContentView(R.layout.activity_main); } // Declaring the Menu options @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main_menu, menu); return true; } //handle menu item selection public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_switch_language: String languageToLoad = getResources().getString(R.string.switch_language); mPrefs1 = PreferenceManager.getDefaultSharedPreferences(this); SharedPreferences.Editor editor = mPrefs1.edit(); editor.putString("languagePref", languageToLoad); editor.commit(); // Very important to save the preference finish(); startActivity(getIntent()); return true; default: return super.onOptionsItemSelected(item); } } </code></pre> <p>}</p>

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