Android change language programmatically

取得系統目前語系

Locale currentLanguage = getResources().getConfiguration().locale;
String language=currentLanguage .toString();


更改語系

Locale locale;
locale = new Locale("zh","TW");   //locale = new Locale("en");
Locale.setDefault(locale);
Configuration config = a.getBaseContext().getResources().getConfiguration();
config.locale = locale;
a.getBaseContext().getResources().updateConfiguration(config,
a.getBaseContext().getResources().getDisplayMetrics());