Ok, I know title sound crazy :)
Here is what I want. My app is localized for device user but information I send back to server need to be all English. My default app
If you use JB 2.2.x or above (basically API >= 17) you can use createConfigurationContext do:
public String translate(Locale locale, int resId) {
Configuration config = new Configuration(context.getResources().getConfiguration());
config.setLocale(locale);
return context.createConfigurationContext(config).getText(resId);
}