Java tutorial
//package com.java2s; import android.content.Context; import android.content.res.Configuration; import java.util.Locale; public class Main { public static void setLocale(final Context ctx, final String lang) { final Locale loc = new Locale(lang); Locale.setDefault(loc); final Configuration cfg = new Configuration(); cfg.locale = loc; ctx.getResources().updateConfiguration(cfg, null); } }