Android 国际化 一键切换语言

package dangdang.cn.testproject3; import android.content.Intent; import android.content.res.Configuration; import android.os.Build; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.DisplayMetrics; import android.view.View; import java.util.Locale; public class MainActivity extends AppCompatActivity implements View.OnClickListener{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); findViewById(R.id.simple_zh_btn).setOnClickListener(this); findViewById(R.id.us_btn).setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.simple_zh_btn: changeAppLanguage(Locale.SIMPLIFIED_CHINESE); break; case R.id.us_btn: changeAppLanguage(Locale.US); break; default: break; } } /** * 更改应用语言 * * @param locale */ public void changeAppLanguage(Locale locale) { DisplayMetrics metrics = getResources().getDisplayMetrics(); Configuration configuration = getResources().getConfiguration(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { configuration.setLocale(locale); } else { configuration.locale = locale; } getResources().updateConfiguration(configuration, metrics); onConfigurationChanged(configuration); //重新启动Activity Intent intent = new Intent(this, MainActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); startActivity(intent); } }