protected void showLanguage(String language) {
    //设置应用语言类型
    Resources resources = getResources();
    Configuration config = resources.getConfiguration();
    DisplayMetrics dm = resources.getDisplayMetrics();
    if (language.equals("zh")) {
      config.locale = Locale.SIMPLIFIED_CHINESE;
    } else {
      config.locale = Locale.ENGLISH;
    }
    resources.updateConfiguration(config, dm);
    //保存设置语言的类型（这个里面我先保存一下，下面会讲到他的用处）
    PreferenceUtil.commitString("language", language);
  }

 @Override
  protected void onResume() {
    super.onResume();
    String LAN = PreferenceUtil.getString("language","");
    Locale locale = Locale.getDefault();
    String language = locale.getLanguage();
    Log.i("语言————————",language);
    if(!language.equals("")){
      if(!LAN.equals(language)){
        freshView();//重新启动MainActivity

      }
    }
    showLanguage(language);
  }


   private void freshView(){
    Intent intent = new Intent(this, MainActivity.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
    startActivity(intent);

  }