android-actionbar - 操作栏自动切换选项卡：

Question

我正在实现一个应用程序，用户可以在一个单独的选项卡中搜索一些歌曲。歌曲的搜索结果是歌词、含义等信息。从结果中，用户可以将某些歌曲标记为收藏在另一个选项卡中。当我单击最喜欢的歌曲选项卡时，它应该切换到带有搜索结果片段的第一个选项卡。以下是更具体的细节：

• 主要活动产生创建 2 个选项卡的操作栏。
• 搜索选项卡 - 单独的片段，结果 - 单独的片段

• 收藏夹选项卡 - 单独的片段

  public class TabsListener<T extends Fragment> implements ActionBar.TabListener {
      private Fragment mFragment;
      private final Activity mActivity;
      private final String mTag;
      private final Class<T> mClass;
  
  /** Constructor used each time a new tab is created.
    * @param activity  The host Activity, used to instantiate the fragment
    * @param tag  The identifier tag for the fragment
    * @param clz  The fragment's Class, used to instantiate the fragment
    */
  public TabsListener(Activity activity, String tag, Class<T> clz) {
      mActivity = activity;
      mTag = tag;
      mClass = clz;
  }
  
  /* The following are each of the ActionBar.TabListener callbacks */
  
  @SuppressLint("NewApi")
  public void onTabSelected(Tab tab, FragmentTransaction ft) {
      // Check if the fragment is already initialized
      if (mFragment == null) {
          // If not, instantiate and add it to the activity
          mFragment = Fragment.instantiate(mActivity, mClass.getName());
          ft.add(android.R.id.content, mFragment, mTag);
      } else {
          // If it exists, simply attach it in order to show it
          ft.attach(mFragment);
      }
  }
  
  @SuppressLint("NewApi")
  public void onTabUnselected(Tab tab, FragmentTransaction ft) {
      if (mFragment != null) {
          // Detach the fragment, because another one is being attached
          ft.detach(mFragment);
          //ft.remove(mFragment);
      }
  }
  
  @SuppressLint("NewApi")
  public void onTabReselected(Tab tab, FragmentTransaction ft) {
          ft.attach(mFragment);
      // User selected the already selected tab. Usually do nothing.
  }
  

  }

如何以编程方式为操作栏实现从一个选项卡到另一个选项卡的切换？