在類別外獲取標籤位置

Question

我有一個日曆應用程序。我正在使用ActionBarSherlock和Tabs。我還在操作欄中實施了選項菜單。當選中選項卡時，我希望操作欄中的一個菜單項的行爲不同。

如何獲得onOptionsItemSelected(MenuItem item)方法中的製表符位置，以便我可以相應地編寫菜單項？

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    ActionBar bar = getSupportActionBar(); 
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); 

    ActionBar.Tab Tab1 = bar.newTab(); 
    ActionBar.Tab Tab2 = bar.newTab(); 

    Tab1.setText("Tab1"); 
    Tab2.setText("Tab2"); 

    Tab1.setTabListener(new MyTabListener()); 
    Tab2.setTabListener(new MyTabListener()); 

    bar.addTab(Tab1); 
    bar.addTab(Tab2); 

} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    Intent newActivity; 
    // Handle item selection 
    switch (item.getItemId()) { 
     case android.R.id.home: 
      // app icon in action bar clicked; go home 
      newActivity = new Intent(this, Main.class); 
      newActivity.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
      startActivity(newActivity); 
     return true; 
     case R.id.menu_today_date: 
        //if condition here based on tabs selected 
      CalendarFragment frag = new CalendarFragment(); 
      FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 
      ft.replace(android.R.id.content, frag); 
      ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN); 
      ft.commit(); 

      return true; 
     case R.id.menu_prefs: 
      newActivity = new Intent(this, Settings.class); 
      startActivityForResult(newActivity, requestCode); 
      return true; 
     default: 
      return super.onOptionsItemSelected(item); 
    } 
} 


private class MyTabListener implements ActionBar.TabListener 
{ 
    @Override 
    public void onTabSelected(Tab tab, FragmentTransaction ft) { 
     if(tab.getPosition()==0) 
     { 
      CalendarFragment frag = new CalendarFragment(); 
      ft.replace(android.R.id.content, frag); 
     } 
     else 
     { 

      ConverterFragment frag = new ConverterFragment(); 
      ft.replace(android.R.id.content, frag); 
     } 
    } 
    @Override 
    public void onTabUnselected(Tab tab, FragmentTransaction ft) { 
     // TODO Auto-generated method stub 
    } 
    @Override 
    public void onTabReselected(Tab tab, FragmentTransaction ft) { 
     // TODO Auto-generated method stub 
    } 
} 

Answer 1

我不能讓標籤的位置，但是這是我最後只是：

private int tabSelected = 0; 

@Override 
public void onTabSelected(Tab tab, FragmentTransaction ft) { 
    if(tab.getPosition()==0) 
    { 
     tabSelected = 0; 
     CalendarFragment frag = new CalendarFragment(); 
     ft.replace(android.R.id.content, frag); 
    } 
    else 
    { 
     tabSelected = 1; 
     ConverterFragment frag = new ConverterFragment(); 
     ft.replace(android.R.id.content, frag); 
    } 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    Intent newActivity; 
    // Handle item selection 
    switch (item.getItemId()) 
     case R.id.menu_today_date: 
      FragmentTransaction ft = getSupportFragmentManager().beginTransaction(); 
      if (tabSelected == 0){ 
       CalendarFragment frag = new CalendarFragment(); 
       ft.replace(android.R.id.content, frag); 


      } 
      else { 
       ConverterFragment frag = new ConverterFragment(); 
       ft.replace(android.R.id.content, frag); 
      } 

      ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE); 
      ft.commit(); 

     default: 
      return super.onOptionsItemSelected(item); 
    } 
}