不能刪除另一個兒童片段

Question

我在另一個片段中有一個片段，我添加並確保它成功，但是當我想刪除它時，它不起作用，並始終是它的位置。

主要活動片段

public class MainActivityFragment extends Fragment { 
    ScreenUtility screenUtility; 

    public MainActivityFragment() { 
    } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 

     View v = inflater.inflate(R.layout.fragment_main, container, false); 

     screenUtility = new ScreenUtility(getActivity()); 

     TotalAmountFragment totalAmountFragment; 
     totalAmountFragment = new TotalAmountFragment(); 

     if (screenUtility.getOrientation() == 1){ 
      getChildFragmentManager() 
        .beginTransaction() 
        .add(R.id.main_total_amount_fragment_container, totalAmountFragment, "totalPrice") 
        .commit(); 
     } else if (screenUtility.getOrientation() == 2 && getChildFragmentManager().findFragmentByTag("totalPrice") != null){ 
      FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction(); 
      transaction.remove(totalAmountFragment); 
      transaction.commit(); 
      transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_CLOSE); 
     } 
     return v; 
    } 
} 

XML文件

... 
<FrameLayout 
      android:id="@+id/main_total_amount_fragment_container" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:foregroundGravity="center" 
      android:layout_centerHorizontal="true"/> 

我應該怎麼辦？我做了我想到的任何事情。

Answer 1

試試這個代碼

FragmentManager fm = getActivity().getSupportFragmentManager(); 
if (fm.getBackStackEntryCount() != 0) { 
     fm.popBackStack(); 
    } 

Answer 2

if (screenUtility.getOrientation() == 1){ 
     getFragmentManager() 
       .beginTransaction() 
       .add(R.id.main_total_amount_fragment_container, totalAmountFragment, "totalPrice") 
       .commit(); 
    } else { 
     Fragment priceFragment = getActivity().getSupportFragmentManager().findFragmentByTag("totalPrice"); 
     if (priceFragment != null){ 
      getActivity().getSupportFragmentManager().beginTransaction().remove(priceFragment).commit(); 
     } 
    }