onOptionsItemSelected在片段backstack中不起作用

Question

当在堆栈中添加片段时，选项菜单单击不起作用。第一个片段选项项单击已完成。

Fragment Backstack的代码

public void setFragment(Fragment fragment, int title_res) {
    String backStateName = fragment.getClass().getName();
    FragmentManager manager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = manager.beginTransaction();
    if (editable_mode) {
        boolean fragmentPopped = manager.popBackStackImmediate(backStateName, 0);
        Log.e("fragmentPopped", fragmentPopped + "");
        if (fragmentPopped) {
            fragmentTransaction.remove(fragment);
        }
        fragmentTransaction.add(R.id.view_container, fragment);
        fragmentTransaction.addToBackStack(backStateName);
        fragmentTransaction.commit();
    } else {
        boolean fragmentPopped = manager.popBackStackImmediate(backStateName, 0);
        Log.e("fragmentPopped", fragmentPopped + "");
        if (!fragmentPopped) { //fragment not in back stack, create it.
            fragmentTransaction.add(R.id.view_container, fragment);
            fragmentTransaction.commit();
        }
    }

    getSupportActionBar().setTitle(title_res);
}

Answer 1

片段onCreate（）中的

添加此行

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

更新

如果从基础活动添加菜单，则将此代码添加到片段onResume（）中，并从onCreate（）中删除setHasOptionsMenu（true）

    @Override
    public void onResume() {
        super.onResume();
        ActivityCompat.invalidateOptionsMenu(getActivity());
    }