从另一个片段调用片段时更改导航抽屉

Question

View rootView = inflater.inflate(R.layout.fragment_home, container, false);

    Button btn = (Button) rootView.findViewById(R.id.find_people);
    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Fragment fragment = new FindPeopleFragment();
            if (fragment != null) {
                FragmentManager fragmentManager = getFragmentManager();
                fragmentManager.beginTransaction()
                        .replace(R.id.frame_container, fragment).commit();
            }
        }
    });

Fragment fragment = null;
    switch (position) {
    case 0:
        fragment = new HomeFragment();
        break;
    case 1:
        fragment = new FindPeopleFragment();
        break;
    case 2:
        fragment = new PhotosFragment();
        break;
    case 3:
        fragment = new CommunityFragment();
        break;

    default:
        break;
    }

    if (fragment != null) {
        FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction()
                .replace(R.id.frame_container, fragment).commit();

        // update selected item and title, then close the drawer
        mDrawerList.setItemChecked(position, true);
        mDrawerList.setSelection(position);
        setTitle(navMenuTitles[position]);
        mDrawerLayout.closeDrawer(mDrawerList);
    } else {
        // error in creating fragment
        Log.e("MainActivity", "Error in creating fragment");
    }

mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

    // setting the nav drawer list adapter
    adapter = new NavDrawerListAdapter(getApplicationContext(),
            navDrawerItems);
    mDrawerList.setAdapter(adapter);

这里是链接的代码，我正在做同样的事情链接

Answer 1

我也面临着类似的问题。我想在事件上加载下一个片段。即在主片段的打开按钮上单击，下一个片段应该被加载。当导航抽屉打开时，选择的项目应该是加载的项目。

我已经通过在导航抽屉列表对象上调用方法setItemChecked解决了这个问题。

if (mDrawerListView != null) {
    mDrawerListView.setItemChecked(position, true);

不确定这是否是正确的方法，但它对我有效。