TabLayout和ViewPager-Tab在滑动抽屉项之间滑动后不起作用

Question

TabLayout和ViewPager - 在滑动抽屉项之间滑动之后，单击选项卡不起作用。

我工作的应用程序有滑动抽屉和Tablayout。 我参考本教程For Sliding Drawer 和For TabLayout。

内滑动抽屉

1. 任务列表 - >TabLayout(Tabs(Today,Monthly,Yearly))
2. 设置
3. 订单

我有滑动抽屉和Tablayout之间的问题。 第一次viewpager正确加载。但是当我移动到下一个抽屉项目（设置片段）之后，返回到TaskList选项卡片段viewpager无法加载任何片段时，在滑动该页面时，然后加载少量片段。

这里的Java代码

public class TaskListFragment extends Fragment { 
private Toolbar toolbar; 
private TabLayout tabLayout; 
private ViewPager viewPager; 

public TaskListFragment() { 
    // Required empty public constructor 
} 

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

} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    View rootView = inflater.inflate(R.layout.fragment_my_page, container, false); 

    viewPager = (ViewPager)rootView.findViewById(R.id.viewpager); 
    tabLayout = (TabLayout)rootView.findViewById(R.id.tabs); 
    tabLayout.setupWithViewPager(viewPager); 
    tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() { 
     @Override 
     public void onTabSelected(TabLayout.Tab tab) { 
      viewPager.setCurrentItem(tab.getPosition()); 

     } 

     @Override 
     public void onTabUnselected(TabLayout.Tab tab) { 

     } 

     @Override 
     public void onTabReselected(TabLayout.Tab tab) { 

     } 
    }); 

    // Inflate the layout for this fragment 
    return rootView; 
} 

private void setupViewPager(ViewPager viewPager) { 
    ViewPagerAdapter adapter = new ViewPagerAdapter(getFragmentManager()); 
    adapter.addFragment(new Mypage_TodayFragment(), "TODAY"); 
    adapter.addFragment(new Mypage_TodayFragment(), "WEEKLY"); 
    adapter.addFragment(new Mypage_TodayFragment(), "MONTHLY"); 
    viewPager.setAdapter(adapter); 
} 

class ViewPagerAdapter extends FragmentPagerAdapter { 
    private final List<Fragment> mFragmentList = new ArrayList<>(); 
    private final List<String> mFragmentTitleList = new ArrayList<>(); 

    public ViewPagerAdapter(FragmentManager manager) { 
     super(manager); 
    } 

    @Override 
    public Fragment getItem(int position) { 
     return mFragmentList.get(position); 
    } 

    @Override 
    public int getCount() { 
     return mFragmentList.size(); 
    } 

    public void addFragment(Fragment fragment, String title) { 
     mFragmentList.add(fragment); 
     mFragmentTitleList.add(title); 
    } 

    @Override 
    public CharSequence getPageTitle(int position) { 
     return mFragmentTitleList.get(position); 
    } 
} 
@Override 
public void onAttach(Activity activity) { 
    super.onAttach(activity); 
} 

@Override 
public void onDetach() { 
    super.onDetach(); 
} 

这里.XML代码

<android.support.design.widget.CoordinatorLayout 
     android:layout_width="match_parent" 
     android:layout_height="262dp" 
     android:id="@+id/view" 
     android:layout_weight="0.16"> 

     <android.support.design.widget.TabLayout 
      android:id="@+id/tabs" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      app:tabMode="fixed" 
      app:tabGravity="fill" 
      app:tabBackground="@drawable/mytabselector" 
      app:tabIndicatorColor="@color/Orange" /> 

    <android.support.v4.view.ViewPager 
     android:id="@+id/viewpager" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="50dp" 
     app:layout_behavior="@string/appbar_scrolling_view_behavior"/> 

     </android.support.design.widget.CoordinatorLayout> 

先谢谢了！

Answer 1

试试这个，而不是

ViewPagerAdapter adapter = new ViewPagerAdapter(getFragmentManager());

做

ViewPagerAdapter adapter = new ViewPagerAdapter(getChildFragmentManager());

这是因为你有一个片段viewpager，片段经理，这viewpager应该使用，使片段交易应该是儿童片段管理者