Viveka Patel Viveka Patel - 2 months ago 7
Android Question

TabLayout and ViewPager -Tabs doesn't work after swiping between sliding drawer items

TabLayout and ViewPager - Click on tabs doesn't work after swiping between sliding drawer item.

I work on app that have Sliding drawer and Tablayout.
I refer this tutorials For Sliding Drawer
and For TabLayout.

Inside Sliding Drawer


  1. TaskList -->
    TabLayout(Tabs(Today,Monthly,Yearly))

  2. Settings

  3. Orders



I have issue between Sliding Drawer and Tablayout.
first time viewpager loads correctly. but when i move to next drawer item like (Settings Fragment) after that back to the TaskList tab fragment viewpager cant load any fragment,when swipe that pager then load few fragment.

Here Java Code

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();
}


Here .XML Code

<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>


Thanks in Advance!!

Answer

Try this instead of

ViewPagerAdapter adapter = new ViewPagerAdapter(getFragmentManager());

do

ViewPagerAdapter adapter = new ViewPagerAdapter(getChildFragmentManager());

This is because since you have a viewpager in a fragment, the fragment manager that this viewpager should be using to make fragment transactions should be a childfragmentmanager