ViewPager in fragment Class is not working properly

Question

Am using ViewPager inside the Fragment class.In that ViewPager have three pages in each pages am show customized list view.ViewPager Some time shows the list view properly in some time it shows blank page.

Fragment class with ViewPager

public class Schedule extends Fragment{

RelativeLayout schedule_lay;
Schedule_fragment_adapter sfadp;
ViewPager pager;
TitlePageIndicator tpi;
PagerTabStrip pts;

@Override
public View onCreateView(LayoutInflater inflater,final ViewGroup container, Bundle savedInstanceState) {
    if (container == null) {
        return null;
    }

    schedule_lay = (RelativeLayout) inflater.inflate(R.layout.schedule, container, false);
    pager = (ViewPager) schedule_lay.findViewById(R.id.viewpager);
    pts = (PagerTabStrip)schedule_lay.findViewById(R.id.page_title_indicator);
    pts.setDrawFullUnderline(false);

    pts.setTextSize(TypedValue.COMPLEX_UNIT_SP, 22);
    pts.setTabIndicatorColor(Color.parseColor("#ff3824"));

    initialisePaging();

    return schedule_lay;
}

private void initialisePaging() {

    List<Fragment> fragments = new Vector<Fragment>();
    fragments.add(Fragment.instantiate(getActivity(), Ongoing.class.getName()));
    fragments.add(Fragment.instantiate(getActivity(), Upcoming.class.getName()));
    fragments.add(Fragment.instantiate(getActivity(), Recent.class.getName()));
    this.sfadp  = new Schedule_fragment_adapter(super.getActivity().getSupportFragmentManager(), fragments);

    pager.setAdapter(this.sfadp);
}
}

FragmentPagerAdapter

public class Schedule_fragment_adapter extends FragmentPagerAdapter {

private final List<Fragment> fragments;

/**
 * @param fm
 * @param fragments
 */
public Schedule_fragment_adapter(FragmentManager fm,
        List<Fragment> fragments) {
    super(fm);
    this.fragments = fragments;
}

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

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

@Override
public CharSequence getPageTitle(int position) {
    switch (position) {
    case 0:
        return "Ongoing";
    case 1:
        return "Upcoming";
    case 2:
        return "Recent";
    }
    return null;
}
}

Customized list view Class(My all three customized list class like below class )

 public class Ongoing extends Fragment{

RelativeLayout ongoing_lay;
ListView ongoing_matches_lv;
ArrayList<Item> ongoing_matches = new ArrayList<Item>();

@Override
public View onCreateView(LayoutInflater inflater,final ViewGroup container, Bundle savedInstanceState) {
    if (container == null) {
        return null;
    }

    ongoing_lay = (RelativeLayout) inflater.inflate(R.layout.ongoing, container, false);


    return ongoing_lay;
}
}

Am not able find out my issue.Can any one know help me to solve this issue.

I had a similar issue while coming back from the last fragment the first fragment will go while and reload.I was pulling data from database and populating in the listview. — playmaker420, Mar 28 '14 at 11:00
Yes.For my requirement that done the trick. May be there will be a fix for it — playmaker420, Mar 28 '14 at 11:09
Upvoted! I was using Loader manager and simple cursor adapter so i didnt wanted to mess with that.I think my problem was i was using Nested fragments — playmaker420, Mar 28 '14 at 11:15

score 11 · Accepted Answer · answered Mar 28 '14 at 11:08

11

Use getChildFragmentManager() instead of super.getActivity().getSupportFragmentManager() when you instantiate the adapter at the line:

this.sfadp  = new Schedule_fragment_adapter(super.getActivity().getSupportFragmentManager(), fragments);

answered Mar 28 '14 at 11:08

user

86,916
18
197
190

Thank you.Its Working fine.I have one more doubt.When i swipe this view pager.it was little bit slow.how can i improve it. – Yugesh Mar 28 '14 at 11:14
@Yugesh Either improve your layouts(to have fewer views and a shallow view hierarchy) or check if you're not doing any heavy initialization in the fragments that are used in the `ViewPager`. There isn't something obvious from the code you posted that would suggest something problematic. – user Mar 28 '14 at 11:19

ViewPager in fragment Class is not working properly

1 Answers1