CODEWITHSUNDEEP
androidandroid-layoutandroid-fragmentsandroid-viewpager
alacret
alacret

Reputation: 639

How can i Force a ViewPager to make their Fragments to be recreated?

Scenarios:

I have a Fragment with a ViewPager, that it has a FragmentPagerAdapter that provides 3 Fragments.

So the first time my application loads, the 3 tab fragments looks just fine.

When I navigate in the application, i do a FragmentManager.replace to load another fragment.

When i go back, or navigate to the Main View (the tabbed View) my first and second tabs are blank.

I debugged the app, and the Fragment.onDestroyView never gets call on the Tab fragment, so when it shows again, the Fragment.onCreateView never gets called again, so my view is blank.

If I navigate to the third Tab in the Tabbed Fragment, then the Fragment.onDestroy gets called by the PageAdapter (i supposed because of the 1 offLimit on the ViewPager)

So, my question is, once another Fragment is loaded in my Activity, and then i go back, or navigate to the Tabbed View, how can i force the ViewPager, or the PageAdapter, or even the Fragment itself to be recreated.

So far i try to do a FragmentManager.remove(fragment) with the TabView without any look, also, every time, i navigate to the Tabbed View i pass a new instance to the FragmentManager.replace method, it seems that every time, he pulls the same object from the FragmentManager.

TabView (Fragment):

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    view = inflater.inflate(R.layout.tab_view, container, false);
    viewPager = (ViewPager) view.findViewById(R.id.view_iam);
    final PagerAdapter pagerAdapter = new MyFragmentAdapter(getActivity().getSupportFragmentManager());
    viewPager.setAdapter(pagerAdapter);
    return view;
}

PageAdapter:

private static class MyFragmentAdapter extends FragmentPagerAdapter {
    private Fragment[] tabs;
    private String[] names;

    public MyFragmentAdapter(FragmentManager fm) {
        super(fm);
        tabs = new Fragment[]{new FlightsView(), new MyFlightsRequestView(),
                new MyFlightsView()};
        names = new String[]{"VUELOS", "SOLICITUDES", "MIS VUELOS"};
    }

    @Override
    public Fragment getItem(int position) {
        return tabs[position];
    }

    @Override
    public int getCount() {
        return tabs.length;
    }

    @Override
    public String getPageTitle(int position) {
        return names[position];
    }

}

FlightsView (One of the Tab Fragments)

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.view_flight, container, false);
    recycle_view = (RecyclerView) view.findViewById(R.id.recycler_view);
    progressBar = (ProgressBar) view.findViewById(R.id.progress_bar);

    setHasOptionsMenu(true);
    return view;
}

Upvotes: 3

Views: 1278

Answers (1)

eminuluyol
eminuluyol

Reputation: 237

Can you please try to extend your adapter from FragmentStatePagerAdapter instead of FragmentPagerAdapter

Upvotes: 7

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