Reputation: 655
I have three tabs.For testing purposes,I am setting the same fragment to all the three tabs.Fragment has a recycler view. I am able to view the recycler view only in first fragment.
Activity Code:
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new TrialsFragment(), getString(R.string.camps));
adapter.addFragment(new TrialsFragment(), getString(R.string.trials));
adapter.addFragment(new TrialsFragment(), getString(R.string.events));
viewPager.setAdapter(adapter);
Fragment Code:
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
recyclerView = (RecyclerView) getActivity().findViewById(R.id.recycler);
adapter = new TrialsRecyclerViewAdapter();
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.setAdapter(adapter);
}
Adapter code:
public class TrialsRecyclerViewAdapter extends RecyclerView.Adapter<TrialsRecyclerViewAdapter.ViewHolder> {
String[] names = {"Sample Name","Sample Name","Sample Name","Sample Name","Sample Name"};
String[] regNos ={"12345678","12345678","12345678","12345678","12345678"};
@Override
public TrialsRecyclerViewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
CardView cv = (CardView) LayoutInflater.from(parent.getContext())
.inflate(R.layout.trial_card, parent, false);
return new ViewHolder(cv);
}
@Override
public void onBindViewHolder(TrialsRecyclerViewAdapter.ViewHolder holder, int position) {
final CardView cardView = holder.cardView;
TextView name = (TextView)cardView.findViewById(R.id.trial_name);
TextView regNumber = (TextView)cardView.findViewById(R.id.trial_start_end);
name.setText(names[position]);
regNumber.setText(regNos[position]);
cardView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
}
@Override
public int getItemCount() {
return names.length;
}
public static class ViewHolder extends RecyclerView.ViewHolder
{
private CardView cardView;
public ViewHolder(CardView v)
{
super(v);
cardView = v;
}
}
}
When the activity is started, RecyclerView is visible in first tab only. If I swipe the tabs, then it becomes visible in second tab only.
I observed the following error while debugging it:
No adapter attached; skipping layout
Upvotes: 2
Views: 2099
Reputation: 1006614
recyclerView = (RecyclerView) getActivity().findViewById(R.id.recycler);
This is very wrong. Move your logic from onActivityCreated()
into onViewCreated()
, and get the fragment's own RecyclerView
. Each fragment should be creating its own RecyclerView
in onCreateView()
, which will be the contents of that page of the ViewPager
.
Upvotes: 4