Recyclerview not call onCreateViewHolder

Question

My RecyclerView does not call onCreateViewHolder, onBindViewHolder even MenuViewHolder constructor, therefore nothing app

Answer 1

I had the same problem, because I was using android.support.constraint.ConstraintLayout in layout resource. Changing to FrameLayout helped.

Answer 2

I really really hope this helps someone someday. I just spend over an hour on this one going nuts!

I had this:

projects_recycler_view.apply {
            this.layoutManager = linearLayoutManager
            this.adapter = adapter
        }

When I should have had this:

projects_recycler_view.apply {
            this.layoutManager = linearLayoutManager
            this.adapter = projectAdapter
        }

Because I foolishly called my adapter adapter, it was being shadowed by the recycler view's adapter in the apply block! I renamed the adapter to projectAdapter to differentiate it and problem solved!

Answer 3

Setting the height of the TextView in the custom.xml or RecyclerView. If height is wrap-content, the RecyclerView will not be visible.

Answer 4

This happened when my RecyclerView was inside a ScrollView and I was using Android Support Library 23.0. To fix, I updated to Android Support Library 23.2:

In build.gradle:

dependencies {
    ...
    compile 'com.android.support:appcompat-v7:23.2.+'
    compile 'com.android.support:cardview-v7:23.2.+'
}

Answer 5

I struggled with this issue for many hours. I was using a fragment. And the issue was not returning the view. Below is my code:

ProductGridBinding binding = DataBindingUtil.inflate( inflater, R.layout.product_grid, container, false);



    mLinearLayoutManager = new LinearLayoutManager(getActivity());
    mLinearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);

    binding.rvNumbers.setHasFixedSize(true);
    binding.rvNumbers.setLayoutManager(mLinearLayoutManager);
    binding.rvNumbers.setAdapter(adapter);


    View view = binding.getRoot();


    return view;

Answer 6

In my case , I was missing calling notifyDataSetChanged() after setting list in adapter.

public void setUserList(List<UserList> userList) {
      this.userList = userList;
        notifyDataSetChanged();
}