Nested Recyclerview Issues

I have a fragment with parent RecyclerView and his child (the child is inner recyclerview). When I scroll to bottom (last data), and scroll it again to top, I found the problem. On

Solution 1:

When you scroll to bottom and again to top. the OnBindViewHolder method recall, so the inner Recyclerview will set adapter another time.

It's better to use NestedScrollView as a parent of fragment instead of RecyclerView

you may face a problem that the recyclerview slow when scroll. use this code to solve it and enhance the performance.

 recycleview.setNestedScrollingEnabled(false);
 ViewCompat.setNestedScrollingEnabled(recycleview, false);
 recycleview.setHasFixedSize(true);
 recycleview.setItemViewCacheSize(20);
 recycleview.setDrawingCacheEnabled(true);
 recycleview.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);

Now, you should use the code in the method OnBindViewHolder inside the onCreateView in your fragment to set the adapter for the inner recyclerView

tell me if you have any problem