Pagination not work for the RecyclerView within NestedScrollView

Question

How to implement pagination of recyclerview that is within NestedScrollView?

Answer 1

Follow this steps :

1. Set nested scrolling enabled false of recycler view.

recyclerView.setNestedScrollingEnabled(false); 

2. Add scroll listner to nested scrollview.

 mScrollView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {            @Override            public void onScrollChanged()            {                     View view = (View)mScrollView.getChildAt(mScrollView.getChildCount() - 1);                      int diff = (view.getBottom() - (mScrollView.getHeight() + mScrollView                                     .getScrollY()));                      if (diff == 0) {                        // your pagination code                     }            }   }); 

Answer 2

if you are using Kotlin your code will be looks like

 scroll?.viewTreeObserver?.addOnScrollChangedListener {         val view = scroll.getChildAt(scroll.childCount - 1)         Timber.d("Count==============${scroll.childCount}")          val diff = view.bottom - (scroll.height + scroll.scrollY)         Timber.d("diff==============$diff")          if (diff == 0) {             //your api call to fetch data         }     } 

and last but the not the least set RecyclerView scrolling false

 ViewCompat.setNestedScrollingEnabled(recyclerView, false)