How to find percentage of each visible item in recycleview

Question

int findFirstVisibleItemPosition();
int findFirstCompletelyVisibleItemPosition();
int findLastVisibleItemPosition();
int findLastCompletelyVisibleItemPosition();
         


        

Answer 1

You need to write addOnScrollListener() for recyclerview and inside that write following code where you will get position of firstVisibleItem and then you can get dimension of that item on each scroll. Just save previous dimension in global variable and compare it with the current dimension and calculate percentage on every scroll change. When you get your desired percentage then perform your operations.

int position = linearLayoutManager.findFirstVisibleItemPosition();
Rect rect = new Rect();
linearLayoutManager.findViewByPosition(position).getGlobalVisibleRect(rect);