Update Position Of Recyclerview When Scrolling (android)

How can i update position on scroll. right now the position gets updated every time i click on item. i want to update the position every time i scroll. What i wanna do is have a te

Solution 1:

Hi you can use below code,

 mRecyclerView.addOnScrollListener(newRecyclerView.OnScrollListener()
    {
        @OverridepublicvoidonScrolled(RecyclerView recyclerView, int dx, int dy)
        {
            GridLayoutManagerlayoutManager= ((GridLayoutManager)mRecyclerView.getLayoutManager());
            intfirstVisiblePosition= layoutManager.findFirstVisibleItemPosition();
            intfindFirstCompletelyVisibleItemPosition= layoutManager.findFirstCompletelyVisibleItemPosition();
            intfindLastVisibleItemPosition= layoutManager.findLastVisibleItemPosition();
            intfindLastCompletelyVisibleItemPosition= layoutManager.findLastCompletelyVisibleItemPosition();
        }
    });

Solution 2:

use this, you will have to maintain a previousPosition in your activity and in your adapter class a selectedItem as int intialize previousPoistion=-1; and selectedPosition=1;

@OverridepublicvoidonScrollStateChanged(RecyclerView recyclerView, int newState) {
            super.onScrollStateChanged(recyclerView, newState);
            switch (newState) {
                case0:
                    intpos= linearLayoutManager1.findLastVisibleItemPosition();
                    yourAdapter.selectedPosition = pos - 1;
                    previousPosition = pos - 1;
                    yourTextView.setText(yourLIst.get(pos-1));
                    break;
            }
        }
    });

and in your onBindView Holder of adapter

@OverridepublicvoidonBindViewHolder(final RecyclerView.ViewHolder holder, finalint position) {
if (position == selectedPosition) {
             //do what you want when selected
            } 
}