Auto Pagination - Gridview or Listview

Auto Pagination Load more items when reach bottom Gridview or Listview

Codes

Recycler to GRID
//The following code will allow Recycler view to arrange items in Gridview manner

recyclerview1.setLayoutManager(new GridLayoutManager(this, 3));

Bottom Reach Listener
//The following code is used to Trigger any event when the Recycler view Reach Bottom

recyclerview1.addOnScrollListener(new RecyclerView.OnScrollListener() {
    @Override
	public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
        super.onScrolled(recyclerView, dx, dy);
                if (! recyclerView.canScrollVertically(1))
                {
// add load more Operation here
                }
            }
});
        

Firebase Query Listening

Following code to get Items from Firebase with LIMIT

query = dplay.limitToLast((int)limit).orderByChild(key);
query.addValueEventListener(valueEventListener1);

dplay = Database component name
key = The key need to order by

Asd continue 2

}
com.google.firebase.database.Query query;

ASD 3

Download Code from Google Drive

Download this Code from link bellow

Due to some glitch in our blog copy pasting this code will give error when yo copy from here.

So download it from URL Bellow then copy it
https://drive.google.com/file/d/1C4-sgqTbglx7pq-CDpW7NKhKhbcTzQJk/view?usp=drivesdk

str = String variable listmap = Listmap variable

ASD 4

As if any error happens the following part will execute

} catch (Exception e) { showMessage(e.toString()); } }

@Override public void onCancelled(DatabaseError databaseError) { } }; {