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Code Issues Projects Releases Packages Wiki Activity Actions

First experiment with on-scrolling pagination on track list by genre

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antonio 2023-03-19 18:23:52 +01:00
parent b345695fa2
commit 35bc02e6d9
4 changed files with 83 additions and 16 deletions
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36
app/src/main/java/com/cappielloantonio/play/helper/recyclerview/PaginationScrollListener.java Normal file
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package com.cappielloantonio.play.helper.recyclerview;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
public abstract class PaginationScrollListener extends RecyclerView.OnScrollListener {
private static final String TAG = "PaginationScrollListener";
private LinearLayoutManager layoutManager;
protected PaginationScrollListener(LinearLayoutManager layoutManager) {
this.layoutManager = layoutManager;
}
@Override
public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
int visibleItemCount = layoutManager.getChildCount();
int totalItemCount = layoutManager.getItemCount();
int firstVisibleItemPosition = layoutManager.findFirstVisibleItemPosition();
if (!isLoading()) {
if (firstVisibleItemPosition >= 0 && (visibleItemCount + firstVisibleItemPosition) >= totalItemCount) {
loadMoreItems();
}
}
}
protected abstract void loadMoreItems();
public abstract boolean isLoading();
}