This is how I am setting up recyclerview.
mRecyclerViewRides = (RecyclerView) findViewById(R.id.recyclerViewRides);
// use this setting to improve performance if you know that changes
// in content do not change the layout size of the RecyclerView
mRecyclerViewRides.setHasFixedSize(true);
// use a linear layout manager
mLinearLayoutManager = new LinearLayoutManager(getApplicationContext());
mRecyclerViewRides.setLayoutManager(mLinearLayoutManager);
mRideListAdapter = new FindRideListAdapter(getApplicationContext(), mRecyclerViewRides, mRideDetailArrayList, mImageOptions, mImageLoader, this);
mRecyclerViewRides.setAdapter(mRideListAdapter);
mRecyclerViewRides.addOnScrollListener(new EndlessRecyclerOnScrollListener(mLinearLayoutManager) {
@Override
public void onLoadMore(int current_page) {
Log.e(TAG,"Scroll Count ==> "+(++mIntScrollCount));
if(!flagFirstLoad) {
mOffset = mOffset + mLimit;
getRideList(mOffset, mLimit);
}
}
});
This is the code for endless recycler view scroll listner.
public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener {
public static String TAG = EndlessRecyclerOnScrollListener.class.getSimpleName();
private int previousTotal = 0; // The total number of items in the dataset after the last load
private boolean loading = true; // True if we are still waiting for the last set of data to load.
private int visibleThreshold = 1; // The minimum amount of items to have below your current scroll position before loading more.
int firstVisibleItem, visibleItemCount, totalItemCount;
private int current_page = 1;
private LinearLayoutManager mLinearLayoutManager;
public EndlessRecyclerOnScrollListener(LinearLayoutManager linearLayoutManager) {
this.mLinearLayoutManager = linearLayoutManager;
}
/**
* function to reset values of the properties of this class to initial
*/
public void resetValues(){
previousTotal = 0;
loading = true;
visibleThreshold = 1;
firstVisibleItem = 0;
visibleItemCount = 0;
totalItemCount = 0;
}
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
visibleItemCount = recyclerView.getChildCount();
totalItemCount = mLinearLayoutManager.getItemCount();
firstVisibleItem = mLinearLayoutManager.findFirstVisibleItemPosition();
if (loading) {
if (totalItemCount > previousTotal) {
loading = false;
previousTotal = totalItemCount;
}
}
if (!loading && (totalItemCount - visibleItemCount)
<= (firstVisibleItem + visibleThreshold)) {
// End has been reached
// Do something
current_page++;
onLoadMore(current_page);
loading = true;
}
}
public abstract void onLoadMore(int current_page);}
So now whenever i scroll to bottom of the list onLoadMore() gets called twice and even intialy when i call getRideList() for the first time onScroll is getting invoked. I don't understand why?
