Create an abstract class and extends RecyclerView.OnScrollListener public abstract class EndlessRecyclerOnScrollListener extends RecyclerView.OnScrollListener { private int previousTotal = 0; private boolean loading = true; private int visibleThreshold; private int firstVisibleItem, visibleItemCount, totalItemCount; private RecyclerView.LayoutManager layoutManager; public EndlessRecyclerOnScrollListener(RecyclerView.LayoutManager layoutManager, int visibleThreshold) { this.layoutManager = layoutManager; this.visibleThreshold = visibleThreshold; } @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { super.onScrolled(recyclerView, dx, dy); visibleItemCount = recyclerView.getChildCount(); totalItemCount = layoutManager.getItemCount(); firstVisibleItem = ((LinearLayoutManager)layoutManager).findFirstVisibleItemPosition(); if (loading) { if (totalItemCount > previousTotal) { loading = false; previousTotal = totalItemCount; } } if (!loading && (totalItemCount - visibleItemCount) <= (firstVisibleItem + visibleThreshold)) { onLoadMore(); loading = true; } } public abstract void onLoadMore();} in activity (or fragment) add addOnScrollListener to recyclerView LinearLayoutManager mLayoutManager = new LinearLayoutManager(this); recyclerView.setLayoutManager(mLayoutManager); recyclerView.addOnScrollListener(new EndlessRecyclerOnScrollListener(mLayoutManager, 3) { @Override public void onLoadMore() { //TODO ... } });

我使用了recyclerview。adapter的onBindViewHolder方法。

适配器:

public interface OnViewHolderListener {
    void onRequestedLastItem();
}

@Override
public void onBindViewHolder(ViewHolder holder, int position) {

    ...

    if (position == getItemCount() - 1) onViewHolderListener.onRequestedLastItem();
}

片段(或活动):

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    contentView = inflater.inflate(R.layout.comments_list, container, false);
    recyclerView = (RecyclerView) mContentView.findViewById(R.id.my_recycler_view);
    adapter = new Adapter();
    recyclerView.setAdapter(adapter);

    ...

    adapter.setOnViewHolderListener(new Adapter.OnViewHolderListener() {
        @Override
        public void onRequestedLastItem() {
            //TODO fetch new data from webservice
        }
    });
    return contentView;
}

借助Kotlin扩展函数的强大功能，代码可以看起来更加优雅。把它放在你想要的任何地方(我把它放在一个ExtensionFunctions中。kt文件):

/**
 * WARNING: This assumes the layout manager is a LinearLayoutManager
 */
fun RecyclerView.addOnScrolledToEnd(onScrolledToEnd: () -> Unit){

    this.addOnScrollListener(object: RecyclerView.OnScrollListener(){

        private val VISIBLE_THRESHOLD = 5

        private var loading = true
        private var previousTotal = 0

        override fun onScrollStateChanged(recyclerView: RecyclerView,
                                          newState: Int) {

            with(layoutManager as LinearLayoutManager){

                val visibleItemCount = childCount
                val totalItemCount = itemCount
                val firstVisibleItem = findFirstVisibleItemPosition()

                if (loading && totalItemCount > previousTotal){

                    loading = false
                    previousTotal = totalItemCount
                }

                if(!loading && (totalItemCount - visibleItemCount) <= (firstVisibleItem + visibleThreshold)){

                    onScrolledToEnd()
                    loading = true
                }
            }
        }
    })
}

然后像这样使用它:

youRecyclerView.addOnScrolledToEnd {
    //What you want to do once the end is reached
}

这个解决方案基于Kushal Sharma的回答。然而，这是一个更好的，因为:

它使用onScrollStateChanged而不是onScroll。这样做比较好，因为每当RecyclerView中有任何类型的移动时，onScroll都会被调用，而onScrollStateChanged只在RecyclerView的状态改变时被调用。使用onScrollStateChanged将节省CPU时间，从而节省电池。 因为它使用扩展函数，所以可以在任何RecyclerView中使用。客户端代码只有一行。

对于使用StaggeredGridLayoutManager的人，这是我的实现，它适用于我。

 private class ScrollListener extends RecyclerView.OnScrollListener {
    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {

        firstVivisibleItems = mLayoutManager.findFirstVisibleItemPositions(firstVivisibleItems);

        if(!recyclerView.canScrollVertically(1) && firstVivisibleItems[0]!=0) {
            loadMoreImages();
        }

    }

    private boolean loadMoreImages(){
        Log.d("myTag", "LAST-------HERE------");
        return true;
    }
}

我检测加载事件的方法不是检测滚动，而是监听最后一个视图是否附加。如果附加了最后一个视图，我认为这是加载更多内容的时机。

class MyListener implements RecyclerView.OnChildAttachStateChangeListener {
    RecyclerView mRecyclerView;

    MyListener(RecyclerView view) {
        mRecyclerView = view;
    }

    @Override
    public void onChildViewAttachedToWindow(View view) {

    RecyclerView.Adapter adapter = mRecyclerView.getAdapter();
    RecyclerView.LayoutManager mgr = mRecyclerView.getLayoutManager();
    int adapterPosition = mgr.getPosition(view);

    if (adapterPosition == adapter.getItemCount() - 1) {
        // last view was attached
        loadMoreContent();
    }

    @Override
    public void onChildViewDetachedFromWindow(View view) {}
}

我让你接近我。对我来说没问题。

我希望这对你有所帮助。

/**
 * Created by Daniel Pardo Ligorred on 03/03/2016.
 */
public abstract class BaseScrollListener extends RecyclerView.OnScrollListener {

    protected RecyclerView.LayoutManager layoutManager;

    public BaseScrollListener(RecyclerView.LayoutManager layoutManager) {

        this.layoutManager = layoutManager;

        this.init();
    }

    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {

        super.onScrolled(recyclerView, dx, dy);

        this.onScroll(recyclerView, this.getFirstVisibleItem(), this.layoutManager.getChildCount(), this.layoutManager.getItemCount(), dx, dy);
    }

    private int getFirstVisibleItem(){

        if(this.layoutManager instanceof LinearLayoutManager){

            return ((LinearLayoutManager) this.layoutManager).findFirstVisibleItemPosition();
        } else if (this.layoutManager instanceof StaggeredGridLayoutManager){

            int[] spanPositions = null; //Should be null -> StaggeredGridLayoutManager.findFirstVisibleItemPositions makes the work.

            try{

                return ((StaggeredGridLayoutManager) this.layoutManager).findFirstVisibleItemPositions(spanPositions)[0];
            }catch (Exception ex){

                // Do stuff...
            }
        }

        return 0;
    }

    public abstract void init();

    protected abstract void onScroll(RecyclerView recyclerView, int firstVisibleItem, int visibleItemCount, int totalItemCount, int dx, int dy);

}