小编Sau*_*abh的帖子

我正在尝试使用片段中的分页来制作无休止的回收器视图。
但面临的问题如下。

1. findLastCompletlyVisibleItemPosition() 或 findFirstCompletelyVisibleItemPosition() 仅返回 -1。
2. 如果 setNestedScrollingEnabled(false)，则 onScrollStateChanged 不起作用

下面是我的代码示例。`

        recyclerView = (RecyclerView) view.findViewById(R.id.recycler1);

        //recyclerView.setNestedScrollingEnabled(false);                                              // Smooth Scrolling
         mLayoutManager = new LinearLayoutManager(getActivity());

        lastVisiblePosition = mLayoutManager.findLastVisibleItemPosition();
        firstVisibleItemPosition = mLayoutManager.findFirstCompletelyVisibleItemPosition();
        Log.i("sandi", String.valueOf(firstVisibleItemPosition));
        load = new LoadAdapter(getActivity(), grid_list);
        recyclerView.setLayoutManager(mLayoutManager);
        recyclerView.setItemAnimator(new DefaultItemAnimator());
        recyclerView.setAdapter(load);
        mProgressDialog.dismiss();

        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                int threshold =1;
                int count = recyclerView.getChildCount();



                Log.i("sand", String.valueOf(count));

                if (newState == SCROLL_STATE_IDLE ) {
                    if (lastVisiblePosition >= count
                            - threshold) {
                        // Execute LoadMoreDataTask AsyncTask

                        Log.i("sand","stopped"); …