加载Android时停止recyclelerview滚动

Question

当RecyclerView达到结束时，它将加载另一对数据

但在加载RecyclerView时，RecyclerView的空视图是可见的，如果单击空视图，它会给我 ArrayBoundaryExeption

所以我需要在isLoading

时停止滚动

       mRecyclerView = (RecyclerView) findViewById(R.id.recycleView);     
       mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
       mUserAdapter = new UserAdapter();
       mRecyclerView.setAdapter(mUserAdapter);


     mUserAdapter.setOnLoadMoreListener(new OnLoadMoreListener() {
        @Override
        public void onLoadMore() {

        /*    mRecyclerView.stopNestedScroll();
            mRecyclerView.stopScroll();
            CustomGridLayoutManager ss= new CustomGridLayoutManager(WorkNow.this);
            ss.setScrollEnabled(false);
            mRecyclerView.setNestedScrollingEnabled(false);
            linearLayoutManager.canScrollVertically();  */

            //   if (Choose.equals("Local")) {
            Log.e("haint", "Load More");
            mUsers.add(null);
            mUserAdapter.notifyItemInserted(mUsers.size() - 1);
            dataLoadMore();
            //mRecyclerView.setNestedScrollingEnabled(false);
          //  mRecyclerView.stopScroll();

            //Load more data for reyclerview
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {

                  /*  mRecyclerView.stopNestedScroll();
                    mRecyclerView.stopScroll();
                    CustomGridLayoutManager ss= new CustomGridLayoutManager(WorkNow.this);
                    ss.setScrollEnabled(false);
                    mRecyclerView.setNestedScrollingEnabled(false);
                    linearLayoutManager.canScrollVertically();  */

                    Log.e("haint", "Load More 2");
                   // mRecyclerView.setNestedScrollingEnabled(false);
                 //   mRecyclerView.stopScroll();

                    //Remove loading item
                    if (!mUsers.isEmpty()) {
                        mUsers.remove(mUsers.size() - 1);
                        mUserAdapter.notifyItemRemoved(mUsers.size());
                    }


                        for (int i = 0; i < lenMore; i++) {
                            LocalListView localListView = new LocalListView();


                            localListView.setJob_local_id(job_local_idM[i]);
                            localListView.setJob_typess(job_typessM[i]);

                            mUsers.add(localListView);
                        }
                    mUserAdapter.notifyDataSetChanged();
                    mUserAdapter.setLoaded();
                }
            }, 5000);
        }

    });


     RecycleClick.addTo(mRecyclerView).setOnItemClickListener(new RecycleClick.OnItemClickListener() {
        @Override
        public void onItemClicked(RecyclerView recyclerView, int position, View v) {
            // YOUR CODE

            if(mUserAdapter.isLoading){
                    //
             /*     mRecyclerView.stopNestedScroll();
                   mRecyclerView.stopScroll();
                  CustomGridLayoutManager ss= new 
                 CustomGridLayoutManager(WorkNow.this);
                  ss.setScrollEnabled(false);
                 mRecyclerView.setNestedScrollingEnabled(false);
                 linearLayoutManager.canScrollVertically();  */
                Toast.makeText(getApplicationContext(),"Loading please 
                 wait...",Toast.LENGTH_LONG).show();
                 }else if(position!=-1){

                    Intent is = new Intent(getApplicationContext(), WorkProfileLocal.class);
                    is.putExtra("job_local_idG", mUsers.get(position).getJob_local_id());
                    is.putExtra("user_idsG", mUsers.get(position).getUser_ids());

                    startActivity(is);

            }
        }
    });



    static class UserViewHolder extends RecyclerView.ViewHolder {


    public TextView tvJobTitle;
    public TextView tvJobWork;

       public UserViewHolder(View itemView) {
        super(itemView);

        tvHirerName = (TextView) itemView.findViewById(R.id.tvWhatWork);
        tvJobTitle = (TextView) itemView.findViewById(R.id.tvJobTitle);

    }
}

static class LoadingViewHolder extends RecyclerView.ViewHolder {
    public ProgressBar progressBar;


    public LoadingViewHolder(View itemView) {
        super(itemView);
        progressBar = (ProgressBar) itemView.findViewById(R.id.progressBar1);


    }
}

class UserAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

    private final int VIEW_TYPE_ITEM = 0;
    private final int VIEW_TYPE_LOADING = 1;

    private OnLoadMoreListener mOnLoadMoreListener;

    private boolean isLoading;
    private int visibleThreshold = 5;
    private int lastVisibleItem, totalItemCount;

    public UserAdapter() {
        final LinearLayoutManager linearLayoutManager = (LinearLayoutManager) mRecyclerView.getLayoutManager();
        mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);

                totalItemCount = linearLayoutManager.getItemCount();
                lastVisibleItem = linearLayoutManager.findLastVisibleItemPosition();

                if (!isLoading && totalItemCount <= (lastVisibleItem + visibleThreshold)) {
                    if (mOnLoadMoreListener != null) {
                        mOnLoadMoreListener.onLoadMore();

                      /*  mRecyclerView.stopNestedScroll();
                        mRecyclerView.stopScroll();
                        CustomGridLayoutManager ss= new CustomGridLayoutManager(WorkNow.this);
                        ss.setScrollEnabled(false);
                        mRecyclerView.setNestedScrollingEnabled(false);
                        linearLayoutManager.canScrollVertically();*/
                    }
                    isLoading = true;
                  /*  mRecyclerView.stopNestedScroll();
                    mRecyclerView.stopScroll();
                    CustomGridLayoutManager ss= new CustomGridLayoutManager(WorkNow.this);
                    ss.setScrollEnabled(false);
                    mRecyclerView.setNestedScrollingEnabled(false);
                    linearLayoutManager.canScrollVertically(); */

                }
            }
        });
    }

    public void setOnLoadMoreListener(OnLoadMoreListener mOnLoadMoreListener) {
        this.mOnLoadMoreListener = mOnLoadMoreListener;
    }

    @Override
    public int getItemViewType(int position) {
        return mUsers.get(position) == null ? VIEW_TYPE_LOADING : VIEW_TYPE_ITEM;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (viewType == VIEW_TYPE_ITEM) {
            View view = LayoutInflater.from(WorkNow.this).inflate(R.layout.list_view_local_jobs, parent, false);
            return new UserViewHolder(view);
        } else if (viewType == VIEW_TYPE_LOADING) {
            View view = LayoutInflater.from(WorkNow.this).inflate(R.layout.layout_loading_item, parent, false);
           /* mRecyclerView.stopNestedScroll();
            mRecyclerView.stopScroll();
            CustomGridLayoutManager ss= new CustomGridLayoutManager(WorkNow.this);
            ss.setScrollEnabled(false);
            mRecyclerView.setNestedScrollingEnabled(false);
            linearLayoutManager.canScrollVertically(); */
            return new LoadingViewHolder(view);
        }
        return null;
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        if (holder instanceof UserViewHolder) {
            LocalListView localListView = mUsers.get(position);
            UserViewHolder userViewHolder = (UserViewHolder) holder;
            userViewHolder.tvHirerName.setText(localListView.getUser_names());
            userViewHolder.tvJobTitle.setText(localListView.getJob_titles().replaceAll("_", " "));


            if (localListView.getImage().isEmpty()) {
                userViewHolder.hirerPicLocal.setImageResource(R.drawable.blank_low);
            } else{
                Picasso.with(getApplicationContext())
                        .load(localListView.getImage())
                        .into(userViewHolder.hirerPicLocal);
            }



        } else if (holder instanceof LoadingViewHolder) {
            LoadingViewHolder loadingViewHolder = (LoadingViewHolder) holder;
            loadingViewHolder.progressBar.setIndeterminate(true);

         /*   mRecyclerView.stopNestedScroll();
            mRecyclerView.stopScroll();
            CustomGridLayoutManager ss= new CustomGridLayoutManager(WorkNow.this);
            ss.setScrollEnabled(false);
            mRecyclerView.setNestedScrollingEnabled(false);
            linearLayoutManager.canScrollVertically(); */

        }
    }

    @Override
    public int getItemCount() {
        return mUsers == null ? 0 : mUsers.size();
    }

    public void setLoaded() {
        isLoading = false;
    }
}

这个Class我从StackOverFlow到StopScroll但它没有工作。

public class CustomGridLayoutManager extends LinearLayoutManager {
    private boolean isScrollEnabled = true;


    public CustomGridLayoutManager(Context context) {
        super(context);
    }

    public void setScrollEnabled(boolean flag) {
        this.isScrollEnabled = flag;
    }

    @Override
    public boolean canScrollVertically() {
        //Similarly you can customize "canScrollHorizontally()" for managing horizontal scroll
        return isScrollEnabled && super.canScrollVertically();
    }
}
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(WorkNow.this) {
    @Override
    public boolean canScrollVertically() {
        return false;
    }
};