检测 RecyclerView 滚动时何时到达最底部位置

Question

我有这个 RecyclerView 的代码。

     recyclerView = (RecyclerView)rootview.findViewById(R.id.fabric_recyclerView);
    recyclerView.setLayoutManager(layoutManager);
    recyclerView.addItemDecoration(new RV_Item_Spacing(5));
    FabricAdapter fabricAdapter=new FabricAdapter(ViewAdsCollection.getFabricAdsDetailsAsArray());
    recyclerView.setAdapter(fabricAdapter);

我需要知道 RecyclerView 在滚动时何时到达最底部位置。可能吗 ？如果是，如何？

原文由 Adrian 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

在使用适配器声明和初始化您的 recyclerView 后使用此方法

recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {

            @Override
            public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
                super.onScrollStateChanged(recyclerView, newState);

            }

            @Override
            public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);

                if(dy > 0){ // Scrolling Down


//**Look at the condition inside if, this is how you can check, either you //have scrolled till last element of your recyclerView or not.**

//------------------------------------------------------------------------------

            LinearLayoutManager linearLayoutManager = (LinearLayoutManager) recyclerView.getLayoutManager();

                        if (linearLayoutManager != null && linearLayoutManager.findLastCompletelyVisibleItemPosition() == recyclerViewList.size() - 1) {
                            //bottom of list!
                        }
//------------------------------------------------------------------------------

                }else if(dy < 0){
                    // Scrolling Up

                }

            }
        });

原文由 nikb727 发布，翻译遵循 CC BY-SA 4.0 许可协议