RecyclerView列表項(xiàng)實(shí)現(xiàn)無限滾動(dòng)加載

要實(shí)現(xiàn)RecyclerView列表項(xiàng)的無限滾動(dòng)加載，可以使用EndlessRecyclerViewScrollListener類來監(jiān)聽滾動(dòng)事件，并在滾動(dòng)到列表底部時(shí)加載更多數(shù)據(jù)。以下是一個(gè)示例代碼實(shí)現(xiàn)：

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    private List<String> dataList;
    private CustomAdapter adapter;
    private int page = 1;
    private boolean isLoading = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        recyclerView = findViewById(R.id.recyclerView);
        dataList = new ArrayList<>();
        adapter = new CustomAdapter(dataList);
        LinearLayoutManager layoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(layoutManager);
        recyclerView.setAdapter(adapter);

        EndlessRecyclerViewScrollListener scrollListener = new EndlessRecyclerViewScrollListener(layoutManager) {
            @Override
            public void onLoadMore(int page, int totalItemsCount, RecyclerView view) {
                if (!isLoading) {
                    loadMoreData();
                }
            }
        };
        recyclerView.addOnScrollListener(scrollListener);

        loadData();
    }

    private void loadData() {
        // 模擬加載數(shù)據(jù)
        for (int i = 0; i < 20; i++) {
            dataList.add("Item " + (i + 1));
        }
        adapter.notifyDataSetChanged();
    }

    private void loadMoreData() {
        isLoading = true;
        // 模擬加載更多數(shù)據(jù)
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                for (int i = 0; i < 20; i++) {
                    dataList.add("Item " + (dataList.size() + 1));
                }
                adapter.notifyDataSetChanged();
                isLoading = false;
            }
        }, 2000);
    }
}

在上面的代碼中，我們首先設(shè)置RecyclerView的布局管理器和適配器，并創(chuàng)建一個(gè)EndlessRecyclerViewScrollListener來監(jiān)聽滾動(dòng)事件。在onLoadMore方法中，我們調(diào)用loadMoreData方法來加載更多數(shù)據(jù)。在loadData方法中加載初始數(shù)據(jù)，并在loadMoreData方法中模擬加載更多數(shù)據(jù)。isLoading變量用來判斷是否正在加載數(shù)據(jù)，避免重復(fù)加載。

通過這種方式，當(dāng)用戶滾動(dòng)到列表底部時(shí)，會(huì)自動(dòng)觸發(fā)加載更多數(shù)據(jù)的操作，實(shí)現(xiàn)RecyclerView列表項(xiàng)的無限滾動(dòng)加載效果。