这可能是由于RecyclerView没有及时更新数据导致的。您可以在请求完成后手动调用RecyclerView的notifyDataSetChanged()方法来刷新数据。 下面是一个示例代码：

public class MainActivity extends AppCompatActivity { private RecyclerView mRecyclerView; private MyAdapter mAdapter; private List mDataList;

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

    mRecyclerView = findViewById(R.id.recycler_view);
    mDataList = new ArrayList<>();
    mAdapter = new MyAdapter(mDataList);
    LinearLayoutManager layoutManager = new LinearLayoutManager(this);
    mRecyclerView.setLayoutManager(layoutManager);
    mRecyclerView.setAdapter(mAdapter);

    // 发起API请求
    requestData();
}

private void requestData() {
    // 发起请求
    ...
    // 请求完成后更新数据
    mDataList.clear();
    mDataList.addAll(newDataList);
    mAdapter.notifyDataSetChanged();
}

}