这个问题是因为RecyclerView在没有设置Adapter的情况下启动了layoutManager,从而导致了该警告。要解决这个问题,请确保在RecyclerView调用setLayoutManager()之前设置了适配器(即RecyclerView.setAdapter(adapter))。以下是示例代码:
//创建RecyclerView
RecyclerView recyclerView = findViewById(R.id.recycler_view);
recyclerView.setHasFixedSize(true);
//创建适配器并绑定到RecyclerView
MyAdapter myAdapter = new MyAdapter();
recyclerView.setAdapter(myAdapter);
//创建布局管理器并绑定到RecyclerView
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);