小编cet*_*sar的帖子

我试图显示嵌套的recyclerview但不显示子项.我想在所有子视图中显示不同的项目.我没有收到错误,但视图没有刷新.

这是我的代码可以任何一个帮助.

谢谢

    public class MainActivity extends ActionBarActivity {

    RecyclerView recyclerView;
    RootAdapter adapter;

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

        adapter = new RootAdapter(this);
        recyclerView = (RecyclerView) findViewById(R.id.recyclerRoot);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        recyclerView.setAdapter(adapter);

    }

private class RootAdapter extends RecyclerView.Adapter<RootAdapter.RootViewHolder> {

        private final LayoutInflater inflater;
        String[] _items = new String[]{"ITEM 1", "ITEM 2", "ITEM 3", "ITEM 4"};
        public RootAdapter(Context context)
        {
            inflater = LayoutInflater.from(context);
        }

        @Override
        public RootViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
            View view = inflater.inflate(R.layout.root_row, viewGroup, false);
            RootViewHolder rvi = …