＆QUOT; RecyclerView：无适配器连接;跳绳布局＆QUOT;在片段recyclerview [英] "RecyclerView: No Adapter attached; skipping layout" for recyclerview in fragment

问题描述

我得到这个错误，但我不知道是什么原因造成它......也许是与事实，这是在一个片段被初始化而不是活动本身。编辑：包括StatsAdapter code

 公共类StatsFragment扩展片段{    私人RecyclerView mRecyclerView;
    私人LinearLayoutManager mLinearLayoutManager;
    私人RecyclerView.Adapter mAdapter;
    私有String [] = myDataset新的String [] {你好，世界，YOLO};    @覆盖
    公共无效的onCreate（捆绑savedInstanceState）{
        super.onCreate（savedInstanceState）;
    }    @覆盖
    公共查看onCreateView（LayoutInflater吹气，ViewGroup中父母，捆绑savedInstanceState）{
        视图V = inflater.inflate（R.layout.fragment_stats，父母，假）;
        mRecyclerView =（RecyclerView）v.findViewById（R.id.cardList）;
        mRecyclerView.setHasFixedSize（真）;
        mAdapter =新StatsAdapter（myDataset）;
        mRecyclerView.setAdapter（mAdapter）;
        mLinearLayoutManager =新LinearLayoutManager（getActivity（））;
        mLinearLayoutManager.setOrientation（LinearLayoutManager.VERTICAL）;
        mRecyclerView.setLayoutManager（mLinearLayoutManager）;
        返回伏;
    }
}公共类StatsAdapter扩展RecyclerView.Adapter＆LT; StatsAdapter.ViewHolder＆GT; {
    私有String [] mDataset;    公共静态类ViewHolder扩展RecyclerView.ViewHolder {
        公众的TextView mTextView;
        公共ViewHolder（视图v）{
            超级（五）;
            mTextView =（TextView中）v.findViewById（R.id.title）;
        }
    }    公共StatsAdapter（字符串[] myDataset）{
        mDataset = myDataset;
    }    @覆盖
    公共StatsAdapter.ViewHolder onCreateViewHolder（ViewGroup中的父母，INT viewType）{
        视图V = LayoutInflater.from（parent.getContext（））膨胀（R.layout.fragment_stats，父母，假的）。
        ViewHolder VH =新ViewHolder（ⅴ）;
        返回VH;
    }    @覆盖
    公共无效onBindViewHolder（ViewHolder持有人，INT位置）{
        holder.mTextView.setText（mDataset [位置]）;
    }    @覆盖
    公众诠释getItemCount（）{
        返回mDataset.length;
    }
}
 

解决方案

在 setAdapter <移动你的 setLayoutManager 行/ p>

I'm getting this error but I don't know what is causing it...perhaps something to do with the fact that this is being initialized in a fragment and not in the activity itself. Edit: included StatsAdapter code

public class StatsFragment extends Fragment {

    private RecyclerView mRecyclerView;
    private LinearLayoutManager mLinearLayoutManager;
    private RecyclerView.Adapter mAdapter;
    private String[] myDataset = new String[]{"hello", "world", "yolo"};

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_stats, parent, false);
        mRecyclerView = (RecyclerView) v.findViewById(R.id.cardList);
        mRecyclerView.setHasFixedSize(true);
        mAdapter = new StatsAdapter(myDataset);
        mRecyclerView.setAdapter(mAdapter);
        mLinearLayoutManager = new LinearLayoutManager(getActivity());
        mLinearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        mRecyclerView.setLayoutManager(mLinearLayoutManager);
        return v;
    }
}



public class StatsAdapter extends RecyclerView.Adapter<StatsAdapter.ViewHolder> {
    private String[] mDataset;

    public static class ViewHolder extends RecyclerView.ViewHolder {
        public TextView mTextView;
        public ViewHolder(View v) {
            super(v);
            mTextView = (TextView) v.findViewById(R.id.title);
        }
    }

    public StatsAdapter(String[] myDataset) {
        mDataset = myDataset;
    }

    @Override
    public StatsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_stats, parent, false);
        ViewHolder vh = new ViewHolder(v);
        return vh;
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        holder.mTextView.setText(mDataset[position]);
    }

    @Override
    public int getItemCount() {
        return mDataset.length;
    }
}

解决方案

Move your setLayoutManager line before setAdapter

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