未连接适配器；跳过布局回收站视图 [英] No adapter attached; skipping layout recyclerview

问题描述

图像未显示.在一个SO的例子中说要检查适配器中的计数，但是我认为它是正确的. 我在logcat中收到此错误

the images are not displaying. in a SO example said to check the count in the adapter, but i think its correct. I am getting this error in the logcat

No adapter attached; skipping layout recyclerview

这是代码mainactivity

this is the code mainactivity

RecyclerOkHttpHandler handler = new RecyclerOkHttpHandler( this, new RecyclerOkHttpHandler.MyInterface() {
        @Override
        public void myMethod(ArrayList result) {
            mAdapter = new MyAdapter(result,Search.this);
            mAdapter.notifyDataSetChanged();
            mRecyclerView.setAdapter(mAdapter);

这是我的适配器

public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private ArrayList<Listitem> mDataset;
    Context mContext;
    public class ImageViewHolder extends RecyclerView.ViewHolder {
        //ImageView mImage;
        public TextView txtHeader;
        public TextView txtFooter;
        public ImageView image;
        public ImageViewHolder(View itemView) {
            super (itemView);
            txtHeader = (TextView) itemView.findViewById(R.id.firstLine);
            txtFooter = (TextView) itemView.findViewById(R.id.secondLine);
             image = (ImageView) itemView.findViewById(R.id.icon);
        }
    }


    public void add(int position, Listitem item) { //changed from string to listitem

        mDataset.add(position, item);
        notifyItemInserted(position);
    }

    public void remove(String item) {
        int position = mDataset.indexOf(item);
        mDataset.remove(position);
        notifyItemRemoved(position);
    }

    // Provide a suitable constructor (depends on the kind of dataset)
    public MyAdapter(ArrayList<Listitem> myDataset, Context context) {

        mDataset = myDataset;
        mContext = context;

    }

    // Create new views (invoked by the layout manager)
    @Override
    public RecyclerView.ViewHolder  onCreateViewHolder(ViewGroup parent,
                                                       int viewType) {

            // create a new view
            View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.rowlayout, parent, false);
            // set the view's size, margins, paddings and layout parameters
            ImageViewHolder vh = new ImageViewHolder(v);
            return vh;
        }


    private static final int TYPE_IMAGE = 1;
    private static final int TYPE_GROUP = 2;

    @Override
    public int getItemViewType(int position) {
        // here your custom logic to choose the view type
        return position;
    }

    // Replace the contents of a view (invoked by the layout manager)
    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder TextViewHolder, int position) {

                ImageViewHolder viewHolder = (ImageViewHolder) TextViewHolder;
                //  viewHolder.txtHeader.setText(...)
        final Listitem item;

      //  final String name = mDataset.get(position);
        item = mDataset.get(position);
      //  viewHolder.txtHeader.setText(mDataset.get(position));
        viewHolder.txtHeader.setText(mDataset.get(position).getUrl());


        Picasso.with(mContext)
                .load(item.getUrl())
                .placeholder(R.drawable.logo)
                .fit()
                .noFade()
                .into(viewHolder.image);

              /*  viewHolder.txtFooter.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        remove(item);
                    }
                });*/

               // viewHolder.txtFooter.setText("Footer: " + mDataset.get(position));

        }


    // Return the size of your dataset (invoked by the layout manager)
    @Override
    public int getItemCount() {
        return mDataset.size();
    }

}

推荐答案

尝试调试代码并检查myMethod()方法是否已执行.

Try to debug your code and check if myMethod() method is executed.

创建适配器时也无需调用notifyDataSetChanged().

Also there is no need to call notifyDataSetChanged() when you create the adapter.

public void myMethod(ArrayList result) {
       mAdapter = new MyAdapter(result,Search.this);
       mRecyclerView.setAdapter(mAdapter);
}

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