java - RecyclerView 适配器自定义监听器接口(interface)

Question

我有一个带有自定义监听器的 RecyclerView，我想在我的主要 Activity 中实现它，以便在单击 RecyclerView 项目时收到通知。

但是，我不确定将 setMyAdapterListener 放在适配器中的什么位置。我应该把它放在哪里？

public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private Context context;

    private List<Data> data;

    private MyAdapterListener myAdapterListener;

    public MyAdapter(Context context, List<Object> data) {
        this.context = context;
        this.data = data;
    }

    public interface MyAdapterListener {
        void onContainerClick();
    }

    public void setMyAdapterListener(MyAdapterListener myAdapterListener) {
        this.myAdapterListener = myAdapterListener;
    }

    public class ViewHolderItem extends RecyclerView.ViewHolder implements View.OnClickListener {
        public LinearLayout container;

        public ImageView poster;

        public ViewHolderItem(View v) {
            super(v);

            container = (LinearLayout) v.findViewById(R.id.container);

            poster = (ImageView) v.findViewById(R.id.poster);
        }

        @Override
        public void onClick(View v) {
            int id = v.getId();

            if (id == R.id.container) {
                if (myAdapterListener != null) {
                    myAdapterListener.onContainerClick();
                }
            }
        }
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        RecyclerView.ViewHolder viewHolder = null;
        LayoutInflater inflater = LayoutInflater.from(parent.getContext());

        View v2 = inflater.inflate(R.layout.item_layout, parent, false);
        viewHolder = new ViewHolderItem(v2);

        return viewHolder;
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        Data item = (Data) data.get(position);

        holder.poster.setImageDrawable(someDrawable);
    }

    @Override
    public int getItemCount() {
        return data.size();
    }

}

Answer 1

删除 setMyAdapter() 只需传递您当前在 setMyAdapterListener 中的参数作为您的 recyclerview 适配器构造函数的一部分，见下文:

public MyAdapter(Context context, List<Object> data, MyAdapterListener myAdapterListener) {
        this.context = context;
        this.data = data;
        this.myAdapterListener = myAdapterListener;
    }

//在您的 Activity 中，您必须实现接口(interface)的方法。