public AdapterView.OnItemClickListener mListener; // // public interface OnItemClickListener { // void onItemClick(int position); // } // public void setOnItemClickListener(OnItemClickListener listener) { // mListener = (AdapterView.OnItemClickListener) listener; // } public MyAdapter(List<DataBean> mlist, Context mcontext) { this.mlist = mlist; this.mcontext = mcontext; } @Override public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View inflate = LayoutInflater.from(mcontext).inflate(R.layout.item, parent, false); ViewHolder holder = new ViewHolder(inflate); return holder; } @Override public void onBindViewHolder(ViewHolder holder, int position) { if (TextUtils.isEmpty(mlist.get(position).getThumbnail_pic_s())&&TextUtils.isEmpty(mlist.get(position).getThumbnail_pic_s03())){ Picasso.get().load(mlist.get(position).getThumbnail_pic_s02()).into(holder.img1); holder.img.setVisibility(View.GONE); holder.img2.setVisibility(View.GONE); holder.tv.setText(mlist.get(position).getTitle()); holder.tv1.setText(mlist.get(position).getAuthor_name()); holder.tv2.setText(mlist.get(position).getCategory()); }else if (TextUtils.isEmpty(mlist.get(position).getThumbnail_pic_s02())) { Picasso.get().load(mlist.get(position).getThumbnail_pic_s()).into(holder.img); Picasso.get().load(mlist.get(position).getThumbnail_pic_s03()).into(holder.img2); holder.img1.setVisibility(View.GONE); holder.tv.setText(mlist.get(position).getTitle()); holder.tv1.setText(mlist.get(position).getAuthor_name()); holder.tv2.setText(mlist.get(position).getCategory()); }else { Picasso.get().load(mlist.get(position).getThumbnail_pic_s()).into(holder.img); Picasso.get().load(mlist.get(position).getThumbnail_pic_s02()).into(holder.img1); Picasso.get().load(mlist.get(position).getThumbnail_pic_s03()).into(holder.img2); holder.tv.setText(mlist.get(position).getTitle()); holder.tv1.setText(mlist.get(position).getAuthor_name()); holder.tv2.setText(mlist.get(position).getCategory()); } holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (mListener != null) { mListener.onItemClick(position); } } });position报红

在您的代码中，有几个问题需要解决。

首先，您定义的 `mListener` 应该是 `AdapterView.OnItemClickListener` 类型，而不是 `MyAdapter.OnItemClickListener` 类型。所以请将以下行代码从注释中移动到适当的位置：

public AdapterView.OnItemClickListener mListener;

然后，您不需要为点击事件定义一个接口，因为 `AdapterView` 已经提供了 `OnItemClickListener` 接口。只需将点击事件的监听器设置为 `mListener` 即可。

最后，关于 `position` 报红的问题，这是因为在匿名内部类中使用局部变量时，需要将其声明为 `final`。在 Java 8 及以上版本中，可以不用声明为 `final`，但仍然需要保证变量不可变。您可以将 `position` 声明为 `final`，或者使用 `holder.getAdapterPosition()` 方法获取当前项的位置。

下面是修改后的代码片段：

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    private List<DataBean> mlist;
    private Context mcontext;
    public AdapterView.OnItemClickListener mListener;

    public MyAdapter(List<DataBean> mlist, Context mcontext) {
        this.mlist = mlist;
        this.mcontext = mcontext;
    }

    // ...

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        // ...

        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (mListener != null) {
                    mListener.onItemClick(holder.getAdapterPosition());
                }
            }
        });
    }
}

请注意，为了避免引发内存泄漏，确保在不需要时及时清除对 `mListener` 的引用。