recycleview嵌套recycleview点击事件

要实现RecycleView嵌套RecycleView的点击事件，需要在Adapter中设置点击事件监听器，并将其传递给子RecycleView的Adapter。

首先，在父RecycleView的Adapter中，实现一个接口来处理子RecycleView的点击事件。例如：

public interface OnChildClickListener {
    void onChildClick(View view, int parentPosition, int childPosition);
}

然后，在父RecycleView的Adapter中，设置一个OnChildClickListener对象，并在点击事件中调用它：

public class ParentAdapter extends RecyclerView.Adapter<ParentAdapter.ViewHolder> {
    private ArrayList<ArrayList<String>> mData;
    private OnChildClickListener mChildClickListener;

    public ParentAdapter(ArrayList<ArrayList<String>> data) {
        mData = data;
    }

    public void setOnChildClickListener(OnChildClickListener listener) {
        mChildClickListener = listener;
    }

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

    @Override
    public void onBindViewHolder(ViewHolder holder, final int position) {
        // set the data for each item in the view holder
        ArrayList<String> childData = mData.get(position);
        ChildAdapter childAdapter = new ChildAdapter(childData);
        childAdapter.setOnChildClickListener(new ChildAdapter.OnChildClickListener() {
            @Override
            public void onChildClick(View view, int childPosition) {
                // pass the click event to the parent adapter
                if (mChildClickListener != null) {
                    mChildClickListener.onChildClick(view, position, childPosition);
                }
            }
        });
        holder.childRecyclerView.setAdapter(childAdapter);
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {
        RecyclerView childRecyclerView;

        public ViewHolder(View v) {
            super(v);
            childRecyclerView = (RecyclerView) v.findViewById(R.id.child_recycler_view);
        }
    }
}

在上面的代码中，我们在onBindViewHolder()方法中创建一个ChildAdapter，并将其设置为子RecycleView的Adapter。同时，我们还设置了一个OnChildClickListener对象，并在ChildAdapter中调用它来处理子RecycleView的点击事件。

接下来，我们需要在ChildAdapter中设置一个OnChildClickListener对象，并在点击事件中调用它：

public class ChildAdapter extends RecyclerView.Adapter<ChildAdapter.ViewHolder> {
    private ArrayList<String> mData;
    private OnChildClickListener mChildClickListener;

    public ChildAdapter(ArrayList<String> data) {
        mData = data;
    }

    public void setOnChildClickListener(OnChildClickListener listener) {
        mChildClickListener = listener;
    }

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

    @Override
    public void onBindViewHolder(ViewHolder holder, final int position) {
        // set the data for each item in the view holder
        String item = mData.get(position);
        holder.textView.setText(item);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                // pass the click event to the parent adapter
                if (mChildClickListener != null) {
                    mChildClickListener.onChildClick(view, position);
                }
            }
        });
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {
        TextView textView;

        public ViewHolder(View v) {
            super(v);
            textView = (TextView) v.findViewById(R.id.text_view);
        }
    }

    public interface OnChildClickListener {
        void onChildClick(View view, int childPosition);
    }
}

在上面的代码中，我们在onBindViewHolder()方法中设置了一个点击事件监听器，并在点击事件中调用了OnChildClickListener对象来处理点击事件。

最后，在Activity或Fragment中，我们需要设置ParentAdapter的OnChildClickListener对象，并在回调方法中处理点击事件：

parentAdapter.setOnChildClickListener(new ParentAdapter.OnChildClickListener() {
    @Override
    public void onChildClick(View view, int parentPosition, int childPosition) {
        // handle the child item click event here
    }
});

在上面的代码中，我们设置了一个ParentAdapter的OnChildClickListener对象，并在回调方法中处理子RecycleView的点击事件。