如何处理Android中recyclerView中的多次布局点击 [英] How to handle multiple layout clicks in recyclerView in Android

问题描述

在我们的应用中，我们有消息列表.我们正在切换到 RecyclerView.我们的消息可以由文本、图像组成.示例消息可能如下所示.

In our app we have list of messages. We are switching to RecyclerView. Our messages can consist from texts, images. Sample message can look like this.

要处理点击，请使用此类:

To handle clicks use this class:

public class RecyclerViewItemClickListener implement  RecyclerView.OnItemTouchListener {

    public static interface OnItemClickListener {
        public void onItemClick(View view, int position);
        public void onItemLongClick(View view, int position);
    }

    private OnItemClickListener mListener;
    private GestureDetector mGestureDetector;

    public RecyclerViewItemClickListener(Context context, final RecyclerView recyclerView, OnItemClickListener listener) {
        mListener = listener;
        mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
            @Override
            public boolean onSingleTapUp(MotionEvent e) {
                return true;
            }

            @Override
            public void onLongPress(MotionEvent e)
            {
                View childView = recyclerView.findChildViewUnder(e.getX(), e.getY());
                if(childView != null && mListener != null)
                {
                    mListener.onItemLongClick(childView, recyclerView.getChildAdapterPosition(childView));
                }
            }
        });
    }

    @Override
    public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
        View childView = view.findChildViewUnder(e.getX(), e.getY());
        if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
            mListener.onItemClick(childView, view.getChildAdapterPosition(childView));
        }
        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {
    }
}

我们在活动中实现这种点击:

and we implement this clicks in activity like this:

chatView.setLongClickable(true);
        chatView.addOnItemTouchListener(
                new RecyclerViewItemClickListener(this, chatView, new RecyclerViewItemClickListener.OnItemClickListener() {
                    @Override public void onItemClick(View view, int position) {

                        //handleSingleClick(view, position);

                    }
                    @Override
                    public void onItemLongClick(View view, int position)
                    {
                        handleLongPress(position);
                    }
                })
        );

点击消息正在工作，现在我还想处理来自同一 GestureDetection 的 userAvatar 点击.是否可以检测从 GestureDetector 中单击了哪个列表项布局?

Clicks for message is working, now I want also handle userAvatar clicks from same GestureDetection. Is it possible to detect which list item layout was clicked from GestureDetector?

换句话说，我可以让 GestureDetecter 点击孩子.在我的例子中，点击设置为整个项目(头像、短信、图片).我能检测到这个项目中的哪个元素被点击了吗(例如我想捕捉头像点击).

In other words, can I get GestureDetecter clicked child. In my case click is set to whole item(avatar, text message, image). Can I detect which element inside this item was clicked(for example I want catch avatar click).

推荐答案

像下面的例子那样处理你的 RecyclerView 的适配器中的点击:

Handle the click in the adapter of your RecyclerView like below example:

private class BookmarkViewHolder extends RecyclerView.ViewHolder {

        protected ImageView thumbnailIcon;
        protected TextView postTitle;
        protected TextView postViewCount;

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

            thumbnailIcon = (ImageView) v.findViewById(R.id.thumbnailIcon);
            postTitle = (TextView) v.findViewById(R.id.postTitleTV);
            postViewCount = (TextView) v.findViewById(R.id.viewCountTV);

            v.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {                                                
                }
            });

            thumbnailIcon.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {                                                
                }
            });

            postTitle.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {                                                
                }
            });


        }
    }

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