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实现RecyclerView的OnItemClick的姿势

实现RecyclerView的OnItemClick的姿势

作者: mihope | 来源:发表于2017-05-27 09:27 被阅读6次

    RecyclerView只可以设置OnItemTouchListener,那么既然可以设置监听触摸事件,就可以从中解析获取点击、长按...事件了。

    定义自己需要的回调接口

    public interface RVItemClickListener {
        void onClick(View view, int position);
    
        void onLongClick(View view, int position);
    }
    
    

    重新实现自己的OnItemTouchListener

    public class RVItemTouchListener implements RecyclerView.OnItemTouchListener {
    
        private GestureDetector gestureDetector;
        private RVItemClickListener clickListener;
    
        public RVItemTouchListener(Context context, final RecyclerView recyclerView, final RVItemClickListener clickListener) {
            this.clickListener = clickListener;
            gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
    
                @Override
                public boolean onSingleTapUp(MotionEvent e) {
                    return true;
                }
    
                @Override
                public void onLongPress(MotionEvent e) {
                    View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
                    if (child != null && clickListener != null) {
                        clickListener.onLongClick(child, recyclerView.getChildLayoutPosition(child));
                    }
                }
            });
        }
    
        @Override
        public boolean onInterceptTouchEvent(RecyclerView recyclerView, MotionEvent e) {
    
            View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
            if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
                clickListener.onClick(child, recyclerView.getChildLayoutPosition(child));
            }
            return false;
        }
    
        @Override
        public void onTouchEvent(RecyclerView rv, MotionEvent e) {
    
        }
    
        @Override
        public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
    
        }
    }
    

    使用

            recyclerView.addOnItemTouchListener(new RVItemTouchListener(this, recyclerView, new RVItemClickListener() {
                @Override
                public void onClick(View view, int position) {
    
                }
    
                @Override
                public void onLongClick(View view, int position) {
    
                }
            }));
    

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