RecyclerView添加条目点击事件setOnItemClickListener，不是在Adapter中设置；

RecyclerView不像ListView，可以直接写setOnItemClickListener，我们大部分都是在Adapter中的设置点击事件，这个是使用RecyclerView的addOnItemTouchListener方法，利用手势监听器实现条目点击事件；

public class VpRecyView extends RecyclerView{

    public VpRecyView(Context context) {
        super(context);
        init();
    }

    public VpRecyView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        init();
    }



    private void init() {
        this.addOnItemTouchListener(new RecyclerItemClickListener(this.getContext(), new RecyclerItemClickListener.OnItemClickListener() {
            @Override
            public void onItemClick(View view, int position) {
               if (onpagerClickListener != null) onpagerClickListener.onPagerClick(view,position);
            }

            @Override
            public void onLongClick(View view, int posotion) {
                if (onpagerLongClickListener != null) onpagerLongClickListener.onPagerLongClick(view,posotion);
            }
        }));
    }

    interface onPagerClickListener{
        void onPagerClick(View view,int position);
    }
    private onPagerClickListener onpagerClickListener;
    public void setOnPagerClickListener(onPagerClickListener onpagerClickListener){
        this.onpagerClickListener = onpagerClickListener;
    }

    interface onPagerLongClickListener{
        void onPagerLongClick(View view,int position);
    }
    private onPagerLongClickListener onpagerLongClickListener;
    public void setOnPagerLongClickListener(onPagerLongClickListener onpagerLongClickListener){
        this.onpagerLongClickListener = onpagerLongClickListener;
    }
}

RecyclerItemClickListener：这个类使用GestureDetector实现点击、双击、长按等的监听；

public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
        private GestureDetector mGestureDetector;
        private View childView;
        private RecyclerView touchView;

        public RecyclerItemClickListener(Context context, final OnItemClickListener mListener) {
            mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
                @Override
                public boolean onSingleTapUp(MotionEvent ev) {
                    if (childView != null && mListener != null) {
                        mListener.onItemClick(childView, touchView.getChildPosition(childView));
                    }
                    return true;
                }

                @Override
                public void onLongPress(MotionEvent ev) {
                    if (childView != null && mListener != null) {
                        mListener.onLongClick(childView, touchView.getChildPosition(childView));
                    }
                }
            });
        }

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

            void onLongClick(View view, int posotion);
        }

        @Override
        public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
            mGestureDetector.onTouchEvent(e);
            childView = rv.findChildViewUnder(e.getX(), e.getY());
            touchView = rv;
            return false;
        }

        @Override
        public void onTouchEvent(RecyclerView rv, MotionEvent e) {

        }

        @Override
        public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

        }
    }

这样就能和ListView的条目点击事件一样使用了，不需要写在Adapter中； 我是从其它代码块中抽取出来的，还可以再简化；

   rv.setOnPagerClickListener(new VpRecyView.onPagerClickListener() {
                    @Override
                    public void onPagerClick(View view, int position) {
                        Log.i(TAG, "onPagerClick: "+datas1.get(position));
                    }
                });

---

在Adapter中如何实现条目点击事件，这个就比较简单了；在BaseAdapter中写一个接口监听就行了；

interface OnItemClickListener {
        void onItemClick(View view, int position);
    }
    private OnItemClickListener mOnItemClickListener;
    public RecyclerAdapter setOnItemClickListener(OnItemClickListener listener) {
        this.mOnItemClickListener = listener;
        return this;
    }

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