自定义高效支持点击监听的RecyclerView

效果图

Demo

地址：

传统做法

在Adapter内部直接对View添加点击事件

因为这种方式虽然也可以解决点击监听问题，但是效率不高，所以我就截了一张图，大家也就不要想着复制了，

话说我原来也是一直用这种方式，直到看到一篇文章：

性能上肯定是有一定提升，下面我对此进行了一下封装

封装

package kong.qingwei.recyclerviewitemclickdemo;import android.content.Context;import android.support.annotation.Nullable;import android.support.v4.view.GestureDetectorCompat;import android.support.v7.widget.RecyclerView;import android.util.AttributeSet;import android.view.GestureDetector;import android.view.MotionEvent;import android.view.View;/** * Created by kqw on 2016/5/18. * KqwRecyclerView * 支持点击监听的RecyclerView */public class KqwRecyclerView extends RecyclerView implements RecyclerView.OnItemTouchListener {
         private GestureDetectorCompat mGestureDetector;    private OnItemClickListener mOnItemClickListener;    private OnItemLongClickListener mOnItemLongClickListener;    public KqwRecyclerView(Context context, @Nullable AttributeSet attrs) {        super(context, attrs);        initRecyclerView();    }    private void initRecyclerView(){        mGestureDetector = new GestureDetectorCompat(getContext(), new ItemTouchHelperGestureListener());        addOnItemTouchListener(this);    }    @Override    public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {        mGestureDetector.onTouchEvent(e);        return false;    }    @Override    public void onTouchEvent(RecyclerView rv, MotionEvent e) {        mGestureDetector.onTouchEvent(e);    }    @Override    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {    }    private class ItemTouchHelperGestureListener extends GestureDetector.SimpleOnGestureListener {
             @Override        public boolean onSingleTapUp(MotionEvent e) {            View child = findChildViewUnder(e.getX(), e.getY());            if (child != null) {                RecyclerView.ViewHolder vh = getChildViewHolder(child);                // 回调                if (mOnItemClickListener != null) {                    mOnItemClickListener.onItemClick(vh);                }            }            return true;        }        @Override        public void onLongPress(MotionEvent e) {            View child = findChildViewUnder(e.getX(), e.getY());            if (child!=null) {                RecyclerView.ViewHolder vh = getChildViewHolder(child);                // 回调                if (mOnItemLongClickListener != null) {                    mOnItemLongClickListener.onItemLongClick(vh);                }            }        }    }    public interface OnItemClickListener {
             void onItemClick(ViewHolder v);    }    public interface OnItemLongClickListener {
             boolean onItemLongClick(ViewHolder v);    }    public void setOnItemClickListener(@Nullable OnItemClickListener listener) {        mOnItemClickListener = listener;    }    public void setOnItemLongClickListener(OnItemLongClickListener listener) {        if (!isLongClickable()) {            setLongClickable(true);        }        mOnItemLongClickListener = listener;    }}

使用

使用和ListView一样

KqwRecyclerView recyclerView = (KqwRecyclerView) findViewById(R.id.recyclerView);……recyclerView.setOnItemClickListener(new KqwRecyclerView.OnItemClickListener() {    @Override    public void onItemClick(RecyclerView.ViewHolder v) {        Toast.makeText(getApplicationContext(), "onItemClick\n" + v.toString(), Toast.LENGTH_SHORT).show();    }});recyclerView.setOnItemLongClickListener(new KqwRecyclerView.OnItemLongClickListener() {    @Override    public boolean onItemLongClick(RecyclerView.ViewHolder v) {        Toast.makeText(getApplicationContext(), "onItemLongClick\n" + v.toString(), Toast.LENGTH_SHORT).show();        return false;    }});