如何同时处理OnTouchListener事件和OnClickListener事件

如何解决如何同时处理OnTouchListener事件和OnClickListener事件

我有RecyclerView，并且将每个项目设置为OnTouchListener和OnClickListener

OnTouchListener：

override fun onBindViewHolder(holder: ItemListViewHolder,position: Int) {
    val item = getItem(position)
    holder.bind(item)
    holder.itemView.cardview.setOnTouchListener { v,event ->
        if (event.action == MotionEvent.ACTION_DOWN) {
            Log.d(TAG,"onBindViewHolder: $event.buttonState")
            this.startDragListener.onStartDrag(holder)
        }
        return@setOnTouchListener true
    }
}

OnClickListener：（在视图持有者内部）

 init {
    itemView.setOnClickListener(this)
}

 override fun onClick(v: View?) {
        onItemClickListener.onItemClick(adapterPosition)
    }

问题是当我单击该项目时，只有startDragListener被触发，而on事件却从未触发。

关于这个问题，我在stackoverflow上读到了类似的问题，但是其中大多数是非常旧的/过时的方法

如何解决此问题并同时处理触摸监听器和点击监听器？

解决方法

请参阅，onClickListener不能与onTouchListener一起使用。您将必须实现一些逻辑，以区分onTouchListener中的单击和拖动。我做了这样的事情，代码在Java中，但是您可以找到一个主意。

t = [{'Sr. No.': '983','Hotel Code': 'TN05553556','State': 'Tamilnadu','Cost': '1110','Ratings': '5.3'},{'Sr. No.': '984','Hotel Code': 'KA86403535','State': 'Karnataka','Cost': '1010','Ratings': '6.5'},{'Sr. No.': '985','Hotel Code': 'TN23687028','Cost': '1790','Ratings': '5.5'},{'Sr. No.': '986','Hotel Code': 'KA36970858','Cost': '1300','Ratings': '8.6'},{'Sr. No.': '987','Hotel Code': 'MH38461439','State': 'Maharashtra','Cost': '2200','Ratings': '3'},{'Sr. No.': '988','Hotel Code': 'KA20076818','Cost': '1340','Ratings': '7.1'},{'Sr. No.': '989','Hotel Code': 'TN13118419','Cost': '910','Ratings': '6.2'},{'Sr. No.': '990','Hotel Code': 'KA14225819','Cost': '470','Ratings': '2.6'},{'Sr. No.': '991','Hotel Code': 'MH29527861','Ratings': '2.2'},{'Sr. No.': '992','Hotel Code': 'MH29382347','Cost': '2160','Ratings': '8.2'},{'Sr. No.': '993','Hotel Code': 'MH11989011','Cost': '2110','Ratings': '2'},{'Sr. No.': '994','Hotel Code': 'KA25450392','Cost': '1450','Ratings': '9'},{'Sr. No.': '995','Hotel Code': 'KA66177616','Cost': '2030','Ratings': '2.3'},{'Sr. No.': '996','Hotel Code': 'MH45682094','Ratings': '2.4'},{'Sr. No.': '997','Hotel Code': 'TN79155458','Cost': '1620','Ratings': '4.6'},{'Sr. No.': '998','Hotel Code': 'KA26726731','Cost': '850','Ratings': '8'},{'Sr. No.': '999','Hotel Code': 'TN09700536','Cost': '1550',{'Sr. No.': '1000','Hotel Code': 'MH38559747','Cost': '600','Ratings': '4'}]

maxPricedItem = max(t,key=lambda x:int(x["Cost"]))

print(maxPricedItem)

,

您需要实现一个GestureListener来拦截点击事件和其他手势事件。

public class MyGestureListener extends GestureDetector.SimpleOnGestureListener {

private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;

@Override
public boolean onDown(MotionEvent event) {
    // don't return false here or else none of the other
    // gestures will work
    return true;
}

@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
    onClick();
    return true;
}

@Override
public void onLongPress(MotionEvent e) {

}

@Override
public boolean onDoubleTap(MotionEvent e) {

    return true;
}

@Override
public boolean onScroll(MotionEvent e1,MotionEvent e2,float distanceX,float distanceY) {

    return true;
}

@Override
public boolean onFling(MotionEvent event1,MotionEvent event2,float velocityX,float velocityY) {
    float diffX = event2.getX() - event1.getX();
    float diffY = event2.getY() - event1.getY();
    if (Math.abs(diffX)<Math.abs(diffY)) {
        if (Math.abs(diffY)>SWIPE_THRESHOLD && Math.abs(velocityY)>SWIPE_VELOCITY_THRESHOLD) {
            float y2 = event2.getY();
            float y1 = event1.getY();
            if (y2>y1) {
                onSwipeDown();
            } else {
                onSwipeUp();
            }
        }
    }
    return true;
}


public void onClick () {

}

public void onSwipeDown () {

}

public void onSwipeUp () {

}
}

然后：

final GestureDetector mDetector = new GestureDetector(getActivity(),new MyGestureListener() {
        public void onClick() {
            manageTopBar();
        }

        public void onSwipeDown() {
            expandChampion();
        }

        public void onSwipeUp() {
            collapseChampion();
        }
    });

    myView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View view,MotionEvent motionEvent) {
            return mDetector.onTouchEvent(motionEvent);
        }
    });

您可以根据需要向MyGestureListener类添加更多方法。

,

将您的onClickListener代码更改为此：

 itemView.setOnClickListener(object : View.OnClickListener 
    { override fun onClick(v: View) {
     /*do work*/
    } 
    })