Work around的方法是先监听onTouch事件来监听连续点击次数，每次点击都布置一个间隔时间的延时任务，延时任务执行时判断间隔内是否还有点击，如果没有则发布点击次数，重置计数。
实现代码如下：
/**
* 连续点击事件监听器 可以用作双击事件
*
*/
public abstract class OnMultiTouchListener implements OnTouchListener {
/**
* 上次 onTouch 发生的时间
*/
private long lastTouchTime = 0;
/**
* 已经连续 touch 的次数
*/
private AtomicInteger touchCount = new AtomicInteger(0);
private Runnable mRun = null;
public void removeCallback() {
if (mRun != null) {
getMainLoopHandler().removeCallbacks(mRun);
mRun = null;
}
}
@Override
public boolean onTouch(final View v, final MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_UP) {
final long now = System.currentTimeMillis();
lastTouchTime = now;
touchCount.incrementAndGet();
//每点击一次就移除上一次的延迟任务，重新布置一个延迟任务
removeCallback();
mRun = new Runnable() {
@Override
public void run() { //两个变量相等,表示时隔 multiTouchInterval之后没有新的touch产生, 触发事件并重置touchCount
if (now == lastTouchTime) {
onMultiTouch(v, event, touchCount.get());
touchCount.set(0);
}
}
};
postTaskInUIThread(mRun, getMultiTouchInterval());
}
return true;
}
/**
* 连续touch的最大间隔, 超过该间隔将视为一次新的touch开始， 默认是400，推荐值，也可以由客户代码指定
*
* @return
*/
protected int getMultiTouchInterval() {
return 400;
}
/**
* 连续点击事件回调
*
* @param v
* @param event
* @param touchCount
* 连续点击的次数
* @return
*/
public abstract void onMultiTouch(View v, MotionEvent event, int touchCount);
}
使用代码：
mView.setOnTouchListener( new OnMultiTouchListener() {
@Override
public void onMultiTouch(View v, MotionEvent event, int touchCount) {
if (touchCount == 2) {
//双击
}
}
});
简洁直接的方法是用GestureDector类：
mView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
GestureDetector detector = new GestureDetector(getContext(), new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return super.onSingleTapUp(e);
}
@Override
public void onLongPress(MotionEvent e) {
super.onLongPress(e);
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
return super.onScroll(e1, e2, distanceX, distanceY);
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
return super.onFling(e1, e2, velocityX, velocityY);
}
@Override
public void onShowPress(MotionEvent e) {
super.onShowPress(e);
}
@Override
public boolean onDown(MotionEvent e) {
return super.onDown(e);
}
@Override
public boolean onDoubleTap(MotionEvent e) {
return super.onDoubleTap(e);
}
@Override
public boolean onDoubleTapEvent(MotionEvent e) {
return super.onDoubleTapEvent(e);
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
return super.onSingleTapConfirmed(e);
}
@Override
public boolean onContextClick(MotionEvent e) {
return super.onContextClick(e);
}
});
detector.onTouchEvent(event);
return false;
}
});