ios - touchesBegan 多次调用

Question

我有一个奇怪的问题，touchesBegan 处理程序被多次调用。如果我快速点击 UIView (UIButton) 2 次，touchesBegan 被调用 3 次。

我通过简单的时间测量解决了这个问题，但我仍然对这种行为的原因很感兴趣？

这是代码(已经添加了时间检查):

override func touchesMoved(touches: NSSet, withEvent event: UIEvent) {
    if let t:UITouch = touches.anyObject() as? UITouch
    {
        if !CGRectContainsPoint(CGRectMake(0, 0, self.frame.width, self.frame.height), t.locationInView(self))
        {
            touchesCancelled(touches, withEvent: event)
        }
    }
}

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    ForCancelTouch = false
    setupButtonGUI(true)
}

override func touchesEnded(touches: NSSet, withEvent event: UIEvent) {
    if !ForCancelTouch
    {
        if abs(LastValidTouchesBeganDate.timeIntervalSinceNow) > DelayBetweenFastTapping
        {
            NSNotificationCenter.defaultCenter().postNotificationName(SBDCNotificationNameActionSTBMakeOneCommand, object: self, userInfo: ["tag":self.tag])
            LastValidTouchesBeganDate = NSDate()
        }
    }
    setupButtonGUI(false)
}

override func touchesCancelled(touches: NSSet!, withEvent event: UIEvent!) {
    ForCancelTouch = true
    setupButtonGUI(false)
}

Answer 1

好吧 - 似乎只有在 iOS 模拟器中用鼠标单击/测试时才会出现此问题!看起来这是一个 iOS 模拟器错误。