常用手势: 滑动,轻点,捏合,旋转,拖拽,长按
1.滑动(快速滑动)
let swipeUp = UISwipeGestureRecognizer(target: self, action: Selector("swipe:"))
swipeUp.direction = UISwipeGestureRecognizerDirection.Up
self.view.addGestureRecognizer(swipeUp)
let swipeDown = UISwipeGestureRecognizer(target: self, action: Selector("swipe:"))
swipeDown.direction = UISwipeGestureRecognizerDirection.Down
self.view.addGestureRecognizer(swipeDown)
let swipeLeft = UISwipeGestureRecognizer(target: self, action: Selector("swipe:"))
swipeLeft.direction = UISwipeGestureRecognizerDirection.Left
self.view.addGestureRecognizer(swipeLeft)
let swipeRight = UISwipeGestureRecognizer(target: self, action: Selector("swipe:"))
swipeRight.direction = UISwipeGestureRecognizerDirection.Right
self.view.addGestureRecognizer(swipeRight)
获取手势事件
func swipe(recognizer:UISwipeGestureRecognizer){
if recognizer.direction == UISwipeGestureRecognizerDirection.Up{
print("向左滑动")
}else if recognizer.direction == UISwipeGestureRecognizerDirection.Left{
print("向左滑动")
}
let point = recognizer.locationInView(self.view)
print(point.x,point.y)
}
2.轻点手势(点击)
//单击监听
let tapSingle = UITapGestureRecognizer(target: self, action: Selector("tapSingleDid"))
tapSingle.numberOfTapsRequired = 1//点按的次数
tapSingle.numberOfTouchesRequired = 1//点按的手指数
//双击监听
let tapDouble = UITapGestureRecognizer(target: self, action: Selector("tapDoubleDid:"))
tapDouble.numberOfTapsRequired = 2
tapDouble.numberOfTouchesRequired = 1
self.view.addGestureRecognizer(tapSingle)
self.view.addGestureRecognizer(tapDouble)
//先检测是否为双击,当确定不是双击之后再执行单击
tapSingle.requireGestureRecognizerToFail(tapDouble)
点击事件
func tapSingleDid(){
print("单击")
}
func tapDoubleDid(sender: UITapGestureRecognizer){
if sender.view == self.view{
print("双击")
}
}
3.捏合手势
let pinch = UIPinchGestureRecognizer(target: self, action: Selector("pinchDid:"))
self.view.addGestureRecognizer(pinch)
事件
func pinchDid(pinch:UIPinchGestureRecognizer){
print(pinch.scale)//捏合比例
}
4.旋转手势
let rotation = UIRotationGestureRecognizer(target: self, action: Selector("rotationDid:"))
self.view.addGestureRecognizer(rotation)
事件
func rotationDid(recognizer:UIRotationGestureRecognizer){
print(recognizer.rotation*(180/CGFloat(M_PI)))//转成常用度数了
}
5.拖动手势
var panV : UIView!
panV = UIView(frame: CGRectMake(0, 0, 100, 100))
panV.center = self.view.center
panV.backgroundColor = UIColor.redColor()
self.view.addSubview(panV)
let pan = UIPanGestureRecognizer(target: self, action: Selector("panDid:"))
panV.addGestureRecognizer(pan)
事件
func panDid(recognizer:UIPanGestureRecognizer){
let point = recognizer.locationInView(self.view)
panV.center = point
}
6.长按手势
let long = UILongPressGestureRecognizer(target: self, action: Selector("longDid:"))
self.view.addGestureRecognizer(long)
事件
func longDid(recognizer:UILongPressGestureRecognizer){
if recognizer.state == .Began{//由于长按会执行多次,所以需要判断手势状态
print("长按手势触发")
}
}