Swift中實現(xiàn)點擊、雙擊、捏、旋轉、拖動、劃動、長按手勢的類和方法介紹

更新時間：2015年01月09日 12:46:34 投稿：junjie

這篇文章主要介紹了Swift中實現(xiàn)點擊、雙擊、捏、旋轉、拖動、劃動、長按手勢的類和方法介紹,本文分別給出了各種手勢的實現(xiàn)代碼,需要的朋友可以參考下

1.UITapGestureRecognizer 點擊/雙擊手勢

var tapGesture = UITapGestureRecognizer(target: self, action: "handleTapGesture:")  

//設置手勢點擊數(shù),雙擊：點2下  

tapGesture.numberOfTapsRequired = 2  

self.view.addGestureRecognizer(tapGesture)

2.UIPinchGestureRecognizer 捏 (放大/縮小)手勢

復制代碼代碼如下:

var pinchGesture = UIPinchGestureRecognizer(target: self, action: "handlePinchGesture:")  

self.view.addGestureRecognizer(pinchGesture)

3.UIRotationGestureRecognizer 旋轉手勢

復制代碼代碼如下:

var rotateGesture = UIRotationGestureRecognizer(target: self, action: "handleRotateGesture:")  

 self.view.addGestureRecognizer(rotateGesture)  

4. UIPanGestureRecognizer 拖動手勢

復制代碼代碼如下:

 var panGesture = UIPanGestureRecognizer(target: self, action: "handlePanGesture:")  

 self.view.addGestureRecognizer(panGesture)  

5. UISwipeGestureRecognizer 劃動手勢

復制代碼代碼如下:

var swipeGesture = UISwipeGestureRecognizer(target: self, action: "handleSwipeGesture:")  

swipeGesture.direction = UISwipeGestureRecognizerDirection.Left //不設置是右  

self.view.addGestureRecognizer(swipeGesture)

6. UILongPressGestureRecognizer 長按手勢

復制代碼代碼如下:

   var longpressGesutre = UILongPressGestureRecognizer(target: self, action: "handleLongpressGesture:")
    //長按時間
    // longpressGesutre.minimumPressDuration
    //所需觸摸次數(shù)
    /// longpressGesutre.numberOfTouchesRequired
    self.view.addGestureRecognizer(longpressGesutre)
UIGestureRecognizerState 枚舉定義如下

enum UIGestureRecognizerState : Int {

case Possible // the recognizer has not yet recognized its gesture, but may be evaluating touch events. this is the default state

    case Began // the recognizer has received touches recognized as the gesture. the action method will be called at the next turn of the run loop
    case Changed // the recognizer has received touches recognized as a change to the gesture. the action method will be called at the next turn of the run loop
    case Ended // the recognizer has received touches recognized as the end of the gesture. the action method will be called at the next turn of the run loop and the recognizer will be reset to UIGestureRecognizerStatePossible
    case Cancelled // the recognizer has received touches resulting in the cancellation of the gesture. the action method will be called at the next turn of the run loop. the recognizer will be reset to UIGestureRecognizerStatePossible

case Failed // the recognizer has received a touch sequence that can not be recognized as the gesture. the action method will not be called and the recognizer will be reset to UIGestureRecognizerStatePossible
}

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