swift 中手势的使用

/**点击手势*/

func tapGestureDemo() {

    //建立手势识别器

    let gesture = UITapGestureRecognizer(target: self, action: "viewTap:")

    //附加识别器到视图

    self.view1.addGestureRecognizer(gesture)

}

/**缩放手势*/

func pinchGestureDemo() {

    //建立手势识别器

    let gesture = UIPinchGestureRecognizer(target: self, action: "viewPinch:")

    //附加识别器到视图

    self.view1.addGestureRecognizer(gesture)

}

/**旋转手势*/

func rotationGestureDemo() {

    //建立手势识别器

    let gesture = UIRotationGestureRecognizer(target: self, action: "viewRotation:")

    //附加识别器到视图

    self.view1.addGestureRecognizer(gesture)

}

/**滑动手势*/

func swipeGestureDemo() {

    //建立手势识别器

    let gesture = UISwipeGestureRecognizer(target: self, action: "viewSwipe:")

    //附加识别器到视图

    self.view1.addGestureRecognizer(gesture)

}

/**平移手势*/

func panGestureDemo() {

    //建立手势识别器

    let gesture = UIPanGestureRecognizer(target: self, action: "viewPan:")

    //附加识别器到视图

    self.view1.addGestureRecognizer(gesture)

}

/**长按手势*/

func LongPressGestureDemo() {

    //建立手势识别器

    let gesture = UILongPressGestureRecognizer(target: self, action: "viewLongPress:")

    //附加识别器到视图

    self.view1.addGestureRecognizer(gesture)

}

/**自定义手势*/

func custonGestureDemo() {

    //建立手势识别器

    let gesture = CustomGestureRecognizer(target: self, action: "viewCustom:")

    //附加识别器到视图

    self.view1.addGestureRecognizer(gesture)

}

//-----------------------手势action事件---------------------------

/**点击事件*/

@IBAction func viewTap(sender: UITapGestureRecognizer) {

    print("clicked...")

}

/**缩放事件*/

func viewPinch(sender: UIPinchGestureRecognizer) {

    print("pinch...")

    let _width = view1.bounds.width

    let _height = view1.bounds.height

    view1.bounds.size = CGSize(width: _width * sender.scale, height: _height * sender.scale)

}

/**旋转事件*/

func viewRotation(sender: UIRotationGestureRecognizer) {

    view1.transform = CGAffineTransformMakeRotation(sender.rotation)

}

/**滑动事件*/

var offsetX: CGFloat = 0

func viewSwipe(sender: UISwipeGestureRecognizer) {

    if sender.direction == UISwipeGestureRecognizerDirection.Right {

        //每次向右平移20

        offsetX += 20

        view1.transform = CGAffineTransformMakeTranslation(offsetX, 0)

    }

}

/**平移事件*/

func viewPan(sender: UIPanGestureRecognizer) {

    let _transX = sender.translationInView(view1).x

    let _transY = sender.translationInView(view1).y

    view1.transform = CGAffineTransformMakeTranslation(_transX, _transY)

}

/**长按事件*/

func viewLongPress(sender: UILongPressGestureRecognizer) {

    print("long pressed....")

}

func viewCustom(sender: CustomGestureRecognizer) {

    print("custom gesture...")

}