//  
//  ViewController.swift  
//  JieUITapGestureRecognizer  
//  
//  Created by jiezhang on 14-10-4.  
//  Copyright (c) 2014年 jiezhang. All rights reserved.  
//  
  
import UIKit  
  
class ViewController: UIViewController, UIActionSheetDelegate {  
      
    @IBOutlet var im: UIImageView!  
    var lastScaleFactor : CGFloat! = 1  //放大、缩小  
    var netRotation : CGFloat = 1;//旋转  
    var netTranslation : CGPoint!//平移  
    var images : NSArray = [“meinv1.jpg”,“mv2.jpg”,“mv3.jpg”,“mv4.jpg”,“mv5.jpg”,“mv6.jpg”]// 图片数组  
    var imageIndex : Int = 0 //数组下标  
  
      
    required init(coder aDecoder: NSCoder) {  
        super.init(coder: aDecoder)  
        netTranslation = CGPoint(x: 0, y: 0)  
    }  
      
    override func viewDidLoad() {  
        super.viewDidLoad()  
        
          
        var tapGesture = UITapGestureRecognizer(target: self, action: “handleTapGesture:”)  
        //设置手势点击数,双击：点2下  
        tapGesture.numberOfTapsRequired = 2  
        self.view.addGestureRecognizer(tapGesture)  
          
        //手势为捏的姿势:按住option按钮配合鼠标来做这个动作在虚拟器上  
        var pinchGesture = UIPinchGestureRecognizer(target: self, action: “handlePinchGesture:”)  
        self.view.addGestureRecognizer(pinchGesture)  
          
        //旋转手势:按住option按钮配合鼠标来做这个动作在虚拟器上  
        var rotateGesture = UIRotationGestureRecognizer(target: self, action: “handleRotateGesture:”)  
        self.view.addGestureRecognizer(rotateGesture)  
          
        //拖手势  
        var panGesture = UIPanGestureRecognizer(target: self, action: “handlePanGesture:”)  
//        self.view.addGestureRecognizer(panGesture)  
          
        //划动手势  
        //右划  
        var swipeGesture = UISwipeGestureRecognizer(target: self, action: “handleSwipeGesture:”)  
        self.view.addGestureRecognizer(swipeGesture)  
        //左划  
        var swipeLeftGesture = UISwipeGestureRecognizer(target: self, action: “handleSwipeGesture:”)  
        swipeLeftGesture.direction = UISwipeGestureRecognizerDirection.Left //不设置是右  
        self.view.addGestureRecognizer(swipeLeftGesture)  
          
        //长按手势  
        var longpressGesutre = UILongPressGestureRecognizer(target: self, action: “handleLongpressGesture:”)  
        //长按时间为1秒  
        longpressGesutre.minimumPressDuration = 1  
        //允许15秒运动  
        longpressGesutre.allowableMovement = 15  
        //所需触摸1次  
        longpressGesutre.numberOfTouchesRequired = 1  
        self.view.addGestureRecognizer(longpressGesutre)  
    }  
  
    override func didReceiveMemoryWarning() {  
        super.didReceiveMemoryWarning()  
        // Dispose of any resources that can be recreated.  
    }  
      
    //双击屏幕时会调用此方法,放大和缩小图片  
    func handleTapGesture(sender: UITapGestureRecognizer){  
        //判断imageView的内容模式是否是UIViewContentModeScaleAspectFit,该模式是原比例，按照图片原时比例显示大小   
        if im.contentMode == UIViewContentMode.ScaleAspectFit{  
            //把imageView模式改成UIViewContentModeCenter，按照图片原先的大小显示中心的一部分在imageView  
           im.contentMode = UIViewContentMode.Center  
        }else{  
            im.contentMode = UIViewContentMode.ScaleAspectFit  
        }  
    }  
      
    //捏的手势，使图片放大和缩小，捏的动作是一个连续的动作  
    func handlePinchGesture(sender: UIPinchGestureRecognizer){  
        var factor = sender.scale  
        if factor > 1{  
            //图片放大  
            im.transform = CGAffineTransformMakeScale(lastScaleFactor+factor-1, lastScaleFactor+factor-1)  
        }else{  
            //缩小  
            im.transform = CGAffineTransformMakeScale(lastScaleFactor*factor, lastScaleFactor*factor)  
        }  
        //状态是否结束，如果结束保存数据  
        if sender.state == UIGestureRecognizerState.Ended{  
            if factor > 1{  
                lastScaleFactor = lastScaleFactor + factor – 1  
            }else{  
                lastScaleFactor = lastScaleFactor * factor  
            }  
        }  
    }  
      
    //旋转手势  
    func handleRotateGesture(sender: UIRotationGestureRecognizer){  
        //浮点类型，得到sender的旋转度数   
        var rotation : CGFloat = sender.rotation  
        //旋转角度CGAffineTransformMakeRotation,改变图像角度  
        im.transform = CGAffineTransformMakeRotation(rotation+netRotation)  
        //状态结束，保存数据  
        if sender.state == UIGestureRecognizerState.Ended{  
            netRotation += rotation  
        }  
    }  
    //拖手势  
    func handlePanGesture(sender: UIPanGestureRecognizer){  
        //得到拖的过程中的xy坐标  
        var translation : CGPoint = sender.translationInView(im)  
        //平移图片CGAffineTransformMakeTranslation  
        im.transform = CGAffineTransformMakeTranslation(netTranslation.x+translation.x, netTranslation.y+translation.y)  
        if sender.state == UIGestureRecognizerState.Ended{  
            netTranslation.x += translation.x  
            netTranslation.y += translation.y  
        }  
    }  
    //划动手势  
    func handleSwipeGesture(sender: UISwipeGestureRecognizer){  
        //划动的方向  
        var direction = sender.direction  
        //判断是上下左右  
        switch (direction){  
        case UISwipeGestureRecognizerDirection.Left:  
            println(“Left”)  
            imageIndex++;//下标++  
            break  
        case UISwipeGestureRecognizerDirection.Right:  
            println(“Right”)  
            imageIndex–;//下标–  
            break  
        case UISwipeGestureRecognizerDirection.Up:  
            println(“Up”)  
            break  
        case UISwipeGestureRecognizerDirection.Down:  
            println(“Down”)  
            break  
        default:  
            break;  
        }  
        //得到不越界不<0的下标  
        imageIndex = imageIndex < 0 ? images.count-1:imageIndex%images.count  
        //imageView显示图片  
        im.image = UIImage(named: images[imageIndex] as String)  
    }  
      
    //长按手势  
    func handleLongpressGesture(sender : UILongPressGestureRecognizer){  
          
        if sender.state == UIGestureRecognizerState.Began{  
            //创建警告  
            var actionSheet = UIActionSheet(title: “Image options”, delegate: self, cancelButtonTitle: “cancel”, destructiveButtonTitle: “ok”, otherButtonTitles: “other”)  
            actionSheet.showInView(self.view)  
        }  
    }  
}  

注意：滑动手势和拖手势冲突，两个选一个测试，至于测试的效果自己新建一个工程来把代码加入就行