Swift基础－－手势识别(双击、捏、旋转、拖动、划动、长按）

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 //
//ViewController.swift
//JieUITapGestureRecognizer
//
//Createdbyjiezhangon14-10-4.
//Copyright(c)2014年jiezhang.Allrightsreserved.
 
 importUIKit
 
  @H_403_65@ classViewController:UIViewController,UIActionSheetDelegate{ 
  @H_403_65@ @IBOutletvarim:UIImageView! 
  @H_403_65@ varlastScaleFactor:CGFloat!=1//放大、缩小 varnetRotation:CGFloat=1;//旋转
 
  @H_403_65@ varnetTranslation:CGPoint!//平移 varimages:NSArray=["meinv1.jpg","mv2.jpg","mv3.jpg","mv4.jpg","mv5.jpg","mv6.jpg"]//图片数组
 
  @H_403_65@ varimageIndex:Int=0//数组下标 
 
  @H_403_65@ requiredinit(coderaDecoder:NSCoder){ 
  @H_403_65@ super.init(coder:aDecoder) netTranslation=CGPoint(x:0,y:0)
 
  @H_403_65@ } overridefuncviewDidLoad(){
 super.viewDidLoad()
 
  @H_403_65@ vartapGesture=UITapGestureRecognizer(target:self,0); background-color:inherit">action:"handleTapGesture:")//设置手势点击数,双击：点2下
 
  @H_403_65@ 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
 
  @H_403_65@ varpinchGesture=UIPinchGestureRecognizer(target:self,0); background-color:inherit">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
 
  @H_403_65@ varrotateGesture=UIRotationGestureRecognizer(target:self,0); background-color:inherit">action:"handleRotateGesture:") self.view.addGestureRecognizer(rotateGesture)
//拖手势
 
  @H_403_65@ varpanGesture=UIPanGestureRecognizer(target:self,0); background-color:inherit">action:"handlePanGesture:")//self.view.addGestureRecognizer(panGesture)
//划动手势
//右划
 varswipeGesture=UISwipeGestureRecognizer(target:self,0); background-color:inherit">action:"handleSwipeGesture:")
 
  @H_403_65@ self.view.addGestureRecognizer(swipeGesture)//左划
 
  @H_403_65@ varswipeLeftGesture=UISwipeGestureRecognizer(target:self,0); background-color:inherit">action:"handleSwipeGesture:") swipeLeftGesture.direction=UISwipeGestureRecognizerDirection.Left//不设置是右
 
  @H_403_65@ self.view.addGestureRecognizer(swipeLeftGesture)//长按手势
 varlongpressGesutre=UILongPressGestureRecognizer(target:self,0); background-color:inherit">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
 
  @H_403_65@ self.view.addGestureRecognizer(longpressGesutre) }
 
  @H_403_65@ overridefuncdidReceiveMemoryWarning(){ 
  @H_403_65@ super.didReceiveMemoryWarning()//DispoSEOfanyresourcesthatcanberecreated.
//双击屏幕时会调用此方法,放大和缩小图片
 funchandleTapGesture(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
 ifim.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
 
  @H_403_65@ }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
 
  @H_403_65@ funchandlePinchGesture(sender:UIPinchGestureRecognizer){ varfactor=sender.scale
 
  @H_403_65@ iffactor>1{//图片放大
 
  @H_403_65@ 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
 
  @H_403_65@ ifsender.state==UIGestureRecognizerState.Ended{ iffactor>1{
 
  @H_403_65@ lastScaleFactor=lastScaleFactor+factor-1 lastScaleFactor=lastScaleFactor*factor
//旋转手势
 
  @H_403_65@ funchandleRotateGesture(sender:UIRotationGestureRecognizer){//浮点类型，得到sender的旋转度数
 
  @H_403_65@ varrotation:CGFloat=sender.rotation//旋转角度CGAffineTransformMakeRotation,改变图像角度
 
  @H_403_65@ im.transform=CGAffineTransformMakeRotation(rotation+netRotation)//状态结束，保存数据
 
  @H_403_65@ netRotation+=rotation//拖手势
 funchandlePanGesture(sender:UIPanGestureRecognizer){
//得到拖的过程中的xy坐标
 vartranslation:CGPoint=sender.translationInView(im)
//平移图片CGAffineTransformMakeTranslation
 im.transform=CGAffineTransformMakeTranslation(netTranslation.x+translation.x,netTranslation.y+translation.y)
 
  @H_403_65@ netTranslation.x+=translation.x 
  @H_403_65@ netTranslation.y+=translation.y funchandleSwipeGesture(sender:UISwipeGestureRecognizer){
//划动的方向
 
  @H_403_65@ vardirection=sender.direction//判断是上下左右
 
  @H_403_65@ switch(direction){ caseUISwipeGestureRecognizerDirection.Left:
 
  @H_403_65@ println("Left") imageIndex++;//下标++
 
  @H_403_65@ break caseUISwipeGestureRecognizerDirection.Right:
 
  @H_403_65@ println("Right") imageIndex--;//下标--
 
  @H_403_65@ caseUISwipeGestureRecognizerDirection.Up: 
  @H_403_65@ println("Up") break
 
  @H_403_65@ caseUISwipeGestureRecognizerDirection.Down: println("Down")
 
  @H_403_65@ default: 
  @H_403_65@ 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]asString)
 
  @H_403_65@ funchandleLongpressGesture(sender:UILongPressGestureRecognizer){ 
  @H_403_65@ ifsender.state==UIGestureRecognizerState.Began{//创建警告
 varactionSheet=UIActionSheet(title:"Imageoptions",0); background-color:inherit">delegate:self,0); background-color:inherit">cancelButtonTitle:"cancel",0); background-color:inherit">destructiveButtonTitle:"ok",0); background-color:inherit">otherButtonTitles:"other")
 
  @H_403_65@ 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
Swift基础－－手势识别(双击、捏、旋转、拖动、划动、长按）

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