0 解析关于手势操作事件
1>UI时间分类
（1）touch：各种手势
（2）motion：例如到传感器，例如摇晃
（3）Remote control:利用外部设备，例如插入耳机
2>Touch事件阶段
touch begin --> touch move --> touch end --> touch cancel
多指手势流程：
3>Recognize UIView ViewController的关系
1 点击-UITapGestureRecognizer
override func viewDidLoad() { super.viewDidLoad() let rect=CGRect(x:80,y:200,width:200,height:200); var view1 = UIView(frame: rect) view1.backgroundColor = UIColor.redColor() self.view.addSubview(view1) //1,建立手势识别器 var gesture = UITapGestureRecognizer(target: self, action: "viewAction:")#warning 如果想要识别器能够识别多种触控，例如1点和2点，那就要建立2个UITapGestureRecognizer gesture.numberOfTapsRequired = 2 //点击次数 // gesture.numberOfTouchesRequired = 2 //多点触摸 //2,关联识别器到视图 view1.addGestureRecognizer(gesture) } //3，手势引用的动作 func viewAction(sender:UITapGestureRecognizer){ //获得点击处的位置 var point:CGPoint = sender.locationInView(self.view) println("\(point)") println("clicked") } 2 放大缩放UIPinchGestureRecognizer
override func viewDidLoad() { super.viewDidLoad() //1,建立手势识别器 var gesture = UIPinchGestureRecognizer(target: self, action: "viewAction:") //2,关联识别器到视图 view1.addGestureRecognizer(gesture) } //3，手势引用的动作 func viewAction(sender:UIPinchGestureRecognizer){ var _height = view1.bounds.height var _width = view1.bounds.width view1.bounds.size = CGSize(width: _width * sender.scale, height: _height * sender.scale) }
3 旋转UIRotationGestureRecognizer
override func viewDidLoad() { super.viewDidLoad() //1,建立手势识别器 var gesture = UIRotationGestureRecognizer(target: self, action: "viewAction:") //2,关联识别器到视图 view1.addGestureRecognizer(gesture) } //3，手势引用的动作 func viewAction(sender:UIRotationGestureRecognizer){ view1.transform = CGAffineTransformMakeRotation(sender.rotation) }
4 滑动UISwipeGestureRecognizer
var offsetX:CGFloat = 0.0 override func viewDidLoad() { super.viewDidLoad() //1,建立手势识别器 var gesture = UISwipeGestureRecognizer(target: self, action: "viewAction:") //设置多指 gesture.numberOfTouchesRequired = 2; //2,关联识别器到视图 view1.UISwipeGestureRecognizer(gesture) } //3，手势引用的动作 func viewAction(sender:UISwipeGestureRecognizer){ offsetX += 20.0 //方向属性 if(sender.direction == UISwipeGestureRecognizerDirection.Right){ view1.transform = CGAffineTransformMakeTranslation(offsetX, 0) } } 5 平移UIPanGestureRecognizer
override func viewDidLoad() { super.viewDidLoad() var gesture = UIPanGestureRecognizer(target: self, action: "view1Tap:") //支持的多指范围 gesture.minimumNumberOfTouches = 1; gesture.maximumNumberOfTouches = 2; view1.addGestureRecognizer(gesture) } //3，手势引用的动作 func viewAction(sender:UIPanGestureRecognizer){ //相对于view1视图偏移的位置 var _transX = sender.translationInView(view1).x var _transY = sender.translationInView(view1).y view1.transform = CGAffineTransformMakeTranslation(_transX, _transY) }
6 长按UILongPressGestureRecognizer
override func viewDidLoad() { super.viewDidLoad() var gesture = UILongPressGestureRecognizer(target: self, action: "view1Tap:") //需要的点数和点击次数 // gesture.numberOfTouchesRequired // gesture.numberOfTapsRequired //最短长按时间 gesture.minimumPressDuration = 1 //运行移动的点数，在这个范围内不发生动作。默认是10 gesture.allowableMovement = 10 view1.addGestureRecognizer(gesture) } //3，手势引用的动作 func viewAction(sender:UILongPressGestureRecognizer){ UIAlertView(title: "longpress", message: "你长按了", delegate: self, cancelButtonTitle: "确定").show() } //2.获取手势的view的坐标点 CGPoint location = [recognizer locationInView:recognizer.view]; //3.判断点是否在rect范围 BOOL isyes = CGRectContainsPoint(btn.frame, location);
7 UIScreenEdgePanGestureRecognizer
class UIScreenEdgePanGestureRecognizer : UIPanGestureRecognizer { var edges: UIRectEdge //< The edges on which this gesture recognizes, relative to the current interface orientation}是pan的子类，从边缘出来
8 自定义手势
//// UICustomGestureRecognizer.swift// ttt//// Created by ling on 15/8/26.// Copyright (c) 2015年 ling. All rights reserved.//import UIKitimport UIKit.UIGestureRecognizerSubclassclass UICustomGestureRecognizer: UIGestureRecognizer { var leftTop = false var rightBttom = false //初始化 override init(target: AnyObject, action: Selector) { super.init(target: target, action: action) } override func touchesBegan(touches: Set !, withEvent event: UIEvent!) { return } override func touchesMoved(touches: Set !, withEvent event: UIEvent!) { var myTouch = (touches as NSSet).anyObject() as! UITouch var myLocation = myTouch.locationInView(self.view) if(myLocation.x < 10 && myLocation.y < 10){ leftTop = true; } if((myLocation.x + 10) > self.view?.bounds.width && (myLocation.y + 10) > self.view?.bounds.height){ rightBttom = true } if(leftTop && rightBttom){ self.state = UIGestureRecognizerState.Ended } println("\(myLocation)") } override func touchesEnded(touches: Set !, withEvent event: UIEvent!) { self.reset() } override func touchesCancelled(touches: Set !, withEvent event: UIEvent!) { return } }//// UICustomGestureRecognizer.swift// ttt//// Created by ling on 15/8/26.// Copyright (c) 2015年 ling. All rights reserved.//import UIKitimport UIKit.UIGestureRecognizerSubclassclass UICustomGestureRecognizer: UIGestureRecognizer { var leftTop = false var rightBttom = false //初始化 override init(target: AnyObject, action: Selector) { super.init(target: target, action: action) } override func touchesBegan(touches: Set !, withEvent event: UIEvent!) { return } override func touchesMoved(touches: Set !, withEvent event: UIEvent!) { var myTouch = (touches as NSSet).anyObject() as! UITouch var myLocation = myTouch.locationInView(self.view) if(myLocation.x < 10 && myLocation.y < 10){ leftTop = true; } if((myLocation.x + 10) > self.view?.bounds.width && (myLocation.y + 10) > self.view?.bounds.height){ rightBttom = true } if(leftTop && rightBttom){ self.state = UIGestureRecognizerState.Ended } println("\(myLocation)") } override func touchesEnded(touches: Set !, withEvent event: UIEvent!) { self.reset() } override func touchesCancelled(touches: Set !, withEvent event: UIEvent!) { return } }