GYGestureUnlock
Swift版仿支付宝的手势解锁，而且提供方法进行参数修改，能解决项目开发中所有手势解锁的开发
效果图
2016-08-30 19_29_03.gif
此项目起因
- 个人学习OC版手势解锁，感觉只看源码，没有太大效果，于是乎将其完全照抄转化为了神奇的Swift
- 源OC版手势解锁
- 为更深入的了解奇妙的Swift
项目简介
文件包GYTools
GYCircleConst:系统配置参数，错误语言提示，背景颜色等等，可根据自己的项目需要进行修改
GYCircleView:手势View
GYCircle:单个圆
GestureViewController:设置密码和登录两种情况的VC
GestureVerifyViewController:验证手势和修改手势的VC-
核心实现方法
GYCircleView:
实现原理:每个圆添加tag拼接为字符串保存本地(项目中可传至服务器)进行比较
//MARK:- 手势方法 began - moved - end
override func touchesBegan(touches: Set, withEvent event: UIEvent?) {
gestureEndResetMembers()
currentPoint = CGPointZero
let touch = (touches as NSSet).anyObject()let point = touch?.locationInView(self) (subviews as NSArray).enumerateObjectsUsingBlock { (circle, idx, stop) in let cir = circle as! GYCircle if CGRectContainsPoint(cir.frame, point!) { cir.state = CircleState.CircleStateSelected self.circleSet?.addObject(cir) print("添加子View的tag:\(cir.tag)") } } //数组中最后一个对象的处理 circleSetLastObjectWithState(CircleState.CircleStateLastOneSelected) setNeedsDisplay() } override func touchesMoved(touches: Set, withEvent event: UIEvent?) { currentPoint = CGPointZero let touch = (touches as NSSet).anyObject() //获取手势所在的点坐标 let point = touch?.locationInView(self) (subviews as NSArray).enumerateObjectsUsingBlock { (circle, idx, stop) in //我说 let cir = circle as! GYCircle if CGRectContainsPoint(cir.frame, point!) { //此处脑残了 self.circleSet?.containsObject(cir) != nil // 判断数组中是否包含此view 包含不添加 不包含则添加 if self.circleSet!.containsObject(cir) { // print("添加子View的tag:\(cir.tag)") // self.circleSet?.addObject(cir) // self.calAngleAndconnectTheJumpedCircle() } else { self.circleSet?.addObject(cir) // move过程中的连线(包含跳跃连线的处理) self.calAngleAndconnectTheJumpedCircle() } } else { self.currentPoint = point } } guard (self.circleSet != nil) else { return } (self.circleSet! as NSArray).enumerateObjectsUsingBlock { (circle, idx, stop) in let circlel = circle as! GYCircle circlel.state = CircleState.CircleStateSelected // 如果是登录或者验证原手势密码 就改为对应的状态 if self.type != CircleViewType.CircleViewTypeSetting { circlel.state = CircleState.CircleStateLastOneSelected } } //数组中最后一个对象的处理 self.circleSetLastObjectWithState(CircleState.CircleStateLastOneSelected) setNeedsDisplay() } override func touchesEnded(touches: Set , withEvent event: UIEvent?) { self.hasClean = false guard self.circleSet != nil else { return } let gesture = self.getGestureResultFromCircleSet(self.circleSet!) let length = gesture.length if length == 0 { return } //手势绘制结果处理 switch self.type! { case CircleViewType.CircleViewTypeSetting: gestureEndByTypeSettingWithGesture(gesture, length: CGFloat(length)) break case CircleViewType.CircleViewTypeLogin: gestureEndByTypeLoginWithGesture(gesture, length: CGFloat(length)) case CircleViewType.CircleViewTypeVerify: gestureEndByTypeVerifyWithGesture(gesture, length: CGFloat(length)) } //手势结束后是否错误回显重绘，取决于是否延时清空数组和状态复原 errorToDisplay() } //MARK:- 每添加一个圆，就计算一次方向 func calAngleAndconnectTheJumpedCircle() { if circleSet == nil || circleSet?.count <= 1 { return } //取出最后一个对象 let lastOne = circleSet?.lastObject as! GYCircle //倒数第二个 let lastTwo = circleSet?.objectAtIndex(self.circleSet!.count - 2) as! GYCircle //计算倒数第二个的位置 let last_1_x = lastOne.center.x let last_1_y = lastOne.center.y let last_2_x = lastTwo.center.x let last_2_y = lastTwo.center.y //1.计算角度（反正切函数） let angle = atan2(Float(last_1_y) - Float(last_2_y), Float(last_1_x) - Float(last_2_x)) + Float( M_PI_2) lastTwo.angle = CGFloat(angle) print(lastTwo.angle) //2.处理跳跃连线 let center = centerPointWithPointOneandTwo(lastOne.center, pointTwo: lastTwo.center) let centerCircle = self.enumCircleSetToFindWhichSubviewContainTheCenterPoint(center) if centerCircle != nil { //把跳过的圆加到数组中，他的位置是倒数第二个 if !(self.circleSet!.containsObject(centerCircle!)) { //插入数组中 self.circleSet?.insertObject(centerCircle!, atIndex: (self.circleSet?.count)! - 1) //指定此圆的角度与上一个角度相同。否则会造成移位 centerCircle?.angle = lastTwo.angle } } }
3.实现调用
switch sender.tag {
case 1:
//设置手势密码
let gesture = GestureViewController()
gesture.type = GestureViewControllerType.Setting
navigationController?.pushViewController(gesture, animated: true)
break
case 2:
//登录手势密码
print(GYCircleConst.getGestureWithKey(gestureOneSaveKey))
if GYCircleConst.getGestureWithKey(gestureFinalSaveKey) != nil {
let gestureVC = GestureViewController()
gestureVC.type = GestureViewControllerType.Login
navigationController?.pushViewController(gestureVC, animated: true)
} else {
let alertView = UIAlertView(title: "温馨提示", message: "暂未设置手势密码,是否前往设置", delegate: self, cancelButtonTitle: "取消", otherButtonTitles: "设置")
alertView.show()
}
break
case 3:
//验证手势密码
let gestureVerifyVc = GestureVerifyViewController()
navigationController?.pushViewController(gestureVerifyVc, animated: true)
break
case 4:
//修改手势密码
let gestureVerifyVc = GestureVerifyViewController()
gestureVerifyVc.isToSetNewGesture = true
navigationController?.pushViewController(gestureVerifyVc, animated: true)
break
4.遇到的swift的坑
1)各处nil
2)Swift的重写GET和SET方法
3)init初始化
4)一些可选值未初始化时会nil导致崩溃
最后，奉上源码地址求Star,大家一起学习,3Q。