自定义封装进度提示框《MrLoadView》

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封装MrLoadView类： MrLoadView程序源代码下载

          **效果图：**

这里写图片描述

// 关键代码    /**     初始化UI布局     */    func setUI() {        if(self.titleLabel != nil) {            self.titleLabel!.removeFromSuperview()        }        // 底部的灰色layer        let bottomShapeLayer = CAShapeLayer()        bottomShapeLayer.strokeColor = self.bottomColor.CGColor        bottomShapeLayer.fillColor = UIColor.clearColor().CGColor        bottomShapeLayer.lineWidth = MrShapeLayerLineWidth        // 图形的路径        bottomShapeLayer.path = UIBezierPath(roundedRect: CGRect(x: MrShapeLayerMargin, y: 0, width: MrShapeLayerWidth, height: MrShapeLayerWidth), cornerRadius: MrShapeLayerRadius).CGPath        self.layer.addSublayer(bottomShapeLayer)        // 橘黄色的layer        let ovalShapeLayer = CAShapeLayer()        ovalShapeLayer.strokeColor = self.animationColor.CGColor        ovalShapeLayer.fillColor = UIColor.clearColor().CGColor        ovalShapeLayer.lineWidth = MrShapeLayerLineWidth        // 分割点效果        ovalShapeLayer.lineDashPattern = [6, 3]        ovalShapeLayer.path = UIBezierPath(roundedRect: CGRect(x: MrShapeLayerMargin, y: 0, width: MrShapeLayerWidth, height: MrShapeLayerWidth), cornerRadius: MrShapeLayerRadius).CGPath        self.layer.addSublayer(ovalShapeLayer)        //  起点动画        let strokeStartAnimation = CABasicAnimation(keyPath: "strokeStart")        strokeStartAnimation.fromValue = -1        strokeStartAnimation.toValue = 1.0        //  终点动画        let strokeEndAnimation = CABasicAnimation(keyPath: "strokeEnd")        strokeEndAnimation.fromValue = 0.0        strokeEndAnimation.toValue = 1.0        //  组合动画        let animationGroup = CAAnimationGroup()        animationGroup.animations = [strokeStartAnimation, strokeEndAnimation]        animationGroup.duration = (Double)(MrAnimationDurationTime)        animationGroup.repeatCount = (Float)(CGFloat.max)        // 设置保存动画的最新状态        animationGroup.fillMode = kCAFillModeForwards        // 设置动画执行完毕之后不删除动画        animationGroup.removedOnCompletion = false        // 添加核心动画到layer        ovalShapeLayer.addAnimation(animationGroup, forKey: nil)        self.titleLabel = UILabel()        self.titleLabel!.frame = CGRectMake(0, MrShapeLayerWidth + 5, MrLoadingViewWidth + 10, 30)        self.titleLabel!.numberOfLines = 0        self.titleLabel!.text = self.message        self.titleLabel!.textColor = MrLoadingTextColor        self.titleLabel!.font = UIFont.systemFontOfSize(12)        self.titleLabel!.textAlignment = NSTextAlignment.Center        self.addSubview(self.titleLabel!)    }    /**     显示加载动画     */    func showLoadingView() {        if(isShowing == true) {  // 如果没有退出动画， 就不能继续添加            return        }        isShowing = true        self.addSelfViewToWindow()    }    /**     关闭加载动画     */    func dismissLoadingView() {        if(isShowing == false) {            return        }        isShowing = false        self.removeFromSuperview()    }    /**     显示加载动画（带毛玻璃效果）     */    func showLoadingViewWithBlur() {        if(isShowing == true) { // 如果没有退出动画，就不能继续添加            return        }        isShowing = true        self.addSelfViewToWindow()        // 拿到主窗口        let window = UIApplication.sharedApplication().keyWindow        // view的x        let viewCenterX: CGFloat = CGRectGetWidth(UIScreen.mainScreen().bounds)/2        // view的Y        let viewCenterY: CGFloat = CGRectGetHeight(UIScreen.mainScreen().bounds)/2        // 初始化模糊效果        blurView = UIVisualEffectView(effect: UIBlurEffect(style: UIBlurEffectStyle.Light))        blurView?.layer.cornerRadius = 10        blurView?.layer.masksToBounds = true        blurView?.frame = CGRectMake(0, 0, 100, 100)        blurView?.center = CGPointMake(viewCenterX, viewCenterY)        /**        添加毛玻璃效果        */        window?.insertSubview(blurView!, belowSubview: self)    }    /**     将本身添加到主窗口     */    func addSelfViewToWindow() {        // 拿到主窗口        let window = UIApplication.sharedApplication().keyWindow        // view的x        let viewCenterX: CGFloat = CGRectGetWidth(UIScreen.mainScreen().bounds)/2        // view的Y        let viewCenterY: CGFloat = CGRectGetHeight(UIScreen.mainScreen().bounds)/2        self.frame = CGRectMake(0, 0, MrLoadingViewWidth, MrLoadingViewWidth)        self.center = CGPointMake(viewCenterX, viewCenterY)        // 添加到主窗口中去        window?.addSubview(self)    }}

使用测试：

    func showLoadView(sender: UIButton) {        let loadView = MrLoadView.sharedInstance//        loadView.message = "努力加载中..."//        loadView.animationColor = UIColor.greenColor()//        loadView.bottomColor = UIColor.grayColor()        loadView.showLoadingViewWithBlur()    }    func dismissLoadView(sender: UIButton) {        MrLoadView.sharedInstance.dismissLoadingViewWithBlur()    }    override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {        MrLoadView.sharedInstance.dismissLoadingViewWithBlur()    }

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