SimpleAnimation和UIBezierPath

SimpleAnimation

@objc func rightButtonItem() -> Void{
        UIView.animate(withDuration: 1.0) {
            self.animationView.frame = CGRect(x: self.view.frame.width / 2 - 50, y: 100, width: 100, height: 100)
            self.animationView.alpha = 1.0
            self.animationView.backgroundColor = UIColor.red
        }
    }
 
 <!--动画改变视图的x,y,width,height-->   
    func animation(x: CGFloat,y: CGFloat, width: CGFloat, height: CGFloat) -> Void {
        UIView.animate(withDuration: 1.0) {
            var rect = self.animationView.frame
            rect.origin.x += x
            rect.origin.y += y
            rect.size.width += width
            rect.size.height += height
            self.animationView.frame = rect
        };
    }
    <!--动画改变视图的alpha-->
    func animationAlpha(alpha: CGFloat) -> Void {
        UIView.animate(withDuration: 1.0, animations: {
            self.animationView.alpha = alpha
        }) { (success) in
//            alpha变0 就要去移除view
//            self.animationView.removeFromSuperview()
        }
    }
    <!--动画改变视图的color-->
    func animationBackgroundColor(color: UIColor) -> Void {
        UIView.animate(withDuration: 1.0) {
            self.animationView.backgroundColor = color
        }
    }

keyFrameAnimation

   <!--扇页旋转-->
func drawAnimation() -> Void {
        let animation = CABasicAnimation.init(keyPath: "transform.rotation.z")
        animation.fromValue = 0
        animation.toValue = CGFloat(Double.pi * 2)
        animation.duration = 3.0
        animation.autoreverses = false;
        animation.fillMode = CAMediaTimingFillMode.forwards;
        animation.repeatCount = MAXFLOAT;
        self.ellipseView.layer.add(animation, forKey: nil)
    }
    
 <!--弧形动效-->
    func animationPosition(value: CGFloat) -> Void {
        //        添加动画
        baseAnimation = CABasicAnimation(keyPath: "strokeEnd")
        baseAnimation.duration = 2   //持续时间
        baseAnimation.fromValue = 0  //开始值
        baseAnimation.toValue = value   //结束值
        //        保持运动后的位置不变
        baseAnimation.isRemovedOnCompletion = false
        baseAnimation.fillMode = CAMediaTimingFillMode.forwards
        animationView.shapeLayer.add(baseAnimation, forKey: "strokeEndAnimation")
    }

圆弧动效

 let bezierPath = UIBezierPath.init()
    let shapeLayer = CAShapeLayer.init()
    
    <!--有些属性必须要在draw 方法里才能生效-->
    override func draw(_ rect: CGRect) {
        // Drawing code
        let radius = rect.width / 2.0 - 20        //确定半径
//        绘制圆弧
        bezierPath.addArc(withCenter: CGPoint(x: 100, y: 100), radius: radius, startAngle: CGFloat(0.25 + Double.pi / 2.0), endAngle:CGFloat(2 * Double.pi + Double.pi / 2.0 - 0.25), clockwise: true)
        bezierPath.lineWidth = 5
        UIColor.red.setStroke()      // 设置路径颜色
        bezierPath.stroke()
//        绘制添加动画路径蒙层
        shapeLayer.lineWidth = 5
        shapeLayer.strokeColor = UIColor.green.cgColor
        shapeLayer.fillColor = UIColor.white.cgColor
        shapeLayer.path = bezierPath.cgPath
        layer.addSublayer(shapeLayer)
    }

扇页动效

    override func draw(_ rect: CGRect) {
        
//        绘制中心原点
        let circleBezier = UIBezierPath.init()
        circleBezier.addArc(withCenter: CGPoint(x: 100, y: 100), radius: 5, startAngle: 0, endAngle: CGFloat(Double.pi * 2), clockwise: true)
        UIColor.green.setFill()
        circleBezier.close()
        circleBezier.lineWidth = 1
        circleBezier.fill()
        

        // 绘制扇叶
        let ellipseView = UIView.init(frame: CGRect(x: 0, y: 0, width: 80, height: 5))
        ellipseView.center = CGPoint(x: 100, y: 40)
        ellipseView.backgroundColor = UIColor.white
        self.addSubview(ellipseView)
        
        let ellipseView2 = UIView.init(frame: CGRect(x: 0, y: 0, width: 80, height: 5))
        ellipseView2.center = CGPoint(x: 50, y: (50 + sqrt(7500)))
        ellipseView2.backgroundColor = UIColor.white
        self.addSubview(ellipseView2)
        
        let ellipseView3 = UIView.init(frame: CGRect(x: 0, y: 0, width: 80, height: 5))
        ellipseView3.center = CGPoint(x: 150, y: (50 + sqrt(7500)))
        ellipseView3.backgroundColor = UIColor.white
        self.addSubview(ellipseView3)
        
        let path = UIBezierPath.init(ovalIn:ellipseView.bounds)
        let pathLayer = CAShapeLayer.init()
        pathLayer.lineWidth = 1
        pathLayer.strokeColor = UIColor.green.cgColor
        pathLayer.path = path.cgPath
        pathLayer.fillColor = nil
        ellipseView.layer.addSublayer(pathLayer)
        
        let path2 = UIBezierPath.init(ovalIn:ellipseView2.bounds)
        let pathLayer2 = CAShapeLayer.init()
        pathLayer2.lineWidth = 1
        pathLayer2.strokeColor = UIColor.green.cgColor
        pathLayer2.path = path2.cgPath
        pathLayer2.fillColor = nil
        ellipseView2.layer.addSublayer(pathLayer2)
        
        let path3 = UIBezierPath.init(ovalIn:ellipseView3.bounds)
        let pathLayer3 = CAShapeLayer.init()
        pathLayer3.lineWidth = 1
        pathLayer3.strokeColor = UIColor.green.cgColor
        pathLayer3.path = path3.cgPath
        pathLayer3.fillColor = nil
        ellipseView3.layer.addSublayer(pathLayer3)
        
        UIView.animate(withDuration: 0) {
            ellipseView.transform = CGAffineTransform(rotationAngle: CGFloat(Double.pi / 2.0))
            ellipseView2.transform = CGAffineTransform(rotationAngle: CGFloat(-Double.pi / 4.0 + (1 / 12)))
            ellipseView3.transform = CGAffineTransform(rotationAngle: CGFloat(-Double.pi / 4.0 * 3 - (1 / 12)))
        }
        
        
        
    }
    

扇形

 override func draw(_ rect: CGRect) {
        // Drawing code
        let circleBezier = UIBezierPath.init()
        circleBezier.addArc(withCenter: CGPoint(x: 100, y: 100), radius: 100, startAngle: CGFloat(Double.pi / 2.0 - 0.1), endAngle: CGFloat(Double.pi / 2.0 + 0.1), clockwise: true)
        UIColor.green.setStroke()
        circleBezier.addLine(to: CGPoint(x: 100, y: 100))
        circleBezier.close()
        circleBezier.lineWidth = 1
        circleBezier.stroke()

    }

直通车： https://github.com/princeSmall/Swift_Animations