Swift version imitation NetEase cloud music play Music animation effect

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Create a view that inherits from UIView we call him Xtactivityview.

        /// 立方柱的个数    var0;        /// 立方柱的颜色    var rectBackgroundColor: UIColor?        /// 立方柱初始化大小    var defaultSize: CGSize?        /// 立方柱之间的间距    var0.0

To initialize

CGRect) {        super.init(frame: frame)        self.createDefaultAttribute(frame)    }

CGRect) -> Void {        6;        self.rectBackgroundColorUIColor.blackColor()        1;        defaultSize = frame.size    }

Provides start and end interfaces (that is, create and remove)

func startAnimation() {        self.addRect()    }func stopAnimation() {        self.removeRect()    }

Add a rectangle

Func addrect (), Void {self. Removerect() Self. Hidden= False For Iinch 0... Numberofrect{Letx= (cgfloat) (i) * (5+ space) Let Rview = UIView. Init(Frame:cgrectmake (x,0,5, defaultsize!. Height)) Rview. BackgroundColor= Rectbackgroundcolor Rview. Layer. Addanimation(Self. Addanimatewithdelay((Double) (i) *0.2), Forkey:"Tbrotate") Self. Addsubview(Rview)} }

Animation effects

Func Addanimatewithdelay (delay:double), caanimation {Let animation = Cabasicanimation. Init(KeyPath:"Transform.rotation.x") animation. RepeatCount= Maxfloat;Animation. Removedoncompletion= True;Animation. Autoreverses= False;Animation. Timingfunction= Camediatimingfunction. Init(name:kcamediatimingfunctionlinear) Animation. Fromvalue= NSNumber. Init(Float:0) animation. Tovalue= NSNumber. Init(DOUBLE:M_PI) Animation. Duration= (Double) (numberofrect) *0.2;Animation. BeginTime= Cacurrentmediatime () + delay;return animation;}

Remove Rectangle

-> Void {        ifself.subviews.>0 {            self.removeFromSuperview()        }        self.=true    }

Called in the Controller

self.view.backgroundColor = UIColor.whiteColor()let xt = XTActivityView.init(frame: CGRectMake(0108015))xt.startAnimation()self.navigationItem.rightBarButtonItem = UIBarButtonItem.init(customView: xt)xt.performSelector(Selector("stopAnimation"5)

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Welcome to the Personal Technology blog station

Swift version imitation NetEase cloud music play Music animation effect