1 blueView = UIView() 2 blueView.frame = CGRectMake(50, 100, 100, 100) 3 blueView.backgroundColor = UIColor.blueColor() 4 self.view.addSubview(blueView) 5  6 yellowView = UIView() 7 yellowView.frame = CGRectMake(50 + 200 / 1.414, 100, 100, 100)//注意yellowView的水平位置,和blueView作對(duì)比 8 yellowView.backgroundColor = UIColor.yellowColor() 9 self.view.addSubview(yellowView)10 11 blueView.transform = CGAffineTransformIdentity  //初始化transform12 blueView.transform = CGAffineTransformMakeScale(0.5, 0.5 )  //縮小0.5倍13 blueView.transform = CGAffineTransformRotate(blueView.transform, CGFloat(M_PI_4))   //旋轉(zhuǎn)pi/414 blueView.transform = CGAffineTransformTranslate(blueView.transform, 400, 0) //平移400

1 blueLayer.transform = CATransform3DIdentity  //初始化transform2 blueLayer.transform = CATransform3DMakeScale(0.5, 0.5, 0)  //縮小0.5倍3 blueLayer.transform = CATransform3DRotate(blueLayer.transform,CGFloat( M_PI_4 ), 0.0,  1.0, 0) //旋轉(zhuǎn)pi/44 blueLayer.transform = CATransform3DTranslate(blueLayer.transform,400, 0, 0)     //平移400

1 var transform = CATransform3DIdentity //初始化transform2 transform.m34 = -1 / 500.0 //設(shè)置m34的值3 // transform = CATransform3DScale( transform, 0.5, 0.5, 0) //縮小0.5倍,這里不能用4 transform = CATransform3DRotate(transform,CGFloat( M_PI_4 ), 0.0,  1.0, 0) //旋轉(zhuǎn)pi/45 transform = CATransform3DTranslate(transform,400, 0, 0)     //平移4006 blueLayer.transform = transform

DEMO1:
 1 let shapePath = UIBezierPath() 2 shapePath.moveToPoint(CGPointMake(175, 100)) 3 shapePath.addArcWithCenter(CGPointMake(150, 100), radius: 25, startAngle: 0, endAngle:CGFloat( 2 * M_PI ), clockwise: true) 4 shapePath.moveToPoint(CGPointMake(150, 125)) 5 shapePath.addLineToPoint(CGPointMake(150, 175)) 6 shapePath.addLineToPoint(CGPointMake(125, 225)) 7 shapePath.moveToPoint(CGPointMake(150, 175)) 8 shapePath.addLineToPoint(CGPointMake(175, 225)) 9 shapePath.moveToPoint(CGPointMake(100, 150))10 shapePath.addLineToPoint(CGPointMake(200, 150))11 12 let shapeLayer = CAShapeLayer()13 shapeLayer.strokeColor = UIColor.redColor().CGColor14 shapeLayer.fillColor = UIColor.clearColor().CGColor15 shapeLayer.lineWidth = 516 shapeLayer.lineJoin = kCALineJoinRound17 shapeLayer.lineCap = kCALineCaPRound18 shapeLayer.path = shapePath.CGPath19 self.view.layer.addSublayer(shapeLayer)

DEMO2:
1 var rect = CGRectMake(50, 50, 100, 100);2 var radii = CGSizeMake(20, 20);3 var corners = UIRectCorner.TopRight | UIRectCorner.BottomRight | UIRectCorner.BottomLeft4 var shapePath = UIBezierPath(roundedRect: rect, byRoundingCorners: corners, cornerRadii: radii) 

 1 var textLayer = CATextLayer() 2 textLayer.frame = CGRectMake(100, 100, 200, 300) 3 self.view.layer.addSublayer(textLayer) 4  5 //設(shè)置它的屬性 6 textLayer.foregroundColor = UIColor.redColor().CGColor 7 textLayer.alignmentMode = kCAAlignmentJustified 8 textLayer.wrapped = true 9 10 //它的font是CGFont類型,需要大小字體分開(kāi)設(shè)置11 var font = UIFont.systemFontOfSize(24)12 textLayer.font = CGFontCreateWithFontName(font.fontName)13 textLayer.fontSize = font.pointSize14 15 var textStr = "hello kitty hi nohhhh no wo  shi lllll aaaaawo  jiojhello kitty hi nohhhh no wo  shi lllll aaaaawo  jioj"16 textLayer.string = textStr17 18 //它c(diǎn)ontentScale默認(rèn)是1,為了讓它以retina的質(zhì)量來(lái)顯示,設(shè)置為219 textLayer.contentsScale = UIScreen.mainScreen().scale

1 gradientLayer = CAGradientLayer()2 gradientLayer.frame = CGRectMake(50, 50, 300, 300)3 gradientLayer.backgroundColor = UIColor.grayColor().CGColor4 self.view.layer.addSublayer(gradientLayer)5 6 gradientLayer.colors = [UIColor.redColor().CGColor,UIColor.blueColor().CGColor, UIColor.greenColor().CGColor]7 gradientLayer.startPoint = CGPointMake(0, 0)8 gradientLayer.endPoint = CGPointMake(1, 1)

 1 repeatLayer = CAReplicatorLayer() 2 repeatLayer.frame = CGRectMake(50, 50, 300, 300) 3 repeatLayer.backgroundColor = UIColor.grayColor().CGColor 4 self.view.layer.addSublayer(repeatLayer) 5  6 var transform = CATransform3DIdentity 7 transform = CATransform3DTranslate(transform, 0, 100, 0); 8 transform = CATransform3DRotate(transform, CGFloat( M_PI / 5.0 ), 0, 0, 1); 9 transform = CATransform3DTranslate(transform, 0, -100, 0);10 repeatLayer.instanceTransform = transform;11 12 repeatLayer.instanceCount = 1013 14 repeatLayer.instanceBlueOffset = -0.115 repeatLayer.instanceRedOffset = -0.116 17 var layer  = CALayer()18 layer.frame = CGRect(x: 125, y: 125, width: 50, height: 50)19 layer.backgroundColor = UIColor.whiteColor().CGColor20 repeatLayer.addSublayer(layer) 

1 NSTimer.scheduledTimerWithTimeInterval(2, target: self, selector: NSSelectorFromString("setPosition"), userInfo: nil, repeats: false)2 3 func setPosition () {4     self.scrollLayer.scrollToPoint(CGPointMake(0, 100))5 }

 1 emitterLayer = CAEmitterLayer() 2 emitterLayer.frame = CGRectMake(100 , 100, 200, 200) 3 emitterLayer.backgroundColor = UIColor.grayColor().CGColor 4 self.view.layer.addSublayer(emitterLayer) 5  6 emitterLayer.renderMode = kCAEmitterLayerAdditive 7 emitterLayer.emitterPosition = CGPointMake(emitterLayer.frame.size.width / 2, emitterLayer.frame.size.height / 2) 8  9 var cell = CAEmitterCell()10 cell.contents = UIImage(named: "lizi.png")?.CGImage11 cell.birthRate = 10 //粒子出現(xiàn)的速率12 cell.lifetime = 4.0 //聲明周期,秒13 cell.emissionRange = 2 //發(fā)射的方向14 15 cell.color = UIColor(red: 1, green: 1, blue: 0.5, alpha: 1).CGColor //粒子的顏色16 cell.alphaspeed = -0.4 //透明度改變速率17 cell.velocity = 50//粒子運(yùn)動(dòng)速度18 cell.velocityRange = 100//粒子速度范圍,約束速度19 20 emitterLayer.emitterCells = [cell]

 1 var urlStr = NSBundle.mainBundle().pathForResource("1.mp4", ofType: nil) 2 var url = NSURL(fileURLWithPath: urlStr!) 3 var player = AVPlayer(URL: url) 4  5 var playLayer = AVPlayerLayer(player: player) 6 playLayer.frame = CGRectMake(0, 0,400, 300) 7 playLayer.backgroundColor = UIColor.grayColor().CGColor 8 self.view.layer.addSublayer(playLayer) 9 10 player.play()