1.利用GameplayKit来为随机数组中的内容
countries = GKRandomSource.sharedRandom().arrayByShufflingObjects(in: countries) as! [String]
2.利用GameplayKit产生随机数
correctAnswer = GKRandomSource.sharedRandom().nextInt(upperBound: 3)
3.利用layer给控件加边框
button3.layer.borderWidth = 3
button1.layer.borderColor = UIColor.lightGray.cgColor
1.利用GameplayKit来为随机数组中的内容 2.利用GameplayKit产生随机数 3.利用layer给...
Layer input layer output layer hidden layer is "activatio...
介绍 Caption layer Header layer Body layer Navigation layer...
CAGradientLayer *layer = [CAGradientLayer layer]; layer.s...
CAGradientLayer *layer = [CAGradientLayer layer]; layer.s...
CALayer *layer = [imageView layer];layer.shadowOffset = C...
Cocoa Touch Layer Media Layer Core Services Layer Core OS...
layer.cornerRadius layer.border string 1layer.border color
layer.cornerRadius：圆角设置 layer.borderWidth：边框宽度 layer.mask...
window.layer1 = layer
本文标题：Project2-GameplayKit, layer
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