一个swift 4的
源代码---> https://github.com/XLsn0w/XLsn0wQuora
let heartEmitter = CAEmitterLayer.initAtPosition(position: CGPoint(x: 200, y: 200), size: CGSize(width: 30, height: 30))
view.layer.addSublayer(heartEmitter)
有空访问我的Github: https://github.com/XLsn0w
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