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1.
imageView.layer.allowsEdgeAntialiasing = YES; // OC
2.衣厨 搭配时 边框 缩放 有 矩齿
self.layer.borderWidth = 2/sqrt( self.transform.a*self.transform.a + self.transform.b*self.transform.b)
self.layer.borderColor = UIColor.CustomRed().CGColor
self.layer.allowsEdgeAntialiasing = true //抗矩齿性
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原文地址:http://my.oschina.net/u/2331935/blog/488765