For iOS developers，The face of app piracy，The biggest problem is not a technical break，Instead, more and more sharing of pirated Apple ID，Some people might say that piracy is equivalent to a "trial" of the，Like people will naturally go into positive ...... but in fact，Because of penny share account of piracy，Led to numerous independent developers and ultimately to the vote resume。
In short，last year，Surge author[……]
On iOS，If we want to display a shadow View，So basically do：
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self.view.layer?.shadowColor = NSColor.black.cgColor self.view.layer?.shadowOpacity = 0.1 self.view.layer?.shadowOffset = CGSize(width: 0, height: 0) self.view.layer?.shadowRadius = 3 self.view.layer?.masksToBounds = false |
but，To the macOS，This would not work - no effect。
The answer lies in the macOS a View If you want to use [crayon-662cab7[……]