前言
iOS的组件都是封装好的,又没法看源代码,所以我们不容易知道组件的结构,所以我们可以遍历所有的视图,打印出来,来查看结构
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static func printViewHierarchy(superView:UIView,level:Int? = 0) -> Void { let className = "\(superView.dynamicType)"; let frame = "\(superView.frame)"; for _ in 0 ..< level!{ print("\t", terminator:"") } if let backgroundColor = superView.backgroundColor{ print("\(className) \(frame) [背景色:\(backgroundColor)]") }else{ print("\(className) \(frame) [背景色:透明]") } for sonView in superView.subviews{ printViewHierarchy(sonView,level: level! + 1); } }
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