ios - statusBarOrientation 返回(枚举值)

Question

println(\(UIApplication.sharedApplication().statusBarOrientation))

将 (Enum Value) 打印到控制台。我可以在不求助于 statusBarOrientation 属性的情况下打印有意义的版本吗

if UIApplication.sharedApplication().statusBarOrientation == .Portrait

等等？

Answer 1

您可以添加符合 UIInterfaceOrientation 到 Printable 协议(protocol)的扩展。

extension UIInterfaceOrientation: Printable {
    public var description: String {
        switch self {
        case Unknown:
            return "Unknown"
        case Portrait:
            return "Portrait"
        case PortraitUpsideDown:
            return "PortraitUpsideDown"
        case LandscapeLeft:
            return "LandscapeLeft"
        case LandscapeRight:
            return "LandscapeRight"
            }
    }
}

然后你可以:

println(UIApplication.sharedApplication().statusBarOrientation)