iOS 8 颠倒方向，启用 XCode 选项，仍然不起作用
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iOS 8 upside down orientation, XCode option enabled, still doesn't work
提问by Cleversou
I have a universal application being developed in iOS8 (XCode 6.1.1). It will support all the 4 orientations (left, right, portrait & upside down).
我有一个在 iOS8 (XCode 6.1.1) 中开发的通用应用程序。它将支持所有 4 个方向（左、右、纵向和倒置）。
The problem is that, although in XCode the four options for supported orientations are checked, only left, right & portrait are working properly. So, is there a bug on XCode or iOS8? My info.plistshows all the supported orientations, but when I run the app on simulator or on the device it doesn't 'flip' the orientation when it's upside down. (PS: it's an singleview app, it doesn't have any navigation controller).
问题是，虽然在 XCode 中检查了支持方向的四个选项，但只有左、右和纵向可以正常工作。那么，XCode 或 iOS8 上是否存在错误？我的info.plist显示了所有支持的方向，但是当我在模拟器或设备上运行应用程序时，当它颠倒时它不会“翻转”方向。（PS：它是一个单视图应用程序，它没有任何导航控制器）。
Thanks!
谢谢！
Cleverson
克莱弗森
采纳答案by Cleversou
Well, I have figured out the purpose of the the options on project configuration... Within the options you're saying "my app support these orientations" and not "my app must use these four options"... So, on iPhone you must explicity say that a particular ViewController support all orientations (the upsidedown doesn't make parte of the default orientations, for a reason that I dont know)... The code should be like this for supporting all orientations:
嗯，我已经弄清楚了项目配置选项的目的......在选项中你说“我的应用程序支持这些方向”而不是“我的应用程序必须使用这四个选项”......所以，在 iPhone 上你必须明确地说一个特定的 ViewController 支持所有方向（颠倒不会使默认方向成为一部分，原因我不知道）......代码应该是这样的以支持所有方向：
override func supportedInterfaceOrientations() -> Int{
return Int(UIInterfaceOrientationMask.All.rawValue)
}
回答by Aral Balkan
With Swift 2.1, you can simplify @Cleversou's answer to:
使用 Swift 2.1，您可以将@Cleversou 的回答简化为：
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask
{
return .All
}
With Swift 2.3
使用 Swift 2.3
override var supportedInterfaceOrientations : UIInterfaceOrientationMask {
return .all
}
回答by siraustin
If you are running inside of a navigation controller or tab bar controller, you will need to do the same override in your subclass or override all instances with an extension:
如果您在导航控制器或标签栏控制器内部运行，则需要在子类中执行相同的覆盖或使用扩展覆盖所有实例：
extension UINavigationController {
override public func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
return .All
}
}
extension UITabBarController {
override public func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
return .All
}
}
Edit: as of Swift 3.0 / iOS 9 (and possibly earlier) this would be:
编辑：从 Swift 3.0 / iOS 9（可能更早版本）开始，这将是：
extension UINavigationController {
override open var supportedInterfaceOrientations : UIInterfaceOrientationMask {
return .all
}
}
extension UITabBarController {
override open var supportedInterfaceOrientations : UIInterfaceOrientationMask {
return .all
}
}
