在纵向状态下强制旋转 UIViewController

Question

在这种环境下（修复项目配置中的支持方向为纵向）

你能在 Landscape 中显示特定的 UIViewController 吗？

Answer 1

简短的回答是你不能，因为根据 Apple 文档 here

The system intersects the view controller's supported orientations with the app's supported orientations (as determined by the Info.plist file or the app delegate's application(_:supportedInterfaceOrientationsFor:) method) and the device's supported orientations to determine whether to rotate.

要实现您的需要，您还应该将允许的方向设置为横向，然后在您的视图控制器中实现以下内容以允许纵向或横向（或两者）：

override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.portrait//or UIInterfaceOrientationMask.landscape
  }

然后要强制特定方向，您可以将方向设置为 UIDevice：

UIDevice.current.setValue(UIInterfaceOrientation.landscapeLeft.rawValue, forKey: "orientation")

在纵向状态下强制旋转 UIViewController

Force rotate UIViewController in Portrait status

ios

objective-c

uiviewcontroller

landscape

device-orientation