SwiftUI强制除一个视图外的所有肖像 [英] SwiftUI Force Portrait On All Except One View

问题描述

我有一个SwiftUI项目.对于除其中一种视图外的所有视图，我想允许使用肖像模式，并且只允许使用肖像模式.对于仅一种视图，我想同时允许纵向和横向. Swift上有一些资源，但是我在SwiftUI上找不到任何资源.

I have a SwiftUI project. For all but one of the views, I want to allow portrait and only portrait mode. For only one view, I want to allow both portrait and landscape. There are some resources on Swift but I couldn't find any on SwiftUI.

有人找到实现这一目标的方法吗?

Did anyone find a way to accomplish this?

推荐答案

我必须做类似的事情.这是我们的方法.

I had to do something similar to this. Here's our approach.

我们将项目方向设置为仅支持纵向模式.

We set the project orientation to only support Portrait mode.

然后在AppDelegate中添加一个用于定向的实例变量，并符合supportedInterfaceOrientationsFor委托方法.

Then in your AppDelegate add an instance variable for orientation and conform to the supportedInterfaceOrientationsFor delegate method.

static var orientationLock = UIInterfaceOrientationMask.portrait

func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
    return AppDelegate.orientationLock
}

然后，当您要呈现风景视图时，请执行以下操作:

Then when your about to present your landscape view perform the following actions:

AppDelegate.orientationLock = UIInterfaceOrientationMask.landscapeLeft
UIDevice.current.setValue(UIInterfaceOrientation.landscapeLeft, forKey: "orientation")
UINavigationController.attemptRotationToDeviceOrientation()

解雇后，

AppDelegate.orientationLock = UIInterfaceOrientationMask.portrait
UIDevice.current.setValue(UIInterfaceOrientation.portrait, forKey: "orientation")
UINavigationController.attemptRotationToDeviceOrientation()

希望这会有所帮助！

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