In my app all screens have portrait orientation. How to allow only single UIViewController be in two orientation mode: portrait and upside down? When user rotates an iPhone, the UIViewController should rotates too.
2 Answers
First of all, In your application all screens except one screen are in portrait orientation. So You cannot set orientation of your application as portrait. So Set Device Orientation as portrait and LandScape both.
Put following code on which screen you need landscape orientation in ViewDidLoad
let value = UIInterfaceOrientation.landscapeLeft.rawValue
UIDevice.current.setValue(value, forKey: "orientation")
and
override var shouldAutorotate: Bool {
return true
}
Put following code on all screens where you need only portrait orientation in viewDidLoad
let value = UIInterfaceOrientation.portrait.rawValue
UIDevice.current.setValue(value, forKey: "orientation")
1 Comment
Stanislav Putilov
Thank you for your answer. But I don't neet landscape mode, only portrait and upside down in one UIViewController
If you have any function that continuously called then you can check the device orientation inside this function as-
if UIDevice.current.orientation == UIDeviceOrientation.portraitUpsideDown {
// set your view constraints
}
if UIDevice.current.orientation == UIDeviceOrientation.portrait {
// set your view constraints
}
Otherwise you should create a monitoring function and check device orientation inside the function.
3 Comments
Stanislav Putilov
I need such logic: when user takes an iPhone in portrait orientation, UIViewController looks in portrait orientation, if user takes in upside down orientation, the same UIViewController looks in upside down orientation
Imran0001
Yes, I got it. When you get the upsideDown orientation you should change your view constraints. I mean new design for your view.
Imran0001
And at first, set your project device orientation only portrait. After this, your view will not change for landscape mode.