Setting device orientation in Swift iOS

Asked 3/9, 2014 at 19:11 Answered 5/6, 2018 at 12:35

I am working on a swift app for iPhone. There is a modal view in my application that I want only to be in portrait view.

My question is, how do I programmatically force the phone to not allow rotation? In other words, I am looking for code that will not allow a modal view to be displayed in landscape mode (turning on portrait rotation lock).

This is just for 1 modal view, so I can't turn off rotation for the entire app, otherwise I would just disable rotation altogether.

I found code in my research here But it is in objective C, in case that helps. Thanks!

Crampon answered 3/9, 2014 at 19:11 Comment(1)

This is an answer that resolve your problem and others related: #37984346 – Rentschler 27/3, 2017 at 19:12

You can paste these methods in the ViewController of each view that needs to be portrait:

override func shouldAutorotate() -> Bool {
    return false
}

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.Portrait
}

Weaponless answered 3/9, 2014 at 20:54 Comment(11)

This code doesn't work if the device is in landscape mode when the modal view is called. In those circumstances, the modal view is displayed in landscape mode, and can not be rotated out. What shoud I do? Thanks for the answer, though, and I'll accept it if we can get this sorted out. – Crampon 6/9, 2014 at 17:40

That what I thought the latter method of the two above did. I'll look for more ways to accomplish this, but I can't test it because I've been haing trouble running iOS simulator and I am not part of the iOS developer program. – Weaponless 7/9, 2014 at 13:37

Edited to cast UIInterfaceOrientation to Int. It's a UInt value and the current version of Swift now requires the cast. – Gaziantep 6/2, 2015 at 0:2

This shows how to default load landscape. #27038339 – Sheikh 12/2, 2015 at 15:3

And I don't believe this works if you have a VC within a Navigation controller, if you only want it to apply to one VC and not all. – Sheikh 12/2, 2015 at 15:5

@user1021430 - someone came in after me and changed it to .rawValue. – Gaziantep 11/5, 2015 at 2:26

Thanks. This answer is incorrect, then. It will not compile. DaRk-_-D0G's answer below has the correct call to both .rawValue AND casting it to Int. – Sanbenito 12/5, 2015 at 0:54

Should be using UIInterfaceOrientationMask instead of UIInterfaceOrientation – Persnickety 22/5, 2015 at 10:10

you should return true from shouldAutorotate(). – Sharlasharleen 5/5, 2016 at 23:17

anyone knows how to apply landscape orientation to only view controller, rest all view should be in portrait orientation, when working with navigation controller? – Ngo 5/7, 2017 at 14:29

Does not work in Swift 3. Also, in Swift 3 shouldAutorotate and supportedInterfaceOrientations are no longer functions but variables instead. – Littlest 19/9, 2017 at 10:32

for LandscapeLeft and LandscapeRight (Update Swift 2.0)

enter image description here And you have this in info

enter image description here

And UIController

override func shouldAutorotate() -> Bool {
    return true
}

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return [UIInterfaceOrientationMask.LandscapeLeft,UIInterfaceOrientationMask.LandscapeRight]
}

For PortraitUpsideDown and Portrait use that enter image description here

override func shouldAutorotate() -> Bool {
    if (UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeLeft ||
        UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeRight ||
        UIDevice.currentDevice().orientation == UIDeviceOrientation.Unknown) {
            return false
    }
    else {
        return true
    }
}

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return [UIInterfaceOrientationMask.Portrait ,UIInterfaceOrientationMask.PortraitUpsideDown]
}

Other solution:

extension UINavigationController {
    public override func shouldAutorotate() -> Bool {
        if visibleViewController is MyViewController {
            return true   // rotation
        } else {
            return false  // no rotation
        }
    }
    
    public override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
        return (visibleViewController?.supportedInterfaceOrientations())!
    }
}

Newsprint answered 24/12, 2014 at 23:52 Comment(3)

Nice find for iPad orientation in the info – Invective 17/2, 2016 at 14:34

@dark-_-d0g in the last one should it not be true in the first statement and false in the second? maybe a cut and paste typo... – Risky 6/3, 2016 at 0:37

I think for Portrait view and case of UIDeviceOrientation.Unknown shouldRotate() should return true. In my tests if the iPad is in Landscape mode when the app is started, the app stays in this mode. – Discommodity 26/7, 2016 at 11:39

You can paste these methods in the ViewController of each view that needs to be portrait:

override func shouldAutorotate() -> Bool {
    return false
}

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.Portrait
}