iOS. Interface orientation on launch

Question

I have an app that supports both portrait and landscape.
So in Info.plist / Project Settings I specify both orientations.

In my UIViewController I override supportedInterfaceOrientations to return .landscape.

But when I launch my app it is first displayed in portrait mode (with wrecked layout), and then unpleasant animation rotates it to landscape (see video).

I also tried overriding application(_, supportedInterfaceOrientationsFor window) with the same result.

Sample project demonstrating the issue:
https://s3.amazonaws.com/glazba/OrientationTest.zip

Lobont Andrei · Accepted Answer · 2022-01-06 15:43:39Z

1

Adding UIInterfaceOrientation in Info.plist and setting it to landscape seems to do the trick.

answered Jan 6, 2022 at 15:43

Lobont Andrei

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2 Comments

Pavel Alexeev Over a year ago

Yes, it does, but it disables portrait orientation entirely, despite supportedInterfaceOrientations in UIViewController :(

Pavel Alexeev Over a year ago

I can set .landscape in .plist and return .all in UIApplicationDelegate, but it will result in the same weird animation when launching in portrait :(

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