Detect if app is running in Slide Over or Split View mode in iOS 9

Question

In iOS 9, is it possible to detect when an app is running in iOS 9's Slide Over or Split View mode?

I've tried reading through Apple's documentation on iOS 9 multitasking, but haven't had any luck with this…

I ask because I might have a feature in my app that I'd like to disable when the app is opened in a Slide Over.

Answer 1

Just check if your window occupies the whole screen:

BOOL isRunningInFullScreen = CGRectEqualToRect([UIApplication sharedApplication].delegate.window.frame, [UIApplication sharedApplication].delegate.window.screen.bounds);

If this is false, then you're running in a split view or a slide over.

Here is the code snipped which will automatically maintain this flag irrespective of rotation

-(void)traitCollectionDidChange:(UITraitCollection *)previousTraitCollection
{
 // simply create a property of 'BOOL' type
 isRunningInFullScreen = CGRectEqualToRect([UIApplication sharedApplication].delegate.window.frame, [UIApplication sharedApplication].delegate.window.screen.bounds);
}