Is it possible to opt your iPad app out of multitasking on iOS 9

Question

I have a large app that I will need some time to optimize for iOS9.

Edit: What I am worried about is all the UI getting squeezed together when the app window size i

Answer 1

To opt out of Slide Over and Split View, do so explicitly by adding the UIRequiresFullScreen key to your Xcode project’s Info.plist file and apply the Boolean value YES.

You can set above thing using General tab of Targets, Select Requires Full Screen check. Refer below image for the same

Note :

A user can disable Slide Over and Split View in Settings > General > Multitasking. If you think you’ve set up everything correctly and find that these features still don’t work, check this setting.

See Adopting Multitasking Enhancements on iPad - Slide Over and Split View Quick Start.