UISplitViewController and launch storyboard

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Created Jun ’15

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Greetings,

I have an iOS 8 Swift-based app using a UISplitViewController as its root view controller. My project's deployment setting is iOS 8.0 and I had to use launch images (and not a launch storyboard) because launch storyboards did not support containers such as UINavigationController, UISplitViewController and UITabBarController (this is quoted from a DTS response I got).

In comes iOS 9 with its iPad multitasking feature, which requires using launch storyboards. Things seem to work (on iOS 9) if I specify my main storyboard as a launch storyboard but iOS 8 displays a black screen during launch. Strangely, if I check the "Use as launch screen" checkbox for the main storyboard, the compiler spits out an error ("Launch screens may not have connections"). Using a XIB file (with a UISplitViewController within) as a launch file seems to "kind of" work on both iOS 8 and iOS 9 but I can't seem to be able to modify the UISplitViewController in IB.

This is quite puzzling as there is no way to have the system use launch images for iOS 8 and a launch storyboard for iOS 9. I'm attending WWDC 15 right now and this seemed to stump the engineers at the lab. I can't believe I'm the only one who ran across such an issue, especially with a UISplitViewController, which we're encouraged to use...

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Answer 1

Jordan OP

Jun ’15

I'm sure there's a ton of us in the same boat. You can't even get it looking right when you use a simple navigation controller for your first screen. Also note Apple's apps launch images in iOS 9 don't match what it looks like when the UI actually loads - their nav bar on the launch screen is smaller in height than it needs to be, so they're running into the exact same issues as us I'm sure.

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Answer 2

bbousquet OP

Jul ’15

Accepted Answer

Great news! One of the engineers I spoke to at WWDC followed up on this issue and got back to me recently: this is fixed in Xcode 7 beta 4!

I tested it by dropping a stock split view controller into the launch storyboard file. It builds without warnings and works as expected on the iOS 9 simulator and on my iOS 8.4 device.

Cheers!

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