Cannot use Split View or Slide Over with the app installed from AltStore

[kkebo]

Describe the bug UTM 1.0-rc5 supports Split View, but I can't use Split View when I installed from the AltStore.

To Reproduce Steps to reproduce the behavior:

1. Install UTM 1.0-rc5 from the AltStore, or update it from the previous version
2. Launch UTM
3. Try to use Split View to show UTM and another app side by side
   • expected behaviors
     • I can use Split View
   • actual behaviors
     • I can't use Split View

However, when I built from source, I can use Split View. So, the binary distributed via the AltStore may be something wrong.

My Environment

• iPadOS 13.5.5 Developer Beta 1
• AltStore 1.3.4b3
• macOS 10.15.4
• Xcode 11.5

[osy]

It appears to be a bug with AltStore. I dumped the app installed by AltStore and found that the Info.plist is missing the key UISupportedInterfaceOrientations~ipad even though the key exists in the unsigned IPA. iOS will automatically disable split view if it does not detect UISupportedInterfaceOrientations or UISupportedInterfaceOrientations~ipad supporting all 4 orientations. On iPhone we disable the upside-down orientation because of the notch.

[osy]

Fixed in AltStore