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iOS CoreMIDI background processing
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iOS CoreMIDI background processing

  • Subject: iOS CoreMIDI background processing
  • From: Matt Grippaldi <email@hidden>
  • Date: Wed, 04 Jan 2017 10:47:41 -0500
I have an iOS MIDI monitoring application that I would like to run in the background if the user chooses that option.
I have created a virtual destination and added “Required Background Modes->audio” to the application.
The app runs and the virtual destination shows up in other apps when in background mode but the destinations callback never gets called.

applicationWillResignActive and applicationDidEnterBackground are both being called in the UIApplicationDelegate.

Do I need to play silence (which Apple frowns upon) when my app is in the background in order to keep MIDI processing active? 

Thanks,
Matt Grippaldi









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