App crashes with AVAudioSession privateBeginInterruption

I’m testing my app on device (a soundboard) and it crashes with a EXC_BAD_ACCESS, I have use Breakpoints and the error came from [AVAudioSession privateBeginInterruption]

The crash happens following this pattern:

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    1. The app is launched, we see the main menu
    2. A main menu button is pressed and a soundboard view is loaded (push), some buttons are pressed here and sounds are played.
    3. Return to main menu ([self.navigationController popViewControllerAnimated:YES];)
    4. App enters background
    5. When app enters foreground and the menu button of the soundboard is pressed the app crashes.

    I have no idea what is happening here, I have installed CrashLytics and it only said:

    app crash

    Maybe the audio session gets released from memory and the app tries to access to it and fail?

    The audio session is initialised in viewDidLoad

    //  Initialize audio session
    [[AVAudioSession sharedInstance] setDelegate: self];
    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error: nil];
    UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
    AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,sizeof    (audioRouteOverride),&audioRouteOverride);  

    In viewDidUnload I have

    [[AVAudioSession sharedInstance] setDelegate: nil];

    Any hints?


    Solutions Collect From Internet About “App crashes with AVAudioSession privateBeginInterruption”

    The crash happens because you had set the delegate of session to your controller in this line

    [[AVAudioSession sharedInstance] setDelegate: self];

    but didn’t implemented the required delegate method (interruption one)

    either remove the delegate setting line or implement the delegate method to solve crash