CODEWITHSUNDEEP
iosswiftavaudioplayeravaudiosession
InnisBrendan
InnisBrendan

Reputation: 2249

Crash on volume button press AVAudioPlayer

My app crashes when I tap either volume button. In my view controller, I am calling setActive on AVAudioSession.sharedInstance() and when the user taps a button I play a song with AVAudioPlayer. In this view controller, whenever a volume button is pressed, wether the player is playing or not, the app crashes with EXC_BAD_ACCESS. I have seen an error message in the debugger occasionally complaining about key-value observing for outputVolume.

Any ideas why my app is crashing?

A CLUE: There are two ways I can get to the view controller that is causing the crash. One way causes the crash and the other does not. Either way I am pushing the view controller on to the navigation controller in the same way.

Upvotes: 2

Views: 526

Answers (1)

Farid Al Haddad
Farid Al Haddad

Reputation: 833

Have you added something similar? :

let audioSession = AVAudioSession.sharedInstance()
    audioSession.addObserver(self, forKeyPath: "outputVolume",
                             options: NSKeyValueObservingOptions.new, context: nil)

if you did, then you need to override this method and do whatever you need in it : 

override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
    if keyPath == "outputVolume"{

    }
}

Upvotes: 2

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