I have an app being used by people to receive orders with it needing to make a continuous sound until staff attend to it. It was working for two months then just started crashing a lot. For whatever reason, it runs fine on an iPad but not on iPhones running a recent operating system.
When this bit of code gets called it crashes:
guard let path = Bundle.main.path(forResource: "alert.mp3", ofType: nil) else { return }
let url = URL(fileURLWithPath: path)
do {
self.alertSoundEffect = try AVAudioPlayer(contentsOf: url)
} catch let err {
print("err: \(err)")
}
DispatchQueue.main.async {
self.alertSoundEffect.numberOfLoops = -1
self.alertSoundEffect.prepareToPlay()
self.alertSoundEffect.play()
}
The fix online to declare the alertSoundEffect variable like this:
private var alertSoundEffect : AVAudioPlayer!
has not worked at all.
I tried moving everything but the line:
self.alertSoundEffect.play()
to viewDidLoad as I thought maybe that code couldn't get called more than once, but it didn't help.
Specifically, the compiler highlights this line when it crashes:
self.alertSoundEffect = try AVAudioPlayer(contentsOf: url)
I tried using try AVAudioPlayer where it takes a Data object as a parameter or with including the type of audio file to be played, but that did not change anything.
When I try the AVAudioPlayer's delegate and declare it like this:
self.alertSoundEffect.delegate = self
right before the first lines of code I shared above Xcode highlights this line instead when it reliably crashes.
What else should I try?
