Swift: Make an error handler of AVAudioPlayer - ios

Question

I am using AVAudioPlayer for my app, and when the view controller loads the audio plays automatically as the view loads but how do I make a statement if the audio cannot find that file and when it can't find the file I want an alert message to pop up saying the audio cannot be found.
Code:
var euphoriaAudio = try! AVAudioPlayer(contentsOfURL:
NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("Euphoria", ofType: "mp3")!))
Note: This variable declaration is not in any function. It is outside sitting alone in the class which works perfectly fine.

Answer 1

Should do everything you described.
class EuphoriaViewController: UIViewController {
var player: AVAudioPlayer?
private func showAlert(message: String) {
let alert = UIAlertController(title: "Warning",
message: message,
preferredStyle: .Alert)
let ok = UIAlertAction(title: "OK", style: .Default) { action in
// Execute some code upon OK tap here if you'd like
}
alert.addAction(ok)
presentViewController(alert, animated: true, completion: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
guard let fileURL = NSBundle.mainBundle().URLForResource("Euphoria",withExtension: "mp3") else {
showAlert("Can't find Euphoria.mp3 resource")
return
}
do {
player = try AVAudioPlayer(contentsOfURL: fileURL)
player?.prepareToPlay()
}
catch {
showAlert("Can't load Euphoria.mp3 resource")
}
}
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
player?.play()
}
}
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