Background music not working, but no errors? - xcode

Question

Please solve my question, why is the background music not working? This is my code, hope someone can solve it.
// Just to format it..
#IBOutlet var UsernameTextField: UITextField!
#IBOutlet var PasswordTextField: UITextField!
#IBOutlet var EmailTextField: UITextField!
#IBAction func LogIn(sender: AnyObject) {
}
func Login(){
var user = PFUser()
user.username = UsernameTextField.text!
user.password = PasswordTextField.text!
PFUser.logInWithUsernameInBackground(UsernameTextField.text, password: PasswordTextField.text, block: {
(User : PFUser?, Error : NSError?) -> Void in
if Error == nil{
dispatch_sync(dispatch_get_main_queue()){
var Storyboard = UIStoryboard(name: "Main", bundle: nil)
var MainVC : UIViewController = Storyboard.instantiateViewControllerWithIdentifier("MainVC") as! UIViewController
self.presentViewController(MainVC, animated: true, completion: nil)
}
}
else{
NSLog("Sorry, you've typed either username or password wrongly.")
}
})
}
#IBAction func signUpButton(sender: AnyObject) {
signUp() // Calling signUp function here that is declared below.
}
func signUp(){
// Do sign up stuff.
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
playBackgroundMusic("IntroMusic")
backgroundMusicPlayer.play()
let soundFilePath = NSBundle.mainBundle().pathForResource("Background", ofType: "mp3")
let soundFileURL = NSURL(fileURLWithPath: soundFilePath!)
let player = AVAudioPlayer(contentsOfURL: soundFileURL, error: nil)
player.numberOfLoops = -1 //infinite
player.play()
func signUp(){
var user = PFUser()
user.username = UsernameTextField.text!
user.password = PasswordTextField.text!
user.email = EmailTextField.text!
}
let user = PFUser()
user.username = "Name:"
user.password = "Pass:"
user.email = "Email:"
user.signUpInBackgroundWithBlock { (success: Bool, error: NSError?) -> Void in
if error == nil {
// Hooray! Let them use the app now.
} else {
// Examine the error object and inform the user.
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
var backgroundMusicPlayer: AVAudioPlayer!
func playBackgroundMusic(filename: String) {
//The location of the file and its type
let url = NSBundle.mainBundle().URLForResource("Background", withExtension: "mp3")
//Returns an error if it can't find the file name
if (url == nil) {
println("Could not find the file \(filename)")
}
var error: NSError? = nil
//Assigns the actual music to the music player
backgroundMusicPlayer = AVAudioPlayer(contentsOfURL: url, error: &error)
//Error if it failed to create the music player
if backgroundMusicPlayer == nil {
println("Could not create audio player: \(error!)")
return
}
//A negative means it loops forever
backgroundMusicPlayer.numberOfLoops = -1
backgroundMusicPlayer.prepareToPlay()
backgroundMusicPlayer.play()
}

Answer 1

As Leo Dabus suggested declare your player instance outside of viewDidLoad method and your code will be:
var player : AVAudioPlayer!
override func viewDidLoad() {
super.viewDidLoad()
let soundFilePath = NSBundle.mainBundle().pathForResource("Background", ofType: "mp3")
let soundFileURL = NSURL(fileURLWithPath: soundFilePath!)
player = AVAudioPlayer(contentsOfURL: soundFileURL, error: nil)
player.numberOfLoops = -1 //infinite
player.play()
}