On the "soundPlayer.play()" line below I get an error:
Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value.
However, this only happens when pressing the play button on a real device.
Also please ignore that I named my button "plat" button instead of play button, hah.
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate, AVAudioRecorderDelegate, AVAudioPlayerDelegate {
@IBOutlet weak var recordBTN: UIButton!
@IBOutlet weak var platBTN: UIButton!
var soundRecorder : AVAudioRecorder!
var soundPlayer : AVAudioPlayer!
var fileName: String = "audioFile.m4a"
var player: AVAudioPlayer!
var bannerView: GADBannerView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
bannerView = GADBannerView(adSize: kGADAdSizeBanner)
addBannerViewToView(bannerView)
bannerView.adUnitID = "ca-app-pub-3940256099942544/2934735716"
//ca-app-pub-9351248624194777/2551009478 real
bannerView.rootViewController = self
bannerView.load(GADRequest())
setupRecorder()
platBTN.isEnabled = false
}
func getDocumentsDirectory() -> URL {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
return paths[0]
}
func setupRecorder() {
let audioFilename = getDocumentsDirectory().appendingPathComponent(fileName)
let recordSetting = [ AVFormatIDKey : kAudioFormatAppleLossless,
AVEncoderAudioQualityKey : AVAudioQuality.max.rawValue,
AVEncoderBitRateKey : 320000,
AVNumberOfChannelsKey : 2,
AVSampleRateKey : 44100.2] as [String : Any]
do {
soundRecorder = try AVAudioRecorder(url: audioFilename, settings: recordSetting )
soundRecorder.delegate = self
soundRecorder.prepareToRecord()
} catch {
print(error)
}
}
func setupPlayer() {
let audioFilename = getDocumentsDirectory().appendingPathComponent(fileName)
do {
soundPlayer = try AVAudioPlayer(contentsOf: audioFilename)
soundPlayer.delegate = self
soundPlayer.prepareToPlay()
soundPlayer.volume = 1.0
} catch {
print(error)
}
}
func audioRecorderDidFinishRecording(_ recorder: AVAudioRecorder, successfully flag: Bool) {
platBTN.isEnabled = true
}
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
recordBTN.isEnabled = true
platBTN.setTitle("Play", for: .normal)
}
@IBAction func recordAct(_ sender: UIButton) {
if recordBTN.titleLabel?.text == "Record" {
soundRecorder.record()
recordBTN.setTitle("Stop", for: .normal)
platBTN.isEnabled = false
} else {
soundRecorder.stop()
recordBTN.setTitle("Record", for: .normal)
platBTN.isEnabled = false
}
}
@IBAction func playAct(_ sender: UIButton) {
if platBTN.titleLabel?.text == "Play" {
platBTN.setTitle("Stop", for: .normal)
recordBTN.isEnabled = false
setupPlayer()
soundPlayer.play() //Thread 1: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value
} else {
soundPlayer.stop()
platBTN.setTitle("Play", for: .normal)
recordBTN.isEnabled = false
}
}
@IBAction func playBtnPressed(_ sender: UIButton) {
playSound(soundName: "4chordsong3") //
}
@IBAction func pausePressed(_ sender: UIButton) {
if player?.play() != nil{
player.pause()
}
}
When I press the "play" button, the program immediately crashes and I get the error shown above. Is there any way I can fix this?
