CODEWITHSUNDEEP
iosswiftavfoundationavaudioplayer
Zhou Haibo
Zhou Haibo

Reputation: 2068

audioPlayerDidFinishPlaying is not triggered

There is quit of similar OPs per googles but I didn't fix my issue by following them. It seems I'm closed but still cannot figure out where is wrong, appreciate any hint here.

My AudioPlayer is put in a separate file as Singleton pattern

class AudioPlayer {
    // Singleton to keep audio continue to play when switching viewControllers
    static let shared = AudioPlayer()
    var player: AVAudioPlayer?
    
    private init() {}
    
    func play(url: URL) {
        do {
            player = try AVAudioPlayer(contentsOf: url)
            guard let player = player else { return }
            player.prepareToPlay()
            player.play()
        } catch {
            print(error)
        }
    }
}

Then in PlayerViewController as the playing scene. I put player.delegate = self. And put delegate method in below. I debug and found audioPlayerDidFinishPlaying is not get called.

class PlayerViewController: UIViewController, AVAudioPlayerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        AudioPlayer.shared.player?.delegate = self
    }

    func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
        if flag {
            print("EAT")
            goNextTrack()
        } else {
            fatalError("the audio doesn't finished playing successfully.")
        }
    }
}

Upvotes: 1

Views: 538

Answers (1)

Shehata Gamal
Shehata Gamal

Reputation: 100503

May be this before you call play it as

AudioPlayer.shared.player?.delegate = self // here player is nil and delegate won't work 
AudioPlayer.shared.play(url:////)

is not same as

AudioPlayer.shared.play(url:////)  
AudioPlayer.shared.player?.delegate = self  // here player has a value  and delegate will work

Upvotes: 3

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