Add Action To Apple TV Remote Play/Pause Button

问题:

I have an AVAudioPlayer in my app and I am adding a function where the user can press the Play/Pause button on the remote to Play/Pause the AVAudioPlayer. I have this code in my App Delegate:

func initializePlayButtonRecognition() {
    addPlayButtonRecognizer(#selector(AppDelegate.handlePlayButton(_:)))
}

func addPlayButtonRecognizer(_ selector: Selector) {
    let playButtonRecognizer = UITapGestureRecognizer(target: self, action:selector)
    playButtonRecognizer.allowedPressTypes = [NSNumber(value: UIPressType.playPause.rawValue as Int)]
    self.window?.addGestureRecognizer(playButtonRecognizer)
}

func handlePlayButton(_ sender: AnyObject) {
    if audioPlayer.isPlaying {
        audioPlayer.pause() {
        } else {
            audioPlayer.play()
        }
    }
}

The AVAudioPlayer's name is an audio player. I have that stated in the code, but the App Delegate does not have a reference to the AVAudioPlayer from the PlayerViewController. How do I do this?

回答1:

Your code looks correct. Just a missing detail that could explain why it does not work as expected... in tvOS, apart from setting allowedPressTypes it is also needed to define allowedTouchTypes as indirect:

playButtonRecognizer.allowedTouchTypes = [NSNumber(value: UITouchType.indirect.rawValue)]

回答2:

i've the same issues. I tried to use also solutions proposed by other users, but I still can't perceive the click of the button tv remote app / pause. I tried with this code but without result. i'm using xcode 10 and swift 5

 override func viewDidLoad() {
    super.viewDidLoad()

    let tapRecognizer = UITapGestureRecognizer(target: self, action: #selector(playPauseButtonPressed))
    tapRecognizer.allowedPressTypes = [NSNumber(value: UIPress.PressType.playPause.rawValue)];
    tapRecognizer.allowedTouchTypes = [NSNumber(value: UITouch.TouchType.indirect.rawValue)]
    view.addGestureRecognizer(tapRecognizer)

    UIApplication.shared.beginReceivingRemoteControlEvents()
}   

@objc func playPauseButtonPressed(_ sender: AnyObject) {
    print("PRESSED")
}

override func remoteControlReceived(with event: UIEvent?) {
    print("EVENT")
}

override func pressesEnded(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
    for press in presses {
        if(press.type == UIPress.PressType.playPause) {
            print("qui")
        } else {
            super.pressesEnded(presses, with: event)
            print("qua")
        }

    }
}