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)]

来源：https://stackoverflow.com/questions/43428807/add-action-to-apple-tv-remote-play-pause-button