ios - 快速播放和停止音乐

Question

就像在iTunes中一样，如何用单个按钮播放音乐并停止播放。当按下按钮并再次按下相同的按钮时，应该会停止播放音乐。

  var audioplayer = AVaudioPlayer
 @IBAction func play(_ sender: Any) {

    do
    {

        audioPlayer = try AVAudioPlayer (contentsOf: URL.init(fileURLWithPath: Bundle.main.path(forResource: "bensound", ofType: "mp3")!))
        audioPlayer.prepareToPlay()
        audioPlayer.play()
        audioPlayer.stop()

    }
    catch {
        print ("error")

    }

}

Answer 1

显然，这是行不通的:

audioPlayer.prepareToPlay()
audioPlayer.play() // this will just start playing the music and immediately stop it.
audioPlayer.stop()

您需要一个if语句和一个指示音乐是否正在播放的变量。

幸运的是，我正在谈论的变量已经存在!您甚至不需要自己声明它!它是 isPlaying ，在 AVAudioPlayer中定义。

我们只需要编写if语句。很简单

If the music is playing, stop it, otherwise, start it

if audioplayer.isPlaying {
    audioplayer.play()
} else {
    audioplayer.stop()
}