如果已经在玩就停止

Question

我需要一些帮助来实现 .playing() 方法，因为当我的 playSound 函数被调用时，我想停止当前正在播放的任何东西，并播放新请求的声音，这是我的例子，它没有停止每个调用时间：

  function playSound(audio) {
      var playing;
      var sound = new Howl({
        src: ['assets/sound/voice/' + audio],
        autoplay: false,
        volume: 0.9,
        onplay: function() {
          playing = true;
        },
        onend: function() {
          playing = false;
        }          
      });

      if(playing) {
        sound.stop();
      } else {            
        sound.play();      
      }
  }

Answer 1

最终的解决方案是为 "sound" 创建一个全局变量：

var sound = null;
function playSound(audio) {
    //check if sound is null, if not stop previous sound and unload it
    if (sound != null) {
        sound.stop();
        sound.unload();
        sound = null;
    }
    sound = new Howl({
        src: ['assets/sound/voice/' + audio]
    });
    sound.play();
}

如果已经在玩就停止

Stop if already playing

howler.js