在Windows 8中挂起时，背景音频停止

Question

我有一个应用程序将播放用HTML / JS for Windows 8编写的互联网mp3流。

即使应用程序在后台，我希望它继续播放音频，但是，它仍然不起作用。

我试过以下

• 将msAudioCategory =“BackgroundCapableMedia”添加到我的音频标签
• 在声明中添加了音频作为后台任务
• 我已将playpausetogglepressed，playpressed，stoppressed和pausepressed eventlisteners添加到mediacontrols

    mediaControl = Windows.Media.MediaControl;

    // Add event listeners for PBM notifications to illustrate app is
    // getting a new SoundLevel and pass the audio tag along to the function

    mediaControl.addEventListener("soundlevelchanged", $scope.soundLevelChanged, false);

    // Add event listeners for the mandatory media commands.
    // These are necessary to play streams of type 'backgroundCapableMedia'
    mediaControl.addEventListener("playpausetogglepressed", $scope.playpause, false);
    mediaControl.addEventListener("playpressed", $scope.play, false);
    mediaControl.addEventListener("stoppressed", $scope.stop, false);
    mediaControl.addEventListener("pausepressed", $scope.pause, false);

我似乎无法弄清楚我错过了什么。