在wp8.1 rt中播放来自应用的通知音

Question

We have a requirement where we need to play notification tone inside app when message is received.

For this if a song is getting played in background and notification comes then behaviour should be:

1. Background song/audio should get paused.
2. Notification tone should get played.
3. Background song should get resumed from where it was paused.

But I went through following links to play audio file through app:

1) http://www.jayway.com/2014/04/24/windows-phone-8-1-for-developers-the-background-media-player/ This stops music in background.

2) http://blogs.msdn.com/b/johnkenn/archive/2013/12/31/supporting-background-audio-in-your-windows-8-1-app.aspx

3) https://msdn.microsoft.com/en-us/library/windows/apps/xaml/windows.media.systemmediatransportcontrols.aspx

But none of these served my purpose.

In wp8, we could do it in this way .

Any direction to achieve desired functionality?

Answer 1

If you are sending toast notifications to your users when they receive a message, include a custom sound in your notification payload by including the audio tag:

    <toast launch=\"$param\">
       <audio src=\"ms-appx:///Assets/Sounds/$sound.wav\"/>
       <visual>
           <binding template=\"ToastText02\">
               <text id=\"1\">$title</text>
               <text id=\"2\">$msg</text>
           </binding>
       </visual>
    </toast>

For the custom sound to work, you need to include the sound.wav in your project and you can specify the path. I am putting it in my Assets/Sounds/ folder, you can specify something else.

You can also try to send a toast with sound, from within you app when you receive a message:

var notificationContent = "...xml...";
var xmlDocument = new XmlDocument();
xmlDocument.LoadXml(notificationContent);
var toastNotification = new ToastNotification(xmlDocument);
toastNotification.SuppressPopup = true;
ToastNotificationManager.CreateToastNotifier().Show(toastNotification);

where notificationContent is of the same format as the above XML, just escaped.