UWPMusicPlayerExtensions

This library helps you create and use extensions for music players.
This repository also stores information about extensions, which use this library.

Example

Music player uses extension to get lyrics for currently playing song.

Music player code

Package.appxmanifest

<uap3:Extension Category="windows.appExtensionHost">
  <uap3:AppExtensionHost>
	<uap3:Name>uwp.music-player.lyrics</uap3:Name>
  </uap3:AppExtensionHost>
</uap3:Extension>

public async Task<LyricsResponse> GetLyrics(string album, string artist, string title, CancellationToken token)
{
	var helper = new ExtensionClientHelper(ExtensionTypes.Lyrics);
	var client = new LyricsExtensionsClient(helper);

	LyricsRequest request = new LyricsRequest()
	{
		Album = album,
		Artist = artist,
		Title = title,
		PreferSynchronized = false,
	};

	return await client.SendRequestAsync(request, extensions, token);
}

Extension code

Package.appxmanifest

<uap:Extension Category="windows.appService" EntryPoint="{BackgroundService.BackgroundLyricsService}">
  <uap:AppService Name="{com.mylyricsextension}" />
</uap:Extension>
<uap3:Extension Category="windows.appExtension">
  <uap3:AppExtension Name="uwp.music-player.lyrics" Id="{unique id}" Description="{description}" DisplayName="{displayname}" PublicFolder="{publicfolder}">
	<uap3:Properties>
	  <Service>{com.mylyricsextension}</Service>
	</uap3:Properties>
  </uap3:AppExtension>
</uap3:Extension>

Background task

private async void OnRequestReceived(AppServiceConnection sender, AppServiceRequestReceivedEventArgs args)
{
	var messageDeferral = args.GetDeferral();
	ValueSet message = args.Request.Message;
	MylyricsService service = new MylyricsService();
	ValueSet returnData = await service.GetLyrics(message);
	await args.Request.SendResponseAsync(returnData);
	messageDeferral.Complete();
}

public async Task<ValueSet> GetLyrics(ValueSet message)
{
	ValueSet response = new ValueSet();

	LyricsExtensionService service = new LyricsExtensionService();
	LyricsRequest request = service.GetRequest(message);
	LyricsResponse result = await SearchLyrics(request);
	response = service.PrepareResponse(result);

	return response;
}