public override BrowserRoot OnGetRoot(string clientPackageName, int clientUid, Bundle rootHints)
{
LogHelper.Debug(Tag, "OnGetRoot: clientPackageName=" + clientPackageName,
"; clientUid=" + clientUid + " ; rootHints=", rootHints);
if (!packageValidator.IsCallerAllowed(this, clientPackageName, clientUid))
{
LogHelper.Warn(Tag, "OnGetRoot: IGNORING request from untrusted package "
+ clientPackageName);
return(null);
}
if (CarHelper.IsValidCarPackage(clientPackageName))
{
// Optional: if your app needs to adapt ads, music library or anything else that
// needs to run differently when connected to the car, this is where you should handle
// it.
}
return(new BrowserRoot(MediaIDHelper.MediaIdRoot, null));
}
public override void OnCreate()
{
base.OnCreate();
LogHelper.Debug(Tag, "onCreate");
playingQueue = new List <MediaSession.QueueItem> ();
musicProvider = new MusicProvider();
packageValidator = new PackageValidator(this);
session = new MediaSession(this, "MusicService");
SessionToken = session.SessionToken;
var mediaCallback = new MediaSessionCallback();
mediaCallback.OnPlayImpl = () => {
LogHelper.Debug(Tag, "play");
if (playingQueue == null || playingQueue.Count != 0)
{
playingQueue = new List <MediaSession.QueueItem> (QueueHelper.GetRandomQueue(musicProvider));
session.SetQueue(playingQueue);
session.SetQueueTitle(GetString(Resource.String.random_queue_title));
currentIndexOnQueue = 0;
}
if (playingQueue != null && playingQueue.Count != 0)
{
HandlePlayRequest();
}
};
mediaCallback.OnSkipToQueueItemImpl = (id) => {
LogHelper.Debug(Tag, "OnSkipToQueueItem:" + id);
if (playingQueue != null && playingQueue.Count != 0)
{
currentIndexOnQueue = QueueHelper.GetMusicIndexOnQueue(playingQueue, id);
HandlePlayRequest();
}
};
mediaCallback.OnSeekToImpl = (pos) => {
LogHelper.Debug(Tag, "onSeekTo:", pos);
playback.SeekTo((int)pos);
};
mediaCallback.OnPlayFromMediaIdImpl = (mediaId, extras) => {
LogHelper.Debug(Tag, "playFromMediaId mediaId:", mediaId, " extras=", extras);
playingQueue = QueueHelper.GetPlayingQueue(mediaId, musicProvider);
session.SetQueue(playingQueue);
var queueTitle = GetString(Resource.String.browse_musics_by_genre_subtitle,
MediaIDHelper.ExtractBrowseCategoryValueFromMediaID(mediaId));
session.SetQueueTitle(queueTitle);
if (playingQueue != null && playingQueue.Count != 0)
{
currentIndexOnQueue = QueueHelper.GetMusicIndexOnQueue(playingQueue, mediaId);
if (currentIndexOnQueue < 0)
{
LogHelper.Error(Tag, "playFromMediaId: media ID ", mediaId,
" could not be found on queue. Ignoring.");
}
else
{
HandlePlayRequest();
}
}
};
mediaCallback.OnPauseImpl = () => {
LogHelper.Debug(Tag, "pause. current state=" + playback.State);
HandlePauseRequest();
};
mediaCallback.OnStopImpl = () => {
LogHelper.Debug(Tag, "stop. current state=" + playback.State);
HandleStopRequest(null);
};
mediaCallback.OnSkipToNextImpl = () => {
LogHelper.Debug(Tag, "skipToNext");
currentIndexOnQueue++;
if (playingQueue != null && currentIndexOnQueue >= playingQueue.Count)
{
currentIndexOnQueue = 0;
}
if (QueueHelper.isIndexPlayable(currentIndexOnQueue, playingQueue))
{
HandlePlayRequest();
}
else
{
LogHelper.Error(Tag, "skipToNext: cannot skip to next. next Index=" +
currentIndexOnQueue + " queue length=" +
(playingQueue == null ? "null" : playingQueue.Count.ToString()));
HandleStopRequest("Cannot skip");
}
};
mediaCallback.OnSkipToPreviousImpl = () => {
LogHelper.Debug(Tag, "skipToPrevious");
currentIndexOnQueue--;
if (playingQueue != null && currentIndexOnQueue < 0)
{
currentIndexOnQueue = 0;
}
if (QueueHelper.isIndexPlayable(currentIndexOnQueue, playingQueue))
{
HandlePlayRequest();
}
else
{
LogHelper.Error(Tag, "skipToPrevious: cannot skip to previous. previous Index=" +
currentIndexOnQueue + " queue length=" +
(playingQueue == null ? "null" : playingQueue.Count.ToString()));
HandleStopRequest("Cannot skip");
}
};
mediaCallback.OnCustomActionImpl = (action, extras) => {
if (CustomActionThumbsUp == action)
{
LogHelper.Info(Tag, "onCustomAction: favorite for current track");
var track = GetCurrentPlayingMusic();
if (track != null)
{
var musicId = track.GetString(MediaMetadata.MetadataKeyMediaId);
musicProvider.SetFavorite(musicId, !musicProvider.IsFavorite(musicId));
}
UpdatePlaybackState(null);
}
else
{
LogHelper.Error(Tag, "Unsupported action: ", action);
}
};
mediaCallback.OnPlayFromSearchImpl = (query, extras) => {
LogHelper.Debug(Tag, "playFromSearch query=", query);
if (string.IsNullOrEmpty(query))
{
playingQueue = new List <MediaSession.QueueItem> (QueueHelper.GetRandomQueue(musicProvider));
}
else
{
playingQueue = new List <MediaSession.QueueItem> (QueueHelper.GetPlayingQueueFromSearch(query, musicProvider));
}
LogHelper.Debug(Tag, "playFromSearch playqueue.length=" + playingQueue.Count);
session.SetQueue(playingQueue);
if (playingQueue != null && playingQueue.Count != 0)
{
currentIndexOnQueue = 0;
HandlePlayRequest();
}
else
{
HandleStopRequest(GetString(Resource.String.no_search_results));
}
};
session.SetCallback(mediaCallback);
session.SetFlags(MediaSessionFlags.HandlesMediaButtons |
MediaSessionFlags.HandlesTransportControls);
playback = new Playback(this, musicProvider);
playback.State = PlaybackStateCode.None;
playback.Callback = this;
playback.Start();
var context = ApplicationContext;
var intent = new Intent(context, typeof(MusicPlayerActivity));
var pi = PendingIntent.GetActivity(context, 99 /*request code*/,
intent, PendingIntentFlags.UpdateCurrent);
session.SetSessionActivity(pi);
var extraBundle = new Bundle();
CarHelper.SetSlotReservationFlags(extraBundle, true, true, true);
session.SetExtras(extraBundle);
UpdatePlaybackState(null);
mediaNotificationManager = new MediaNotificationManager(this);
}