I have an iOS app that streams background audio using AVAudioSession. It is working correctly, but I am curious, is there any way to change the text on the lock screen audio controls? Right now it simply displays the name of my app, but I would like to change it to the name of the track.
Additionally, the multi-tasking bar has no text under the controls- is there a way to add the track name there, as the iPod app does?
iOS 5 now supports setting the track title as well as an album art image in both the lock screen and the remote playback controls (the controls you get when you double-click the home button and swipe right). Take a look at the
MPNowPlayingInfoCenter
class. Of course, to maximize compatibility, you'd want to test whether MPNowPlayingInfoCenter
is available, by doing something like:
if ([MPNowPlayingInfoCenter class]) {
/* we're on iOS 5, so set up the now playing center */
UIImage *albumArtImage = [UIImage imageNamed:@"HitchHikersGuide"];
albumArt = [[MPMediaItemArtwork alloc] initWithImage:albumArtImage];
NSDictionary *currentlyPlayingTrackInfo = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:@"Life, the Universe and Everything", [NSNumber numberWithInt:42], albumArt, nil] forKeys:[NSArray arrayWithObjects:MPMediaItemPropertyTitle, MPMediaItemPropertyPlaybackDuration, MPMediaItemPropertyArtwork, nil]];
[MPNowPlayingInfoCenter defaultCenter].nowPlayingInfo = currentlyPlayingTrackInfo;
}