AVQueuePlayer is pausing but play icon won't disappear - mpmusicplayercontroller

Question

I'm building an application that uses an AVQueuePlayer to stream audio. I have my AVAudioSession set up with the category AVAudioSessionCategoryPlayback and I'm able to receive events from remoteControlReceivedWithEvent:. However, when I pause my audio session, the icon in the status bar does not disappear, nor does the pause/play button in the App Switcher change to play. The audio pauses, but the icons never change. Do you know why this might be happening?
I also use an MPMusicPlayerController to play music from the iPod music player. Both players are always initialized, however only one plays at a time. When the app opens, if I play something from the MPMusicPlayerController first, the AVQueuePlayer doesn't have this pause conflict anymore. It only has this problem when you play from the AVQueuePlayer first. I included the code to show you what I'm doing.
FYI- My MPMusicController is self.musicPlayer. My AVQueuePlayer is self.radioPlayer. After pausing, the status of my AVQueuePlayer is AVPlayerStatusReadyToPlay.
- (void)viewDidLoad {
[super viewDidLoad];
self.musicPlayer = [MPMusicPlayerController iPodMusicPlayer];
self.musicPlayer.nowPlayingItem = self.currentSong;
self.musicPlayer.shuffleMode = MPMusicShuffleModeSongs;
self.musicPlayer.repeatMode = MPMusicRepeatModeAll;
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback withOptions:nil error:nil];
[[AVAudioSession sharedInstance] setActive:YES error:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(radioItemDidReachEnd:) name:AVPlayerItemDidPlayToEndTimeNotification object:[_radioPlayer currentItem]];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[self becomeFirstResponder];
}
- (void)viewWillDisappear:(BOOL)animated
{
[self resignFirstResponder];
if (self.source == LIBRARY)
{
[self.parentDelgate reloadInformation];
}
}
- (void)viewDidAppear:(BOOL)animated
{
if (self.source == RADIO)
{
// Code that sets the URLs for the AVQueuePlayer
[self initializeMusicPlayer];
[self prepareRadioPlayer];
}
else if ( self.source == LIBRARY ) {
if ( self.currentSong != self.musicPlayer.nowPlayingItem || self.playlist != nil)
{
[self initializeMusicPlayer];
self.musicPlayer.nowPlayingItem = self.currentSong;
}
}
}
- (void)initializeMusicPlayer {
if ( self.source == LIBRARY )
{
[self.musicPlayer setQueueWithItemCollection:[MPMediaItemCollection collectionWithItems:(NSArray *)self.tracks]];
if ([self.radioPlayer rate] != 0.0)
[self.radioPlayer pause];
[self.musicPlayer play];
self.status = PLAYING;
}
else if ( self.source == RADIO )
{
if ( self.musicPlayer.playbackState == MPMusicPlaybackStatePlaying )
[self.musicPlayer pause];
}
}
- (IBAction)pausePressed:(UIButton *)sender {
if ( self.source == LIBRARY )
{
[self.musicPlayer pause];
}
else if (self.source == RADIO)
{
[self.radioPlayer pause];
}
[self onStatePaused];
}
- (void)onStatePaused {
// UI Stuff
}
- (void)endSession {
[self.musicPlayer stop];
[self.radioPlayer pause];
[self.radioPlayer removeAllItems];
// Present different view
}
Any ideas?

Answer 1

I figured out the problem. I was adding multiple instances of observers to the AVQueuePlayer/AVPlayerItems which was interfering with this.