Detect when music player is being paused - ios

Question

I wonder if it's possible to detect when the the music in my "iPod" on the phone is being paused, not if it's paused or currently playing, just the moment when the music is being paused. I guess i should be using AVAudio?
Thanks!

Answer 1

MPMusicPlayerController has a method:
+(MPMusicPlayerController *)iPodMusicPlayer;
The iPod music player employs the iPod app on your behalf. On
instantiation, it takes on the current iPod app state and controls
that state as your app runs. Specifically, the shared state includes
the following:
Repeat mode (see “Repeat Modes”) Shuffle mode (see “Shuffle Modes”
Now-playing item (see nowPlayingItem) Playback state (see
playbackState) Other aspects of iPod state, such as the on-the-go
playlist, are not shared. Music that is playing continues to play when
your app moves to the background.
You can check its playbackState which may be:
enum {
MPMusicPlaybackStateStopped,
MPMusicPlaybackStatePlaying,
MPMusicPlaybackStatePaused,
MPMusicPlaybackStateInterrupted,
MPMusicPlaybackStateSeekingForward,
MPMusicPlaybackStateSeekingBackward
};
typedef NSInteger MPMusicPlaybackState;
You can also get notified if its playbackState change with the MPMusicPlayerControllerPlaybackStateDidChangeNotification.
#property (nonatomic, strong) MPMusicPlayerController *musicPlayer;
-(void)iPodMusicPlayer
{
musicPlayer = [MPMusicPlayerController iPodMusicPlayer];
switch ([musicPlayer playbackState])
{
case: MPMusicPlaybackStateStopped:
NSLog(#"iPod player is stopped)";
//Do something
break;
case: MPMusicPlaybackStatePaused:
NSLog(#"iPod player is paused");
//Do something
break;
case: MPMusicPlaybackStatePlaying:
NSLog(#"iPod player is playing");
//Do something
break;
//Etc.
default:
break;
}
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(musicPlayerPlayBackStatusChanged:)
name:MPMusicPlayerControllerPlaybackStateDidChangeNotification
object:nil];
[musicPlayer beginGeneratingPlaybackNotifications];
}
-(void)musicPlayerPlayBackStatusChanged:(NSNotification *)notification
{
switch ([musicPlayer playbackState])
{
case: MPMusicPlaybackStateStopped:
NSLog(#"iPod player is stopped)";
//Do something
break;
case: MPMusicPlaybackStatePaused:
NSLog(#"iPod player is paused");
//Do something
break;
case: MPMusicPlaybackStatePlaying:
NSLog(#"iPod player is playing");
//Do something
break;
//Etc.
default:
break;
}
}