can I stop the play back using my app - iphone

Question

I am using AudioPlayer to stop all playbacks , as code is given
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:#"%#/audiofile.mp3", [[NSBundle mainBundle] resourcePath]]];
NSError *error;
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
audioPlayer.numberOfLoops = -1;
if (audioPlayer == nil)
NSLog([error description]);
else
[audioPlayer play];
But i can stop all play back using this but can not again play stopped play backs.How can I do this please help

Answer 1

You can easily play pause stop your AVAudioPlayer with these three methods:
- (void)pause
- (void)stop
- (BOOL)play //Returns YES on success, or NO on error.
If you pause, you can then play to resume from where you paused.
Hope this helps, i really don't see where your problem is!
in the code you gave, you are not pausing, you are just playing it with numberOfLoops negative.
You should have a method to start your music like this:
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:#"%#/audiofile.mp3", [[NSBundle mainBundle] resourcePath]]];
NSError *error;
audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
audioPlayer.numberOfLoops = 0;//play once
if (audioPlayer == nil)
NSLog([error description]);
else
[audioPlayer prepareToPlay];
[audioPlayer play];
And another for pausing:
[audioPlayer pause];
And another for resuming:
[audioPlayer play];
To toggle iPod music when the app starts and exits override these two methods:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
MPMusicPlayerController *musicPlayer;
MPMusicPlaybackState playbackState = [musicPlayer playbackState];
if (playbackState == MPMusicPlaybackStatePlaying) { //simple verification
[musicPlayer pause];
}
}
- (void)applicationWillResignActive:(UIApplication *)application
if (playbackState == MPMusicPlaybackStateStopped || playbackState == MPMusicPlaybackStatePaused) {//simple verification
[musicPlayer play];
}
}
Hope it finally suits your needs!