What should I do to call audioPlayerDidFinishPlaying: - objective-c

Question

I wrote this source program . But I can't call audioPlayerDidFinishPlaying: method.
After playing the sound, which crashes by "exc_bad_access" error after a few seconds.
.h file
#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>
#interface SecondViewController : UIViewController<
AVAudioPlayerDelegate>{
AVAudioPlayer *aPlayer;
}
#end
.m file
-(void)playSound{
NSString *soundName = #"red";
NSError *error = nil;
NSURL *soundUrl = [[NSBundle mainBundle] URLForResource:soundName withExtension:#"mp3"];
aPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:soundUrl error:&error];
if (error != nil) {
NSLog(#"audio_player initialized error :(%#)",[error localizedDescription]);
[aPlayer release];
error=nil;
return;
}
NSLog(#"player Ok!");
aPlayer.delegate = self;
[aPlayer prepareToPlay];
aPlayer.volume=1.0f;
[aPlayer play];
}
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{
[player release];
}

Answer 1

This is what I use that works perfectly, it should help you.
-(void)playSound{
NSString *name = [[NSString alloc] initWithFormat:#"red"];
NSString *source = [[NSBundle mainBundle] pathForResource:name ofType:#"mp3"];
if (data) {
[data stop];
data = nil;
}
data=[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath: source] error:NULL];
data.delegate = self;
[data play];
}
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)data successfully:(BOOL)flag{
NSLog(#"my log");
[data release];
}