audioPlayerDidFinishPlaying never triggers - iphone

Question

I created a custom class to handle audio playback.
AudioPlayback.h
#import <Foundation/Foundation.h>
#import "AVFoundation/AVAudioPlayer.h"
#import <AVFoundation/AVFoundation.h>
#interface AudioPlayback : NSObject <AVAudioPlayerDelegate> {
AVAudioPlayer *player;
BOOL playing;
NSTimeInterval duration;
}
#property (nonatomic, assign) AVAudioPlayer *player;
#property (readonly) BOOL playing;
#property (readonly) NSTimeInterval duration;
-(NSTimeInterval)GetSoundFileDuration:(NSString *) sound_file_name;
-(void)PlaySoundFile:(NSString *) sound_file_name;
-(void)play;
-(void)stop;
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag;
#end
Then, in AudioPlayback.h
#import "AudioPlayback.h"
#implementation AudioPlayback
#synthesize player;
-(id)init
{
self = [super init];
if (self != nil)
{
player = [[AVAudioPlayer alloc] init];
[player initWithContentsOfURL:nil error:nil];
player.delegate = self;
}
return self;
}
-(void)PlaySoundFile:(NSString *) sound_file_name
{
NSURL *sound_file = [[NSURL alloc] initFileURLWithPath: [[NSBundle mainBundle] pathForResource:sound_file_name ofType:#"mp3"]];
[player initWithContentsOfURL:sound_file error:nil];
[player prepareToPlay];
[player play];
[sound_file release];
}
...
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
NSLog(#"audioPlayerDidFinishPlaying");
}
The callback never triggers. Am I missing anything obvious?

Answer 1

I think "player.delegate = self" is call too early. You "initWithContentsOfURL" again in your "PlaySoundFile", which I think that cause the problem.
Try to put "player.delegate = self" before the "[player prepareToPlay]" in your "PlaySoundFile" method