What should I do to call audioPlayerDidFinishPlaying:

问题

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];
}

回答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];
}

来源：https://stackoverflow.com/questions/9821195/what-should-i-do-to-call-audioplayerdidfinishplaying

标签

objective-c

ios

exc-bad-access

avaudioplayer