Question

我想释放我为AVAudioPlayer分配的内存，但是当我尝试释放它时声音没有播放。这是潜在的内存泄漏，我怎么能摆脱这个。

这里下面的代码用于选择错误的选择然后我正在播放错误声音，如果我选择多次错误选择然后它被分配多次然后我怎么能摆脱这个。

        else
        {
            NSString *soundName=@"Error.mp3";

            NSError *error;
            NSURL *urlString = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/%s", [[NSBundle mainBundle] resourcePath],[soundName UTF8String]]];

            AVAudioPlayer *worngAudioPlay = [[AVAudioPlayer alloc] initWithContentsOfURL:urlString error:&error];// here I also used to release using autorelease then not played sound

            worngAudioPlay.delegate = self;

            if (worngAudioPlay == nil)
            {
            }
            else
            { 
                [worngAudioPlay play];
            }
            // [worngAudioPlay release]; // Here I released then not played sound
        }

谢谢你， Madan Mohan。

Answer 1

您可以在名为audioDidFinishPlaying的avaudio播放器委托方法中发布。我完全不知道这个名字。但你可能会知道我在说什么

Answer 2

使它成为你的类的保留属性，并在dealloc中释放它。

在您的标头文件中：

@property(retain)AVAudioPlayer *player;

在您的实现（.m）文件中：

@synthesize player;

在上面的代码中：

else
{
    NSString *soundName=@"Error.mp3";

    NSError *error;
    NSURL *urlString = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/%s", [[NSBundle mainBundle] resourcePath],[soundName UTF8String]]];

    AVAudioPlayer *worngAudioPlay = [[AVAudioPlayer alloc] initWithContentsOfURL:urlString error:&error];

    if (worngAudioPlay != nil)
    {
        // this will cause the previous one to be released
        [self setPlayer:worngAudioPlay];
        [worngAudioPlay release];
        worngAudioPlay.delegate = self;
        [worngAudioPlay play];
    }
}

在你的dealloc：

-(void)dealloc {
    [player release];
    [super dealloc];
}

如何在下面的代码中释放AVAudioPlayer

2 个答案: