iphone - 设备中出现声音问题

NSString *musicPath = [[NSBundle mainBundle] pathForResource:@"ding" ofType:@"mp3"];
if (musicPath)
{
    if(TapSoud)
    {
        [TapSoud release];
        TapSoud = nil;
    }
    TapSoud = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:musicPath] error:nil];
}

[TapSoud setDelegate:self];
[TapSoud prepareToPlay];
[TapSoud play];


NSString *musicPath1 = [[NSBundle mainBundle] pathForResource:@"roadrunner" ofType:@"mp3"];
if (musicPath1)
{
    if(MatchSoud)
    {
        [MatchSoud release];
        MatchSoud = nil;
    }
    MatchSoud = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:musicPath1] error:nil];
}

[MatchSoud setDelegate:self];
[MatchSoud prepareToPlay];

NSString *musicPath2 = [[NSBundle mainBundle] pathForResource:@"Wrong Answer" ofType:@"wav"];
if (musicPath2)
{
    if(WrongMatchSoud)
    {
        [WrongMatchSoud release];
        WrongMatchSoud = nil;
    }
    WrongMatchSoud = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:musicPath2] error:nil];
}

[WrongMatchSoud setDelegate:self];
[WrongMatchSoud prepareToPlay];

此代码可在模拟器中正常运行，但在设备上不产生声音。这里有什么问题？

最佳答案

最可能的问题是项目或资源复制阶段都缺少音频文件。模拟器会存储先前复制的资源，即使从项目中删除了该资源，直到将应用程序从模拟器中完全删除为止。

确保musicPath，musicPath1和musicPath2不为空且有效。