AVAudioPlayer,没有声音

Question

我已经将音频工具箱和avfoundation导入到我的班级并将框架添加到我的项目中并使用此代码播放声音:

- (void)playSound:(NSString *)name withExtension:(NSString *)extension
{
    NSURL* soundUrl = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:name ofType:extension]]; 
    AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:soundUrl error:nil];
    audioPlayer.delegate = self;
    audioPlayer.volume = 1.0;
    [audioPlayer play];
}

我称之为:

[self playSound:@"wrong" withExtension:@"wav"];

零声音.非常感谢任何帮助,谢谢.

Answer 1

更新的答案:

我有这个问题.它与ARC有关,与prepareForPlay无关.只需对它进行强有力的引用即可.

如下用户所述:Kinderchocolate:)

在代码中:

.h
~
@property (nonatomic, strong) AVAudioPlayer *player;


.m
~
@implementation
@synthesize _player = player;

Answer 2

是的,ARC也是我的问题.我解决了只是添加:

在.h

@property (strong, nonatomic) AVAudioPlayer *player;

在.m

@synthesize player;

-(void)startMusic{
    NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"Riddls" ofType:@"m4a"];
    NSURL *soundFileURL = [NSURL fileURLWithPath:soundFilePath];
    player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:nil];
    player.numberOfLoops = -1; //infinite
    [player play];
}

Answer 3

我有这个问题.它与ARC有关,与prepareForPlay无关.只需对它进行强有力的引用即可.