无法启动音频播放器

Question

我有一个音频播放器，它不播放声音，有人知道为什么？ 我已导入AVFoundation Framework.h

这是代码：

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.


    NSURL* musicFile = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"begin" ofType:@"mp3"]];
    AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:musicFile error:nil];
    [audioPlayer play];
    audioPlayer.numberOfLoops=-1;
}

Answer 1

添加委托：

 [audioPlayer setDelegate:self];

并确保您的音量设置正确。