我有以下代码,并且找到了 sound_file。我也没有错误。音频文件被添加到包中。但是我在 iOS 模拟器上没有声音。
- (void)playNotificationSound
{
    NSString *sound_file;
    AVAudioPlayer * audioPlayer;
    sound_file = [[NSBundle mainBundle] pathForResource:@"onebell" ofType:@"caf"];
    if (sound_file){
        NSURL *url = [[NSURL alloc] initFileURLWithPath:sound_file];
        NSError *error;
        audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
        //audioPlayer.delegate = self;
        audioPlayer.volume = 1.0f;
        [audioPlayer prepareToPlay];
        [audioPlayer play];
    }
}