Question

I am an experienced programmer in C, yet not objective c. I am trying to help my friend out by giving him this piece of code in objective c. By the way, this is for an iPhone application. I have all foundations necessary, and as you can see, have declared my sound as soundA, using the – (IBAction) method… In addition, the sound is a simply .wav file no larger than 100 kb.

- (IBAction)soundA:(id)sender {
    CFBundleRef mainBundle = CFBundleGetMainBundle();
    CFURLRef soundFileURLRef;
    soundFileURLRef = CFBundleCopyResourceURL(mainBundle, 
        (CFStringRef) @"soundA", CFSTR ("wav"), NULL);

    UInt32 soundID;
    AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
    AudioServicesPlaySystemSound(soundID);
}

Any help is greatly appreciated! Thanks so much.

• Kook

Answer 1

Maybe try changing it from an Unsigned Int to SystemSoundID

 - (IBAction)soundA:(id)sender {
        CFBundleRef mainBundle = CFBundleGetMainBundle();
        CFURLRef soundFileURLRef;
        soundFileURLRef = CFBundleCopyResourceURL(mainBundle, 
            (CFStringRef) @"soundA", CFSTR ("wav"), NULL);

        SystemSoundID soundID;
        AudioServicesCreateSystemSoundID(soundFileURLRef, &soundID);
        AudioServicesPlaySystemSound(soundID);
    }

Or go with a more Objective-C approach:

 - (IBAction)soundA:(id)sender {
        NSString *path = [NSString stringWithFormat: @"%@/%@",
                     [[NSBundle mainBundle] resourcePath], name];


        NSURL* filePath = [NSURL fileURLWithPath: path isDirectory: NO];
        SystemSoundID soundID;
        AudioServicesCreateSystemSoundID((CFURLRef)filePath, &soundID);
        AudioServicesPlaySystemSound(soundID);
    }