Question

Possible Duplicate:
xcode 4.2 soundboard?

Hi I’m creating a soundboard for my iPhone app but I keep getting errors etc in my code can you guys maybe edit it or do you known any better codes for a soundboard i am using Xcode 4.2 and I’m new so please be clear thank you for your time i really appreciate it!!

.h all fine i think no errors

#import <UIKit/UIKit.h>
#import <AudioToolbox/AudioToolbox.h>


@interface ViewController : UIViewController {

}

-(IBAction)sound1:(id)sender;


@end

.m this is the one with errors

#import "ViewController.h"

//@interface ViewController ()


@implementation ViewController


-(IBAction)sound1:(id)sender {
CFBundleRef mainBundle = CFBundleGetMainBundle();
CFURLRef soundFileURLRef;
soundFileURLRef = CFBundleCopyResourceURL(mainBundle, (CFStringRef) @"sound1" , CFSTR ("wav") , null);
}

uint32 soundID;
AudioservicecreatesystemsoundID(soundfileURLRef, &soundID);
AudioservicesPlaysystemsound(soundID) 



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

thank you hope you can help me

Answer 1

AudioToolbox might be a bit too low-level for your needs here… You could probably make your life a lot easier by using AVFoundation; specifically, the AVAudioPlayer class.

In your implementation:

#import <AVFoundation/AVFoundation.h>

- (void)viewDidLoad
{
    NSString      *soundPath = [[NSBundle mainBundle] pathForResource:@"sound1" ofType:@"wav"];
    NSURL         *soundURL  = [NSURL fileURLWithPath:soundPath];
    NSError       *error     = nil;
    AVAudioPlayer *player    = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL error:&error];

    if ( ! player )
    {
        NSLog(@"%@", [error description]);
    }
    else
    {
        [player prepareToPlay];
        [player play];
    }
}

Note that I’m not doing any memory management here. Also, if you need to play more than one sound at a time, you can either create additional instances of AVAudioPlayer, or you might check out the OpenAL library… there’s a great wrapper for it on github here.