Question

I have an object moving around the screen and once it reaches the edges it it changes direction and plays a sound this all works fine except that when it plays the sound I freezes for about half a second is there any way of making this run smoothly with the sound and object movement?

-(void)viewDidLoader
{
NSString *path1 = [[NSBundle mainBundle] pathForResource:@"ballbounce" ofType:@"mp3"];
ballbounce = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path1] error: NULL];
[ballbounce prepareToPlay];
}

-(void) ballcollition 
{
[self ballplaysound]
enemy.center = CGPointMake(enemy.center.x+pos.x,enemy.center.y+pos.y);

    if (enemy.center.x > 328 || enemy.center.x < 0)

    {
        pos.x = -pos.x;



    }
}
-(void)ballplaysound
{
if (enemy.center.x > 328 || enemy.center.x < 0 ||enemy.center.y < 0||enemy.center.y < 300)
[ballbounce play];
}

Answer 1

use the System Sound for sound that plays smoothly.

Original NON-ARC answer:

#import <AudioToolbox/AudioToolbox.h>

- (IBAction)soundButton:(id)sender {

NSString *soundPath = [[NSBundle mainBundle] pathForResource:@"alert" ofType:@"wav"];

SystemSoundID soundID;

AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath: soundPath], &soundID);

AudioServicesPlaySystemSound (soundID);

[soundPath release];

}

Updated for ARC, and turned into a utility function:

- (void)soundPlay:(NSString*)waveName {
    // wavName = @"alert" without any file extension (not alert.wav)

    NSString *soundPath = [[NSBundle mainBundle] pathForResource:waveName ofType: @"wav"];

    SystemSoundID soundID;

    AudioServicesCreateSystemSoundID((__bridge CFURLRef)[NSURL fileURLWithPath: soundPath], &soundID);

    AudioServicesPlaySystemSound (soundID);


}