Wiggle Animation

wiggle

- (void) addWiggleAnimationForView:(UIView*)someView
{
    
	CAKeyframeAnimation *anim = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation"];
    anim.values = [NSArray arrayWithObjects:[NSNumber numberWithFloat:-0.05],
				   [NSNumber numberWithFloat:0.05],
				   nil];
    anim.duration = 0.09f + ((rand() % 10) * 0.01f);
    anim.autoreverses = YES;
    anim.repeatCount = FLT_MAX;
    [someView.layer addAnimation:anim forKey:@"wiggleRotation"];
    
    anim = [CAKeyframeAnimation animationWithKeyPath:@"transform.translation.y"];
    anim.values = [NSArray arrayWithObjects:[NSNumber numberWithFloat:-1],
                   [NSNumber numberWithFloat:1],
                   nil];
    anim.duration = 0.07f + ((rand() % 10) * 0.01f);
    anim.autoreverses = YES;
    anim.repeatCount = FLT_MAX;
    anim.additive = YES;
    [someView.layer addAnimation:anim forKey:@"wiggleTranslationY"];
}