UIView shake animation

gistfile1.m

- (void)shake {
    CAKeyframeAnimation * anim = [ CAKeyframeAnimation animationWithKeyPath:@"transform" ] ;
    anim.values = @[
    [NSValue valueWithCATransform3D:CATransform3DMakeTranslation(-5.0f, 0.0f, 0.0f) ],
    [NSValue valueWithCATransform3D:CATransform3DMakeTranslation(5.0f, 0.0f, 0.0f)]];
    anim.autoreverses = YES ;
    anim.repeatCount = 2.0f ;
    anim.duration = 0.07f ;
    [self.layer addAnimation:anim forKey:nil ] ;
}