Adapting an example, doesn't work fully yet

CABasicAnimation

- (void) present
{
    CABasicAnimation *a;
    
    a = [CABasicAnimation animationWithKeyPath: @"transform.scale"];
    
    a.duration = 6;
    a.repeatCount = 0;
    a.autoreverses = NO;
    a.fromValue = [NSNumber numberWithFloat: 0];
    a.toValue = [NSNumber numberWithFloat: 1.2];
    a.removedOnCompletion = YES;
    a.delegate = self;
    [self addAnimation: a forKey: @"firstScale"];
    
    NSLog(@"Intro scale");
}

- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag
{
    if (theAnimation == [self animationForKey: @"firstScale"])
    {
        NSLog(@"End of first scale");
        CABasicAnimation *a;
        
        a = [CABasicAnimation animationWithKeyPath: @"transform.scale"];
        
        a.duration = 2;
        a.repeatCount = 0;
        a.autoreverses = NO;
        a.fromValue = [NSNumber numberWithFloat: 1.2];
        a.toValue = [NSNumber numberWithFloat: 1.0];
        a.removedOnCompletion = YES;
        a.delegate = self;
        [self addAnimation: a forKey: @"endScale"];
        NSLog(@"Scaling finished");
    }
}