gistfile1.m

_myContainer = [[UILabel alloc] initWithFrame:frame];
        _myContainer.backgroundColor = [UIColor greenColor];
        
        
        [self.view addSubview:_myContainer];
        
        UIView *subview = [[UIView alloc] initWithFrame:_myContainer.bounds];
        
        
        subview.backgroundColor = [UIColor yellowColor];
        
        
        [UIView transitionWithView:_myContainer duration:0.5 options:UIViewAnimationOptionTransitionFlipFromBottom animations:^{[_myContainer addSubview:subview];} completion:^(BOOL finished) {NSLog(@"I finished from up");}];