从子视图向父视图添加视图

Question

I have my rootviewcontroller. in that I load view A. View A containts a button to load view B. however, I don't want to add view B as a subview of view A. which happens if I do this:

- (IBAction)loadViewB:(id)sender {

    if (self.viewB == nil) {
        self.viewB = [[NUMViewController alloc] initWithNibName:@"NUMviewController" bundle:Nil];
    } 

    [self.view addSubview:viewB.view];

}

I want to load viewB as a subview of my rootview. so I can animate out viewA before animating in viewB.

but I'm not sure how I must approach this. I'm guessing I need a method in my rootViewController to handle the adding and removing of the subview. I would need to be able to call that method from within my viewA subview.

any ideas? thanks!

Answer 1

try [self.view.superview addSubview:viewB.view]
But I don't think this is the best approach as it comes to MVC.
What can you do is add viewA to self.view and viewB to self.view also.