Question

View A has a button upon clicking it, we go to view B

• View B does not retain a pointer to view A.
• From view B, i’d like to load view A back (programmatically)

Effectively, i’d like to kill B and replace it with A.

I was thinking that the following should work but, it does not

Calling from View B

ViewController *main = [ViewController new];    
[self addSubview:[main view]];

What am i missing please?

Answer 1

Personally I think the easiest way to do this would be by having a UIViewController with an IBOutlet to both UIView objects. You can add and design them both in the interface builder and just set one of them (view B) as hidden (it’s a property in UIView).
Then, you could specify a button action to toggle the visibility of view B.

I must add though that there are constructs for implementing screen flows, such as the NavigationController. In your case, however, you might also consider the use of the presentModalViewController:animated: method.

It all depends really, but in general it’s better practice to make a seperate UIViewController for each UIView in your application.

Hope this helps!