如何将 self 作为委托从 tabViewController 中的一个 viewController 发送到另一个 viewController

Question

I have a custom tabViewController and I would like to pass self as a delegate from viewController one to viewController two (which is modal). The problem is that when I go between viewControllers using the tabs the prepare function isn't triggered as the tabViewController handle the transitions I suppose.

So how do I make this happen? How do I pass self from one viewController to the next.

Answer 1

Actually inside any VC that's inside the tab you could do

// suppose you need to access second tab 
if let targetVC = self.tabBarController?.viewControllers[1] as? SecondVC {
  // do what you want
}