Load All TabBar Views

Question

I have a tabbar controller as the root view controller. I would like to pre-load the views of tab [1,2,3] (tab 0 loads as the first tab automatically).

I essentially

Answer 1

If your all view controllers under the tab bar controller have a navigation bar embedded in them:

Swift 3

for navViewController in self.viewControllers! {
    _ = navViewController.childViewControllers[0].view
}

User Panda's solution didn't work for me.