Switching to a TabBar tab view programmatically?

Question

Let\'s say I have a UIButton in one tab view in my iPhone app, and I want to have it open a different tab in the tab bar of the TabBarController.

Answer 1

Like Stuart Clark's solution but for Swift 3:

func setTab(_ myClass: T.Type) {
    var i: Int = 0
    if let controllers = self.tabBarController?.viewControllers {
        for controller in controllers {
            if let nav = controller as? UINavigationController, nav.topViewController is T {
                break
            }
            i = i+1
        }
    }
    self.tabBarController?.selectedIndex = i
}

Use it like this:

setTab(MyViewController.self)

Please note that my tabController links to viewControllers behind navigationControllers. Without navigationControllers it would look like this:

if let controller is T {