Created
December 14, 2018 21:49
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| extension UIViewController { | |
| func add(_ child: UIViewController) { | |
| addChildViewController(child) | |
| view.addSubview(child.view) | |
| child.didMove(toParentViewController: self) | |
| } | |
| func remove() { | |
| guard parent != nil else { | |
| return | |
| } | |
| willMove(toParentViewController: nil) | |
| removeFromParentViewController() | |
| view.removeFromSuperview() | |
| } | |
| } |
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