push root viewcontroller from appdelegate - ios

Question

My app rootviewcontroller is with tab bar, but when I use firebase push notification it only allows me "present" method. I want to view the controller with push (like child) to have the tab bar and back option when i view this view controller.
In my code I want to transfer from present to PUSH but i cant find solution. currentController.present(controller, animated: true, completion: nil)
func userNotificationCenter(_ center: UNUserNotificationCenter,
didReceive response: UNNotificationResponse,
withCompletionHandler completionHandler: #escaping () -> Void) {
if Defaults.hasKey(.logged), let logged = Defaults[.logged], logged == true {
//TODO
if let controller = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ProductDetailsViewController") as? ProductDetailsViewController {
controller.productFromNotificationByCode(code: userInfo["product_code"] as! String, productID: userInfo["product_id"] as! String)
if let window = self.window, let rootViewController = window.rootViewController {
var currentController = rootViewController
while let presentedController = currentController.presentedViewController {
currentController = presentedController
}
currentController.present(controller, animated: true, completion: nil)
}
}
}
print(userInfo)
}
completionHandler()
}

Answer 1

The easiest way to do it would be to wrap your root view controller in a UINavigationController in your storyboard. This would make the actual root controller a UINavigationController rather than a UITabBarController.
once that is done you can simply do
if let window = self.window, let rootNavController = window.rootViewController as? UINavigationController {
navigationController?.pushViewController(controller, animated: true)
}
Alternately, if all you're really looking for is a "Slide from the right" animation and don't need a full navigation stack, you could write a custom view controller transition that gave a similar effect using modal controllers.

Answer 2

I have not tested yet, but I believe it's just works. Try this:
func pushViewController() {
let storyboard = UIStoryboard.init(name: "YourStoryboardName", bundle: nil)
let tabBarController = storyboard.instantiateViewController(withIdentifier: "YourTabBarController") as! UITabBarController
let navigationController = storyboard.instantiateViewController(withIdentifier: "YourNavigationController") as! UINavigationController
let productDetailsViewController = storyboard.instantiateViewController(withIdentifier: "ProductDetailsViewController") as! ProductDetailsViewController
tabBarController.viewControllers = [navigationController]
if tabBarController.selectedViewController == navigationController {
navigationController.pushViewController(productDetailsViewController, animated: true)
}
self.window = UIWindow.init(frame: UIScreen.main.bounds)
self.window?.rootViewController = tabBarController
self.window?.makeKeyAndVisible()
}