Open Navigation Controller from App Delegate

Question

I've implemented an URL scheme for the redirect back to my app after payment. When a webpage direct back to my app, the app should open a navigation controller over the current view. (So open it modal).

How to do this from the AppDelete in the func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool-method?

Thanks in advance!

Possible duplicate of [Opening view controller from app delegate using swift](https://stackoverflow.com/questions/30592521/opening-view-controller-from-app-delegate-using-swift) — Tamás Sengel, Sep 28 '17 at 14:55
@the4kman Hi, the differents is that I want to open it OVER my current view. — Rick de Jong, Sep 28 '17 at 14:59
what's the version you're targeting? is it higher than iOS 9? — Massimiliano Del Maestro, Sep 28 '17 at 15:23
@RickdeJong then be careful, whatever method you use to present your view modally, the method "application(_ application:open:sourceApplication:annotation:) -> Bool" its deprecated as of iOS 9. Use the newer "application(_:open:options:)" instead. — Massimiliano Del Maestro, Sep 28 '17 at 15:48

score 1 · Accepted Answer · answered Sep 28 '17 at 15:19

If the view controller that submitted the request is the one that should display the modal, I'd suggest a different approach. I would suggest defining a notification in the notification center that you use to notify the current view controller.

In your view controller, make a call to one of the Notification center methods like addObserver(forName:object:queue:using:) to observe your notification.

Then call a Notification method like post(name:object:) from your app delegate's implementation of application(_:open:options:) when you get the expected URL.

Robert D. Mogos · Answer 2 · 2017-09-28T15:00:19.593

0

Are you using a storyboard or you manually create the window in the delegate? If you have access to the window, you can do this:

window?.rootViewController?.present(yourViewController, animated: true, completion: nil)

Otherwise, it should work in all cases:

UIApplication.shared.keyWindow?.rootViewController?.present(yourViewController, animated: true, completion: nil)

edited Sep 28 '17 at 15:00

answered Sep 28 '17 at 14:55

Robert D. Mogos

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Hi there! I'm using storyboards. Is it possible to do this with a modal transition? – Rick de Jong Sep 28 '17 at 15:01
It is a modal transition. You can customise it by doing `yourViewController. modalTransitionStyle` or customise the `yourViewController. modalPresentationStyle` – Robert D. Mogos Sep 28 '17 at 15:06

Open Navigation Controller from App Delegate

2 Answers2