Swift present ViewController programmatically while showing segues(arrows) in storyboard

Question

I really love the graphical interface of the storyboard designer in Xcode, because all the segues are displayed with an arrow.

But sometimes, when there is more complexity (e.g. variable to pass), I have to use a programatic way to switch to another ViewController.

let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let nextViewController = storyBoard.instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewController

// pass variable
nextViewController.email = self.textfieldEmail.text!

self.present(nextViewController, animated:true, completion:nil)

I dislike, that some of the segues in my App are displayed with an arrow in storyboard, while the more complex ones are not. Is there any way to show those more complex segues with an arrow in the Main.storyboard?

Isn't this what the `prepare(for:sender:)` method of `UIViewController` is for? — rmaddy, Oct 25 '17 at 18:06
You should review https://stackoverflow.com/questions/5210535/passing-data-between-view-controllers — rmaddy, Oct 25 '17 at 18:07

score 1 · Accepted Answer · answered Oct 25 '17 at 18:05

1

There are two ways to achieve this:

You can create segues in interface builder and pass data in prepareForSegue method
When using code to switch controllers you can still create segue in your storyboard that you will not use - just for visualisation

answered Oct 25 '17 at 18:05

Michał Kwiecień

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How can I create a segue in my storyboard just for visualization? – Alexander Jeitler-Stehr Oct 25 '17 at 18:10
Zoom out a little, now hold ctrl and click and hold on the first view controller, move to the second one and release the mouse button. Segue created. – Michał Kwiecień Oct 25 '17 at 18:14

Swift present ViewController programmatically while showing segues(arrows) in storyboard

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