Custom init of UIViewController from storyboard

Question

I tried finding some relevant questions but couldn\'t get anything, hope someone can help.

I set up some UIViewController\'s on a storyboard. I then want to load one

Answer 1

A simplification of my prior answer which is quick and avoids alternative hacky fixes:

Here is a detail view controller you may want to instantiate from storyboard with an objectID set:

import UIKit

class DetailViewController: UIViewController {

    var objectID : Int!

    internal static func instantiate(with objectID: Int) -> DetailViewController {

        let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "DetailViewController") as DetailViewController
        vc.objectID = objectID
        return vc
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        if((objectID) != nil){
            print("Here is my objectID: \(objectID)")
        }
    }
}

Here is how you would use it to push onto a navigation controller with objectID set to 1:

self.navigationController.pushViewController(DetailViewController.instantiate(1), animated: true)

Added a blog post: https://theswiftcook.wordpress.com/2017/02/17/how-to-initialize-a-storyboard-viewcontroller-with-data-without-segues-swift-3-0git/

Link to example on GitHub: https://github.com/hammadzz/Instantiate-ViewController-From-Storyboard-With-Data