Move from one view controller to another without button

Question

I'm new to swift, so wanted to ask, how to move from one view controller to another without a button, but with label. For example if label is "bluhbluh" then it moves to second view controller. Thanks!

You could set an observer for the label's text and if the text matches what you're looking for, the observer would call an action that performs the segue. http://stackoverflow.com/a/28395000/4475605 — Adrian, Jan 18 '17 at 18:31
You could to create a segue with an identifier on Interface builder from one view controller to the other. Then, in your code you should create a condition, for example on viewDidLoad, that check if label text = "bluhbluh" and it that is true, you perform that segue with the identifier. Anyways, it would help more to see what you want to achieve, since having a label for a transition between scenes sounds weird, at least for me, would make more sense to transition to other if the user taps something on a text field instead of a label condition. But thats because I don't know what you want. — Mago Nicolas Palacios, Jan 18 '17 at 18:42
@Adrian He is talking about a label... I also think that a text field makes more sense, but thats what he is asking. — Mago Nicolas Palacios, Jan 18 '17 at 18:44
I agree with one comment here - why? It's not intuitive, not user-expected, not even developer expected. Besides, why not just make a UIButton, which **has** a label in it, **look** like a label? — , Jan 18 '17 at 18:58

score 1 · Answer 1 · answered Jan 18 '17 at 19:46

As others have mentioned, this is probably not a good pattern to follow. But to answer your question, you could try something like this.

import UIKit

class FirstViewController: UIViewController {

    @IBOutlet weak var label: UILabel!

    override func viewDidLoad() {
        super.viewDidLoad()

        label.addObserver(self,
                          forKeyPath: "text",
                          options: [.new, .old],
                          context: nil)
    }

    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        if keyPath == "text" {
            if label.text == "Text that triggers navigation" {
                let secondVC = SecondViewController()
                navigationController?.pushViewController(secondVC, animated: true)
            }
        }
    }

}

class SecondViewController: UIViewController {}

Move from one view controller to another without button

1 Answers1