i have some anchors that should make 5 labels be properly positioned on every orientation. they do work if they start in a specific orientation, however changing the orientation while being in the app makes my labels go off the screen. heres my code:

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let label1 = UILabel()
        label1.translatesAutoresizingMaskIntoConstraints = false
        label1.backgroundColor = UIColor.red
        label1.text = "THESE"
        label1.sizeToFit()

        let label2 = UILabel()
        label2.translatesAutoresizingMaskIntoConstraints = false
        label2.backgroundColor = UIColor.cyan
        label2.text = "ARE"
        label2.sizeToFit()

        let label3 = UILabel()
        label3.translatesAutoresizingMaskIntoConstraints = false
        label3.backgroundColor = UIColor.yellow
        label3.text = "SOME"
        label3.sizeToFit()

        let label4 = UILabel()
        label4.translatesAutoresizingMaskIntoConstraints = false
        label4.backgroundColor = UIColor.green
        label4.text = "AWESOME"
        label4.sizeToFit()

        let label5 = UILabel()
        label5.translatesAutoresizingMaskIntoConstraints = false
        label5.backgroundColor = UIColor.orange
        label5.text = "LABELS"
        label5.sizeToFit()

        view.addSubview(label1)
        view.addSubview(label2)
        view.addSubview(label3)
        view.addSubview(label4)
        view.addSubview(label5)

        var previous: UILabel?

        for label in [label1, label2, label3, label4, label5] {
            label.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor).isActive = true
            label.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor).isActive = true
            label.heightAnchor.constraint(equalToConstant: view.frame.height / 5 - 10).isActive = true

            if let previous = previous {
                label.topAnchor.constraint(equalTo: previous.bottomAnchor, constant: 10).isActive = true
            } else {
                label.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 0).isActive = true
            }

            previous = label
        }
    }
}

i tried using

-setNeedsLayout
-layoutIfNeeded

on orientation change

override func didRotateFromInterfaceOrientation(fromInterfaceOrientation: UIInterfaceOrientation) {
        getScreenSize()
    }
func getScreenSize(){
    view.setNeedsLayout
    view.layoutIfNeeded
}

however this did nothing. changing the

func getScreenSize(){
    view.setNeedsLayout
    view.layoutIfNeeded
}

to print something actually does work which makes me think that

-setNeedsLayout
-layoutIfNeeded

isn't what i actually need to acomplish my goals. I tried searching for something else to no avail. Can someone please help me on this issue?

Hi there!

Just change one line in your code.

FROM:

label.heightAnchor.constraint(equalToConstant: view.frame.height / 5 - 10).isActive = true

TO:

label.heightAnchor.constraint(equalTo: view.heightAnchor, multiplier: 0.2).isActive = true

and then no need for didRotateFromInterfaceOrientation and the rest