width not picked up by cgrect()

Question

i wanted to ask why doesnt my layer.frame = cgrect() doest not pick up the width (350) which i have set in the viewDidLayoutSubviews even though it does get printed in the console. but the width remains the same(390) as i have set in the storyboard.

override func viewDidLayoutSubviews() {

        width = masjidName.frame.width

        print(width)


    }


    override func viewDidLoad() {
        super.viewDidLoad()

        viewDidLayoutSubviews()

        let bottomLine1 = CALayer()
        bottomLine1.frame = CGRect(x: 0.0, y: masjidName.frame.height - 1, width: width, height: 1)
        bottomLine1.backgroundColor = UIColor.black.cgColor

        let bottomLine2 = CALayer()
        bottomLine2.frame = CGRect(x: 0.0, y: masjidName.frame.height - 1, width: width, height: 1)
        bottomLine2.backgroundColor = UIColor.black.cgColor

}

First, never, never, never call `viewDidLayoutSubviews()`. If you comment-out your entire `viewDidLoad()` function, but leave `viewDidLayoutSubviews()` as you have it, what value do you get from from your current `print(width)` statement? — DonMag, Apr 10 '20 at 20:12

score 0 · Answer 1 · answered Apr 09 '20 at 17:08

0

Move your entire code to viewDidLayoutSubviews. viewDidLayoutSubviews is a callback method and you should not call this explicitly. I would suggest you to go through ViewController lifecycle HERE

answered Apr 09 '20 at 17:08

Mohammad Sadiq

5,070
28
29

i even tried it in the didset property of my variable. something is really strange here – salman Apr 09 '20 at 17:47

score 0 · Accepted Answer · answered Apr 11 '20 at 22:07

0

I got it to work by moving what I had In viewdidload into viewdidappear. As it takes a while for widths to update and viewdidload is called before it.

answered Apr 11 '20 at 22:07

salman

27
6

width not picked up by cgrect()

2 Answers2