Stack View not getting added as a subview programmatically

Question

I have an array of buttons which I have added within a stackview, I need to add this stackView in one of my subview which is in another parentStackView. This is my code:

        let innerStackView = UIStackView(arrangedSubviews: buttonViews(withTitleArray: buttonTitleArray, numberArray: ButtonTagArray))
        innerStackView.backgroundColor = UIColor.green
        innerStackView.axis = .vertical
        innerStackView.distribution = .fillEqually
        innerStackView.alignment = .fill
        innerStackView.spacing = 5
        innerStackView.translatesAutoresizingMaskIntoConstraints = false
        mainView.bottomView.backgroundColor = UIColor.red
        mainView.bottomView.addSubview(innerStackView)
        NSLayoutConstraint.activate([
            mainView.leadingAnchor.constraint(equalTo: innerStackView.leadingAnchor),
            mainView.trailingAnchor.constraint(equalTo: innerStackView.trailingAnchor),
            mainView.widthAnchor.constraint(equalTo: innerStackView.widthAnchor),
            mainView.heightAnchor.constraint(equalTo: innerStackView.heightAnchor)])
       mainView.alpha = 1
        mainView.clipsToBounds = true
        parentstackView.addArrangedSubview(mainView)
        self.view.layoutIfNeeded()

The issue is that even though I can see the mainView in my parentStackView, the inner stackview is not visible. I can't seem to understand why?

Any help would be appreciated.

You are adding it as a subview of the bottomView. Can you see the bottomView (background color is red)? — wottle, Oct 18 '17 at 14:09
@wottle yes I can see the red color, i cant see the green color of inner stackView — Geet, Oct 18 '17 at 14:16
Why wouldn't you set the constraints of the innerStackView to its parent, the bottomView? Why use the mainView for its constraints? — wottle, Oct 18 '17 at 14:21
*"i cant see the green color of inner stackView"* `UIStackView` is non-rendering... so you won't see a "background color" even if you try to set it. — DonMag, Oct 18 '17 at 14:24
Log you stackView frame after ```self.view.layoutIfNeeded()```, it can be zero. — Roman Simenok, Oct 24 '17 at 12:01

score 0 · Accepted Answer · answered Oct 24 '17 at 11:59

0

okay, So I couldn't find a solution programmatically, I ended up making the bottomView in the interface builder and binding it with the mainview with the help of constraints.That did the trick for me.

answered Oct 24 '17 at 11:59

Geet

2,427
2
21
39

Stack View not getting added as a subview programmatically

1 Answers1