UIStackView not calling draw of custom UIView

Question

I have a UIView with a custom draw(_ rect: CGRect) method, which works.

However, when I place it inside a UIStackView, its draw method is not called. UILabel or UIImage inside the same stack view display normally.

In Interface Builder, it is drawn even inside the stack view, but when running on the device, it's not.

I'm having the same issue. I have some custom views drawing with code from PaintCode. They draw perfectly outside of a UIStackView, but when inside a UIStackView the draw() method is never even called (although they DO show up in the storyboard). Did you find any solution? — Kenny Wyland, Oct 23 '19 at 21:26

score 0 · Answer 1 · edited Sep 20 '21 at 15:37

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draw(_ rect: CGRect) doesn't call in addArrangedSubview of stack. Instead you can put your code into layoutSubviews.

edited Sep 20 '21 at 15:37

Ruli

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answered Sep 20 '21 at 11:42

BabakAfsheh

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score 0 · Answer 2 · answered Jul 12 '22 at 11:39

Solved it by adding a wrapper view first and after adding it to the UIStackView, i added my Custom-Drawing view into the wrapper view. (This is written in C# but I'm pretty sure it'll help anyway)

UIView wrapperView = new UIView(f);

CanvasStackView.AddArrangedSubview(wrapperView);

CGRect f = new CGRect(CGPoint.Empty,new CGSize(CanvasStackView.Frame.Size.Width, height));
MyCustomView b = new MyCustomView(f);

wrapperView.AddSubview(b);

score 0 · Answer 3 · answered Jun 04 '23 at 20:35

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I've had the same issue. Check your view's constraints. I've added leading/trailing space and height to resolve this.

answered Jun 04 '23 at 20:35

Axel Stein

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UIStackView not calling draw of custom UIView

3 Answers3