Rest of StackView doesn't shift after resizing subview

Asked Jul 27 '17 at 21:27

Active Jul 27 '17 at 21:27

Viewed 54 times

An ImageView is at the top of my UIStackView. Every time that I programmatically change the height of the ImageView, the rest of the stack view doesn't shift up or down. It stays in the same place.

To change the height of the imageview, I'm using

imageView.frame.size.height = 100

How can I cause the rest of the stackview to 'refresh'?

asked Jul 27 '17 at 21:27

James Dorfman

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How did you configure subviews of the stack view? – Ryan Jul 27 '17 at 21:38
I constrained their Top to 0 – James Dorfman Jul 27 '17 at 21:40
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If you used auto layout, setting frame will not work at all. Also I don't think you can change struct's property directly. – Ryan Jul 27 '17 at 21:42
Do you know how I could do it? – James Dorfman Jul 27 '17 at 21:43
Change the constraint.constant. – Ryan Jul 27 '17 at 21:45
I'm not sure what that means. Could you please explain further? – James Dorfman Jul 27 '17 at 21:59
If your imageView has edges constraint to its superview which is the `StackView` and the size of imageView is decided by auto layout, changing `frame` will not work. If you want to update StackView's frame by its subview(imageView), you need to update imageView's constraint so it will update superview's size. – Ryan Jul 27 '17 at 22:24

Rest of StackView doesn't shift after resizing subview

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