CODEWITHSUNDEEP
iosswiftuistackview
jshapy8
jshapy8

Reputation: 2051

Dynamically size UIStackView when one of its items gets larger

I have two items in a vertical UIStackView: a UILabel and a UITableView. When a dynamic amount of UITableViewCells get added to the UITableView at runtime, the UIStackView does not get larger.

Is there a general way to increase the size of the UIStackView?

Upvotes: 31

Views: 67343

Answers (5)

geohei
geohei

Reputation: 802

A bit old the question, but it might help others nevertheless.
I was looking a long time to get this right.
If you have a vertical stack view in which your subviews are placed, create an outlet of before mentioned vertical stack view and do the following in viewDidLoad() (of the popover view controller in my case):

self.view.layoutIfNeeded()
self.preferredContentSize.height = verticalStackView.sizeThatFits(CGSizeZero).height

Unlike what @Siriss said, sizeToFit() was not necessary in my case.

Upvotes: 0

Urkman
Urkman

Reputation: 1318

I had this on iOS 12, while it was working fine on iOS 13. Just set:

stackView.distribution = .fillProportionally

Fixed it :)

Upvotes: 13

Muhammad Iqbal
Muhammad Iqbal

Reputation: 119

you one need to fill proportionally and it will work according to your code

Upvotes: 5

Siriss
Siriss

Reputation: 3777

You should call sizeToFit() and layoutIfNeeded() on the subviews of the stackView. Constrain the UIStackView as you normally would, and constrain the subviews as you normally would.

Also, you need to have it set to Fill Proportionally and it will resize to fit the new content.

Upvotes: 29

NeroSeph
NeroSeph

Reputation: 161

Make sure you don't have a bottom constraint of a height constraint on the stackview. You should only need left, right and top constraint.

Upvotes: 16

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