CODEWITHSUNDEEP
iosobjective-cuiviewuilabelsizetofit
Doug Smith
Doug Smith

Reputation: 29316

Why does sizeToFit not work when trying to vertically align my UILabel? It just stays in the center

I was reading this post for advice on how to vertically align text within a UILabel, and the top comment seemed to present a great solution.

I have my UILabel,with number of lines to 0. Then in viewDidLoad for the View Controller it's a part of, I called sizeToFit on it, but it still only occupies the middle.

It looks like this in Interface Builder:

enter image description here

And looks the exact same when I run it, the text is still really far away from the navigation bar when I'd prefer it to be very close, preferably at the top of that outline box.

What am I doing wrong?

Upvotes: 0

Views: 1101

Answers (2)

jrturton
jrturton

Reputation: 119242

That screenshot shows a specific height constraint against the label (the blue I-bar to the right). This will override any sizeToFit calls, since they just affect the intrinsic size.

If you delete that constraint, the label's intrinsic size will leave it the minimum size possible to contain the text, and will therefore be up next to the navigation bar.

Upvotes: 0

Joe
Joe

Reputation: 3761

Right at the bottom just above his original answer he quotes another user saying

If your label is included in a nib or storyboard as a subview of the view of a ViewController that uses autolayout, then putting your sizeToFit call into viewDidLoad won't work, because autolayout sizes and positions the subviews after viewDidLoad is called and will immediately undo the effects of your sizeToFit call. However, calling sizeToFit from within viewDidLayoutSubviews will work.

Upvotes: 1

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