Autosize UILabel

Question

Is there a way to auto size a UILabel? given size 40 x 40 the text font size would adjust based on the number of characters.

Luong

Answer 1

You can use the adjustFontSizeToFitWidth property. So something like this.

UILabel *myLabel = [[UILabel alloc] init];
[myLabel setAdjustsFontSizeToFitWidth:YES];

In Interface Builder there is a check box on the Label Attributes screen to allow you to adjust the font size to fit the label as well.

Inhumane

No problem. Sorry, the sample code used to read adjustFontSizeToWidth, but it should be adjustFontSizeToFitWidth. I corrected it. – Inhumane

You skip one letter in AdjustS: [myLabel setAdjustsFontSizeToFitWidth:YES]; – Emulous

Answer 2

uhm, did you check out the UILabel API http://developer.apple.com/iphone/library/documentation/uikit/reference/UILabel_Class/Reference/UILabel.html there's a neat property called adjustsFontSizeToFitWidth

Maice

no worries :) sorry, that I didn't provide any sample code. Besides the Apple Docs are very valuable and useful. – Maice

Answer 3

With autolayout design concept, do not set height constraints for UILabel and set no. of lines as 0.

Autolayout automatically take care of dynamic height of label according to text of label. If label has single line text then it will occupy single line space only. And if label has more than one line then it will resize label according to text size and number of lines required to display text.

Set number of lines zero for dynamic text information, it will be useful when your text are varying.

Programatically (Swift 4)

var label = UILabel()
let stringValue = "iOS\nmultiline\nlabel\nin\nInterface\nbuilder"
label.text = stringValue
label.numberOfLines = 0 // Set 0, if number of lines not specified.
label.lineBreakMode = .byTruncatingTail // or .byWrappingWord
label.minimumScaleFactor = 0.8 . // It is not required but nice to have a minimum scale factor to fit text into label frame

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Using Inetrface Builder

Note: It is not required to set Minimum Font Scale, but nice to have a minimum scale factor to fit text into label frame.

Ref: UILabel - numberOfLines

Abirritate

Answer 4

Its better to use Intrinsic content and compression resistance priorities to adjust the size of label w.r.t content.

Cosmorama