How do I change the font size of a UILabel in Swift

Question

label font pointSize is read-only  so I m not sure how to change it

User · Answer

In Swift 3   label   UIFont systemFont ofSize  20    and to use system preset sizes  for example   label   UIFont systemFont ofSize  UIFont smallSystemFontSize

User · Answer

We can set font as per our requirement like   label font   UIFont name   Avenir-Light   size  15 0  label font   UIFont boldSystemFontOfSize 15  label font   UIFont italicSystemFontOfSize 15  label font   UIFont systemFontOfSize 17

User · Answer

I think the best way to do this - if keeping the same font that is already assigned to the UILabel  would be    using Swift   label font   label font fontWithSize 20     using Swift 3   label font   label font withSize 20    Ideally I would set this in the viewDidLayoutSubviews method  as it doesn t need to change every time the view appears

User · Answer

Programmatically  label font   UIFont systemFont ofSize  20 0  label font   UIFont boldSystemFont ofSize  20 0  label font   UIFont italicSystemFont ofSize  20 0   label font   UIFont name  Helvetica Neue   size  20 0   Set your font name here   Through Story board  To display multiple lines set 0 Zero   this will display more than one line in your label   If you want to display only 2 lines set 2     If you want to set minimum font size for label Click Autoshrink and Select Minimum Font Size option  See below screens    Here set minimum font size  EX  9  In this image   If your label get more text at that time your label text will be shrink upto 9

User · Answer

Swift 4 2  myLabel font   UIFont systemFont ofSize  12

User · Answer

In swift3   suppose your UILable name is myLable and you want to change its font size do this  myLable font   UIFont systemFont ofSize  10

User · Answer

In case you want to use custom font with bold option   nameLabel font   UIFont name   GillSans-Bold   size  27

User · Answer

In Swift 3 again     myLabel font   myLabel font withSize 18

User · Answer

label font   UIFont systemFontOfSize 20

User · Answer

I used fontWithSize for a label with light system font  but it changes back to normal system font    If you want to keep the font s traits  better to include the descriptors   label font   UIFont descriptor  label font fontDescriptor    size  16 0

User · Answer

Swift 3 1  import UIKit  extension UILabel       var fontSize  CGFloat           get               return self font pointSize                   set               self font    UIFont name  self font fontName  size  newValue               self sizeToFit

User · Answer

Swift 3  label font withSize 16

User · Answer

Swift-3 1  label font   UIFont systemFont ofSize  12

User · Answer

You can give like this also  labelName font   UIFont name   systemFont   size  30

User · Answer

It s very easy and convenient to change font size from storyboard  and you can instantly see the result of the change   Actually  it s also very easy to change other font attributes on storyboard too  like style  font family  etc

User · Answer

SWIFT 3 1  Label font   Label font withSize NewValue

User · Answer

swift 4   label font   UIFont  your font name   size  15    also if you want to set the label font in all views in your project try this in appDelegate gt didFinishLaunch  UILabel appearance   font   UIFont  your font name   size  15

User · Answer

If you want just change size of your font i create this extension     Add extension  extension UILabel       func setSizeFont  sizeFont  Double            self font    UIFont name  self font fontName  size  sizeFont           self sizeToFit               Use  myLabel setSizeFont 60

User · Answer

You can do it like this   label font   UIFont name  label font fontName  size  20    Or like this   label font   label font withSize 20    This will use the same font  20 can be whatever size you want of course   Note  The latter option will overwrite the current font weight to regular so if you want to preserve the font weight use the first option   Swift 3 Update   label font   label font withSize 20    Swift 4 Update   label font   label font withSize 20    or  label font   UIFont name  fontname   size  20 0    and if you use the system fonts  label font   UIFont systemFont ofSize  20 0  label font   UIFont boldSystemFont ofSize  20 0  label font   UIFont italicSystemFont ofSize  20 0

User · Answer

Apple keep changing things for no reason  Swift 4    myLabel font   UIFont systemFont ofSize  16    thanks apple for wasting people time to figure out what  font size  methods they need to use

User · Answer

You can use an extension   import UIKit  extension UILabel        func sizeFont   size  CGFloat            self font   self font withSize size            To use it   self myLabel fontSize 100

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