How to control the line spacing in UILabel

Question

Is it possible to reduce the gap between text  when put in multiple lines in a UILabel  We can set the frame  font size and number of lines  I want to reduce the gap between the two lines in that label

User · Answer

I ve found a way where you can set the real line height  not a factor  and it even renders live in Interface Builder  Just follow the instructions below  Code is written in Swift 4     Step  1  Create a file named DesignableLabel swift and insert the following code   import UIKit   IBDesignable class DesignableLabel  UILabel        IBInspectable var lineHeight  CGFloat   20           didSet               let paragraphStyle   NSMutableParagraphStyle               paragraphStyle minimumLineHeight   lineHeight             paragraphStyle maximumLineHeight   lineHeight             paragraphStyle alignment   self textAlignment              let attrString   NSMutableAttributedString string  text               attrString addAttribute NSAttributedStringKey font  value  font  range  NSRange location  0  length  attrString length               attrString addAttribute NSAttributedStringKey paragraphStyle  value  paragraphStyle  range  NSRange location  0  length  attrString length               attributedText   attrString                       Step  2  Place a UILabel into a Storyboard XIB and set its class to DesignableLabel  Wait for your project to build  build must succeed         Step 3  Now you should see a new property in the properties pane named  Line Height   Just set the value you like and you should see the results immediately

User · Answer

Swift3 - In a UITextView or UILabel extension  add this function   I added some code to keep the current attributed text if you are already using attributed strings with the view  instead of overwriting them    func setLineHeight   lineHeight  CGFloat        guard let text   self text  let font   self font else   return        let paragraphStyle   NSMutableParagraphStyle       paragraphStyle lineSpacing   1 0     paragraphStyle lineHeightMultiple   lineHeight     paragraphStyle alignment   self textAlignment      var attrString NSMutableAttributedString     if let attributed   self attributedText           attrString   NSMutableAttributedString attributedString  attributed        else           attrString   NSMutableAttributedString string  text          attrString addAttribute NSFontAttributeName  value  font  range  NSMakeRange 0  attrString length             attrString addAttribute NSParagraphStyleAttributeName  value paragraphStyle  range NSMakeRange 0  attrString length       self attributedText   attrString

User · Answer

Swift 4 label extension  Creating NSMutableAttributedString before passing into function in case there are extra attributes required for the attributed text   extension UILabel        func setLineHeightMultiple to height  CGFloat  withAttributedText attributedText  NSMutableAttributedString             let paragraphStyle   NSMutableParagraphStyle           paragraphStyle lineSpacing   1 0         paragraphStyle lineHeightMultiple   height         paragraphStyle alignment   textAlignment          attributedText addAttribute  paragraphStyle  value  paragraphStyle  range  NSRange location  0  length  attributedText length - 1            self attributedText   attributedText

User · Answer

In Swift 2 0     Add an extension    extension UIView       func attributesWithLineHeight font  String  color  UIColor  fontSize  CGFloat  kern  Double  lineHeightMultiple  CGFloat  - gt   String  NSObject            let titleParagraphStyle   NSMutableParagraphStyle           titleParagraphStyle lineHeightMultiple   lineHeightMultiple          let attribute                 NSForegroundColorAttributeName  color              NSKernAttributeName  kern              NSFontAttributeName   UIFont name  font  size  fontSize                NSParagraphStyleAttributeName  titleParagraphStyle                   return attribute           Now  just set your UILabel as attributedText    self label attributedText   NSMutableAttributedString string   SwiftExample   attributes  attributesWithLineHeight  SourceSans-Regular   color  UIColor whiteColor    fontSize  20  kern  2 0  lineHeightMultiple  0 5         Obviously  I added a bunch of parameters that you may not need  Play around -- feel free to rewrite the method -- I was looking for this on a bunch of different answers so figured I d post the whole extension in case it helps someone out there     -rab

User · Answer

This should help with it  You can then assign your label to this custom class within the storyboard and use it s parameters directly within the properties   open class SpacingLabel   UILabel         IBInspectable open var lineHeight CGFloat   1           didSet               let paragraphStyle   NSMutableParagraphStyle               paragraphStyle lineSpacing   1 0             paragraphStyle lineHeightMultiple   self lineHeight             paragraphStyle alignment   self textAlignment              let attrString   NSMutableAttributedString string  self text               attrString addAttribute NSAttributedStringKey font  value  self font  range  NSMakeRange 0  attrString length               attrString addAttribute NSAttributedStringKey paragraphStyle  value paragraphStyle  range NSMakeRange 0  attrString length               self attributedText   attrString

User · Answer

I ve made this simple extension that works very well for me   extension UILabel       func setLineHeight lineHeight  CGFloat            let paragraphStyle   NSMutableParagraphStyle           paragraphStyle lineSpacing   1 0         paragraphStyle lineHeightMultiple   lineHeight         paragraphStyle alignment   self textAlignment          let attrString   NSMutableAttributedString           if  self attributedText    nil                attrString append  self attributedText             else               attrString append  NSMutableAttributedString string  self text                attrString addAttribute NSAttributedStringKey font  value  self font  range  NSMakeRange 0  attrString length                     attrString addAttribute NSAttributedStringKey paragraphStyle  value paragraphStyle  range NSMakeRange 0  attrString length           self attributedText   attrString           Copy this in a file  so then you can use it like this  myLabel setLineHeight 0 7

User · Answer

According  Mike  s Answer  reducing the lineHeightMultiple is the key point  Example below  it work well for me  NSString  text   label text  CGFloat textWidth    text sizeWithAttributes   NSFontAttributeName  label font   width  if  textWidth  gt  label frame size width      NSMutableParagraphStyle  paragraph     NSMutableParagraphStyle alloc  init     paragraph alignment   NSTextAlignmentCenter    paragraph lineSpacing   1 0f    paragraph lineHeightMultiple   0 75         Reduce this value       NSMutableAttributedString  attrText     NSMutableAttributedString alloc  initWithString text      attrText addAttribute NSParagraphStyleAttributeName value paragraph range NSMakeRange 0  text length      label attributedText   attrText

User · Answer

The solutions stated here didn t work for me  I found a slightly different way to do it with the iOS 6 NSAttributeString   myLabel numberOfLines   0   NSString  string     String with line one   n Line two   n Line three    NSMutableParagraphStyle  style      NSMutableParagraphStyle alloc  init   style minimumLineHeight   30 f  style maximumLineHeight   30 f  NSDictionary  attributtes     NSParagraphStyleAttributeName   style    myLabel attributedText     NSAttributedString alloc  initWithString string                                                          attributes attributtes       myLabel sizeToFit

User · Answer

This code worked for me  ios 7  amp  ios 8  for sure     label numberOfLines 2   label textColor  UIColor whiteColor    NSMutableParagraphStyle  paragraphStyle     NSMutableParagraphStyle alloc  init   paragraphStyle lineHeightMultiple 0 5  paragraphStyle alignment   NSTextAlignmentCenter  paragraphStyle lineSpacing   1 0   NSDictionary  nameAttributes                                   NSParagraphStyleAttributeName   paragraphStyle                                 NSBaselineOffsetAttributeName  2 0                                     NSAttributedString  string   NSAttributedString alloc  initWithString   22m nago  attributes nameAttributes    label attributedText string

User · Answer

Swift 3 extension  import UIKit      extension UILabel     func setTextWithLineSpacing text  String  lineHeightMultiply  CGFloat   1 3        let paragraphStyle   NSMutableParagraphStyle       paragraphStyle lineHeightMultiple   lineHeightMultiply     paragraphStyle alignment    center     let attributedString   NSMutableAttributedString string  text      attributedString addAttribute NSParagraphStyleAttributeName  value  paragraphStyle  range  NSRange location  0  length  attributedString length       self attributedText   attributedString

User · Answer

Starting from iOS 6 you can set an attributed string to the UILabel  Check the following     NSMutableAttributedString  attributedString     NSMutableAttributedString alloc  initWithString label text   NSMutableParagraphStyle  paragraphStyle     NSMutableParagraphStyle alloc  init   paragraphStyle lineSpacing   spacing   attributedString addAttribute NSParagraphStyleAttributeName value paragraphStyle range NSMakeRange 0  label text length     label attributedText   attributedString

User · Answer

There s an alternative answer now in iOS 6  which is to set attributedText on the label  using an NSAttributedString with the appropriate paragraph styles  See this stack overflow answer for details on line height with NSAttributedString   Core Text - NSAttributedString line height done right

User · Answer

Here is a class that subclass UILabel to have line-height property   https   github com LemonCake MSLabel

User · Answer

In Swift and as a function  inspired by DarkDust     Usage  setTextWithLineSpacing myEpicUILabel text  Hello  lineSpacing 20  func setTextWithLineSpacing label UILabel text String lineSpacing CGFloat        let paragraphStyle   NSMutableParagraphStyle       paragraphStyle lineSpacing   lineSpacing      let attrString   NSMutableAttributedString string  text      attrString addAttribute NSAttributedString Key paragraphStyle  value paragraphStyle  range NSMakeRange 0  attrString length        label attributedText   attrString

User · Answer

SWIFT 3 useful extension for set space between lines more easily     extension UILabel       func setLineHeight lineHeight  CGFloat                let text   self text         if let text   text                         let attributeString   NSMutableAttributedString string  text              let style   NSMutableParagraphStyle               style lineSpacing   lineHeight            attributeString addAttribute NSParagraphStyleAttributeName                                          value  style                                          range  NSMakeRange 0  text characters count               self attributedText   attributeString

User · Answer

I thought about adding something new to this answer  so I don t feel as bad    Here is a Swift answer   import Cocoa  let paragraphStyle   NSMutableParagraphStyle   paragraphStyle lineSpacing   40  let attrString   NSMutableAttributedString string   Swift Answer   attrString addAttribute  paragraphStyle  value paragraphStyle  range NSMakeRange 0  attrString length    var tableViewCell   NSTableCellView   tableViewCell textField attributedStringValue   attrString      Short answer  you can t  To change the spacing between lines of text  you will have to subclass UILabel and roll your own drawTextInRect  or create multiple labels    See  Set UILabel line spacing    This is a really old answer  and other have already addded the new and better way to handle this   Please see the up to date answers provided below

User · Answer

As a quick-dirty-smart-simple workaround   For UILabels that don t have much lines you can instead use stackViews    For each line write a new label  Embed them into a StackView  select both labels-- Editor-- Embed In -- StackView Adjust the Spacing of the StackView to your desired amount   Be sure to stack them vertically  This solution also works for custom fonts

User · Answer

Here is a subclass of UILabel that sets lineHeightMultiple and makes sure the intrinsic height is large enough to not cut off text    IBDesignable class Label  UILabel       override var intrinsicContentSize  CGSize           var size   super intrinsicContentSize         let padding    1 0 - lineHeightMultiple    font pointSize         size height    padding         return size            override var text  String            didSet               updateAttributedText                         IBInspectable var lineHeightMultiple  CGFloat   1 0           didSet               updateAttributedText                        private func updateAttributedText             let paragraphStyle   NSMutableParagraphStyle           paragraphStyle lineHeightMultiple   lineHeightMultiple         attributedText   NSAttributedString string  text        attributes                 font  font               paragraphStyle  paragraphStyle               foregroundColor  textColor                    invalidateIntrinsicContentSize

User · Answer

Here is my solution in swift  The subclass should work for both attributedText and text property and for characterSpacing   lineSpacing  It retains the spacing if a new string or attributedString is set   open class UHBCustomLabel   UILabel        IBInspectable open var characterSpacing CGFloat   1           didSet               updateWithSpacing                         IBInspectable open var lines spacing CGFloat   -1           didSet               updateWithSpacing                        open override var text  String            set               super text   newValue             updateWithSpacing                     get               return super text                     open override var attributedText  NSAttributedString            set               super attributedText   newValue             updateWithSpacing                      get               return super attributedText                     func updateWithSpacing             let attributedString   self attributedText    nil   NSMutableAttributedString string  self text          NSMutableAttributedString attributedString  attributedText           attributedString addAttribute NSKernAttributeName  value  self characterSpacing  range  NSRange location  0  length  attributedString length           if lines spacing  gt   0               let paragraphStyle   NSMutableParagraphStyle               paragraphStyle lineSpacing   lines spacing             paragraphStyle alignment   textAlignment             attributedString addAttribute NSParagraphStyleAttributeName  value paragraphStyle  range NSMakeRange 0  attributedString length                     super attributedText   attributedString

User · Answer

Another answer    If you re passing the string programmatically  you need to pass a attributed string instead a regular string and change it s style  iOS10   NSMutableAttributedString   attrString     NSMutableAttributedString alloc  initWithString   Your  nregular  nstring    NSMutableParagraphStyle  style     NSMutableParagraphStyle alloc  init    style setLineSpacing 4    attrString addAttribute NSParagraphStyleAttributeName                    value style                    range NSMakeRange 0  attrString length     label attributedText   attrString

User · Answer

In Xcode 6 you can do this in the storyboard

User · Answer

From Interface Builder  Storyboard XIB      Programmatically   SWift 4  Using label extension  extension UILabel           Pass value for any one of both parameters and see result     func setLineSpacing lineSpacing  CGFloat   0 0  lineHeightMultiple  CGFloat   0 0             guard let labelText   self text else   return            let paragraphStyle   NSMutableParagraphStyle           paragraphStyle lineSpacing   lineSpacing         paragraphStyle lineHeightMultiple   lineHeightMultiple          let attributedString NSMutableAttributedString         if let labelattributedText   self attributedText               attributedString   NSMutableAttributedString attributedString  labelattributedText            else               attributedString   NSMutableAttributedString string  labelText                        Line spacing attribute         attributedString addAttribute NSAttributedStringKey paragraphStyle  value paragraphStyle  range NSMakeRange 0  attributedString length            self attributedText   attributedString           Now call extension function  let label   UILabel   let stringValue    How to ncontrol nthe nline spacing nin UILabel      Pass value for any one argument - lineSpacing or lineHeightMultiple label setLineSpacing lineSpacing  2 0        try values 1 0 to 5 0     or try lineHeightMultiple   label setLineSpacing lineHeightMultiple   2 0     try values 0 5 to 2 0   Or using label instance  Just copy  amp  execute this code to see result   let label   UILabel   let stringValue    How to ncontrol nthe nline spacing nin UILabel  let attrString   NSMutableAttributedString string  stringValue  var style   NSMutableParagraphStyle   style lineSpacing   24    change line spacing between paragraph like 36 or 48 style minimumLineHeight   20    change line spacing between each line like 30 or 40     Line spacing attribute attrString addAttribute NSAttributedStringKey paragraphStyle  value  style  range  NSRange location  0  length  stringValue characters count       Character spacing attribute attrString addAttribute NSAttributedStringKey kern  value  2  range  NSMakeRange 0  attrString length    label attributedText   attrString   Swift 3  let label   UILabel   let stringValue    How to ncontrol nthe nline spacing nin UILabel  let attrString   NSMutableAttributedString string  stringValue  var style   NSMutableParagraphStyle   style lineSpacing   24    change line spacing between paragraph like 36 or 48 style minimumLineHeight   20    change line spacing between each line like 30 or 40 attrString addAttribute NSParagraphStyleAttributeName  value  style  range  NSRange location  0  length  stringValue characters count   label attributedText   attrString

[objective-c] How to control the line spacing in UILabel

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