UILabel with text of two different colors

Question

I want to display a string like this in a UILabel      There are 5 results    Where the number 5 is red in color and the rest of the string is black   How can I do this in code

User · Answer

JTAttributedLabel  by mystcolor  lets you use the attributed string support in UILabel under iOS 6 and at the same time its JTAttributedLabel class under iOS 5 through its JTAutoLabel

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NSString  myString     I have to replace text  Dr Andrew Murphy  John Smith     NSString  myString     Not a member signin      Create mutable string from original one NSMutableAttributedString  attString     NSMutableAttributedString alloc  initWithString myString      Fing range of the string you want to change colour   If you need to change colour in more that one place just repeat it NSRange range    myString rangeOfString   signin     attString addAttribute NSForegroundColorAttributeName value  UIColor colorWithRed  63 255 0  green  163 255 0  blue  158 255 0  alpha 1 0  range range      Add it to the label - notice its not text property but it s attributeText  label attributedText   attString

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Swift 4     An attributed string extension to achieve colors on text  extension NSMutableAttributedString        func setColor color  UIColor  forText stringValue  String           let range  NSRange   self mutableString range of  stringValue  options   caseInsensitive         self addAttribute NSAttributedStringKey foregroundColor  value  color  range  range               Try it with label let label   UILabel   label frame   CGRect x  70  y  100  width  260  height  30  let stringValue    There are 5 results   let attributedString  NSMutableAttributedString   NSMutableAttributedString string  stringValue  attributedString setColor color  UIColor red  forText   5   label font   UIFont systemFont ofSize  26  label attributedText   attributedString self view addSubview label    Result     Swift 3  func setColoredLabel             var string  NSMutableAttributedString   NSMutableAttributedString string   redgreenblue           string setColor color  UIColor redColor    forText   red           string setColor color  UIColor greenColor    forText   green           string setColor color  UIColor blueColor   forText   blue           mylabel attributedText   string         func setColor color  UIColor  forText stringValue  String            var range  NSRange   self mutableString rangeOfString stringValue  options  NSCaseInsensitiveSearch          if range    nil               self addAttribute NSForegroundColorAttributeName  value  color  range  range                    Result

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extension UILabel       func setSubTextColor pSubString   String  pColor   UIColor             let attributedString  NSMutableAttributedString   self attributedText    nil   NSMutableAttributedString attributedString  self attributedText     NSMutableAttributedString string  self text              let range   attributedString mutableString range of  pSubString  options NSString CompareOptions caseInsensitive          if range location    NSNotFound               attributedString addAttribute NSForegroundColorAttributeName  value  pColor  range  range                     self attributedText   attributedString

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My answer has also the option to color all the occurrence of a text not only one occurrence of it    wa ba wa ba dubdub    you can color all the occurrence of wa not only the first occurrence like the accepted answer    extension NSMutableAttributedString      func setColorForText   textToFind  String  with color  UIColor            let range   self mutableString range of  textToFind  options   caseInsensitive          if range location    NSNotFound               addAttribute NSForegroundColorAttributeName  value  color  range  range                       func setColorForAllOccuranceOfText   textToFind  String  with color  UIColor            let inputLength   self string count         let searchLength   textToFind count         var range   NSRange location  0  length  self length           while  range location    NSNotFound                range    self string as NSString  range of  textToFind  options      range  range              if  range location    NSNotFound                    self addAttribute NSForegroundColorAttributeName  value  color  range  NSRange location  range location  length  searchLength                   range   NSRange location  range location   range length  length  inputLength -  range location   range length                                     Now you can do this     let message   NSMutableAttributedString string   wa ba wa ba dubdub   message setColorForText subtitle  with  UIColor red      or the below one if you want all the occurrence to be colored  message setColorForAllOccuranceOfText  wa   with  UIColor red      then you set this attributed string to your label   lblMessage attributedText   message

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SwiftRichString works perfect  You can use   to concatenate two attributed string

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Swift 4 and above  Inspired by anoop4real s solution  here s a String extension that can be used to generate text with 2 different colors   extension String        func attributedStringForPartiallyColoredText   textToFind  String  with color  UIColor  - gt  NSMutableAttributedString           let mutableAttributedstring   NSMutableAttributedString string  self          let range   mutableAttributedstring mutableString range of  textToFind  options   caseInsensitive          if range location    NSNotFound               mutableAttributedstring addAttribute NSAttributedStringKey foregroundColor  value  color  range  range                    return mutableAttributedstring           Following example changes color of asterisk to red while retaining original label color for remaining text   label attributedText    Enter username    attributedStringForPartiallyColoredText      with   colorLiteral red  1  green  0  blue  0  alpha  1

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By using below code you can set multiple colors based on word   NSMutableArray   array     NSMutableArray alloc  initWithObjects   1 ball    2 ball    3 ball    4 ball   nil       NSMutableAttributedString  attStr     NSMutableAttributedString alloc  init   for  NSString   str in array         NSMutableAttributedString   textstr     NSMutableAttributedString alloc  initWithString  NSString stringWithFormat         str  attributes   NSForegroundColorAttributeName   self getRandomColor           attStr appendAttributedString textstr       UILabel  lab     UILabel alloc  initWithFrame CGRectMake 10  300  300  30    lab attributedText   attStr   self view addSubview lab    - UIColor    getRandomColor      CGFloat redcolor   arc4random     255   255 0     CGFloat greencolor   arc4random     255   255 0     CGFloat bluencolor   arc4random     255   255 0     return   UIColor colorWithRed redcolor green greencolor blue bluencolor alpha 1 0

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I have done this by creating a category for NSMutableAttributedString  - void setColorForText  NSString   textToFind withColor  UIColor   color       NSRange range    self mutableString rangeOfString textToFind options NSCaseInsensitiveSearch        if  range location    NSNotFound             self addAttribute NSForegroundColorAttributeName value color range range             Use it like  -  void  setColoredLabel       NSMutableAttributedString  string     NSMutableAttributedString alloc  initWithString   Here is a red blue and green text         string setColorForText   red  withColor  UIColor redColor         string setColorForText   blue  withColor  UIColor blueColor         string setColorForText   green  withColor  UIColor greenColor        mylabel attributedText   string      SWIFT 3  extension NSMutableAttributedString      func setColorForText   textToFind  String  with color  UIColor            let range   self mutableString range of  textToFind  options   caseInsensitive          if range location    NSNotFound               addAttribute NSForegroundColorAttributeName  value  color  range  range                      USAGE  func setColoredLabel         let string   NSMutableAttributedString string   Here is a red blue and green text       string setColorForText  red   with   colorLiteral red  0 9254902005  green  0 2352941185  blue  0 1019607857  alpha  1       string setColorForText  blue   with   colorLiteral red  0 2392156869  green  0 6745098233  blue  0 9686274529  alpha  1       string setColorForText  green   with   colorLiteral red  0 3411764801  green  0 6235294342  blue  0 1686274558  alpha  1       mylabel attributedText   string     SWIFT 4  kj13 Thanks for notifying     If no text is send  then the style will be applied to full text func setColorForText   textToFind  String   with color  UIColor         let range NSRange      if let text   textToFind          range   self mutableString range of  text  options   caseInsensitive       else          range   NSMakeRange 0  self length            if range  location    NSNotFound           addAttribute NSAttributedStringKey foregroundColor  value  color  range  range             I have did more experiments with attributes and below are the results  here is the SOURCECODE  Here is the result

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Anups answer in swift  Can be reused from any class   In swift file  extension NSMutableAttributedString        func setColorForStr textToFind  String  color  UIColor             let range   self mutableString rangeOfString textToFind  options NSStringCompareOptions CaseInsensitiveSearch           if range location    NSNotFound               self addAttribute NSForegroundColorAttributeName  value  color  range  range                        In Some view controller  let attributedString  NSMutableAttributedString   NSMutableAttributedString string  self labelShopInYourNetwork text    attributedString setColorForStr  YOUR NETWORK   color  UIColor red  0 039  green  0 020  blue  0 490  alpha  1 0    self labelShopInYourNetwork attributedText   attributedString

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There is a Swift 3 0 solution   extension UILabel        func setSubTextColor pSubString   String  pColor   UIColor           let attributedString  NSMutableAttributedString   NSMutableAttributedString string  self text            let range   attributedString mutableString range of  pSubString  options NSString CompareOptions caseInsensitive          if range location    NSNotFound               attributedString addAttribute NSForegroundColorAttributeName  value  pColor  range  range                     self attributedText   attributedString            And there is an example of call    let colorString      string in red   self mLabel text    classic color    colorString self mLabel setSubTextColor pSubString  colorString  pColor  UIColor red

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NSAttributedString is the way to go  The following question has a great answer that shows you how to do it How do you use NSAttributedString

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Since iOS 6  UIKit supports drawing attributed strings  so no extension or replacement is needed   From UILabel    property nonatomic  copy  NSAttributedString  attributedText    You just need to build up your NSAttributedString  There are basically two ways    Append chunks of text with the same attributes - for each part create one NSAttributedString instance and append them to one NSMutableAttributedString Create attributed text from plain string and then add attributed for given ranges     find the range of your number  or whatever  and apply different color attribute on that

User · Answer

For displaying short  formatted text that doesn t need to be editable  Core Text is the way to go  There are several open-source projects for labels that use NSAttributedString and Core Text for rendering  See CoreTextAttributedLabel or OHAttributedLabel for example

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Having a UIWebView or more than one UILabel could be considered overkill for this situation   My suggestion would be to use TTTAttributedLabel which is a drop-in replacement for UILabel that supports NSAttributedString  This means you can very easily apply differents styles to different ranges in a string

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In my case I m using Xcode 10 1  There is a option of switching between plain text and Attributed text in Label text in Interface Builder     Hope this may help someone else

User · Answer

The way to do it is to use NSAttributedString like this   NSMutableAttributedString  text       NSMutableAttributedString alloc      initWithAttributedString  label attributedText     text addAttribute NSForegroundColorAttributeName               value  UIColor redColor                range NSMakeRange 10  1     label setAttributedText  text     I created a UILabel extension to do it

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My own solution was created a method like the next one   - void setColorForText  NSString   textToFind originalText  NSString   originalString withColor  UIColor  color andLabel  UILabel   label   NSMutableAttributedString  attString     NSMutableAttributedString alloc  initWithString originalString   NSRange range    originalString rangeOfString textToFind     attString addAttribute NSForegroundColorAttributeName value color range range    label attributedText   attString   if  range location    NSNotFound         attString addAttribute NSForegroundColorAttributeName value color range range     label attributedText   attString      It worked with just one different color in the same text but you can adapt it easily to more colores in the same sentence

User · Answer

Here you go  NSMutableAttributedString   string     NSMutableAttributedString alloc  initWithString lblTemp text    string addAttribute NSForegroundColorAttributeName value  UIColor redColor  range NSMakeRange 0 5     string addAttribute NSForegroundColorAttributeName value  UIColor greenColor  range NSMakeRange 5 6     string addAttribute NSForegroundColorAttributeName value  UIColor blueColor  range NSMakeRange 11 5    lblTemp attributedText   string

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For Xamarin users I have a static C  method where I pass in an array of strings  an array of UIColours and array of UIFonts  they will need to match in length   The attributed string is then passed back  see  public static NSMutableAttributedString GetFormattedText string   texts  UIColor   colors  UIFont   fonts       NSMutableAttributedString attrString   new NSMutableAttributedString string Join  quot  quot   texts      int position   0     for  int i   0  i  lt  texts Length  i          attrString AddAttribute new NSString  quot NSForegroundColorAttributeName quot    colors i   new NSRange position  texts i  Length         var fontAttribute   new UIStringAttributes         Font   fonts I              attrString AddAttributes fontAttribute  new NSRange position  texts i  Length         position    texts i  Length         return attrString

[ios] UILabel with text of two different colors

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