How do you use NSAttributedString?
IosIos4NsattributedstringTextcolorIos Problem Overview
Multiple colours in an NSString or NSMutableStrings are not possible. So I've heard a little about the NSAttributedString which was introduced with the iPad SDK 3.2 (or around 3.2) and is available on the iPhone as of iPhone SDK 4.0 beta.
I would like to have a string that has three colours.
The reason I don't use 3 separate NSStrings, is because the length of each of the three NSAttributedString substrings changes often and so I would prefer, not to use any calculations to re-position 3 separate NSString objects.
If it's possible using NSAttributedString how do I make the following - (if not possible with NSAttributed string how would you do it):
Edit:
Remember, @"first", @"second" and @"third" will be replaced by other strings at any time. So using hardcoded NSRange values won't work.
Ios Solutions
Solution 1 - Ios
When building attributed strings, I prefer to use the mutable subclass, just to keep things cleaner.
That being said, here's how you create a tri-color attributed string:
NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@"firstsecondthird"];
[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)];
typed in a browser. caveat implementor
Obviously you're not going to hard-code in the ranges like this. Perhaps instead you could do something like:
NSDictionary *wordToColorMapping = ....; //an NSDictionary of NSString => UIColor pairs
NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:@""];
for (NSString *word in wordToColorMapping) {
UIColor *color = [wordToColorMapping objectForKey:word];
NSDictionary *attributes = [NSDictionary dictionaryWithObject:color forKey:NSForegroundColorAttributeName];
NSAttributedString *subString = [[NSAttributedString alloc] initWithString:word attributes:attributes];
[string appendAttributedString:subString];
[subString release];
}
//display string
Solution 2 - Ios
The question is already answered... but I wanted to show how to add shadow and change the font with NSAttributedString as well, so that when people search for this topic they won't have to keep looking.
#define FONT_SIZE 20
#define FONT_HELVETICA @"Helvetica-Light"
#define BLACK_SHADOW [UIColor colorWithRed:40.0f/255.0f green:40.0f/255.0f blue:40.0f/255.0f alpha:0.4f]
NSString*myNSString = @"This is my string.\nIt goes to a second line.";
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
paragraphStyle.alignment = NSTextAlignmentCenter;
paragraphStyle.lineSpacing = FONT_SIZE/2;
UIFont * labelFont = [UIFont fontWithName:FONT_HELVETICA size:FONT_SIZE];
UIColor * labelColor = [UIColor colorWithWhite:1 alpha:1];
NSShadow *shadow = [[NSShadow alloc] init];
[shadow setShadowColor : BLACK_SHADOW];
[shadow setShadowOffset : CGSizeMake (1.0, 1.0)];
[shadow setShadowBlurRadius : 1];
NSAttributedString *labelText = [[NSAttributedString alloc] initWithString : myNSString
attributes : @{
NSParagraphStyleAttributeName : paragraphStyle,
NSKernAttributeName : @2.0,
NSFontAttributeName : labelFont,
NSForegroundColorAttributeName : labelColor,
NSShadowAttributeName : shadow }];
Here is a Swift version...
Warning! This works for 4s.
For 5s you have to change all of the the Float values to Double values (because the compiler isn't working correctly yet)
Swift enum for font choice:
enum FontValue: Int {
case FVBold = 1 , FVCondensedBlack, FVMedium, FVHelveticaNeue, FVLight, FVCondensedBold, FVLightItalic, FVUltraLightItalic, FVUltraLight, FVBoldItalic, FVItalic
}
Swift array for enum access (needed because enum can't use '-'):
func helveticaFont (index:Int) -> (String) {
let fontArray = [
"HelveticaNeue-Bold",
"HelveticaNeue-CondensedBlack",
"HelveticaNeue-Medium",
"HelveticaNeue",
"HelveticaNeue-Light",
"HelveticaNeue-CondensedBold",
"HelveticaNeue-LightItalic",
"HelveticaNeue-UltraLightItalic",
"HelveticaNeue-UltraLight",
"HelveticaNeue-BoldItalic",
"HelveticaNeue-Italic",
]
return fontArray[index]
}
Swift attributed text function:
func myAttributedText (myString:String, mySize: Float, myFont:FontValue) -> (NSMutableAttributedString) {
let shadow = NSShadow()
shadow.shadowColor = UIColor.textShadowColor()
shadow.shadowOffset = CGSizeMake (1.0, 1.0)
shadow.shadowBlurRadius = 1
let paragraphStyle = NSMutableParagraphStyle.alloc()
paragraphStyle.lineHeightMultiple = 1
paragraphStyle.lineBreakMode = NSLineBreakMode.ByWordWrapping
paragraphStyle.alignment = NSTextAlignment.Center
let labelFont = UIFont(name: helveticaFont(myFont.toRaw()), size: mySize)
let labelColor = UIColor.whiteColor()
let myAttributes :Dictionary = [NSParagraphStyleAttributeName : paragraphStyle,
NSKernAttributeName : 3, // (-1,5)
NSFontAttributeName : labelFont,
NSForegroundColorAttributeName : labelColor,
NSShadowAttributeName : shadow]
let myAttributedString = NSMutableAttributedString (string: myString, attributes:myAttributes)
// add new color
let secondColor = UIColor.blackColor()
let stringArray = myString.componentsSeparatedByString(" ")
let firstString: String? = stringArray.first
let letterCount = countElements(firstString!)
if firstString {
myAttributedString.addAttributes([NSForegroundColorAttributeName:secondColor], range:NSMakeRange(0,letterCount))
}
return myAttributedString
}
first and last extension used for finding ranges in a string array:
extension Array {
var last: T? {
if self.isEmpty {
NSLog("array crash error - please fix")
return self [0]
} else {
return self[self.endIndex - 1]
}
}
}
extension Array {
var first: T? {
if self.isEmpty {
NSLog("array crash error - please fix")
return self [0]
} else {
return self [0]
}
}
}
new colors:
extension UIColor {
class func shadowColor() -> UIColor {
return UIColor(red: 0.0/255.0, green: 0.0/255.0, blue: 0.0/255.0, alpha: 0.3)
}
class func textShadowColor() -> UIColor {
return UIColor(red: 50.0/255.0, green: 50.0/255.0, blue: 50.0/255.0, alpha: 0.5)
}
class func pastelBlueColor() -> UIColor {
return UIColor(red: 176.0/255.0, green: 186.0/255.0, blue: 255.0/255.0, alpha: 1)
}
class func pastelYellowColor() -> UIColor {
return UIColor(red: 255.0/255.0, green: 238.0/255.0, blue: 140.0/255.0, alpha: 1)
}
}
my macro replacement:
enum MyConstants: Float {
case CornerRadius = 5.0
}
my button maker w/attributed text:
func myButtonMaker (myView:UIView) -> UIButton {
let myButton = UIButton.buttonWithType(.System) as UIButton
myButton.backgroundColor = UIColor.pastelBlueColor()
myButton.showsTouchWhenHighlighted = true;
let myCGSize:CGSize = CGSizeMake(100.0, 50.0)
let myFrame = CGRectMake(myView.frame.midX - myCGSize.height,myView.frame.midY - 2 * myCGSize.height,myCGSize.width,myCGSize.height)
myButton.frame = myFrame
let myTitle = myAttributedText("Button",20.0,FontValue.FVLight)
myButton.setAttributedTitle(myTitle, forState:.Normal)
myButton.layer.cornerRadius = myButton.bounds.size.width / MyConstants.CornerRadius.toRaw()
myButton.setTitleColor(UIColor.whiteColor(), forState: .Normal)
myButton.tag = 100
myButton.bringSubviewToFront(myView)
myButton.layerGradient()
myView.addSubview(myButton)
return myButton
}
my UIView/UILabel maker w/attributed text, shadow, and round corners:
func myLabelMaker (myView:UIView) -> UIView {
let myFrame = CGRectMake(myView.frame.midX / 2 , myView.frame.midY / 2, myView.frame.width/2, myView.frame.height/2)
let mylabelFrame = CGRectMake(0, 0, myView.frame.width/2, myView.frame.height/2)
let myBaseView = UIView()
myBaseView.frame = myFrame
myBaseView.backgroundColor = UIColor.clearColor()
let myLabel = UILabel()
myLabel.backgroundColor=UIColor.pastelYellowColor()
myLabel.frame = mylabelFrame
myLabel.attributedText = myAttributedText("This is my String",20.0,FontValue.FVLight)
myLabel.numberOfLines = 5
myLabel.tag = 100
myLabel.layer.cornerRadius = myLabel.bounds.size.width / MyConstants.CornerRadius.toRaw()
myLabel.clipsToBounds = true
myLabel.layerborders()
myBaseView.addSubview(myLabel)
myBaseView.layerShadow()
myBaseView.layerGradient()
myView.addSubview(myBaseView)
return myLabel
}
generic shadow add:
func viewshadow<T where T: UIView> (shadowObject: T)
{
let layer = shadowObject.layer
let radius = shadowObject.frame.size.width / MyConstants.CornerRadius.toRaw();
layer.borderColor = UIColor.whiteColor().CGColor
layer.borderWidth = 0.8
layer.cornerRadius = radius
layer.shadowOpacity = 1
layer.shadowRadius = 3
layer.shadowOffset = CGSizeMake(2.0,2.0)
layer.shadowColor = UIColor.shadowColor().CGColor
}
view extension for view style:
extension UIView {
func layerborders() {
let layer = self.layer
let frame = self.frame
let myColor = self.backgroundColor
layer.borderColor = myColor.CGColor
layer.borderWidth = 10.8
layer.cornerRadius = layer.borderWidth / MyConstants.CornerRadius.toRaw()
}
func layerShadow() {
let layer = self.layer
let frame = self.frame
layer.cornerRadius = layer.borderWidth / MyConstants.CornerRadius.toRaw()
layer.shadowOpacity = 1
layer.shadowRadius = 3
layer.shadowOffset = CGSizeMake(2.0,2.0)
layer.shadowColor = UIColor.shadowColor().CGColor
}
func layerGradient() {
let layer = CAGradientLayer()
let size = self.frame.size
layer.frame.size = size
layer.frame.origin = CGPointMake(0.0,0.0)
layer.cornerRadius = layer.bounds.size.width / MyConstants.CornerRadius.toRaw();
var color0 = CGColorCreateGenericRGB(250.0/255, 250.0/255, 250.0/255, 0.5)
var color1 = CGColorCreateGenericRGB(200.0/255, 200.0/255, 200.0/255, 0.1)
var color2 = CGColorCreateGenericRGB(150.0/255, 150.0/255, 150.0/255, 0.1)
var color3 = CGColorCreateGenericRGB(100.0/255, 100.0/255, 100.0/255, 0.1)
var color4 = CGColorCreateGenericRGB(50.0/255, 50.0/255, 50.0/255, 0.1)
var color5 = CGColorCreateGenericRGB(0.0/255, 0.0/255, 0.0/255, 0.1)
var color6 = CGColorCreateGenericRGB(150.0/255, 150.0/255, 150.0/255, 0.1)
layer.colors = [color0,color1,color2,color3,color4,color5,color6]
self.layer.insertSublayer(layer, atIndex: 2)
}
}
the actual view did load function:
func buttonPress (sender:UIButton!) {
NSLog("%@", "ButtonPressed")
}
override func viewDidLoad() {
super.viewDidLoad()
let myLabel = myLabelMaker(myView)
let myButton = myButtonMaker(myView)
myButton.addTarget(self, action: "buttonPress:", forControlEvents:UIControlEvents.TouchUpInside)
viewshadow(myButton)
viewshadow(myLabel)
}
Solution 3 - Ios
I think, it is a very convenient way to use regular expressions to find a range for applying attributes. This is how I did it:
NSMutableAttributedString *goodText = [[NSMutableAttributedString alloc] initWithString:articleText];
NSRange range = [articleText rangeOfString:@"\\[.+?\\]" options:NSRegularExpressionSearch|NSCaseInsensitiveSearch];
if (range.location != NSNotFound) {
[goodText addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Georgia" size:16] range:range];
[goodText addAttribute:NSForegroundColorAttributeName value:[UIColor brownColor] range:range];
}
NSString *regEx = [NSString stringWithFormat:@"%@.+?\\s", [self.article.titleText substringToIndex:0]];
range = [articleText rangeOfString:regEx options:NSRegularExpressionSearch|NSCaseInsensitiveSearch];
if (range.location != NSNotFound) {
[goodText addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Georgia-Bold" size:20] range:range];
[goodText addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:range];
}
[self.textView setAttributedText:goodText];
I was searching for a list of available attributes and didn't find them here and in a class reference's first page. So I decided to post here information on that.
Attributed strings support the following standard attributes for text. If the key is not in the dictionary, then use the default values described below.
NSString *NSFontAttributeName;
NSString *NSParagraphStyleAttributeName;
NSString *NSForegroundColorAttributeName;
NSString *NSUnderlineStyleAttributeName;
NSString *NSSuperscriptAttributeName;
NSString *NSBackgroundColorAttributeName;
NSString *NSAttachmentAttributeName;
NSString *NSLigatureAttributeName;
NSString *NSBaselineOffsetAttributeName;
NSString *NSKernAttributeName;
NSString *NSLinkAttributeName;
NSString *NSStrokeWidthAttributeName;
NSString *NSStrokeColorAttributeName;
NSString *NSUnderlineColorAttributeName;
NSString *NSStrikethroughStyleAttributeName;
NSString *NSStrikethroughColorAttributeName;
NSString *NSShadowAttributeName;
NSString *NSObliquenessAttributeName;
NSString *NSExpansionAttributeName;
NSString *NSCursorAttributeName;
NSString *NSToolTipAttributeName;
NSString *NSMarkedClauseSegmentAttributeName;
NSString *NSWritingDirectionAttributeName;
NSString *NSVerticalGlyphFormAttributeName;
NSString *NSTextAlternativesAttributeName;
NSAttributedString programming guide
A full class reference is here.
Solution 4 - Ios
This solution will work for any length
NSString *strFirst = @"Anylengthtext";
NSString *strSecond = @"Anylengthtext";
NSString *strThird = @"Anylengthtext";
NSString *strComplete = [NSString stringWithFormat:@"%@ %@ %@",strFirst,strSecond,strThird];
NSMutableAttributedString *attributedString =[[NSMutableAttributedString alloc] initWithString:strComplete];
[attributedString addAttribute:NSForegroundColorAttributeName
value:[UIColor redColor]
range:[strComplete rangeOfString:strFirst]];
[attributedString addAttribute:NSForegroundColorAttributeName
value:[UIColor yellowColor]
range:[strComplete rangeOfString:strSecond]];
[attributedString addAttribute:NSForegroundColorAttributeName
value:[UIColor blueColor]
range:[strComplete rangeOfString:strThird]];
self.lblName.attributedText = attributedString;
Solution 5 - Ios
I wrote helper to add attributes easily:
- (void)addColor:(UIColor *)color substring:(NSString *)substring;
- (void)addBackgroundColor:(UIColor *)color substring:(NSString *)substring;
- (void)addUnderlineForSubstring:(NSString *)substring;
- (void)addStrikeThrough:(int)thickness substring:(NSString *)substring;
- (void)addShadowColor:(UIColor *)color width:(int)width height:(int)height radius:(int)radius substring:(NSString *)substring;
- (void)addFontWithName:(NSString *)fontName size:(int)fontSize substring:(NSString *)substring;
- (void)addAlignment:(NSTextAlignment)alignment substring:(NSString *)substring;
- (void)addColorToRussianText:(UIColor *)color;
- (void)addStrokeColor:(UIColor *)color thickness:(int)thickness substring:(NSString *)substring;
- (void)addVerticalGlyph:(BOOL)glyph substring:(NSString *)substring;
https://github.com/shmidt/MASAttributes
You can install through CocoaPods also : pod 'MASAttributes', '~> 1.0.0'
Solution 6 - Ios
Since iOS 7 you can use NSAttributedString with HTML syntax:
NSURL *htmlString = [[NSBundle mainBundle] URLForResource: @"string" withExtension:@"html"];
NSAttributedString *stringWithHTMLAttributes = [[NSAttributedString alloc] initWithFileURL:htmlString
options:@{NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType}
documentAttributes:nil
error:nil];
textView.attributedText = stringWithHTMLAttributes;// you can use a label also
You have to add the file "string.html" to you project, and the content of the html can be like this:
<html>
<head>
<style type="text/css">
body {
font-size: 15px;
font-family: Avenir, Arial, sans-serif;
}
.red {
color: red;
}
.green {
color: green;
}
.blue {
color: blue;
}
</style>
</head>
<body>
<span class="red">first</span><span class="green">second</span><span class="blue">third</span>
</body>
</html>
Now, you can use NSAttributedString as you want, even without HTML file, like for example:
//At the top of your .m file
#define RED_OCCURENCE -red_occurence-
#define GREEN_OCCURENCE -green_occurence-
#define BLUE_OCCURENCE -blue_occurence-
#define HTML_TEMPLATE @"<span style=\"color:red\">-red_occurence-</span><span style=\"color:green\">-green_occurence-</span><span style=\"color:blue\">-blue_occurence-</span></body></html>"
//Where you need to use your attributed string
NSString *string = [HTML_TEMPLATE stringByReplacingOccurrencesOfString:RED_OCCURENCE withString:@"first"] ;
string = [string stringByReplacingOccurrencesOfString:GREEN_OCCURENCE withString:@"second"];
string = [string stringByReplacingOccurrencesOfString:BLUE_OCCURENCE withString:@"third"];
NSData* cData = [string dataUsingEncoding:NSUTF8StringEncoding];
NSAttributedString *stringWithHTMLAttributes = [[NSAttributedString alloc] initWithData:cData
options:@{NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType}
documentAttributes:nil
error:nil];
textView.attributedText = stringWithHTMLAttributes;
Solution 7 - Ios
I always found working with attributed strings to be an incredibly long winded and tedious process.
So I made a Mac App that creates all the code for you.
https://itunes.apple.com/us/app/attributed-string-creator/id730928349?mt=12
Solution 8 - Ios
An easier solution with attributed string extension.
extension NSMutableAttributedString {
// this function attaches color to string
func setColorForText(textToFind: String, withColor color: UIColor) {
let range: NSRange = self.mutableString.range(of: textToFind, options: .caseInsensitive)
self.addAttribute(NSAttributedStringKey.foregroundColor, value: color, range: range)
}
}
Try this and see (Tested in Swift 3 & 4)
let label = UILabel()
label.frame = CGRect(x: 120, y: 100, width: 200, height: 30)
let first = "first"
let second = "second"
let third = "third"
let stringValue = "\(first)\(second)\(third)" // or direct assign single string value like "firstsecondthird"
let attributedString: NSMutableAttributedString = NSMutableAttributedString(string: stringValue)
attributedString.setColorForText(textToFind: first, withColor: UIColor.red) // use variable for string "first"
attributedString.setColorForText(textToFind: "second", withColor: UIColor.green) // or direct string like this "second"
attributedString.setColorForText(textToFind: third, withColor: UIColor.blue)
label.font = UIFont.systemFont(ofSize: 26)
label.attributedText = attributedString
self.view.addSubview(label)
Here is expected result:
Solution 9 - Ios
In Swift 4:
let string:NSMutableAttributedString = {
let mutableString = NSMutableAttributedString(string: "firstsecondthird")
mutableString.addAttribute(NSForegroundColorAttributeName, value: UIColor.red , range: NSRange(location: 0, length: 5))
mutableString.addAttribute(NSForegroundColorAttributeName, value: UIColor.green , range: NSRange(location: 5, length: 6))
mutableString.addAttribute(NSForegroundColorAttributeName, value: UIColor.blue , range: NSRange(location: 11, length: 5))
return mutableString
}()
print(string)
Solution 10 - Ios
You can load an HTML attributed string in Swift as follow
var Str = NSAttributedString(
data: htmlstring.dataUsingEncoding(NSUnicodeStringEncoding, allowLossyConversion: true),
options: [ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType],
documentAttributes: nil,
error: nil)
label.attributedText = Str
To load a html from file
if let rtf = NSBundle.mainBundle().URLForResource("rtfdoc", withExtension: "rtf", subdirectory: nil, localization: nil) {
let attributedString = NSAttributedString(fileURL: rtf, options: [NSDocumentTypeDocumentAttribute:NSRTFTextDocumentType], documentAttributes: nil, error: nil)
textView.attributedText = attributedString
textView.editable = false
}
http://sketchytech.blogspot.in/2013/11/creating-nsattributedstring-from-html.html
And setup string as per your required attribute....follow this..
http://makeapppie.com/2014/10/20/swift-swift-using-attributed-strings-in-swift/
Solution 11 - Ios
I made a library that makes this a lot easier. Check out ZenCopy.
You can create Style objects, and/or set them to keys to reference later. Like this:
ZenCopy.manager.config.setStyles {
return [
"token": Style(
color: .blueColor(), // optional
// fontName: "Helvetica", // optional
fontSize: 14 // optional
)
]
}
Then, you can easily construct strings AND style them AND have params :)
label.attributedText = attributedString(
["$0 ".style("token") "is dancing with ", "$1".style("token")],
args: ["JP", "Brock"]
)
You can also style things easily with regex searches!
let atUserRegex = "(@[A-Za-z0-9_]*)"
mutableAttributedString.regexFind(atUserRegex, addStyle: "token")
This will style all words with '@' in front of it with the 'token' style. (e.g. @jpmcglone)
I need to still get it working w/ everything NSAttributedString has to offer, but I think fontName, fontSize and color cover the bulk of it. Expect lots of updates soon :)
I can help you get started with this if you need. Also looking for feedback, so if it makes your life easier, I'd say mission accomplished.
Solution 12 - Ios
- (void)changeColorWithString:(UILabel *)uilabel stringToReplace:(NSString *) stringToReplace uiColor:(UIColor *) uiColor{
NSMutableAttributedString *text =
[[NSMutableAttributedString alloc]
initWithAttributedString: uilabel.attributedText];
[text addAttribute: NSForegroundColorAttributeName value:uiColor range:[uilabel.text rangeOfString:stringToReplace]];
[uilabel setAttributedText: text];
}
Solution 13 - Ios
To solve such kind of problems I created library in swift which is called Atributika.
let str = "<r>first</r><g>second</g><b>third</b>".style(tags:
Style("r").foregroundColor(.red),
Style("g").foregroundColor(.green),
Style("b").foregroundColor(.blue)).attributedString
label.attributedText = str
You can find it here https://github.com/psharanda/Atributika
Solution 14 - Ios
Swift 4
let combination = NSMutableAttributedString()
var part1 = NSMutableAttributedString()
var part2 = NSMutableAttributedString()
var part3 = NSMutableAttributedString()
let attrRegular = [NSAttributedStringKey.font : UIFont(name: "Palatino-Roman", size: 15)]
let attrBold:Dictionary = [NSAttributedStringKey.font : UIFont(name: "Raleway-SemiBold", size: 15)]
let attrBoldWithColor: Dictionary = [NSAttributedStringKey.font : UIFont(name: "Raleway-SemiBold", size: 15),
NSAttributedStringKey.foregroundColor: UIColor.red]
if let regular = attrRegular as? [NSAttributedStringKey : NSObject]{
part1 = NSMutableAttributedString(string: "first", attributes: regular)
}
if let bold = attrRegular as? [NSAttributedStringKey : NSObject]{
part2 = NSMutableAttributedString(string: "second", attributes: bold)
}
if let boldWithColor = attrBoldWithColor as? [NSAttributedStringKey : NSObject]{
part3 = NSMutableAttributedString(string: "third", attributes: boldWithColor)
}
combination.append(part1)
combination.append(part2)
combination.append(part3)
Attributes list please see here NSAttributedStringKey on Apple Docs
Solution 15 - Ios
Super easy way to do this.
let text = "This is a colorful attributed string"
let attributedText =
NSMutableAttributedString.getAttributedString(fromString: text)
attributedText.apply(color: .red, subString: "This")
//Apply yellow color on range
attributedText.apply(color: .yellow, onRange: NSMakeRange(5, 4))
For more detail click here; https://github.com/iOSTechHub/AttributedString