Use multiple font colors in a single label

Solution 1:

Reference from here.

First of all initialize of you NSString and NSMutableAttributedString as below.

var myString:NSString = "I AM KIRIT MODI"
var myMutableString = NSMutableAttributedString()

In ViewDidLoad

override func viewDidLoad() {

    myMutableString = NSMutableAttributedString(string: myString, attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: 18.0)!])
    myMutableString.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor(), range: NSRange(location:2,length:4))
    // set label Attribute
    labName.attributedText = myMutableString
    super.viewDidLoad()
}

OUTPUT

MULTIPLE COLOR

Add the line code below in your ViewDidLoad to get multiple colors in a string.

 myMutableString.addAttribute(NSForegroundColorAttributeName, value: UIColor.greenColor(), range: NSRange(location:10,length:5))

Multiple color OUTPUT

Swift 4

var myMutableString = NSMutableAttributedString(string: str, attributes: [NSAttributedStringKey.font :UIFont(name: "Georgia", size: 18.0)!])
myMutableString.addAttribute(NSAttributedStringKey.foregroundColor, value: UIColor.red, range: NSRange(location:2,length:4))

Swift 5.0

 var myMutableString = NSMutableAttributedString(string: str, attributes: [NSAttributedString.Key.font :UIFont(name: "Georgia", size: 18.0)!])
 myMutableString.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.red, range: NSRange(location:2,length:4))

Solution 2:

For @Hems Moradiya

let attrs1 = [NSFontAttributeName : UIFont.boldSystemFontOfSize(18), NSForegroundColorAttributeName : UIColor.greenColor()]

let attrs2 = [NSFontAttributeName : UIFont.boldSystemFontOfSize(18), NSForegroundColorAttributeName : UIColor.whiteColor()]

let attributedString1 = NSMutableAttributedString(string:"Drive", attributes:attrs1)

let attributedString2 = NSMutableAttributedString(string:"safe", attributes:attrs2)

attributedString1.appendAttributedString(attributedString2)
self.lblText.attributedText = attributedString1

Swift 4

    let attrs1 = [NSAttributedStringKey.font : UIFont.boldSystemFont(ofSize: 18), NSAttributedStringKey.foregroundColor : UIColor.green]

    let attrs2 = [NSAttributedStringKey.font : UIFont.boldSystemFont(ofSize: 18), NSAttributedStringKey.foregroundColor : UIColor.white]

    let attributedString1 = NSMutableAttributedString(string:"Drive", attributes:attrs1)

    let attributedString2 = NSMutableAttributedString(string:"safe", attributes:attrs2)

    attributedString1.append(attributedString2)
    self.lblText.attributedText = attributedString1

Swift 5

    let attrs1 = [NSAttributedString.Key.font : UIFont.boldSystemFont(ofSize: 18), NSAttributedString.Key.foregroundColor : UIColor.green]

    let attrs2 = [NSAttributedString.Key.font : UIFont.boldSystemFont(ofSize: 18), NSAttributedString.Key.foregroundColor : UIColor.white]

    let attributedString1 = NSMutableAttributedString(string:"Drive", attributes:attrs1)

    let attributedString2 = NSMutableAttributedString(string:"safe", attributes:attrs2)

    attributedString1.append(attributedString2)
    self.lblText.attributedText = attributedString1

Solution 3:

Swift 4

By using following extension function, you can directly set a color attribute to an attributed string and apply the same on your label.

extension NSMutableAttributedString {

    func setColorForText(textForAttribute: String, withColor color: UIColor) {
        let range: NSRange = self.mutableString.range(of: textForAttribute, options: .caseInsensitive)

        // Swift 4.2 and above
        self.addAttribute(NSAttributedString.Key.foregroundColor, value: color, range: range)

        // Swift 4.1 and below
        self.addAttribute(NSAttributedStringKey.foregroundColor, value: color, range: range)
    }

}

Try above extension, using a label:

let label = UILabel()
label.frame = CGRect(x: 60, y: 100, width: 260, height: 50)
let stringValue = "stackoverflow"

let attributedString: NSMutableAttributedString = NSMutableAttributedString(string: stringValue)
attributedString.setColorForText(textForAttribute: "stack", withColor: UIColor.black)
attributedString.setColorForText(textForAttribute: "over", withColor: UIColor.orange)
attributedString.setColorForText(textForAttribute: "flow", withColor: UIColor.red)
label.font = UIFont.boldSystemFont(ofSize: 40)

label.attributedText = attributedString
self.view.addSubview(label)

Result:

Solution 4:

Updated Answer for Swift 4

You can easily use html inside attributedText property of the UILabel to easily do various text formatting.

 let htmlString = "<font color=\"red\">This is  </font> <font color=\"blue\"> some text!</font>"

    let encodedData = htmlString.data(using: String.Encoding.utf8)!
    let attributedOptions = [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType]
    do {
        let attributedString = try NSAttributedString(data: encodedData, options: attributedOptions, documentAttributes: nil)
        label.attributedText = attributedString

    } catch _ {
        print("Cannot create attributed String")
    }

Updated Answer for Swift 2

let htmlString = "<font color=\"red\">This is  </font> <font color=\"blue\"> some text!</font>"

let encodedData = htmlString.dataUsingEncoding(NSUTF8StringEncoding)!
let attributedOptions = [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType]
do {
    let attributedString = try NSAttributedString(data: encodedData, options: attributedOptions, documentAttributes: nil)
    label.attributedText = attributedString

} catch _ {
    print("Cannot create attributed String")
}