Change the color of a link in an NSMutableAttributedString

Posted 2020-12-27 feng9exe

Swift

Updated for Swift 3

Use with a textView.linkTextAttributes = [NSForegroundColorAttributeName: UIColor.green]

And in context:

let attributedString = NSMutableAttributedString(string: "This is an example by @marcelofabri_")

let linkRange = (attributedString.string as NSString).range(of: "@marcelofabri_")

attributedString.addAttribute(NSLinkAttributeName, value: "username://marcelofabri_", range: linkRange)

let linkAttributes: [String : Any] = [

    NSForegroundColorAttributeName: UIColor.green,

    NSUnderlineColorAttributeName: UIColor.lightGray,

    NSUnderlineStyleAttributeName: NSUnderlineStyle.styleSingle.rawValue]

 

// textView is a UITextView

textView.linkTextAttributes = linkAttributes

textView.attributedText = attributedString

textView.delegate = self

Swift 4:

let linkAttributes: [String : Any] = [

    NSAttributedStringKey.foregroundColor.rawValue: UIColor.green,

    NSAttributedStringKey.underlineColor.rawValue: UIColor.lightGray,

    NSAttributedStringKey.underlineStyle.rawValue: NSUnderlineStyle.styleSingle.rawValue]

Objective-C

Use with a textView.linkTextAttributes = @{NSForegroundColorAttributeName:[UIColor greenColor]};

Source: this answer

And from this post:

NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"This is an example by @marcelofabri_"];

[attributedString addAttribute:NSLinkAttributeName

                         value:@"username://marcelofabri_"

                         range:[[attributedString string] rangeOfString:@"@marcelofabri_"]];

 

 

NSDictionary *linkAttributes = @{NSForegroundColorAttributeName: [UIColor greenColor],

                                 NSUnderlineColorAttributeName: [UIColor lightGrayColor],

                                 NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle)};

 

// assume that textView is a UITextView previously created (either by code or Interface Builder)

textView.linkTextAttributes = linkAttributes; // customizes the appearance of links

textView.attributedText = attributedString;

textView.delegate = self;

 https://stackoverflow.com/questions/28361072/change-the-color-of-a-link-in-an-nsmutableattributedstring