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A drop-in replacement for UILabel that supports attributes, data detectors, links, and more

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Number of watchers on Github 1
Number of open issues 0
Main language Objective-C
Open pull requests 0+
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Last commit almost 7 years ago
Repo Created almost 7 years ago
Repo Last Updated about 2 years ago
Size 301 KB
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A drop-in replacement for UILabel that supports attributes, data detectors, links, and more

NSAttributedString is pretty rad. When it was ported into iOS 4 from Mac OS, iPhone developers everywhere rejoiced. Unfortunately, as of iOS 4 none of the standard controls in UIKit support it. Bummer.

TTTAttributedLabel was created to be a drop-in replacement for UILabel, that provided a simple API to styling text with NSAttributedString while remaining performant. As a bonus, it also supports link embedding, both automatically with UIDataDetectorTypes and manually by specifying a range for a URL, address, phone number, or event.


To install the docset directly into your local Xcode organizer, first install appledoc, and then clone this project and run appledoc -p TTTAttributedLabel -c "Mattt Thompson" --company-id com.mattt TTTAttributedLabel.*


Build and run the TTTAttributedLabelExample project in Xcode to see TTTAttributedLabel in action.


TTTAttributedLabel requires the CoreText Framework, so the first thing you'll need to do is include the framework into your project. In Xcode 4, go to the project file at the root of your workspace and select your active target. There should be several sections across the top of that window; choose Build Phases. Next, click Link Binary With Libraries to expand that section to see the frameworks currently included in your project. Click the + at the bottom left and select CoreText.framework.

Now that the framework has been linked, all you need to do is drop TTTAttributedLabel.{h,m} into your project, and add #include "TTTAttributedLabel.h" to the top of classes that will use it.

Example Usage

TTTAttributedLabel *label = [[TTTAttributedLabel alloc] initWithFrame:CGRectZero];
label.font = [UIFont systemFontOfSize:14];
label.textColor = [UIColor darkGrayColor];
label.lineBreakMode = UILineBreakModeWordWrap;
label.numberOfLines = 0;

NSString *text = @"Lorem ipsum dolar sit amet";
[label setText:text afterInheritingLabelAttributesAndConfiguringWithBlock:^ NSMutableAttributedString *(NSMutableAttributedString *mutableAttributedString) {
  NSRange boldRange = [[mutableAttributedString string] rangeOfString:@"ipsum dolar" options:NSCaseInsensitiveSearch];
  NSRange strikeRange = [[mutableAttributedString string] rangeOfString:@"sit amet" options:NSCaseInsensitiveSearch];

  // Core Text APIs use C functions without a direct bridge to UIFont. See Apple's "Core Text Programming Guide" to learn how to configure string attributes.
  UIFont *boldSystemFont = [UIFont boldSystemFontOfSize:14];
  CTFontRef font = CTFontCreateWithName((CFStringRef)boldSystemFont.fontName, boldSystemFont.pointSize, NULL);
  if (font) {
    [mutableAttributedString addAttribute:(NSString *)kCTFontAttributeName value:(id)font range:boldRange];
    [mutableAttributedString addAttribute:@"TTTStrikeOutAttribute" value:[NSNumber numberWithBool:YES] range:strikeRange];

  return mutableAttributedString;

First, we create and configure the label, the same way you would instantiate UILabel. Any text properties that are set on the label are inherited as the base attributes when using the -setText:afterInheritingLabelAttributesAndConfiguringWithBlock: method. In this example, the substring ipsum dolar, would appear in bold, such that the label would read Lorem **ipsum dolar** sit amet, in size 14 Helvetica, with a dark gray color.

The normal setText: setter accepts both NSString and NSAttributedString; in the latter case, the attributed string is directly set, without inheriting the base style of the label.

Links and UIDataDetectors

In addition to supporting rich text, TTTAttributedLabel allows you to automatically detect links for URLs, addresses, phone numbers, and dates, or allow you to embed your own.

label.dataDetectorTypes = UIDataDetectorTypeAll; // Automatically detect links when the label text is subsequently changed
label.delegate = self; // Delegate methods are called when the user taps on a link (see `TTTAttributedLabelDelegate` protocol)

label.text = @"Fork me on GitHub! ("; // Repository URL will be automatically detected and linked

NSRange range = [label.text rangeOfString:@"me"];
[label addLinkToURL:[NSURL URLWithString:@""] withRange:range]; // Embedding a custom link in a substring


Inspired by Olivier Halligon's OHAttributedLabel, borrowing some general approaches in converting between UIKit and Core Text text attributes.

Many thanks to the contributors to TTTAttributedLabel, for all of their features, fixes, and feedback.


Mattt Thompson



TTTAttributedLabel is available under the MIT license. See the LICENSE file for more info.

TTTAttributedLabel questions on Stackoverflow (View All Questions)
  • TTTAttributedLabel links are being styled but not clickable
  • Clickable link in TTTAttributedLabel with Swift
  • TTTAttributedLabel clickable link does not work in Swift 3
  • TTTAttributedLabel line height didn't same
  • TTTAttributedLabel link is styled and has UILongPressGestureRecognizer but doesn't have UITapGestureRecognizer
  • By selection on cell my TTTAttributedLabel highlighted to one color and all attributes of attributed string gone
  • TTTAttributedLabel add action to truncation ("Read more" text)
  • TTTAttributedLabel Delegate didSelectLinkWithURL is not getting called in iPhone
  • Tapping URL not work in TTTAttributedLabel while there is a UITapGestureRecognizer on its superview
  • TTTAttributedLabel link detection not working using Storyboard
  • TTTAttributedLabel Link detecting not work in iOS8 with swift
  • TTTAttributedLabel can detect links,but can't be pressed correctly
  • How to use TTTAttributedLabel with '@' and '#'?
  • TTTAttributedLabel Truncation Text Issue
  • why TTTAttributedLabel doesn't show last line content after some special symbols on IOS?
  • iOS Creating attributed label like TTTAttributedLabel in CKLabelComponent
  • Xcode UIAutomation can't interact with TTTAttributedLabel
  • Getting a TTTAttributedLabel to print bold
  • Get text part of clicked URL in TTTAttributedLabel
  • TTTAttributedLabel not supporting for RTL in iOS using UIAppearance
  • How to copy all TTTAttributedLabel content to clipboard?
  • TTTAttributedLabel link font changing when UIAlertView presents
  • TTTAttributedLabel show long url auto break line
  • TTTAttributedLabel Delegate didSelectLinkWithURL not getting called
  • How to add NSDictionary UIColor in iOS for TTTAttributedLabel LinkAttributes
  • Is it possible to set link attributes using UIAppearance on TTTAttributedLabel?
  • TTTAttributedLabel with large amounts of text which requires scrolling
  • How to make TTTAttributedLabel vertically align center with truncated tail
  • How to reduce length of links OR set a fixed length for links detected in TTTAttributedLabel
  • Link tap color for TTTAttributedLabel
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