NSAttributedString+DDHTML

Simplifies working with attributed strings by allowing you to use HTML to describe formatting behaviors.

NSAttributedString+DDHTML isn't intended to support full HTML rendering. Instead it provides a quick, effient and light-weight implementation for leveraging attributed strings when utilizing native UIKit interface elements.

License

It is open source and covered by a standard BSD license. That means you have to mention Derek Bowen @ Deloite Digital as the original author of this code.

Requirements

NSAttributedString+DDHTML requires a minimum iOS deployment target of iOS 7.0 because of:

• NSTextAttachment

Setup

Using CocoaPods

One of the easiest ways to integrate NSAttributedString+DDHTML in your project is to use CocoaPods:

1. Add the following line to your Podfile:

   pod "NSAttributedString-DDHTML"

2. In your project directory, run pod update

3. You should now be able to add #import <NSAttributedString-DDHTML/NSAttributedString+DDHTML.h> to any of your target's source files to use the library!

Manual

1. Add NSAttributedString+DDHTML.m/h to your project.
2. Add libxml2.dylib to the "Link Binary With Libraries" section of your target's build phase.
3. Add ${SDKROOT}/usr/include/libxml2 to your project's Header Search Paths under Build Settings.
4. Start using it!

Usage

#import "NSAttributedString+DDHTML.h"

...

NSAttributedString *attributedString = [NSAttributedString attributedStringFromHTML:@"My <b>formatted</b> string."];

...

Supported Tags

b, strong - Bold (iOS, watchOS, tvOS)

i - Italics (iOS, watchOS, tvOS)

u - Underline (iOS, watchOS, tvOS)

strike - Strikethrough (iOS, watchOS, tvOS)

stroke - Stroke (iOS, watchOS, tvOS)

• color: Color of stroke, e.g. stroke="#ff0000"
• width: Width of stroke, e.g. stroke="2.0"
• nofill: If present text color will be transparent

shadow - Shadow (iOS, tvOS)

• offset: Amount to offset shadow from center of text, e.g. offset="{1.0, 1.0}"
• blurRadius: Radius/thickness of the shadow
• color: Color of the shadow

font - Font (iOS, watchOS, tvOS)

• face: Name of font to use, e.g. face="Avenir-Heavy"
• size: Size of the text, e.g. size="12.0"
• color: Color of the text, e.g. color="#fafafa"
• backgroundColor: Color of the text background, e.g. backgroundColor="#333333"

br - Line Break (iOS, watchOS, tvOS)

p - Paragraph (iOS, watchOS, tvOS)

• align: Alignment of text, e.g. align="center"
  • Available values: left, center, right, justify
• lineBreakMode: How to handle text which doesn't fit horizontally in the view
  • Available values: WordWrapping, CharWrapping, Clipping, TruncatingHead, TruncatingTail, TruncatingMiddle
• firstLineHeadIndent
• headIndent
• hyphenationFactor
• lineHeightMultiple
• lineSpacing
• maximumLineHeight
• minimumLineHeight
• paragraphSpacing
• paragraphSpacingBefore
• tailIndent

img - Image (iOS, tvOS)

• src : key in imagerMapper parameter
• width : px
• height : px