AttributedStringBuilder

AttributedStringBuilder takes the pain out of creating NSAttributedStrings.

• More readable NSAttributedString creation
• No more faffing about with attribute dictionaries
• Easliy render images in strings
• 'Swifty' api

Usage

Import the AttributedStringBuilder module

import AttributedStringBuilder

Creating a string

AttributedStringBuilder functions always return the AttributedStringBuilder instance that you are using, so you can write concise and readable code by chaining function calls together.

Attributes are defined using enum cases with associated values

Default attributes can be set, and overriden for selected text portions.

let builder = AttributedStringBuilder()

builder.defaultAttributes = [
    .textColor(UIColor.black),
    .font( UIFont.systemFont(ofSize: 16, weight: UIFontWeightRegular) ),
    .alignment(.center),
]

builder
    .text("Attributed strings can make")
    .space()
    .text("specific words", attributes: [.textColor(UIColor.red)])
    .space()
    .text("pop out")
    
builder.attributedString

Another Example

By chaining method calls together, complex AttributedStrings can be created with just a few lines of code

let builder = AttributedStringBuilder()
builder.defaultAttributes = [
    .alignment(.center),
    .textColor(UIColor.orange),
    .font( UIFont(name: "AvenirNext-Bold", size: 30)! )
]

builder
    .text("It's ")
    .text("Easy ", attributes: [.underline(true), .textColor(UIColor.blue)])
    .text("To ", attributes: [.strokeWidth(2), .textColor(UIColor.black)])
    .text("Adjust ", attributes: [.skew(0.3), .textColor(UIColor.magenta)])
    .text("Attributes ", attributes: [.font(UIFont(name: "Baskerville-Bold", size: 30)!)])

builder.attributedString

A More Complex Example

// Create an AttributedStringBuilder with default attributes
let builder = AttributedStringBuilder()
builder.defaultAttributes = [.alignment(.center)]

// First line attributes
let titleAttributes: [AttributedStringBuilder.Attribute] = [
    .font(UIFont(name: "Futura-Bold", size: 40)!),
    .textColor(UIColor.white),
    .strokeColor(UIColor.magenta),
    .strokeWidth(-8),
    .kerning(5)
]

// Second Line Attributes
let canDoAttributes: [AttributedStringBuilder.Attribute] = [
    .font(UIFont(name: "Marker Felt", size: 30)!),
    .textColor(UIColor.orange),
    .kerning(5)
]

// Third Line Attributes
let shadow = NSShadow()
shadow.shadowColor = UIColor.black
shadow.shadowBlurRadius = 5

let awesomeAttributes: [AttributedStringBuilder.Attribute] = [
    .font(UIFont(name: "AvenirNext-Bold", size: 40)!),
    .textColor(UIColor.yellow),
    .kerning(5),
    .shadow(shadow),
    .skew(0.3),
    .underline(true)
]

// Build the string
builder
    .text("ATTRIBUTED STRINGS", attributes: titleAttributes)
    .newline()
    .text("Can do", attributes: canDoAttributes)
    .newline()
    .text("AWESOME THINGS", attributes: awesomeAttributes)

builder.attributedString

Images

It's easy to render images in your strings, and to adjust the size to fit the uppercase or loowercase height of the font

let font = UIFont.systemFont(ofSize: 90)
        
let builder = AttributedStringBuilder()
builder.defaultAttributes = [
    .font(font),
    .underline(true),
    .textColor(UIColor.purple)
]
        
let image = UIImage(named: "PurpleMonster")!
        
builder
    .image(image, withSizeFittingFontUppercase: font)
    .text("Hello")
    .image(image, withSizeFittingFontLowercase: font)

Installation

CocoaPods

Add the following line to your Podfile:

pod "AttributedStringBuilder"

Manual

Copy AttributedStringBuilder.swift in to your project

Who?

@SteveBarnegren

License

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