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AttributedString - 基于Swift插值方式优雅的构建富文本

License  Swift  Platform  Swift Package Manager  Carthage  Cocoapods

🇨🇳天朝子民

Features

  • Constructing rich text using interpolation, Smooth coding, Elegant and natural style.
  • More control extension support.
  • Support for multi-level rich text cascading and provide other style priority strategies.
  • Support for all NSAttributedString.Key functions.
  • Support iOS & macOS & watchOS & tvOS.
  • Support text and attachment click or press event callback, support highlight style.
  • Support view attachment, you can add custom view to UITextView.
  • Continue to add more new features.

Screenshot

Simple Coding
All Font
Kern Stroke

Installation

CocoaPods - Podfile

pod 'AttributedString'

Carthage - Cartfile

github "lixiang1994/AttributedString"

Swift Package Manager for Apple platforms

Select Xcode menu File > Swift Packages > Add Package Dependency and enter repository URL with GUI.

Repository: https://github.com/lixiang1994/AttributedString

Swift Package Manager

Add the following to the dependencies of your Package.swift:

.package(url: "https://github.com/lixiang1994/AttributedString.git", from: "version")

Usage

First make sure to import the framework:

import AttributedString

How to initialize:

// Normal
let a: ASAttributedString = .init("lee", .font(.systemFont(ofSize: 13)))
// Interpolation
let b: ASAttributedString = "\("lee", .font(.systemFont(ofSize: 13)))"

Here are some usage examples. All devices are also available as simulators:

Font:

textView.attributed.text = """

\("fontSize: 13", .font(.systemFont(ofSize: 13)))

\("fontSize: 20", .font(.systemFont(ofSize: 20)))

\("fontSize: 22 weight: semibold", .font(.systemFont(ofSize: 22, weight: .semibold)))

"""

ForegroundColor:

textView.attributed.text = """

\("foregroundColor", .foreground(.white))

\("foregroundColor", .foreground(.red))

"""

Strikethrough:

textView.attributed.text = """

\("strikethrough: single", .strikethrough(.single))

\("strikethrough: double color: .red", .strikethrough(.double, color: .red))

"""

Attachment: (Does not include watchOS)

// ASAttributedString.Attachment

textView.attributed.text = """

\(.data(xxxx, type: "zip"))

\(.file(try!.init(url: .init(fileURLWithPath: "xxxxx"), options: [])))

\(.attachment(NSTextAttachment()))

"""

Attachment Image: (Does not include watchOS)

// ASAttributedString.ImageAttachment

textView.attributed.text = """

\(.image(UIImage(named: "xxxx")))

\(.image(UIImage(named: "xxxx"), .custom(size: .init(width: 200, height: 200))))

\(.image(UIImage(named: "xxxx"), .proposed(.center))).

"""

Attachment View: (Only supports iOS: UITextView)

// ASAttributedString.ViewAttachment

textView.attributed.text = """

\(.view(xxxxView))

\(.view(xxxxView, .custom(size: .init(width: 200, height: 200))))

\(.view(xxxxView, .proposed(.center))).

"""

Wrap:

let a: ASAttributedString = .init("123", .background(.blue))
let b: ASAttributedString = .init("456", .background(.red))
textView.attributed.text = "\(wrap: a) \(wrap: b, .paragraph(.alignment(.center)))"

// Defalut embedding mode, Nested internal styles take precedence over external styles
textView.attributed.text = "\(wrap: a, .paragraph(.alignment(.center)))"
textView.attributed.text = "\(wrap: .embedding(a), .paragraph(.alignment(.center)))"
// Override mode, Nested outer style takes precedence over inner style
textView.attributed.text = "\(wrap: .override(a), .paragraph(.alignment(.center)))"

Append:

let a: ASAttributedString = .init("123", .background(.blue))
let b: ASAttributedString = .init("456", .background(.red))
let c: ASAttributedString = .init("789", .background(.gray))
textView.attributed.text = a + b
textView.attributed.text += c

Checking:

var string: ASAttributedString = .init("my phone number is +86 18611401994.", .background(.blue))
string.add(attributes: [.foreground(color)], checkings: [.phoneNumber])
textView.attributed.text = string
var string: ASAttributedString = .init("open https://www.apple.com and https://github.com/lixiang1994/AttributedString", .background(.blue))
string.add(attributes: [.foreground(color)], checkings: [.link])
textView.attributed.text = string
var string: ASAttributedString = .init("123456789", .background(.blue))
string.add(attributes: [.foreground(color)], checkings: [.regex("[0-6]")])
textView.attributed.text = string

Action: (Only supports iOS: UILabel / UITextView & macOS: NSTextField)

For complex styles, it is recommended to use UITextView.

UITextview needs to set isEditable and isSelectable to false.

Click:
// Text
let a: ASAttributedString = .init("lee", .action({  }))
// Attachment (image)
let b: ASAttributedString = .init(.image(image), action: {
    // code
})

// It is recommended to use functions as parameters.
func clicked() {
    // code
}
// Normal
let c: ASAttributedString = .init("lee", .action(clicked))
let d: ASAttributedString = .init(.image(image), action: clicked)
// Interpolation
let e: ASAttributedString = "\("lee", .action(clicked))"
let f: ASAttributedString = "\(.image(image), action: clicked)"

// More information. 
func clicked(_ result: ASAttributedString.Action.Result) {
    switch result.content {
    case .string(let value):
           print("Currently clicked text: \(value) range: \(result.range)")

    case .attachment(let value):
        print("Currently clicked attachment: \(value) range: \(result.range)")
    }
}

label.attributed.text = "This is \("Label", .font(.systemFont(ofSize: 20)), .action(clicked))"
textView.attributed.text = "This is a picture \(.image(image, .custom(size: .init(width: 100, height: 100))), action: clicked) Displayed in custom size."
Press:
func pressed(_ result: ASAttributedString.Action.Result) {
    switch result.content {
    case .string(let value):
        print("Currently pressed text: \(value) range: \(result.range)")

    case .attachment(let value):
        print("Currently pressed attachment: \(value) range: \(result.range)")
    }
}

label.attributed.text = "This is \("Long Press", .font(.systemFont(ofSize: 20)), .action(.press, pressed))"
textView.attributed.text = "This is a picture \(.image(image, .custom(size: .init(width: 100, height: 100))), trigger: .press, action: pressed) Displayed in custom size."
Highlight style:
func clicked(_ result: ASAttributedString.Action.Result) {
    switch result.content {
    case .string(let value):
        print("Currently clicked text: \(value) range: \(result.range)")

    case .attachment(let value):
        print("Currently clicked attachment: \(value) range: \(result.range)")
    }
}

label.attributed.text = "This is \("Label", .font(.systemFont(ofSize: 20)), .action([.foreground(.blue)], clicked))"
Custom:
let custom = ASAttributedString.Action(.press, highlights: [.background(.blue), .foreground(.white)]) { (result) in
    switch result.content {
    case .string(let value):
        print("Currently pressed text: \(value) range: \(result.range)")

    case .attachment(let value):
        print("Currently pressed attachment: \(value) range: \(result.range)")
    }
}

label.attributed.text = "This is \("Custom", .font(.systemFont(ofSize: 20)), .action(custom))"
textView.attributed.text = "This is a picture \(.image(image, .original(.center)), action: custom) Displayed in original size."

Observe: (Only supports iOS: UILabel / UITextView & macOS: NSTextField)

label.attributed.observe([.phoneNumber], highlights: [.foreground(.blue)]) { (result) in
    print("Currently clicked \(result)")
}

textView.attributed.observe([.link], highlights: [.foreground(.blue)]) { (result) in
    print("Currently clicked \(result)")
}

For more examples, see the sample application.

Properties available via Attribute class

The following properties are available:

PROPERTY TYPE DESCRIPTION
font UIFont font
color UIColor foreground color
background UIColor background color
paragraph ParagraphStyle paragraph attributes
ligature Bool Ligatures cause specific character combinations to be rendered using a single custom glyph that corresponds to those characters
kern CGFloat kerning
strikethrough NSUnderlineStyle . UIColor strikethrough style and color (if color is nil foreground is used)
underline NSUnderlineStyle , UIColor underline style and color (if color is nil foreground is used)
link String / URL URL
baselineOffset CGFloat character’s offset from the baseline, in point
shadow NSShadow shadow effect of the text
stroke CGFloat, UIColor stroke width and color
textEffect NSAttributedString.TextEffectStyle text effect
obliqueness CGFloat text obliqueness
expansion CGFloat expansion / shrink
writingDirection WritingDirection / [Int] initial writing direction used to determine the actual writing direction for text
verticalGlyphForm Bool vertical glyph (Currently on iOS, it's always horizontal.)

Cases available via Attribute.Checking enumerated

CASE DESCRIPTION
range(NSRange) custom range
regex(String) regular expression
action action
date date (Based on NSDataDetector)
link link (Based on NSDataDetector)
address address (Based on NSDataDetector)
phoneNumber phone number (Based on NSDataDetector)
transitInformation transit Information (Based on NSDataDetector)

Contributing

If you have the need for a specific feature that you want implemented or if you experienced a bug, please open an issue. If you extended the functionality of AttributedString yourself and want others to use it too, please submit a pull request.

License

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


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Attributedstring

基于Swift插值方式优雅的构建富文本, 支持点击长按事件, 支持不同类型过滤, 支持自定义视图等.

Attributedstring Info

⭐ Stars 464
🔗 Source Code github.com
🕒 Last Update 8 days ago
🕒 Created 2 years ago
🐞 Open Issues 11
➗ Star-Issue Ratio 42
😎 Author lixiang1994