TextExtensions

🏷️   UIKit convenience extensions for text styling in code.

Example

let label = UILabel()
label.font = .preferredFont(forTextStyle: .title1)
label.numberOfLines = 0
label.textAlignment = .center
label.textColor = .darkText
label.hlf_updateText("Hello, playground. You are looking okay.")

label.hlf_setKerning(-0.5)
label.hlf_setLineHeight(label.hlf_pointsByEms(1.1))
// ...
label.hlf_updateText("Hello, playground. You are looking good.")

let width = label.hlf_pointsByEms(9)
label.frame.size.width = width
label.sizeToFit()
// ...

Compare the above with the (less flexible) below:

let label = UILabel()
label.numberOfLines = 0

var attributes = [String : Any]()
let font = UIFont.preferredFont(forTextStyle: .title1)
attributes[NSFontAttributeName] = font
attributes[NSForegroundColorAttributeName] = UIColor.darkText
attributes[NSKernAttributeName] = -0.5
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = NSTextAlignment.center
paragraphStyle.maximumLineHeight = round(1.1 * font.pointSize)
attributes[NSParagraphStyleAttributeName] = paragraphStyle
label.attributedText = NSAttributedString(
  string: "Hello, playground. You are looking okay.", attributes: attributes
)
// ...
label.attributedText = NSAttributedString(
  string: "Hello, playground. You are looking good.", attributes: attributes
)

let width = round(9 * font.pointSize)
label.frame.size.width = width
label.sizeToFit()
// ...

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

Swift 3+

Installation

TextExtensions is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "HLFUITextExtensions"

Author

Peng Wang, peng@pengxwang.com

License

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