A library that applies styles to UIKit using Swifty Method Chain

ApplyStyleKit

ApplyStyleKit is a library that applies styles to UIKit using Swifty Method Chain.

Normally, when applying styles to UIView etc.,it is necessary to write propertyName and equal operator many times.

With ApplyStyleKit, you can comfortably apply style to your code.

Like this:

    sampleLabel.applyStyle
        .backgroundColor(.yellow)
        .text("sample label")
        .textAlignment(.center)
        .textColor(.green)
        .font(.boldSystemFont(ofSize: 30.0))
        .numberOfLines(0)

Installation

Requirements

• iOS 9.0 or later
• Swift 4.2
• Xcode 10

Carthage

  github "shindyu/ApplyStyleKit"

CocoaPods

target '<Your Target Name>' do
  pod 'ApplyStyleKit'
end

Usage

import ApplyStyleKit

class ViewController: UIViewController {
    let sampleView = UIView()
    let sampleLabel = CustomLabel()

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Apply style
        sampleView.applyStyle
            .backgroundColor(.red)
            .alpha(0.5)

        // When applying to layer
        sampleView.layer.applyStyle
            .cornerRadius(10)
            .borderColor(.gray)
            .borderWidth(2)

        // Of course, you can apply it if you inherit UIView etc.
        sampleLabel.applyStyle
            .text("Of course, you can apply it if you inherit UIView etc.")
            .textAlignment(.center)
            .textColor(.green)
            .font(.boldSystemFont(ofSize: 30.0))
            .numberOfLines(0)
    }
}

Advanced

You can also create your own applyStyleMethod.

To be able to define the extension, the access modifier of base which is a property of StyleObject is public.

example:

extension StyleObject where Base: UIView {
    @discardableResult func specialStyle() -> StyleObject {
        base.backgroundColor = .red
        base.layer.cornerRadius = 10
        return self
    }
}

Support

QuartzCore

• ✅ CALayer

UIKit

• ✅ UIView
• ✅ UILabel
• ✅ UIButton
• ✅ UIImageView
• ✅ UISwitch
• ✅ UIControl
• ✅ UIStackView
• ✅ UISlider
• ✅ UITableView
• ✅ UICollectionView

Basic policy

ApplyStyleKit intends to target methods with no return value and properties with setter.
Due to the nature of ApplyStyleKit, I think that returning types other than StyleObject should be avoided.

GitHub