๐ฆ KeyPath dynamicMemberLookup based syntax sugar for Swift.
let label: UILabel = UILabel().ductTape
.numberOfLines(0)
.textColor(.red)
.text("Hello, World!!")
Above is same as below definition.
let label: UILabel = {
let label = UILabel()
label.numberOfLines = 0
label.textColor = .red
label.text = "Hello, World!!"
return label
}()
NSObject already has been compatible with DuctTape, so you can access .ductTape
property like below.
let builder: Builder<UIView> = UIView().ductTape
If you access .ductTape
, it returns Builder
that provides setter of properties via KeyPath dynamicMemberLookup.
let view: UIView = UIView().ductTape
.backgroundColor(.red)
.translatesAutoresizingMaskIntoConstraints(false)
If you want to access methods of object which is building, func reinforce(_ handler: (Base) -> Void) Builder<Base>
enable to access methods.
let collectionView: UICollectionView = UICollectionView().ductTape
.backgroundColor(.red)
.reinforce { collectionView in
collectionView.register(UITableViewCell.self, forCellWithReuseIdentifier: "Cell")
}
Builder
has func reinforce<T1, ...>(_ t1: T1, ..., handler: (Base) -> Void) Builder<Base>
methods.
In additional usage, be able to access outside object with func reinforce
if passing objects as arguments.
lazy var collectionView: UICollectionView = UICollectionView().ductTape
.translatesAutoresizingMaskIntoConstraints(false)
.reinforce(view) { collectionView, view in
view.addSubview(collectionView)
NSLayoutConstraint.activate([
view.topAnchor.constraint(equalTo: collectionView.topAnchor),
view.leadingAnchor.constraint(equalTo: collectionView.leadingAnchor),
view.trailingAnchor.constraint(equalTo: collectionView.trailingAnchor),
view.bottomAnchor.constraint(equalTo: collectionView.bottomAnchor)
])
}
There are two ways to use DuctTape.
- Use DuctTapeCompatible
class Dog: DuctTapeCompatible {
var name: String
}
let dog: Dog = Dog().ductTape
.name("Copernicus")
- Use Builder directly
class Dog {
var name: String
}
let dog: Dog = Builder(Dog())
.name("Copernicus")
class ViewController: UIViewController {
let flowLayout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
.ductTape
.minimumLineSpacing(10)
.minimumInteritemSpacing(10)
.itemSize(CGSize(width: 100, height: 100))
.scrollDirection(.vertical)
lazy var collectionView: UICollectionView = UICollectionView(frame: .zero,
collectionViewLayout: flowLayout)
.ductTape
.dataSource(self)
.delegate(self)
.translatesAutoresizingMaskIntoConstraints(false)
.reinforce {
$0.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "Cell")
}
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(collectionView)
NSLayoutConstraint.activate([
view.topAnchor.constraint(equalTo: collectionView.topAnchor),
view.leadingAnchor.constraint(equalTo: collectionView.leadingAnchor),
view.trailingAnchor.constraint(equalTo: collectionView.trailingAnchor),
view.bottomAnchor.constraint(equalTo: collectionView.bottomAnchor)
])
}
}
- Xcode 11
- macOS 10.10
- iOS 9.0
- tvOS 10.0
- watchOS 3.0
DuctTape is available through CocoaPods. To install
it, simply add the following line to your Podfile
:
pod "DuctTape"
If youโre using Carthage, simply add
DuctTape to your Cartfile
:
github "marty-suzuki/DuctTape"
Simply add the following line to your Package.swift
:
.package(url: "https://github.com/marty-suzuki/DuctTape.git", from: "version")
DuctTape is released under the MIT License.