一个可以使 UIKit 具有 SwiftUI 那样声明式写法能力的简单软件库，无自定义控件，支持 UIKit 所有原生及其自定义组件.
配合使用 EGChainable 实现链式调用.
配合使用 RxSwift 使控件数据自动更新。
同时可以完全配合 AutoLayout 相关 API 使用，即使在 resultBuilder 里。
当有 DeclarativeUIKit 做不到的事时，可以回落到命令式 UIKit 的写法，就像之前那样，完全没有问题。
class ViewController: UIViewController {
@RxUIPublished var text = "Hello"
@RxUIPublished var text1 = "Hello"
var stack: UIStackView?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
self.text1 = "World"
}
view.body {
UILabel().apply { label in
label.R.text(Observable.combineLatest($text, $text1).flatMap { PublishSubject.just([$0, $1].joined(separator: " ")) })
label.A.textColor(.black)
.text("Hello, World!")
label.S.makeConstraints { make in
make.centerX.equalToSuperview()
make.top.equalToSuperview().offset(70)
}
}
UIView {
UIView().alias("Round cornder backgound").body {
UIStackView.V {
UIStackView.H {
for i in 0..<5 {
UILabel().apply { label in
label.A.text("\(i)").textAlignment(.center)
}
}
}.apply { view in
view.distribution = .fillEqually
view.S.makeConstraints { maker in
maker.height.equalTo(30)
maker.leading.trailing.equalToSuperview()
}
}
["ahh", "ahhh"].map { s in
UILabel().apply { label in
label.A.text(s).textAlignment(.center)
}
}
UILabel().alias("Title").apply { label in
label.text = "Delete your account?"
}.spacingAfterSelf(8)
UIStackView.H {
UILabel().apply { label in
label.text = "ahh"
}
UILabel().alias("Red Alert").apply { label in
label.text = "Deleting account is permanent"
label.textColor = .red.withAlphaComponent(0.4)
}
}
UILabel().alias("Long text, desc of alert.").apply { label in
label.text = "Your Favourite Meditation and Music、your progress of mediation journey will be permanently deleted."
label.numberOfLines = 0
label.textAlignment = .center
label.S.makeConstraints { make in
make.leading.equalToSuperview().offset(16)
make.trailing.equalToSuperview().offset(-16)
}
}.spacingAfterSelf(20)
CircleView {
UIButton().apply { button in
button.setTitle("Continue Deleting Account", for: .normal)
button.setTitleColor(.white, for: .normal)
button.S.makeConstraints { make in
make.edges.equalToSuperview()
make.width.equalTo(250)
make.height.equalTo(40)
}
}
}.apply { view in
view.backgroundColor = .red.withAlphaComponent(0.6)
}.spacingAfterSelf(10)
CircleView {
UIButton().apply { button in
button.setTitle("Cancel", for: .normal)
button.setTitleColor(.white, for: .normal)
button.S.makeConstraints { make in
make.edges.equalToSuperview()
make.width.equalTo(250)
make.height.equalTo(40)
}
}
}.apply { view in
view.backgroundColor = .gray.withAlphaComponent(0.6)
}
UISpace()
}.apply { stack in
stack.alignment = .center
stack.S.makeConstraints { make in
make.edges.equalToSuperview()
}
}.assign(to: &stack)
}.apply { view in
view.backgroundColor = .white
view.layer.cornerRadius = 8
view.clipsToBounds = true
view.S.makeConstraints { make in
make.width.equalTo(300)
make.height.equalTo(400)
make.center.equalToSuperview()
}
}
}.apply { view in
view.backgroundColor = UIColor.black.withAlphaComponent(0.5)
view.S.makeConstraints { make in
make.edges.equalToSuperview()
}
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}To run the example project, clone the repo, and run pod install from the Example directory first.
iOS 10+
DeclarativeUIKit is available through CocoaPods. To install it, simply add the following line to your Podfile:
pod 'EGDeclarativeUIKit', :git => 'https://github.com/EkkoG/DeclarativeUIKit.git'EkkoG, beijiu572@gmail.com
DeclarativeUIKit is available under the MIT license. See the LICENSE file for more info.