UIKit Plus：注入 SwiftUI 式开发效率​​ 通过链式语法与现代化 API 重构 UIKit 开发范式，在保留原生控制权的同时，获得 SwiftU

github:SwiftlyUI

核心优势 📊

✅ 存量项目现代化 渐进式改造现有 UIKit 代码

✅ 开发体验革新 在 UIKit 上获得 SwiftUI 的开发效率

✅ 完全掌控力 保留 UIKit 的底层控制能力

✅ 深度整合 无缝兼容 Objective-C/Swift 代码

✅ 企业级适配 非 SwiftUI 项目的完美解决方案

功能特性 ✨

🌟 链式语法革命

let stackView = UIStackView()
    .axis(.vertical)
    .spacing(10)
    .alignment(.center)
    .distribution(.fillEqually)
    .padding()
    .separator(color: .red, size: CGSize(width: 20, height: 2))

🎮 智能手势系统

let view = UIView()
  .onGesture(.doubleTap) { _ in print("双击触发") }
  .onGesture(.swipe(.up)) { _ in showMenu() }

• 声明式动画引擎

withAnimation(.spring(duration: 0.8)) {
    view.transform = CGAffineTransform(scaleX: 1.2, y: 1.2)
} completion: { _ in /* 动画收尾逻辑 */ }

📐 多模式布局

// 自动布局 | Auto Layout
.frame(width: 100, minHeight: 200)

// SnapKit 
.snp { make in
    make.with.height.equalTo(30)
}

// 父控件前布局
UIView().left(to: superView.leftAnchor, offset: 30)
        .top(to: superView, offset: 30)
        .fill(to: superView)

组件构建示例

UIView Build

Basics

let view = UIView()
    .backgroundColor(.clear)
    .border(.orange)
    .border(.black, 2)
    .cornerRadius(8)
    .alpha(0.5)
    .opacity(0.5)
    .hidden(false)
    .hidden()
    .tag(100)
    .userInteractionEnabled(false)
    .userInteractionEnabled()
    .shadow(color: .black, radius: 3, opacity: 0.3, offset: .zero)
    .backgroundView {
      UIView()
    }

and more ...

• Layout

//自动布局 | Auto Layout
let brother = UIView()
    .frame(width: 100, height: 200)
    .frame(width: 20)
    .frame(height: 100)
    .frame(minWidth: 50)
    .frame(maxWidth: 200)
    .snp { make in // if Import SnapKit
        make.width.equalTo(100)
        make.height.equalTo(200)
    }

//父控件前布局 | Pre-Superview Layout
let view = UIView()
    .left(to: superView.leftAnchor, offset: 30)
    .top(to: superView, offset: 30)
    .fill(to: superView)
    .fill(to: brother, UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10))
    .leading(to: superView)
    .bottom(to: superView)
    .width(20)
    .width(to: view, multiplier: 1.2)

superView.addSubview(brother)     
superView.addSubview(view)

• Gesture

let view = UIView()
    .onGesture(.tap) { _ in
        // action
    }
    .onGesture(.tap, action:gestureAction)
    .onGesture(.doubleTap, action: onTapGestureAction)
    .onGesture(.pan, action: onPanGestureAction)
    .onGesture(.rotation, action: onRelocationGestureAction)
    .onGesture(.pinch, action: onPinchGestureAction)
    .onGesture(.swipe(direction: .down), action: onSwipeGestureAction)
    .onGesture(.longPress(minimumDuration: 1), action: onLongPressGestureAction)

func onGestureAction(_ gesture: UIGestureRecognizer) { }
func onTapGestureAction(_ gesture: UITapGestureRecognizer) { }
func onPanGestureAction(_ gesture: UIPanGestureRecognizer) { }
func onSwipeGestureAction(_ gesture: UISwipeGestureRecognizer) { }
func onPinchGestureAction(_ gesture: UIPinchGestureRecognizer) { }
func onRelocationGestureAction(_ gesture: UIRotationGestureRecognizer) { }
func onLongPressGestureAction(_ gesture: UILongPressGestureRecognizer) { }

• animations

withAnimation {
    self.box.alpha = 1.0
}

withAnimation(.default) {
    self.box.alpha = 1.0
}

withAnimation(.default(duration: 0.5)) {
    self.box.transform = CGAffineTransform(scaleX: 0.1, y: 0.1)
}

withAnimation(.default(duration: 0.5)) {
    self.box.alpha = 1.0
} completion: { _ in
    self.box.removeFromSuperview()
}

withAnimation(.default(duration: 0.5), completion: { _ in
    self.box.alpha = 0.0
}) {
    self.box.removeFromSuperview()
}

withAnimation(.easeInOut) {
    self.box.centerYConstraint.constant += 100
    self.box.layoutIfNeeded()
}

withAnimation(.easeInOut(duration: 0.5, delay: 0.5, refreshAllViews: true)) {// refreshAllViews default is False
    self.box.centerYConstraint.constant += 100
    self.box.layoutIfNeeded()
}

withAnimation(.easeIn) {
    self.box.centerYConstraint.constant += 100
    self.box.layoutIfNeeded()
}

withAnimation(.easeOut) {
    self.box.alpha = 1.0
}

withAnimation(.linear) {
    self.box.alpha = 1.0
}

withAnimation(.delay(0.5, animation: .default)) {
    self.box.backgroundColor = .green
}

withAnimation(.spring(duration: 0.5, dampingRatio: 0.5, initialVelocity: 0.5)) {
    self.box.centerYConstraint.constant += 100
    self.box.layoutIfNeeded()
}

withAnimation(.repeatCount(3, autoreverses: true, animation: .default)) {
    self.box.transform = CGAffineTransform(rotationAngle: .pi/4)
}

withAnimation(.repeatForever(autoreverses: true, animation: .default)) {
    self.box.transform = CGAffineTransform(rotationAngle: .pi/4)
}

UIStackView Build

let stackView = UIStackView()
    .axis(.vertical)
    .spacing(10)
    .alignment(.center)
    .distribution(.fillEqually)
    .padding()// all padding default 16
    .padding(.all)// default 16
    .padding(.all, 20)
    .padding(.top)// default 16
    .padding(.bottom, 20)
    .padding(.left, 20)
    .padding(.right, 20)
    .padding(.horizontal)// default 16
    .padding(.vertical, 30)
    .separator(color: .red, size: CGSize(width: 20, height: 2))

UITextView Build

let textView = UITextView()
    .font(.regular(16))
    .textColor(.black)
    .foregroundColor(.black)
    .alignment(.left)
    .keyboardType(.numberPad)
    .text("input text")
    .placeholder("placeholder", color: .placeholderText)
    .editable(true)
    .maxLength(50)
    .padding()
    .padding(.horizontal, 10)
    .padding(.vertical, 10)
    .onTextChange(onTextChangeAction)
    .onTextChange(onTextViewChangeAction)
    .onBeginEditing(onBeginEditingAction)
    .onEndEditing(onEndEditingAction)


func onTextChangeAction(_ text: String) {}
func onTextViewChangeAction(_ textView: UITextView) {}
func onBeginEditingAction(_ textView: UITextView) {}
func onEndEditingAction(_ textView: UITextView) {}

UITextField Build

let textField = UITextField()
    .font(.regular(16))
    .textColor(.black)
    .foregroundColor(.black)
    .alignment(.left)
    .keyboardType(.numberPad)
    .text("input text")
    .placeholder("placeholder", color: .placeholderText)
    .padding()
    .padding(.horizontal, 10)
    .padding(.vertical, 10)
    .maxLength(10)
    .onTextChange(onTextChangeAction)
    .onTextChange(onTextViewChangeAction)
    .onBeginEditing(onBeginEditingAction)
    .onEndEditing(onEndEditingAction)


func onTextChangeAction(_ text: String) {}
func onTextViewChangeAction(_ textView: UITextView) {}
func onBeginEditingAction(_ textView: UITextView) {}
func onEndEditingAction(_ textView: UITextView) {}

UILabel Build

let label = UILabel()
    .font(.regular(16))
    .textColor(.black)
    .foregroundColor(.black)
    .alignment(.left)
    .text("input text")
    .lineSpacing(20, wordSpacing: 2)

UIControl Build

let contorl = UIControl()
    .onAction { print("click") }
    .onAction(for: .touchUpInside, action: { print("click") })
    .onAction(self, action: #selector(click))

UIButton Build

let button = UIButton()
    .image(UIImage(named: "image"), state: .normal)
    .imageName("local_imageName", state: .selected)
    .backgroundImage(UIImage.gradient(colors: [.red, .green], direction: .leftToRight, size: CGSize(width: 100, height: 100)))
    .backgroundImageName("local_imageName", state: .normal)
    .cornerRadius(20)
    .onAction{ print("action") }