swiftGrammar/AIGrammar/GrammarSubView/RichText.swift

//
//  RichText.swift
//  AIGrammar
//
//  Created by oscar on 2024/4/3.
//

import SwiftUI


struct RichText: View {
        var text1: AttributedString {
            var text = AttributedString(localized:"登录即表示同意")
            text.foregroundColor = .gray
            return text
        }
        var text2: AttributedString {
            var text = AttributedString(localized:"用户协议")
            text.link = URL(string: "111")
            text.foregroundColor = .red
            return text
        }
        var text3: AttributedString {
            var text = AttributedString(localized:"和")
            text.foregroundColor = .gray
            return text
        }
        var text4: AttributedString {
            var text = AttributedString(localized:"隐私协议")
            text.link = URL(string: "222")
            text.foregroundColor = .red
            return text
        }
        
        var text: AttributedString {
            text1 + text2 + text3 + text4
        }
    
    
    var body: some View {
        VStack {
            
            Text(text)
                .environment(\.openURL, OpenURLAction { url in
                    let path = url.absoluteString
                    if path.hasPrefix("111") {
                        print("111...")
                    } else if path.hasPrefix("222") {
                        print("222...")
                    }
                    return .handled
                })
            
            Text("Device ID: \(globalEnvironment.deviceID)")
        }
    }
}

/*
import UIKit
import SwiftUI

class RichTextViewController: UIViewController, UITextViewDelegate {
    var textView: UITextView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 初始化 UITextView 并设置代理
        textView = UITextView(frame: self.view.bounds)
        textView.delegate = self
        
        // 允许富文本交互
        textView.isEditable = false
        textView.isSelectable = true
        
        // 创建富文本
        let attributedString = NSMutableAttributedString(string: "点击这里进行测试")
        
        // 设置点击部分的样式和链接
        let linkAttributes: [NSAttributedString.Key: Any] = [
            .link: URL(string: "http://baidu.com")!, // 使用自定义URL scheme
            .foregroundColor: UIColor.blue
        ]
        
        attributedString.setAttributes(linkAttributes, range: NSRange(location: 0, length: 4)) // 假设"点击这里"是可点击的
        
        textView.attributedText = attributedString
        
        // 将 UITextView 添加到当前视图
        self.view.addSubview(textView)
    }
    
    // 处理富文本链接点击事件
    func textView(_ textView: UITextView, shouldInteractWith URL: URL, in characterRange: NSRange, interaction: UITextItemInteraction) -> Bool {
        print("特定文本部分被点击")
        print(URL.scheme as Any)
        if URL.scheme == "http" {
            // 在这里添加点击后的处理逻辑
            return false // 返回false表示不让系统处理这个URL
        }
        return true
    }
}

struct RichTextView: UIViewRepresentable {
    func makeUIView(context: Context) -> UITextView {
        // 确保 RichTextViewController 实例在这里创建，并立即返回 textView
        // 这样可以避免 textView 在使用之前未被初始化
        let controller = RichTextViewController()
        controller.loadViewIfNeeded() // 确保视图控制器的视图被加载，从而textView被初始化
        return controller.textView
    }
    
    func updateUIView(_ uiView: UITextView, context: Context) {
        // 更新UI视图（如果需要）
    }
}

struct RichText: View {
    var body: some View {
        VStack{
            Text("请点击下面的文本 请点击下面的文本 请点击下面的文本 请点击下面的文本 请点击下面的文本 请点击下面的文本 ")
            // 使用我们的 RichTextView
            RichTextView()
                .frame(maxHeight: .infinity) // 设置一个合适的高度
                //.edgesIgnoringSafeArea(.all) // 让视图延伸到屏幕的边缘
        }
    }
}
 */

/*
import SwiftUI
import UIKit

struct AttributedText: UIViewRepresentable {
    var attributedString: NSAttributedString
    
    func makeUIView(context: Context) -> UILabel {
        let label = UILabel()
        label.numberOfLines = 0 // 支持多行显示
        label.attributedText = attributedString
        
        // 添加手势识别器
        let tapGesture = UITapGestureRecognizer(target: context.coordinator, action: #selector(Coordinator.labelTapped(_:)))
        label.addGestureRecognizer(tapGesture)
        label.isUserInteractionEnabled = true
        
        return label
    }
    
    func updateUIView(_ uiView: UILabel, context: Context) {
        // 更新富文本字符串
        uiView.attributedText = attributedString
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }
    
    class Coordinator: NSObject {
        var parent: AttributedText
        
        init(_ parent: AttributedText) {
            self.parent = parent
        }
        
        @objc func labelTapped(_ sender: UITapGestureRecognizer) {
            // 处理点击事件，这里需要根据点击位置来确定用户点击的是哪一部分文本
            // 这部分较为复杂，可能需要使用UILabel的子类来自定义实现
            print("Label was tapped")
        }
    }
}


struct RichText: View {
    var body: some View {
        // 示例使用AttributedText
        AttributedText(attributedString: attributedString)
    }

    var attributedString: NSAttributedString {
        let fullString = NSMutableAttributedString(string: "Tap on ")
        
        let clickablePart = NSAttributedString(string: "this text", attributes: [
            .foregroundColor: UIColor.blue,
            .underlineStyle: NSUnderlineStyle.single.rawValue
        ])
        
        fullString.append(clickablePart)
        fullString.append(NSAttributedString(string: " to see action."))
        
        return fullString
    }
}
 
 */

#Preview {
    RichText()
}