在SwiftUI中为UITextView设置初始视图偏移

对于在SwiftUI中创建为可表示文本视图的TextView，在何处注入初始内容偏移量一直困扰着我。下面是TextView代码，后面是使用它的ContentView。我的目标是能够将长文本视图重新定位到隐藏或关闭视图时停止的位置

import SwiftUI
import UIKit

struct ZTextView: UIViewRepresentable
{
    
    @Binding var text: String
    
    func makeUIView(context: Context) -> UITextView
    {
        let textView = UITextView()
        textView.font = UIFont.preferredFont(forTextStyle: UIFont.TextStyle.largeTitle)
        
        textView.autocapitalizationType = .sentences
        textView.isSelectable = true
        textView.isUserInteractionEnabled = true
        
        textView.delegate = context.coordinator
        
        return textView
    }
    
    func updateUIView(_ uiView: UITextView, context: Context)
    {
        uiView.text = text
    }
    
    // COORDINATOR
    
    func makeCoordinator() -> Coordinator
    {
        Coordinator($text)
    }
    
    class Coordinator: NSObject, UITextViewDelegate
    {
        var text: Binding<String>
        
        init(_ text: Binding<String>)
        {
            self.text = text
        }
        
        func textViewDidChange(_ textView: UITextView)
        {
            self.text.wrappedValue = textView.text
            print("change")
            getOffset(textView)
        }
        
        func scrollViewDidScroll(_ scrollView: UIScrollView)
        {
            print("scroll")
        }
        
        func getOffset(_ textView: UITextView)
        {
            let topLeft = CGPoint(x: textView.bounds.minX, y: textView.bounds.minY)
            let bottomRight = CGPoint(x: textView.bounds.maxX, y: textView.bounds.maxY)
            guard let topLeftTextPosition = textView.closestPosition(to: topLeft),
                  let bottomRightTextPosition = textView.closestPosition(to: bottomRight)
            else {
                return
            }
            let charOffset = textView.offset(from: textView.beginningOfDocument, to: topLeftTextPosition)
            let length = textView.offset(from: topLeftTextPosition, to: bottomRightTextPosition)
            
            print("Offset: \(charOffset), Length: \(length)")
        }
        
        
    }
    
    func setOffset(textview: UITextView, offset: Int)
    {
        let range = NSRange(location: offset, length: 1)
        textview.scrollRangeToVisible(range)
    }
}

我一直在尝试各种可能性，但显然不太了解SwiftUI，无法实现这一点。我有一个类似的应用程序只使用UIKit工作，所以我知道它可以做到，就在现在如何或在哪里

看起来，如果我能找出在哪里调用我所展示的setOffset方法，我应该已经准备好了。有什么建议吗？在iPod Touch模拟器上以46的偏移量调用此命令时，应滚动，以便在第一次显示ZTextView时，屏幕顶部显示“as”字样

import SwiftUI

struct ContentView: View
{
    @State var text = "Mary\nhad\na\nlittle\nlamb\nwho's\nfleece\nwas\nwhite\nas\nsnow.\n\nEverywhere\nthat\nMary\nwent\nthe\nlamb\nwas\nsure\nto\ngo.\n"
    var body: some View
    {
        ZTextView(text: $text)
            .padding()
    }
}