可调整大小的UITextView具有在UIViewRepresentable中提供错误大小的sizeThatFits

import SwiftUI

struct ResizableTextView: UIViewRepresentable {
    @Binding var text: String

    func makeUIView(context: Context) -> UITextView {
        let textView = UITextView()
        textView.font = UIFont.systemFont(ofSize: 16)
        textView.textColor = .black
        textView.backgroundColor = .white
        textView.delegate = context.coordinator
        return textView
    }

    func updateUIView(_ uiView: UITextView, context: Context) {
        uiView.text = text
        uiView.sizeToFit()
    }

    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }

    class Coordinator: NSObject, UITextViewDelegate {
        let parent: ResizableTextView

        init(_ parent: ResizableTextView) {
            self.parent = parent
        }

        func textViewDidChange(_ textView: UITextView) {
            parent.text = textView.text
        }
    }
}

struct ContentView: View {
    @State private var text = ""

    var body: some View {
        VStack {
            ResizableTextView(text: $text)
                .frame(height: 200)
                .border(Color.gray)
            
            Text("输入的文本：\(text)")
        }
        .padding()
    }
}