小编Mic*_*ehn的帖子

下面是在 VStack 中具有 Text 和 TextField 的应用程序的一些简约示例：

import SwiftUI

struct ContentView: View {
    @State private var textEntry : String = "Hello World"

    var body: some View {
        return VStack {
            Text(textEntry)
            TextField("Enter new text here", text: $textEntry)
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

该应用程序工作正常，即文本小部件显示您在文本字段小部件中键入的内容。问题是您收到布局约束无法得到满足的错误（或警告）：

2020-12-29 10:31:13.800514+0100 SwiftuiTest[32286:2781544] [LayoutConstraints] Unable to simultaneously satisfy constraints.
    Probably at least one of the constraints in the following list is one you don't want. 
    Try …