我一直在测试 SwiftUI 看看我能走多远。现在,我想知道是否可以从 SwiftUI View
传递字符串直接到 UIViewController
.我想用 UILabel
显示这个字符串. UILabel
这是我的 Storyboard上的全部内容。
以下是我的 View Controller ( UIViewController
)。
import UIKit
import SwiftUI
class HomeViewController: UIViewController {
var message = String()
@IBOutlet weak var messageLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
messageLabel.text = message
}
}
struct HomeViewControllerRepresentation: UIViewControllerRepresentable {
func makeUIViewController(context: UIViewControllerRepresentableContext<HomeViewControllerRepresentation>) -> HomeViewController {
UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "homeViewController") as! HomeViewController
}
func updateUIViewController(_ uiViewController: HomeViewController, context: UIViewControllerRepresentableContext<HomeViewControllerRepresentation>) {
}
}
我的 SwiftUI
View
以下是。import SwiftUI
struct ContentView: View {
var body: some View {
NavigationView {
VStack {
NavigationLink(destination: HomeViewControllerRepresentation(message: "GGG")) { // Error
Text("Tap me")
}
}
.navigationBarTitle("")
.navigationBarHidden(true)
}
}
}
我希望我可以只传递一个带有 HomeViewControllerRepresentation 的字符串。但它不会工作。是否有一种从 SwiftUI 传递数据的简单方法
View
至 UIViewController
?谢谢。
最佳答案
UIViewControllerRepresentable
不是代理,而是包装器,所以一切都应该手动传输,比如
struct HomeViewControllerRepresentation: UIViewControllerRepresentable {
var message: String
func makeUIViewController(context: UIViewControllerRepresentableContext<HomeViewControllerRepresentation>) -> HomeViewController {
let controller = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "homeViewController") as! HomeViewController
controller.message = self.message
return controller
}
func updateUIViewController(_ uiViewController: HomeViewController, context: UIViewControllerRepresentableContext<HomeViewControllerRepresentation>) {
}
}
关于ios - 将数据从 SwiftUI View 传递到 UIViewController,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62443417/