在 SwiftUI 中显示“UIActivityViewController" [英] Showing 'UIActivityViewController' in SwiftUI

问题描述

我想让用户能够共享位置，但我不知道如何在 SwiftUI 中显示 UIActivityViewController.

I want to let the user to be able to share a location but I don't know how to show UIActivityViewController in SwiftUI.

推荐答案

SwiftUI中UIActivityViewController的基本实现是

import UIKit
import SwiftUI

struct ActivityViewController: UIViewControllerRepresentable {

    var activityItems: [Any]
    var applicationActivities: [UIActivity]? = nil

    func makeUIViewController(context: UIViewControllerRepresentableContext<ActivityViewController>) -> UIActivityViewController {
        let controller = UIActivityViewController(activityItems: activityItems, applicationActivities: applicationActivities)
        return controller
    }

    func updateUIViewController(_ uiViewController: UIActivityViewController, context: UIViewControllerRepresentableContext<ActivityViewController>) {}

}

这是如何使用它.

struct MyView: View {

    @State private var isSharePresented: Bool = false

    var body: some View {
        Button("Share app") {
            self.isSharePresented = true
        }
        .sheet(isPresented: $isSharePresented, onDismiss: {
            print("Dismiss")
        }, content: {
            ActivityViewController(activityItems: [URL(string: "https://www.apple.com")!])
        })
    }
}

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