swiftui的导航范围内和尾随按钮未显示在familyactivitypicker

Question

我在Swiftui中有以下内容以显示

View

：

：

FamilyActivityPicker，但是，均未显示出尾巴和尾随按钮：

我做错了什么？我们应该如何取消或完成家庭攻击视图？

Edit：

当我与

import SwiftUI
import FamilyControls

struct FamilyActivityPickerView: View {
    @State private var selectionToDiscourage = FamilyActivitySelection()
    @Environment(\.dismiss) private var dismiss
    
    var body: some View {
        FamilyActivityPicker(headerText: "Select Apps to Restrict", selection: $selectionToDiscourage).navigationBarItems(leading: Button("Cancel") {
            print("Cancel!")
            dismiss()
        }, trailing: Button("Done") {
            print("Done!")
            dismiss()
        }).ignoresSafeArea().onChange(of: selectionToDiscourage) { newSelection in
            let applications = selectionToDiscourage.applications
            let categories = selectionToDiscourage.categories
            let webDomains = selectionToDiscourage.webDomains
            print("applications: \(applications), categories: \(categories), webDomains: \(webDomains)")
        }
    }
}

一起使用

NavigationStack

时，我最终得到了2个导航栏，如下所示，如下所示，屏幕截图看起来很丑陋并浪费了空间：.toolbar

恢复：

Answer 1

import SwiftUI
import FamilyControls

struct FamilyActivityPickerView: View {
    @State private var selectionToDiscourage = FamilyActivitySelection()
    @Environment(\.dismiss) private var dismiss
    
    var body: some View {
        NavigationStack {
            FamilyActivityPicker(selection: $selectionToDiscourage).ignoresSafeArea().onChange(of: selectionToDiscourage) { newSelection in
                let applications = selectionToDiscourage.applications
                let categories = selectionToDiscourage.categories
                let webDomains = selectionToDiscourage.webDomains
                print("applications: \(applications), categories: \(categories), webDomains: \(webDomains)")
            }.toolbar {
                ToolbarItem(placement: .navigationBarLeading) {
                    Button("Cancel") {
                        print("Cancel!")
                        dismiss()
                    }
                }
                ToolbarItem(placement: .navigationBarTrailing) {
                    Button("Done") {
                        print("Done!")
                        dismiss()
                    }
                }
            }
        }
    }
}