SwiftUI 中的导航视图和更改 TabView

Question

堆栈中的伟大人物如何溢出。 我在 swift UI 中遇到问题

我在 NavigationView 中有几个视图 像那样：

tab1：

ShowEventsView

tab2：

View1->View2->View3->View4

我希望 tab2 创建一个“体育赛事”并有一个 feed 来显示在 tab1 中为用户创建的事件，所以问题是当我刚刚创建事件时自动将 tab3 更改为 tab1。

不确定，推荐使用navigationView还是navigationStack？

标签视图：

enum Tab {
        case home
        case calendar
        case add
        case group
        case profile
    }
    
    var body: some View {
        TabView(selection: $selection){
            Home().environmentObject(ReadEvents())
                .tabItem {
                    Label("Home", systemImage: "house")
                }
                .tag(Tab.home)

            CalendarView()
                .tabItem {
                    Label("Calendar", systemImage: "calendar")
                }
                .tag(Tab.calendar)
            
            Add().environmentObject(ModelData()).environmentObject(MapItemViewModel()).environmentObject(SportViewModel())
                .tabItem{
                    Label("Add",systemImage: "plus.app")
                }
                .tag(Tab.add)
            
            Group()
                .tabItem{
                    Label("Group",systemImage: "person.and.person.fill")
                }
            
            Profile()
                .tabItem{
                    Label("Profile",systemImage: "person")
                }
        }.accentColor(accentColor)
    }

视图1

import SwiftUI
import MapKit

struct CreateEvent: View {
    
    @EnvironmentObject var modelData: ModelData
    @EnvironmentObject var networkMonitor: NetworkMonitor
    @State private var showNetworkAlert = false
    @State private var rootIsAactive:Bool = false
    
    
    private var isValid:Bool{
        !modelData.eventName.isEmpty && modelData.eventName.count>3 
    }
    
            
    var body: some View {
        if networkMonitor.isConnectedFireBase && networkMonitor.isConnected{
            NavigationView {
                NavigationStack{
                
                    Text("Name Event")
                        .frame(maxWidth: .infinity, alignment: .leading)
                        .padding(.horizontal)
                    
                    TextField("Micro Tournament",text: $modelData.eventName)
                        .padding(.horizontal)
                        .textFieldStyle(.roundedBorder)
                    
                    Text("Where does the event take place: ")
                        .frame(maxWidth: .infinity, alignment: .leading)
                        .padding(.horizontal)
                    
                    MapItem()
                    
                }
                .navigationTitle("Create Event")
                .navigationBarItems(trailing:
                    NavigationLink(
                        destination: SelectSport(rootIsActive: $rootIsAactive),
                        isActive: $rootIsAactive
                    ){
                        Text("Next")
                    }
                    .isDetailLink(false)
                    .disabled(!isValid)
    
                )
            }.onChange(of: networkMonitor.isConnected) { connection in
                showNetworkAlert = connection == false
            }
            .alert(
                "Network connection seems to be offline.",
                isPresented: $showNetworkAlert
            ) {}
        }else{
            NotConnection()
        }
        
    }
}

其他视图具有非常相似的结构，最后一个视图有一个上传事件的按钮：

Button(action: {
                sendNotification()
                CreateEvent()
                showingAlert = true
                
            }, label: {
                Text("Create")
                    .frame(maxWidth: .infinity)
            })
            .alert(isPresented: $showingAlert){
                Alert(
                    title: Text("Event Created"),
                    message: Text("Wear sunscreen!"),
                    dismissButton: .default(Text("Got it!"),action: {
                        showingHome = true
                    })
                )
            }