选项卡视图导航上的SwiftUI调用函数

import SwiftUI

struct ContentView: View {
    var body: some View {
        TabView {
            Text("Home")
                .font(.largeTitle)
                .tabItem {
                    Image(systemName: "house.fill")
                    Text("Home")
                }
            
            Text("Settings")
                .font(.largeTitle)
                .tabItem {
                    Image(systemName: "gear")
                    Text("Settings")
                }
            
            Text("Profile")
                .font(.largeTitle)
                .tabItem {
                    Image(systemName: "person.fill")
                    Text("Profile")
                }
        }
    }
}

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

.tabItem {
    Image(systemName: "house.fill") // 确保系统名称正确
    Text("Home")
}

@State private var selectedTab = 0

var body: some View {
    TabView(selection: $selectedTab) {
        Text("Home")
            .font(.largeTitle)
            .tabItem {
                Image(systemName: "house.fill")
                Text("Home")
            }
            .tag(0)
        
        Text("Settings")
            .font(.large峡Title)
            .tabItem {
                Image(systemName: "gear")
                Text("Settings")
            }
            .tag(1)
        
        Text("Profile")
            .font(.largeTitle)
            .tabItem {
                Image(systemName: "person.fill")
                Text("Profile")
            }
            .tag(2)
    }
}