// // ContentView.swift // Weibo // // Created by Qihua Pan on 2020/8/16. // Copyright © 2020 Qihua Pan. All rights reserved. // import SwiftUI struct ContentView: View { @State var selection=1 var body: some View { TabView(selection: self.$selection) { IndexView().tabItem { VStack { Image("house") Text("首页") .foregroundColor(Color.black) } }.tag(1) LoginView().tabItem { VStack { Image("user") Text("我") } }.tag(2) } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView().environment(\.managedObjectContext, UserData.getContext()).environmentObject(UserData.getUser()) } }