[SwiftUI Pit Record] SwiftUI TabBar The color is not selected by default

TabView(selection:$selectedTab) {
    HomeTabbarView()
        .tabItem {
            if selectedTab = = 0 {
                Image("icons_filled_chats")}else{
                Image("icons_outlined_chats")}Text("WeChat") 
        }.tag(0)
    PhoneBookTabbarView()
        .tabItem {
            if selectedTab = = 1 {
                Image("icons_filled_contacts")}else{
                Image("icons_outlined_contacts")}Text("Address book")
        }.tag(1)
    DiscoverTabbarView()
        .tabItem {
            if selectedTab = = 2 {
                Image("icons_filled_discover")}else{
                Image("icons_outlined_discover")}Text("Discovered")
        }.tag(2)
    UserTabbarView()
        .tabItem {
            if selectedTab = = 3 {
                Image("icons_filled_me")}else{
                Image("icons_outlined_me")}Text("I")
        }.tag(3)}// The color setting is unchecked by default
.onAppear(){
    UITabBar.appearance().unselectedItemTintColor = UIColor.init(red: 64.0/255.0, green: 64.0/255.0, blue: 64.0/255.0, alpha: 1)}Copy the code