Show/hide navigationBar when navigating from HomeView

Author: marcoroth

RubyEvents/App.swift

@@ -11,80 +11,77 @@ import UIKit
 
 class App {
   static var instance = App()
-  
+
   var isTabbed: Bool = true
-  
+
   var sceneDelegate: SceneDelegate?
-  
+
   lazy var navigator = Navigator(delegate: self)
   lazy var tabBarController = TabBarController(app: self)
-  
-  private var currentUnreadMessagesCount: String?
-  
+
   var navigators: [Navigator] {
     if isTabbed {
       return tabBarController.navigators
     }
     return [navigator]
   }
-  
+
   var viewControllers: [UIViewController] {
     navigators.map(\.rootViewController)
   }
-  
+
   var window: UIWindow? {
     sceneDelegate?.window
   }
-  
+
   var isDebug: Bool {
 #if DEBUG
     return true
 #else
     return false
 #endif
   }
-  
+
   var isTestFlight: Bool {
     Bundle.main.appStoreReceiptURL?.lastPathComponent == "sandboxReceipt"
   }
-  
+
   var environment: Environment {
     if isDebug {
       return .development
     }
-    
+
     if isTestFlight {
       return .staging
     }
-    
+
     return .production
   }
-  
+
   func start(sceneDelegate: SceneDelegate) {
     self.sceneDelegate = sceneDelegate
     self.tabBarController.setupTabs()
-    
+
     switchToTabController()
   }
-  
+
   func switchToNavigationController() {
     sceneDelegate?.window?.rootViewController = navigator.rootViewController
     self.isTabbed = false
   }
-  
+
   func switchToTabController() {
     sceneDelegate?.window?.rootViewController = tabBarController
     self.isTabbed = true
   }
-  
+
   func navigatorFor(title: String) -> Navigator? {
     tabBarController.navigatorFor(title: title)
   }
 }
 
 extension App: NavigatorDelegate {
   func handle(proposal: VisitProposal) -> ProposalResult {
-    
     switch proposal.viewController {
     case "home":
       let viewController = UIHostingController(
@@ -93,8 +90,12 @@ extension App: NavigatorDelegate {
         )
       )
 
+      App.instance.tabBarController.hideNavigationBarFor(title: "Home")
+
       return .acceptCustom(viewController)
     default:
+      App.instance.tabBarController.showNavigationBarFor(title: "Home")
+
       return .accept
     }
   }

RubyEvents/components/HomeView.swift

@@ -81,14 +81,11 @@ struct HomeView: View {
       }
     }
     .onAppear {
-      navigator?.rootViewController.navigationBar.isHidden = true
-      
+      App.instance.tabBarController.hideNavigationBarFor(title: "Home")
       if !hasLoadedInitialData {
         fetchData()
         hasLoadedInitialData = true
       }
-    }.onDisappear {
-      navigator?.rootViewController.navigationBar.isHidden = false
     }
   }
 

RubyEvents/controllers/TabBarController.swift

@@ -62,11 +62,25 @@ class TabBarController: UITabBarController {
 
     return navigators[index]
   }
-
-  var currentTab: String? {
+  
+  var currentNavigator: Navigator? {
+    navigatorFor(title: currentTabTitle ?? "")
+  }
+  
+  var currentTabTitle: String? {
     self.tabBar.selectedItem?.title
   }
-
+  
+  func hideNavigationBarFor(title: String) {
+    let navigator = self.navigatorFor(title: title)
+    navigator?.rootViewController.navigationBar.isHidden = true
+  }
+  
+  func showNavigationBarFor(title: String) {
+    let navigator = self.navigatorFor(title: title)
+    navigator?.rootViewController.navigationBar.isHidden = false
+  }
+  
   func hideTabBar() {
     self.tabBar.isHidden = true
   }