Merge pull request #42 from nunocaseiro/feat/backbutton-navigationbar…

…-visibility

feat: shows/hides back button and navigation bar

Sources/SwiftUICoordinator/Navigator/Navigator.swift

@@ -60,8 +60,8 @@ public extension Navigator where Self: RouterViewFactory {
 
     func show(route: Route) throws {
         let viewController = self.hostingController(for: route)
-        navigationController.isNavigationBarHidden = route.title == nil
-        
+        navigationController.isNavigationBarHidden = route.title == nil && route.hidesNavigationBar ?? true
+
         switch route.action {
         case .push(let animated):
             navigationController.pushViewController(viewController, animated: animated)
@@ -80,13 +80,13 @@ public extension Navigator where Self: RouterViewFactory {
 
     func set(routes: [Route], animated: Bool = true) {
         let views = views(for: routes)
-        navigationController.isNavigationBarHidden = routes.last?.title == nil
+        navigationController.isNavigationBarHidden = routes.last?.title == nil && routes.last?.hidesNavigationBar ?? true
         navigationController.setViewControllers(views, animated: animated)
     }
 
     func append(routes: [Route], animated: Bool = true) {
         let views = views(for: routes)
-        navigationController.isNavigationBarHidden = routes.last?.title == nil
+        navigationController.isNavigationBarHidden = routes.last?.title == nil && routes.last?.hidesNavigationBar ?? true
         navigationController.setViewControllers(self.viewControllers + views, animated: animated)
     }
 

Sources/SwiftUICoordinator/Routing/Route/NavigationRoute.swift

@@ -18,6 +18,10 @@ public protocol NavigationRoute {
     var action: TransitionAction? { get }
     /// A property that indicates whether the Coordinator should be attached to the View as an EnvironmentObject.
     var attachCoordinator: Bool { get }
+    /// A property that hides the back button during navigation
+    var hidesBackButton: Bool? { get }
+    /// A property that hides the navigation bar
+    var hidesNavigationBar: Bool? { get }
 }
 
 public extension NavigationRoute {
@@ -36,4 +40,12 @@ public extension NavigationRoute {
     var action: TransitionAction? {
         return nil
     }
+
+    var hidesBackButton: Bool? {
+        return nil
+    }
+
+    var hidesNavigationBar: Bool? {
+        return nil
+    }
 }

Sources/SwiftUICoordinator/Routing/RouteHostingController.swift

@@ -36,5 +36,9 @@ public class RouteHostingController<Content: View>: UIHostingController<Content>
         if let appearance = route.appearance {
             self.view.backgroundColor = appearance.background
         }
+
+        if let hidesBackButton = route.hidesBackButton {
+            self.navigationItem.setHidesBackButton(hidesBackButton, animated: false)
+        }
     }
 }