Navigation
What is the difference between Navigator 1.0 and Navigator 2.0?
Navigator 1.0 is an imperative stack API (push/pop). Navigator 2.0 is a declarative API driven by a Router ...
30 XP4m
Navigation
20 questions
Navigator 1 & 2, go_router, deep linking
Navigation
How do you set up and use go_router in a Flutter app?
Define a GoRouter with a list of GoRoutes. Replace MaterialApp with MaterialApp.router. Navigate with conte...
20 XP4m
Navigation
How do you implement deep linking in Flutter?
Deep linking requires configuring platform schemes/domains (AndroidManifest, Info.plist), handling incoming...
50 XP5m
Navigation
How do you implement nested navigation in Flutter?
Nested navigation means each tab or section has its own navigation stack. In go_router use ShellRoute. With...
50 XP4m
Navigation
What are the different ways to pass data between routes in Flutter?
Data can be passed via constructor arguments (Navigator 1.0), route path/query parameters, route arguments ...
20 XP3m
Navigation
What are named routes and when should you prefer them over anonymous routes?
Named routes map string paths to widget builders in MaterialApp.routes. They reduce duplication in large ap...
10 XP2m
Navigation
How do you implement an auth guard for protected routes?
In go_router, use the redirect callback — check auth state and return '/login' if unauthenticated. Use refr...
30 XP3m
Navigation
How do you handle the Android back button and iOS swipe-back gesture in Flutter?
Use PopScope (Flutter 3.12+, replaces WillPopScope) to intercept back navigation. Set canPop: false and han...
30 XP3m
Navigation
How do you create custom route transitions in Flutter?
Override the buildTransitions method in a custom PageRoute, or use PageTransitionsTheme for app-wide transi...
30 XP3m
Navigation
How do you return a result from a pushed route?
Navigator.push returns a Future. Call Navigator.pop(context, result) on the child route to complete the Fut...
20 XP2m
Navigation
What are RouteObservers and how do they work?
RouteObserver is a NavigatorObserver that widgets can subscribe to. It notifies them when they become activ...
30 XP3m
Navigation
When do you use a modal bottom sheet vs a dialog in Flutter?
Dialogs interrupt the user with important decisions or alerts. Bottom sheets show contextual actions or add...
10 XP2m
Navigation
How does Flutter Web handle browser navigation (back/forward buttons)?
go_router on Flutter Web automatically syncs the browser URL with navigation state and handles browser back...
50 XP4m
Navigation
How does the Hero widget work with navigation?
Hero animates a widget from its position in the source route to its position in the destination route. Both...
20 XP3m
Navigation
What is the difference between push, pushReplacement, and pushAndRemoveUntil?
push adds a route to the stack. pushReplacement replaces the current route (back goes to previous). pushAnd...
20 XP2m
Navigation
How do you set app-wide custom page transitions?
Set theme.pageTransitionsTheme in MaterialApp's ThemeData to apply custom transitions for all routes on spe...
20 XP2m
Navigation
What are the common tab navigation patterns in Flutter?
Flutter offers BottomNavigationBar/NavigationBar (mobile bottom), NavigationRail (tablet side), TabBar (top...
20 XP3m
Navigation
What is auto_route and how does it compare to go_router?
auto_route generates strongly-typed route classes with code generation, eliminating string-based navigation...
30 XP3m
Navigation
How do you display floating/overlay widgets outside the normal widget tree?
Flutter's Overlay widget is a stack of OverlayEntries that sits above all routes. Insert an OverlayEntry to...
50 XP3m
Navigation
How do you test navigation in Flutter?
Use a mock NavigatorObserver in widget tests to verify navigation calls. For go_router, use GoRouter with a...
30 XP3m