1/17/2024 0 Comments Scaffold key flutter![]() ![]() To hold a global key for this Scaffold state, we shall create a final variable. Both implementations below are working fine.ġ. We need to have the current state of our Scaffold to display the SnackBar in it. With the ScaffoldMessenger class, we can now call showSnackBar() inside or outside the build() function without worrying about context. If a scaffoldMessengerKey is specified, the ScaffoldMessenger can be directly manipulated without first obtaining it from a BuildContext via ScaffoldMessenger.of: from the scaffoldMessengerKey, use the GlobalKey.currentState getter. Inside the ListView, add the DrawerHeader widget.ScaffoldMessenger provides APIs for displaying snack bars in a neat and simple way. A key to use when building the ScaffoldMessenger.Inside the Drawer widget, add the ListView as a child widget.Inside the Scaffold, add the Drawer property and assign the Drawer widget.Make sure you are using the MaterialApp. ![]() Then, the Drawer widget can be added to the Scaffold widget. To add a basic navigation drawer in Flutter, you must first use MaterialApp in your project. How to add a basic navigation drawer in Flutter It is typically not necessary to nest Scaffolds. This means that adding a Scaffold to each route on a Material app will provide the app with Material's basic visual layout structure. If your app has several pages, providing the navigation inside the TabBar makes for a less intuitive user experience. The Scaffold is designed to be a top level container for a MaterialApp. It is recommended to use a navigation drawer when you have at least five pages to navigate. ![]() The navigation drawer can be used as an alternate option to the TabBar widget. Now let’s run the project on a server: flutter run myapp In our project folder, we should see a main.dart file. ![]() If you’re a visual learner, check out this quick video tutorial: First, scaffold a Flutter project by running the following command: flutter create myapp This creates a Flutter project folder with the name myapp. A simple Scaffold.of (context).showSnackBar () is used in the then () statement. Each child of this builder directs to a ItemDetailsScreen using a Navigator.pop () which listens to a pop using the Future thats being returned by the Navigator.push ().
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