How to navigate between screens in Flutter?
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In Flutter, navigating between screens (also called routes or pages) is handled using the Navigator widget. Here's a simple explanation of how to navigate between screens:
1. Using Navigator.push to Go to a New Screen
This method adds a new screen to the navigation stack.
dart
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Navigator.push(
context,
MaterialPageRoute(builder: (context) => SecondScreen()),
);
2. Using Navigator.pop to Go Back
This removes the current screen from the stack and returns to the previous one.
dart
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Navigator.pop(context);
3. Passing Data Between Screens
You can pass data to another screen by adding arguments:
dart
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Navigator.push(
context,
MaterialPageRoute(
builder: (context) => SecondScreen(data: 'Hello'),
),
);
In the SecondScreen, receive the data like this:
dart
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class SecondScreen extends StatelessWidget {
final String data;
SecondScreen({required this.data});
...
}
4. Named Routes (Optional for Larger Apps)
Define routes in MaterialApp:
dart
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MaterialApp(
initialRoute: '/',
routes: {
'/': (context) => HomeScreen(),
'/second': (context) => SecondScreen(),
},
);
Navigate using:
dart
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Navigator.pushNamed(context, '/second');
Summary
Use Navigator.push to go forward and Navigator.pop to go back. You can pass data, use named routes for scalability, and even use pushReplacement to replace the current screen entirely.
Read More
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How does Flutter enable cross-platform app development?
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