Example 1: flutter modal dialog fullscreen
showDialog( context: context, builder: (BuildContext context) { return Dialog( shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(20.0)),
Example 2: flutter modal dialog fullscreen
showGeneralDialog( context: context, barrierDismissible: true, barrierLabel: MaterialLocalizations.of(context) .modalBarrierDismissLabel, barrierColor: Colors.black45, transitionDuration: const Duration(milliseconds: 200), pageBuilder: (BuildContext buildContext, Animation animation, Animation secondaryAnimation) { return Center( child: Container( width: MediaQuery.of(context).size.width - 10, height: MediaQuery.of(context).size.height - 80, padding: EdgeInsets.all(20), color: Colors.white, child: Column( children: [ RaisedButton( onPressed: () { Navigator.of(context).pop(); }, child: Text( "Save", style: TextStyle(color: Colors.white), ), color: const Color(0xFF1BC0C5), ) ], ), ), ); });
Example 3: add fullscreen modal on a page in flutter app
import 'package:flutter/material.dart';
class TutorialOverlay extends ModalRoute<void> {
@override
Duration get transitionDuration => Duration(milliseconds: 500);
@override
bool get opaque => false;
@override
bool get barrierDismissible => false;
@override
Color get barrierColor => Colors.black.withOpacity(0.5);
@override
String get barrierLabel => null;
@override
bool get maintainState => true;
@override
Widget buildPage(
BuildContext context,
Animation<double> animation,
Animation<double> secondaryAnimation,
) {
return Material(
type: MaterialType.transparency,
child: SafeArea(
child: _buildOverlayContent(context),
),
);
}
Widget _buildOverlayContent(BuildContext context) {
return Center(
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text(
'This is a nice overlay',
style: TextStyle(color: Colors.white, fontSize: 30.0),
),
RaisedButton(
onPressed: () => Navigator.pop(context),
child: Text('Dismiss'),
)
],
),
);
}
@override
Widget buildTransitions(
BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child) {
return FadeTransition(
opacity: animation,
child: ScaleTransition(
scale: animation,
child: child,
),
);
}
}
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Playground',
home: TestPage(),
);
}
}
class TestPage extends StatelessWidget {
void _showOverlay(BuildContext context) {
Navigator.of(context).push(TutorialOverlay());
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Test')),
body: Padding(
padding: EdgeInsets.all(16.0),
child: Center(
child: RaisedButton(
onPressed: () => _showOverlay(context),
child: Text('Show Overlay'),
),
),
),
);
}
}