Transperant Background and Button Multiple Background Color in Flutter :
Screenshot :

main.dart
import 'package:flutter/cupertino.dart'; import 'package:flutter/material.dart'; import 'package:transparent_image/transparent_image.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Tutorial', debugShowCheckedModeBanner: false, theme: ThemeData( primarySwatch: Colors.blue, ), home: const MyHomePage( title: 'Flutter Tutorial', ), ); } } class MyHomePage extends StatefulWidget { const MyHomePage({Key key, this.title}) : super(key: key); final String title; @override _MyHomePageState createState() => _MyHomePageState(); } class _MyHomePageState extends State<MyHomePage> { bool _tapped1 = false; @override Widget build(BuildContext context) { return Scaffold( body: Stack(children: <Widget>[ Column(mainAxisSize: MainAxisSize.max, children: <Widget>[ Expanded( child: Container( child: Opacity( opacity: 0.95, child: FadeInImage( placeholder: MemoryImage(kTransparentImage), image: const AssetImage('assets/carrom.jpg'), fit: BoxFit.cover, )))) ]), Column(children: <Widget>[ Expanded( child: Container( child: Center( child: Container( height: 50, decoration: BoxDecoration( gradient: LinearGradient( begin: Alignment.topLeft, end: Alignment.bottomRight, colors: <Color>[ Colors.black, Colors.red, ], stops: const <double>[0.5, 0.5], )), child: Center( child: Text( 'Flutter Tutorial', textAlign: TextAlign.center, style: TextStyle( color: Colors.white, fontWeight: FontWeight.bold), )))))), Expanded( child: SafeArea( child: Padding( padding: const EdgeInsets.all(40.0), child: Row(children: <Widget>[ Expanded( child: FlatButton( shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(10.0), ), child: Padding( padding: const EdgeInsets.all(10.0), child: Text( 'Start Game', style: TextStyle( color: _tapped1 ? Colors.blue : Colors.white, fontSize: 18.0, ), ), ), color: _tapped1 ? Colors.white : Colors.black.withOpacity(0.25), onPressed: () {})) ])))) ]) ])); } }
pubspec.yaml
name: flutter_ticket_pass description: A new Flutter application. version: 1.0.0+1 environment: sdk: ">=2.1.0 <3.0.0" dependencies: flutter: sdk: flutter cupertino_icons: ^0.1.2 transparent_image: dev_dependencies: flutter_test: sdk: flutter flutter: uses-material-design: true assets: - assets/carrom.jpg
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