How to make the design using widget in Flutter - flutter

Question

If we click on the "Is there an Bitcode Method iOS App?" then the answer should be shown. So I have tried using card in flutter but it's not working. So you can tell me this how to make it?
enter image description here

Answer 1

This may help. If you have any requirements or confusion, please consider commenting.
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
bool showAnswer = false;
String answer =
"At this point, there is no Mobile app on ios or Android. It is available on the trading website and can be accessed via the web on a mobile or laptop.";
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
GestureDetector(
onTap: () {
setState(() {
showAnswer = true;
});
},
child: Container(
height: MediaQuery.of(context).size.height * 0.1,
width: MediaQuery.of(context).size.width,
decoration: const BoxDecoration(
color: Colors.red,
gradient: LinearGradient(
transform: GradientRotation(1.2),
colors: [Colors.redAccent, Colors.blueAccent],
),
borderRadius: BorderRadius.only(
topRight: Radius.circular(20),
topLeft: Radius.circular(20),
),
),
child: const Center(
child: Text(
'Is there an Bitcode Method iOS App?',
style: TextStyle(
color: Colors.black54,
fontWeight: FontWeight.w600,
fontSize: 16,
),
),
),
),
),
(showAnswer)
? Container(
height: MediaQuery.of(context).size.height * 0.2,
width: MediaQuery.of(context).size.width,
padding: const EdgeInsets.symmetric(horizontal: 8),
decoration: BoxDecoration(
color: Colors.grey.withOpacity(0.3),
borderRadius: const BorderRadius.only(
bottomRight: Radius.circular(20),
bottomLeft: Radius.circular(20),
),
),
child: Center(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
answer,
textAlign: TextAlign.center,
style: const TextStyle(
color: Colors.black54,
fontWeight: FontWeight.w600,
fontSize: 16,
height: 1.5,
),
),
),
),
)
: SizedBox(
height: MediaQuery.of(context).size.height * 0.2,
)
],
),
),
);
}
}