swagger/lib/main.dart

import 'package:english_words/english_words.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: 'TelNow Lat',
        theme: ThemeData(
          useMaterial3: true,
          colorScheme: ColorScheme.fromSeed(seedColor: Color.fromARGB(255, 0, 255, 255)),
        ),
        home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    
    return Scaffold(
      backgroundColor: Theme.of(context).colorScheme.primaryContainer,
      body: Column(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        children: [
          Lang(),
          Expanded(child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              Judul(),
            ],
          ),),
          Text('Silakan pindai QR terlebih dulu untuk mulai menggunakan aplikasi.', softWrap: true,),
          Expanded(            
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Pindai(),
              ],
            ),
          ),
          Footer(),
          Container(
            color: Theme.of(context).colorScheme.primaryContainer,
          )
        ],
      ),
    );
  }
}

class Lang extends StatefulWidget {
  const Lang({
    Key? key,
  }) : super(key: key);

  @override
  State<Lang> createState() => _LangState();
}

class _LangState extends State<Lang> {

var selectedIndex = 0;

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(8.0),
      child: Row(            
        children: [
          Expanded(child: SizedBox(width: 1,)),
          ElevatedButton(onPressed: (){print('EN');}, child: Text('EN')),
          ElevatedButton(onPressed: (){print('ID');}, child: Text('ID'))
        ],        
      ),
    );
  }
}

class Judul extends StatelessWidget {
  const Judul({
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    var theme = Theme.of(context);
    var style = theme.textTheme.displayMedium!.copyWith(
      color: Colors.orange,
      );

    return Column(
      children: [
        Text('TelNow', style: style),
      ],
    );
  }
}

class Pindai extends StatelessWidget {
  const Pindai({
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(20),      
        child: TextButton(
          onPressed: () {
            print('QR pressed!');
          }, 
          child: Text('Pindai QR'),
          ),
      ),
    );
  }
}

class Footer extends StatelessWidget {
  const Footer({
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        Text('Kebijakan Privasi'),
        Text('Versi 4.0.0.0'),
      ],
    );
  }
}