Untitled

import 'package:flutter/material.dart';

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

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Metro Me'),
    );
  }
}

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> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  TextField tf1 = const TextField(
    decoration: InputDecoration(
      border: OutlineInputBorder(),
      hintText: 'Start Station',
    ),
  );

  TextField tf2 = const TextField(
    decoration: InputDecoration(
      border: OutlineInputBorder(),
      hintText: 'End Station',
    ),
  );

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.black,
        title: Text(widget.title),
      ),
      body: Center(
        child: Container(
          child: Column(
            children: [
              Padding(
                padding: const EdgeInsets.all(12.0),
                child: tf1,
              ),
              TextButton(
                onPressed: () {
                  print("Swap both values");
                },
                child: const Icon(Icons.change_circle_outlined),
              ),
              Padding(
                padding: const EdgeInsets.all(12.0),
                child: tf2,
              ),
              ElevatedButton(
                  onPressed: () {}, child: const Text("Start Journey")),
            ],
          ),
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}