ElevatedButton

import 'package:flutter/material.dart';

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

  @override
  _ButtonElevatedState createState() => _ButtonElevatedState();
}

class _ButtonElevatedState extends State<ButtonElevated> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text("Elevated Buttons")),
      body: Container(
        padding: const EdgeInsets.all(20),
        alignment: Alignment.center,
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceAround,
          children: [
            oneSingleButton(context),
            const SizedBox(height: 100),
            twoAlignedButtons(context),
            const SizedBox(height: 150),
          ],
        )
      )
    );
  }

  Widget oneSingleButton(BuildContext context) {
    return ElevatedButton(
      onPressed: () {
        print("Single button pressed");
      },
      style: ElevatedButton.styleFrom(
          backgroundColor: Colors.blue,
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20.0))
      ),
      child: const Text("Single button")
    );
  }


  Widget twoAlignedButtons(BuildContext context) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceAround,
      children: [
        Expanded(child: cancelButton(context)),
        const VerticalDivider(width: 20),
        Expanded(child: confirmButton(context)),
      ],
    );
  }

  Widget cancelButton(BuildContext context) {
    return ElevatedButton(
        onPressed: () {
          print("Cancel button pressed");
          Navigator.pop(context);
        },
        style: ElevatedButton.styleFrom(
            foregroundColor: Colors.blue,
            backgroundColor: Colors.white,
            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20.0))
        ),
        child: const Text("Cancel")
    );
  }

  Widget confirmButton(BuildContext context) {
    return ElevatedButton(
        onPressed: () {
          print("Confirm button pressed");
        },
        style: ElevatedButton.styleFrom(
            foregroundColor: Colors.white,
            backgroundColor: Colors.blue,
            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20.0))
        ),
        child: const Text("Confirm")
    );
  }

}