import 'package:flutter/material.dart'; class MyButton extends StatelessWidget { const MyButton({ Key? key, this.text = '', @required this.onPressed, }) : super(key: key); final String? text; final VoidCallback? onPressed; @override Widget build(BuildContext context) { return FlatButton( onPressed: onPressed, textColor: Colors.white, child: Container( height: 48, width: double.infinity, alignment: Alignment.center, child: Text( text!, style: TextStyle( fontSize: 18, ), ))); } }