import 'package:flutter/material.dart'; Widget buildFirstPage(void Function() nextPage) { return Column( mainAxisSize: MainAxisSize.min, children: [ const Text("Let's add a new property"), const SizedBox(height: 20), const Spacer(), Row( mainAxisAlignment: MainAxisAlignment.center, children: [TextButton(onPressed: nextPage, child: const Text("Next"))], ), ], ); }