Cupertino Button

1

import 'package:flutter/Cupertino.dart';

CupertinoButton(
  onPressed: () {},
  child: const Text('Cupertino Button'),
),

2

import 'package:flutter/Cupertino.dart';

CupertinoButton.filled(
  onPressed: () {},
  child: const Text('Cupertino Button'),
),