Responsive static methods

Responsive.dart

import 'package:flutter/material.dart';

// This size work fine on my design, maybe you need some customization depends on your design

const _desktopMinSize = 1100;
const _tabletMinSize = 740;

class Responsive {

  // This isMobile, isTablet, isDesktop helep us later
  static bool isMobile(BuildContext context) =>
      MediaQuery.of(context).size.width < _tabletMinSize;

  static bool isTablet(BuildContext context) =>
      MediaQuery.of(context).size.width < _desktopMinSize &&
      MediaQuery.of(context).size.width >= _tabletMinSize;

  static bool isDesktop(BuildContext context) =>
      MediaQuery.of(context).size.width >= _desktopMinSize;

}