powerage-ristoris-flutter/lib/core/responsive.dart

import 'package:flutter/material.dart';

class ResponsiveBreakpoints {
  static const double phone = 600;
  static const double tablet = 900;

  static bool isPhone(BuildContext context) =>
      MediaQuery.of(context).size.width < phone;

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

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

  static EdgeInsets padding(BuildContext context) {
    final w = MediaQuery.of(context).size.width;
    if (w >= tablet) return const EdgeInsets.all(24);
    if (w >= phone) return const EdgeInsets.all(16);
    return const EdgeInsets.all(12);
  }

  static double contentMaxWidth(BuildContext context) {
    final w = MediaQuery.of(context).size.width;
    if (w >= tablet) return w * 0.7;
    return w;
  }
}