corextra

A lightweight Dart package offering handy extensions and utility functions
for common types like String, int, double, List, and more.
Make your Dart and Flutter code cleaner, safer, and easier to read.

Features

Core Extensions

• Extensions on core types for safer parsing and formatting
• Null-safe and concise checks like .isNullOrEmpty on String? and List?
• Convenient conversion helpers: .toTryInt(), .toTryDouble(), .toTryBool()
• String utilities like .capitalize(), .toPascalCase(), .toCamelCase()
• Numeric helpers to sanitize negative values
• Helper functions like isStringEmpty() and isListEmpty() for legacy or functional use
• DateTime extensions for:
  • Parsing from string to DateTime
  • Formatting DateTime to string with customizable formats
• safeSetState:
  • Safely updates widget state only if the widget is still mounted
  • Prevents setState() calls on disposed widgets, reducing runtime errors

Form Validators

• General-purpose form field validators for Flutter TextFormField
• Validators included:
  • required — ensures a field is not empty
  • email — validates email format
  • phone — validates phone numbers with optional mask length
  • otp — validates OTP with customizable length
  • password — validates password with customizable minimum length
  • confirmPassword — ensures password confirmation matches original password
• Optional translation support via easy_localization

Responsive Utilities

• ResponsiveBreakpoints: simple and customizable screen size helpers (xs, sm, md, lg, xl) for responsive layouts in Flutter

Error Handling

• Custom Exception System for structured error handling:
  • CorextraException (base class)
  • CorextraCustomException for generic app-level errors
  • CorextraNetworkException for network-related errors (e.g., Dio, HTTP requests)
• DioErrorHandler:
  • Maps Dio errors to user-friendly messages
  • Throws typed exceptions (CorextraNetworkException)

Logging Utilities

• debugLog:
  • Lightweight, debug-only logger for development builds
  • Supports multiple log levels (info, warning, error)
• AppLogger:
  • Structured logging for app events, Dio requests, responses, and errors
  • Easy integration with existing network layers
  • Optional support for global tokens or custom metadata

Animation Utilities

• FadeSlideTransition:
  • A combined fade + slide transition widget
  • Supports directions: top, bottom, left, right, and custom
  • Built with AnimatedSwitcher for smooth transitions

Getting Started

Add this package to your Dart or Flutter project by adding this line to your pubspec.yaml:

dependencies:
  corextra: ^1.1.4

Then import it in your Dart code:

import 'package:corextra/corextra.dart';