Added #

• Configurable Baseline Dimensions

  • Added baselineScreenWidth and baselineScreenHeight to ResponsiveConfig
  • Added platform-optimized baseline constants to ResponsiveConstants:
    • baselineScreenWidth and baselineScreenHeight (default 375x812)
    • materialDesignBaselineWidth and materialDesignBaselineHeight (360x800)
    • cupertinoBaselineWidth and cupertinoBaselineHeight (375x812)
    • androidBaselineWidth and androidBaselineHeight (360x640)
    • webBaselineWidth and webBaselineHeight (1920x1080)
    • tabletBaselineWidth and tabletBaselineHeight (768x1024)

• ResponsiveConfig Factory Constructors

  • ResponsiveConfig.materialDesign() - Material Design 3 optimized baseline
  • ResponsiveConfig.cupertino() - iOS/Cupertino design baseline
  • ResponsiveConfig.androidFirst() - Android-first design baseline
  • ResponsiveConfig.webOptimized() - Web/desktop optimized baseline

• Baseline Examples Utility

  • BaselineExamples class with comprehensive baseline configuration examples
  • Comparison methods to demonstrate scaling differences
  • Best practice recommendations based on app type
  • Interactive comparison widget for debugging

• Documentation

  • BASELINE_DIMENSIONS.md - Comprehensive guide on baseline configurations
  • Migration guide from hardcoded values
  • Performance considerations and best practices

Changed #

• Breaking Change (Backward Compatible): Replaced hardcoded iPhone dimensions (375x812) with configurable baseline dimensions
  • responsiveWidth() now uses config.baselineScreenWidth instead of hardcoded 375.0
  • responsiveHeight() now uses config.baselineScreenHeight instead of hardcoded 812.0
  • Default configuration maintains original iPhone baseline for backward compatibility

Improved #

• Design System Flexibility: Apps can now choose baselines that match their target platform
• Cross-Platform Optimization: Better scaling results for Android, web, and desktop platforms
• Configuration Architecture: More consistent use of constants throughout the codebase

Performance #

• No Runtime Impact: Baseline values are set at configuration time with no performance penalty
• Maintained Caching: All existing performance optimizations continue to work

Migration #

• Existing Apps: Continue to work without changes (default maintains iPhone baseline)
• Recommended: Update to use platform-appropriate baselines:
  • Android/Material apps: Use ResponsiveConfig.materialDesign()
  • iOS apps: Use ResponsiveConfig.cupertino()
  • Web/Desktop apps: Use ResponsiveConfig.webOptimized()

Added #

• Core Architecture

  • IResponsiveAdaptiveManager - Abstract interface for dependency inversion
  • ResponsiveAdaptiveManager - Singleton concrete implementation
  • Complete dependency injection support with abstract interface pattern

• Data Models (extending BaseDataModel from flutter_shared_utilities)

  • ResponsiveConfig - Configuration for responsive behavior
  • AdaptiveBreakpoints - Breakpoint definitions with custom support
  • ResponsiveSettings - Comprehensive settings management
  • DeviceInfo - Device information with platform detection

• Enums for Type Safety

  • DeviceType - Mobile, tablet, desktop, ultra-wide, foldable, watch, TV
  • ScreenSize - Extra small to extra large with comparison methods
  • OrientationType - Portrait, landscape, square with detection
  • PlatformType - iOS, Android, Web, Windows, macOS, Linux, Fuchsia

• Responsive Calculations

  • Dynamic width and height scaling based on screen size
  • Intelligent font size scaling with accessibility support
  • Responsive spacing, padding, and margin calculations
  • Border radius and icon size scaling
  • Platform-specific scaling factors

• Percentage-Based Layouts

  • Screen width and height percentage calculations
  • Safe area percentage support for notch-aware layouts
  • Responsive container sizing

• Adaptive Layout System

  • Screen size-based adaptive values with fallbacks
  • Device type-based column count adaptation
  • Aspect ratio adaptation for different devices
  • Layout helper methods for navigation patterns

• Breakpoint Management

  • Default breakpoint definitions (320, 480, 768, 1024, 1440)
  • Custom breakpoint support with named breakpoints
  • Breakpoint comparison methods (larger than, smaller than)
  • Screen size navigation (next larger/smaller)

• Platform Integration

  • Automatic platform detection and handling
  • Platform-specific spacing and font size adjustments
  • Safe area handling with insets support
  • MediaQuery integration for responsive media queries

• Accessibility Support

  • System accessibility settings integration
  • High contrast mode detection
  • Reduce motion support for animations
  • Bold text preference handling
  • Minimum touch target size enforcement
  • Accessible font size and spacing calculations

• Performance Optimizations

  • Intelligent caching system for responsive calculations
  • Cache statistics and management (hits, misses, size)
  • Configurable cache size limits with automatic cleanup
  • Lazy loading of device information
  • Efficient event listener management

• Animation Support

  • Responsive animation duration scaling
  • Platform-appropriate animation curves
  • System reduce motion integration
  • Animation enable/disable based on settings and accessibility

• Event System

  • Device info change listeners
  • Settings change listeners
  • Error handling for listener callbacks
  • Automatic cleanup on disposal

• Debug and Development Tools

  • Debug mode with comprehensive logging
  • Detailed debug information export
  • Responsive calculation logging
  • Cache statistics monitoring
  • Performance metrics tracking

• Widget Builders

  • buildResponsive() - Screen size-based widget building
  • buildAdaptive() - Device type-based widget building
  • Safe area widget wrapping
  • Responsive media query application

• Constants and Utilities

  • Comprehensive responsive constants
  • Default breakpoint values
  • Platform-specific constants (iOS safe areas, Android status bar)
  • Touch target size guidelines
  • Typography and spacing scales

Features #

• Cross-Platform Support: iOS, Android, Web, Windows, macOS, Linux
• Device Detection: Automatic detection with manual override support
• Responsive Design: Intelligent scaling across all screen sizes
• Adaptive Layouts: Dynamic layout switching based on context
• Accessibility: Full system accessibility integration
• Performance: Optimized calculations with intelligent caching
• Customization: Extensive configuration options
• Developer Experience: Comprehensive debugging and logging tools

Implementation Details #

• Uses flutter_shared_utilities for safe parsing and BaseDataModel
• Singleton pattern for global access with proper dependency injection
• Comprehensive error handling with stack trace preservation
• Memory-efficient caching with automatic cleanup
• Type-safe enum comparisons and conversions
• Platform-aware calculations and adjustments

Breaking Changes #

• This is the initial release, no breaking changes from previous versions

Migration Guide #

• For new projects: Follow the Quick Start guide in README.md
• Integration requires minimal setup with default configurations available
• All methods are documented with comprehensive examples

Dependencies #

• flutter_shared_utilities: ^1.0.11
• Flutter SDK: >=3.19.0
• Dart SDK: ^3.8.1

Documentation #

• Complete README.md with setup instructions and usage examples
• Comprehensive API reference with all methods documented
• Advanced usage examples for custom configurations
• Performance guidelines and best practices
• Accessibility implementation guide