Initial release of Advance Cart Stepper.

Features #

• CartStepper Widget - Expandable cart quantity stepper with smooth animations
• Size Variants - Compact (32px), Normal (40px), and Large (48px) presets
• Add-to-Cart Styles - Circle icon, text buttons, and customizable configurations
• Async Support - Built-in loading indicators with 15+ SpinKit animations
• Optimistic Updates - Instant UI feedback with automatic error revert
• Debounce Mode - Batch rapid changes into single API calls
• Error Handling - onError callback and errorBuilder for inline error display
• Validation - Custom validators with rejection callbacks
• Long Press - Hold buttons for rapid increment/decrement
• Auto-Collapse - Collapse to badge view after inactivity
• Quantity Formatters - Built-in abbreviation (1.5k, 2M) and max indicators (99+)
• Manual Input - Tap quantity to type directly with keyboard
• Theming - CartStepperTheme for consistent styling across widgets
• Haptic Feedback - Optional haptics on button interactions
• Theme-Aware Colors - CartBadge uses theme colors by default

Components #

• CartStepper - Main stepper widget
• CartStepperController - External state management with ChangeNotifier
• CartBadge - Display count badges on icons
• CartStepperGroup - Horizontal variant selection with generic type support
• CartProductTile - Complete product tile with integrated stepper
• ThemedCartStepper - Theme-aware stepper variant
• AnimatedCounter - Standalone animated number display
• StepperButton - Reusable button with long-press support

Configuration Classes #

• CartStepperStyle - Colors, borders, typography customization
• CartStepperAnimation - Duration, curves, haptics configuration
• CartStepperLoadingConfig - Loading indicator type and behavior
• AddToCartButtonConfig - Initial button appearance and behavior
• CartStepperGroupItem - Generic item with required id for stable keys