layout_flow 0.2.0

A constraint-driven adaptive layout system for Flutter. Write UI once, let it flow across phones, tablets, and web with smart scaling and responsive tokens.

Changelog

0.2.0

Adaptive & Responsive Features

• FlowGrid: New responsive grid system with automatic column count calculation.
• FlowScaffold: New adaptive shell for switching between Bottom Navigation and Side Rails.
• FlowNavigationBar: Adaptive navigation component that switches between BottomBar and NavigationRail.
• FlowSidebar: Advanced, collapsible desktop-first navigation with nested item support.
• FlowVisibility: New declarative widget to show/hide components based on active breakpoints.
• FlowRow Refactor: Switched to LayoutBuilder by default. Now adapts based on local parent constraints.
• New named constructors: Added FlowRow.orientation() and FlowRow.breakpoint().

Developer Tooling & Ergonomics

• CLI Migration Tool: New dart run layout_flow migrate command to automatically refactor legacy MediaQuery code.
• DevTools Extension: Browser-integrated inspector for live breakpoint and scale factor monitoring.
• FlowDebugOverlay: New interactive, draggable, and collapsible widget to visualize screen metrics in real-time.
• FlowContext Extensions: Added context.flow, context.isCompact, context.isExpanded, etc.
• Padding Support: FlowConfig now captures and provides safe area padding via context.flow.padding.

Customization & Styling

• FlowTheme: Added support for Flutter's ThemeExtension to customize the base spacing grid globally.
• FlowHover: Utility for desktop/web optimized hover effects and custom cursors.
• FlowContainer: Added scaleContent parameter for visual child scaling.
• FlowAdaptiveMode: Support for switching between global screen and local constraint-based scaling.

0.1.0

• Initial release.
• LayoutFlow root wrapper with designSize configuration.
• Basic FlowContainer, FlowRow, and FlowText implementation.
• Static FlowSpacing, FlowRadius, and FlowTextStyle tokens.