robb/Cartography
Cartography
Cartography is a declarative layout engine and constraint management framework for Swift. It provides a domain-specific language to define, group, and prioritize user interface layout rules, abstracting the process of positioning and aligning visual components.
The framework distinguishes itself through a fluent API and the use of overloaded operators to define relationships between view attributes. It enables the bundling of multiple layout rules into single units, allowing for the dynamic swapping of constraint groups at runtime to transition views between different positional states.
The toolset covers broad UI layout capabilities including the alignment of element edges and center points, as well as the distribution of sequences of elements with consistent gaps. It manages relative priority mapping to resolve positioning conflicts and automate component resizing across different device sizes.
Features
- iOS UI Layout - Provides a framework for defining the positioning and sizing of user interface elements on iOS.
- Swift Autolayout Development - Simplifies the implementation of Apple's Auto Layout system through a declarative Swift interface.
- Swift UI Constraints Wrappers - Offers a streamlined wrapper interface for managing native UI layout constraints in Swift.
- Swift Auto Layout DSL - Provides a domain-specific language for defining UI constraints directly within Swift code.
- Constraint Layout Engines - Acts as a layout system that calculates component geometry based on dynamic hierarchical constraints.
- Constraint Grouping - Collects multiple layout constraints into single units to swap or update them simultaneously during runtime.
- Constraint Set Swapping - Enables dynamic transitioning of views between different positional states by swapping active constraint groups.
- Declarative Layout Engines - Implements a system for positioning and aligning UI elements through rule-based declarative descriptions.
- Element Positioning - Allows for the programmatic updating of visual component locations at runtime.
- Adaptive Element Distribution - Creates evenly spaced sequences of interface elements with consistent gaps and relative priorities.
- Constraint Priority Assignment - Maps high-level priority definitions to system priorities to resolve layout conflicts.
- Operator-Based Definitions - Uses overloaded Swift operators to define relationships between view attributes with a concise syntax.
- Fluent Constraint APIs - Implements a chainable API to simplify the verbose process of defining geometric constraints.
- Declarative Layout Frameworks - Uses a declarative syntax to specify relationships between element attributes for automated resizing.
- Flexible Layout Constraints - Establishes automatic sizing and anchoring relationships to place components accurately on screen.
- Layout Alignment Utilities - Provides utilities for aligning the edges and center points of multiple UI elements.
- Linear Element Distribution - Spaces sequences of elements horizontally or vertically using a consistent gap between each item.
- Declarative Auto Layout - Provides a declarative syntax for defining auto-layout constraints.
- Example Applications - A declarative DSL for managing layout constraints.
- Layout Frameworks - Declarative DSL for managing Auto Layout constraints.
- UI Layout Tools - Declarative Auto Layout DSL for Swift.
