airbnb/lottie-ios
Lottie Ios
lottie-ios is a vector graphics engine and animation framework for iOS that renders animations exported from After Effects as native visual elements. It functions as a renderer that converts animation data into high-fidelity native shapes to maintain small file sizes on mobile devices.
The framework provides tools for managing playback, looping, and real-time property updates. It allows for the modification of colors, positions, and keyframe properties of active animations to respond to application state changes.
The system parses JSON-based animation data and maps keyframes to native layers for hardware-accelerated drawing. It covers capabilities for animation playback control, keyframe-based interpolation, and the synchronization of frame updates with the system display refresh rate.
Features
- After Effects Renderers - Renders high-quality vector animations exported from After Effects as native elements on iOS.
- Native Layer Renderers - Translates animation keyframes into native Core Animation layers for hardware-accelerated drawing and smooth motion.
- Vector Graphics Renderers - Converts animation data into high-fidelity native shapes to maintain small file sizes.
- iOS Animation Frameworks - Provides a comprehensive toolset for controlling playback and real-time property updates of vector graphics on iOS.
- Animation Playback Controls - Provides programmatic control over animation playback, including playing, looping, and scrubbing the timeline.
- Keyframe Animations - Calculates intermediate states between keyframes using mathematical curves to produce fluid movement.
- Vector Asset Optimizations - Uses lightweight vector data instead of large video files to maintain high fidelity while reducing app size.
- Dynamic Property Updaters - Synchronizes animation attributes to native view properties dynamically during playback.
- Runtime Property Modifiers - Allows real-time updating of colors and positions in active animations to respond to application state changes.
- Interactive Graphics - Enables interactive control of vector graphics playback and speed for responsive user experiences.
- State-Driven Animations - Updates animation properties like colors and positions in real time to reflect changes in application state.
- Animation Frameworks - Renders vector-based animations in real-time.
- Developer Utilities And Workflow - Native renderer for After Effects vector animations on iOS.
- UI Components and Widgets - Render After Effects animations natively on iOS.
- Animation and UI - Native renderer for vector animations exported from design tools.
- Animation & Transitions - Renders After Effects vector animations natively on iOS.
