gskinner/flutter_animate
Flutter Animate
This library is a declarative framework for creating complex motion sequences and visual transitions within Flutter applications. It provides a unified interface for orchestrating interface element transformations, property updates, and animation lifecycles without requiring manual controller management or boilerplate code.
The framework distinguishes itself through a fluent builder pattern that allows developers to chain multiple independent motion effects into a single execution pipeline. It supports advanced visual customization by integrating custom fragment shaders for GPU-accelerated rendering and provides mechanisms to synchronize animation progress with external data sources, such as scroll positions or user input events.
The system covers a broad range of motion capabilities, including staggered collection animations, interpolation-based property mapping, and automated state-driven transitions. It also includes utilities for executing custom logic via callbacks at specific points during a sequence to coordinate application state changes. The library is distributed as a package with documentation and examples for implementing responsive visual feedback across mobile and desktop platforms.
Features
- Flutter - Provides a declarative framework for creating complex motion sequences and visual transitions specifically for the Flutter ecosystem.
- Declarative UI Motion Frameworks - Orchestrates staggered animations, property transitions, and custom shader effects without manual controller management.
- Bespoke Animation Builders - Provides builder functions to define custom motion behaviors and unique transitions that change over time.
- Fluent Builders - Constructs complex animation sequences using a chainable, declarative method-based syntax.
- Fragment Shader Rendering - Applies complex visual effects and custom textures to interface components using GPU-accelerated fragment shaders.
- State Transition Animators - Updates component properties automatically when state changes occur to create smooth visual transitions.
- Motion Effect Pipelines - Combines multiple independent motion effects into a single execution pipeline for parallel or sequential playback.
- Implicit Animations - Handles animation lifecycle, timing, and interpolation automatically without requiring manual controller boilerplate.
- Interactive Motion Drivers - Synchronizes animation progress with external data sources like scroll positions or user input events.
- External Driver Synchronization - Links animation playback state to external data streams for interactive, scroll-driven visual feedback.
- Animation Lifecycle Management - Controls the timing, playback, and initialization triggers of motion sequences to ensure animations start, loop, or reset correctly.
- Cross-Platform UI Toolkits - Provides builders and effects for implementing responsive visual feedback across mobile and desktop platforms.
- Animation Sequencing - Coordinates the timing and order of multiple concurrent animation effects into a single execution sequence.
- Staggered Animations - Offsets the start time of individual elements within a collection to create cascading staggered motion effects.
- Interpolation Mappings - Maps normalized time values to specific visual properties using configurable easing curves.
- Visual Element Transforms - Applies scaling, rotation, and color shifts to visual components through a unified programming interface.
