morphicons_flutter library

Morphicons for Flutter: MorphIcon widget, shared ticker scheduler and CustomPainter paint driver on top of the vendored pure-Dart solver.

Classes

MaterialIconPaths: Also expose named constants for direct use in examples / tests.
MorphCanvas: An icon that animates to a new icon using the shared morph scheduler.
MorphCanvasPainter: A controlled painter for a morphing stroked icon.
MorphCanvasState: State and scheduler lifecycle for MorphCanvas.
MorphIcon: An icon that morphs to a new shape when icon changes.
MorphIconState: State of MorphIcon; exposed for the imperative mode: GlobalKey<MorphIconState>().currentState?.morphTo(...) / .set(...).
MorphMask: Clips a child with the alpha of a morphing stroked icon.
MorphMaskState: State and scheduler lifecycle for MorphMask.
MorphPainter: CustomPainter for rendering a morph plan at progress t.
MorphPair: Describes a morph from from to to without owning animation state.
MorphPlan: Frozen correspondence + alignment between two sampled icons.
MorphScheduler: Singleton scheduler that drives all morph animations with a single Ticker.
MorphTween: A ticker-free, plan-backed d-string interpolator.
Spring
SpringPreset: Spring presets (ζ = c/(2√k)) with the API's public names.

buildPlan(List<Sampled> srcSubs, List<Sampled> dstSubs) → MorphPlan: Builds the morph plan between two lists of sampled subpaths. The plan is cacheable and serializable; it accepts any list — including intermediate shapes (interruptions).
canResolveIconData(IconData data) → bool: true if the IconData can be resolved without error.
iconDataToPath(IconData data) → String?: Resolves an IconData to its SVG d if present in the curated table.
iconDataToPathOrThrow(IconData data) → String: Like iconDataToPath but throws with a actionable message.
planBetween(IconInput src, IconInput dst) → MorphPlan: Rest→target plan, cached when both endpoints have stable identity. Plans from intermediate shapes (interruptions passed as strings) are never cached.
springSettled(double x, double v) → bool: Settle condition: |1−x| < 0.001 ∧ |v| < 0.02.

MorphSource = Object: Documentation-only union: String (SVG d) | IconData | IconNode.
SpringTicker = void Function(double dt): A spring that can be stepped by the scheduler.