polyline_animation_plus #

A Flutter package for creating smooth, customizable polyline animations on Google Maps. Ideal for apps in transportation, delivery, logistics, tracking, or any project that needs animated route visualizations.

🎥 Demo #

[Polyline animation demo]

✨ Features #

• 🎬 Animated polylines with progressive drawing effects
• 🔁 Repeatable or one‑shot animations
• ⏱️ Custom duration, delay, and animation curves
• 🗺️ Works on Android & iOS (Google Maps)
• 🧩 Supports multiple animated polylines simultaneously
• ⚡ Built using the google_maps_flutter_platform_interface

🚀 Getting Started #

Add the package to your pubspec.yaml:

dependencies:
  polyline_animation_plus: ^1.0.1+1

Or if using locally (for development):

dependencies:
  polyline_animation_plus:
    path: ../polyline_animation_plus

Import it:

import 'package:polyline_animation_plus/polyline_animation_plus.dart';

📌 Usage Example #

Below is a basic example of how to animate a polyline on Google Maps.

final Set<AnimatedPolyline> polylines = {
  AnimatedPolyline(
    polyline: Polyline(
      polylineId: const PolylineId('front'),
      color: Colors.blue,
      width: 4,
      points: MapAnimationUtils.generateEquidistantPolylineByDuration(
        path: yourCoordinatesList,
        duration: const Duration(seconds: 4),
      ),
    ),
    polylineAnimator: const FadeInProgressiveAnimator(
      repeat: true,
      curve: Curves.linear,
      duration: Duration(seconds: 4),
      delayStart: Duration(seconds: 1),
    ),
  ),
  AnimatedPolyline(
    polyline: Polyline(
      polylineId: const PolylineId('back'),
      color: Colors.grey,
      width: 4,
      points: yourCoordinatesList,
    ),
  ),
};

late MapAnimationController mapAnimationController;

onMapCreated(GoogleMapController controller) {
  mapAnimationController = MapAnimationController(
    mapId: controller.mapId,
    vsync: this,
    polylines: polylines,
  );
}

More complete examples can be found in the /example folder.

📚 Additional Information #

• Issues and feature requests: GitHub Issues
• Contributions are welcome! Submit PRs to improve animations or extend support.
• This package is developed by ToolRides for advanced route visualizations in transportation and mobility apps.

📄 License #

MIT License — feel free to use it in commercial and open‑source projects.