flutter_svga 0.0.11

A Flutter package for rendering SVGA animations with dynamic customization, smooth playback, and high performance. Actively maintained SVGA player for Flutter with intelligent caching, audio support, [...]

flutter_svga

A Flutter package for parsing and rendering SVGA animations efficiently.
SVGA is a lightweight and powerful animation format used for dynamic UI effects in mobile applications.

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🎯 Why flutter_svga?

✅ Actively Maintained

Unlike svgaplayer_flutter (archived since Feb 2023), flutter_svga is actively maintained with regular updates, bug fixes, and community support.

⚡ High Performance

• Intelligent caching system reduces network usage and load times
• Binary format smaller than JSON-based Lottie files
• Optimized rendering for smooth 60 FPS animations

🎨 Feature-Rich

• Audio playback integrated directly in animations
• Dynamic elements (replace text, images, colors at runtime)
• Full platform support (Android, iOS, Web, macOS, Linux, Windows)

📦 Comparison

Feature	flutter_svga	svgaplayer_flutter	Lottie
Status	✅ Active	❌ Archived (Feb 2023)	✅ Active
Caching	✅ Built-in intelligent cache	❌ No	⚠️ Manual
Audio Support	✅ Integrated	❌ No	✅ Yes
File Size	🟢 Small (binary)	🟢 Small (binary)	🟡 Larger (JSON)
Dynamic Elements	✅ Text, Images, Drawers	⚠️ Limited	✅ Yes
Platform Support	✅ All 6 platforms	⚠️ Mobile only	✅ All platforms
Performance	⚡ Optimized	⚡ Good	⚡ Good

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🔄 Migrating from svgaplayer_flutter

Switching from the archived svgaplayer_flutter is simple:

1. Update Dependencies

dependencies:
  # svgaplayer_flutter: ^2.2.0  # Remove old package
  flutter_svga: ^0.0.11   # Add new package

2. Update Imports

// Old
// import 'package:svgaplayer_flutter/svgaplayer_flutter.dart';

// New
import 'package:flutter_svga/flutter_svga.dart';

3. API Usage (mostly compatible)

The API is similar, with some enhancements:

// Both packages use similar controller patterns
SVGAAnimationController controller = SVGAAnimationController(vsync: this);

// Loading remains the same
final videoItem = await SVGAParser.shared.decodeFromAssets("assets/animation.svga");
controller.videoItem = videoItem;
controller.repeat();

🎉 Bonus: You now get automatic caching, audio support, and better performance with zero code changes!

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🚀 Features

✔️ Parse and render SVGA animations in Flutter.
✔️ Load SVGA files from assets and network URLs.
✔️ Intelligent caching system for faster loading and reduced network usage.
✔️ Supports custom dynamic elements (text, images, animations).
✔️ Optimized playback performance with animation controllers.
✔️ Integrated audio playback within SVGA animations.
✔️ Works on Android & iOS (Web & Desktop support coming soon).
✔️ Easy loop, stop, and seek functions.

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📌 Installation

Add flutter_svga to your pubspec.yaml:

dependencies:
  flutter_svga: ^0.0.11

Then, install dependencies:

flutter pub get

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🎬 Basic Usage

✅ Playing an SVGA Animation from Assets

import 'package:flutter/material.dart';
import 'package:flutter_svga/flutter_svga.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text("Flutter SVGA Example")),
        body: Center(
          child: SVGAEasyPlayer(
            assetsName: "assets/sample_with_audio.svga",
            fit: BoxFit.contain,
          ),
        ),
      ),
    );
  }
}

---

🌍 Playing SVGA from a Network URL

SVGAEasyPlayer(
  resUrl: "https://example.com/sample.svga",
  fit: BoxFit.cover,
);

---

🎭 Advanced Usage: Using SVGAAnimationController

✅ Controlling Animation Playback

class MySVGAWidget extends StatefulWidget {
  @override
  _MySVGAWidgetState createState() => _MySVGAWidgetState();
}

class _MySVGAWidgetState extends State<MySVGAWidget>
    with SingleTickerProviderStateMixin {
  late SVGAAnimationController _controller;

  @override
  void initState() {
    super.initState();
    _controller = SVGAAnimationController(vsync: this);
    SVGAParser.shared.decodeFromAssets("assets/sample.svga").then((video) {
      _controller.videoItem = video;
      _controller.repeat();
    });
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return SVGAImage(_controller);
  }
}

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🎨 Customization & Dynamic Elements

✅ Adding Dynamic Text

controller.videoItem!.dynamicItem.setText(
  TextPainter(
    text: TextSpan(
      text: "Hello SVGA!",
      style: TextStyle(color: Colors.red, fontSize: 18),
    ),
    textDirection: TextDirection.ltr,
  ),
  "text_layer",
);

---

✅ Replacing an Image Dynamically

controller.videoItem!.dynamicItem.setImageWithUrl(
  "https://example.com/new_image.png",
  "image_layer",
);

---

✅ Hiding a Layer

controller.videoItem!.dynamicItem.setHidden(true, "layer_to_hide");

---

🗄️ Caching (New!)

Automatic performance optimization with zero breaking changes:

// Caching works automatically - no code changes needed!
final animation = await SVGAParser.shared.decodeFromURL(
  "https://example.com/animation.svga"
);

// Optional: Configure cache settings
SVGACache.shared.setMaxCacheSize(50 * 1024 * 1024); // 50MB
SVGACache.shared.setMaxAge(const Duration(days: 3)); // 3 days

// Optional: Manage cache
await SVGACache.shared.clear(); // Clear all cache
final stats = await SVGACache.shared.getStats(); // Get cache info

📋 See CACHE.md for complete caching documentation and examples.

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🎯 Playback Controls

controller.forward();  // Play once
controller.repeat();   // Loop playback
controller.stop();     // Stop animation
controller.value = 0;  // Reset to first frame

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🛠 Common Issues & Solutions

❌ Black Screen when Loading SVGA

✅ Solution: Ensure your svga files are correctly placed inside assets/ and registered in pubspec.yaml.

flutter:
  assets:
    - assets/sample.svga

---

❌ SVGA Not Loading from Network

✅ Solution: Ensure the SVGA file is accessible via HTTPS. Test the URL in a browser.

SVGAEasyPlayer(
  resUrl: "https://example.com/sample.svga",
  fit: BoxFit.cover,
);

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❌ Animation Freezes or Doesn't Play

✅ Solution: Use setState after loading SVGA to rebuild the widget.

setState(() {
  _controller.videoItem = video;
});

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📱 Supported Platforms

Platform	Supported	Audio Support
✅ Android	✔️ Yes	✔️ Yes
✅ iOS	✔️ Yes	✔️ Yes
✅ Linux	✔️ Yes	✔️ Yes
✅ Web	✔️ Yes	❌ No
✅ macOS	✔️ Yes	✔️ Yes
✅ Desktop	✔️ Yes	✔️ Yes

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🔄 Changelog

See the latest changes in CHANGELOG.md.

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📜 License

This package is licensed under the MIT License. See LICENSE for details.

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🤝 Contributing

• If you find a bug, report it here.
• Pull requests are welcome! See CONTRIBUTING.md for guidelines.

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👨‍💻 Authors & Contributors

🏗 Core Author

• 5alafawyyy — Lead Developer, Maintainer, and Flutter Integration Engineer.

🤝 Contributors

Special thanks to the amazing contributors who improved flutter_svga:

Contributor	Contribution	GitHub
wonderkidshihab	Fixed repeated music playback bug (#3)	🧩
Sansuihe	Identified and proposed MD5-based fix for audio cache collision (#6)	🎵
tungpham6195	Reported protobuf dependency compatibility issue (#7)	📦

Want to contribute? Read CONTRIBUTING.md and submit your PR — we’d love your help!

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🚀 Enjoy using SVGA animations in your Flutter app! 🚀