lottie_thorvg

Description:

lottie thorvg

Lottie ThorVG for Flutter #

Warning
This project had been deprecated and moved to a new repository, which is now primarily maintained by offical ThorVG Team. Please visit thorvg.flutter for further information.

This Lottie for Flutter uses ThorVG as a renderer, provides a high performance and compact size.

🖼️ Supports Lottie animation (JSON)
👑 Based on C++ Native Function
🍃 Lower CPU & Memory usage
⚡ Higher frame rates

Usage #
lottie-thorvg aims to maintain the same interface as lottie-flutter. If you are currently using them, you can utilize the code by simply replacing the import statement with import 'package:lottie_thorvg/lottie_thorvg.dart'.
import 'package:lottie_thorvg/lottie_thorvg.dart';
// ...
class MyApp extends StatelessWidget {
const MyApp({super.key});

@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Column(
children: [
// Load a Lottie animation from the assets
Lottie.asset('assets/lottie/dancing_star.json'),

// Load a Lottie animation from a url
Lottie.network(
'https://lottie.host/6d7dd6e2-ab92-4e98-826a-2f8430768886/NGnHQ6brWA.json'
),
],
),
),
);
}
}
copied to clipboard
Known Issues #

Warning
As an experimental project, we anticipate the following issues may render the use of this library unstable. Please verify before using lottie-thorvg.

iOS #
Unexpected white background rendered (#2)
This seems to be appeared by the Impeller renderer, affecting rendered canvas that has unexpected white background.
Workaround:

Open Info.plist
Turn off Impeller by adding:
<key>FLTEnableImpeller</key>
<false/>
copied to clipboard


Apple Silicon simulator build error (#4)
Currently, ThorVG Flutter iOS binding operates with a dylib. To support universal dynamic library, We should transition to using xcframework. However dart-ffi faces an issue where it can't open dynamic libraries through the xcframework.
It only triggers an error when buliding on iOS Simulator under Apple Silicon.
Workaround:

If you're using mac OS(Intel), no effects
Do use iOS Simulator by rosetta
It won't effect to real device & store uploading

License #
MIT