dart - How do I clear Flutter's image cache?

Question

Flutter has its own internal cache of images. I need to clear that image cache. How do I do that?

Answer 1

Refer to the Flutter docs

/// This is the custom implementation of [ImageCache] where we can override
/// the logic.
class MyImageCache extends ImageCache {
  @override
  void clear() {
    print('Clearing cache!');
    super.clear();
  }
}

class MyWidgetsBinding extends WidgetsFlutterBinding {
  @override
  ImageCache createImageCache() => MyImageCache();
}

void main() {
  // The constructor sets global variables.
  MyWidgetsBinding();
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

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