loadImage function

Future<Image?> loadImage(ImageProvider<Object>? provider)

Asynchronously loads an image from an ImageProvider. Returns a ui.Image that can be used for drawing, or null if no image provider is given.

Implementation

Future<ui.Image?> loadImage(ImageProvider? provider) async {
  if (provider == null) return null;
  final completer = Completer<ui.Image>();
  final imageStream = provider.resolve(ImageConfiguration.empty);
  final listener = ImageStreamListener(
    (ImageInfo info, bool synchronousCall) {
      completer.complete(info.image); // Completes with the loaded image
    },
    onError: (exception, stackTrace) {
      throw exception; // Propagate errors
    },
  );
  imageStream.addListener(listener); // Start loading the image
  return completer.future; // Return a future that completes when the image is loaded
}