fromAssetImage static method

Future<BitmapDescriptor> fromAssetImage(ImageConfiguration configuration, String assetName, { AssetBundle? bundle, String? package, bool mipmaps = true, })

Creates a BitmapDescriptor from an asset image.

Asset images in flutter are stored per: https://flutter.dev/docs/development/ui/assets-and-images#declaring-resolution-aware-image-assets This method takes into consideration various asset resolutions and scales the images to the right resolution depending on the dpi.

Implementation

static Future<BitmapDescriptor> fromAssetImage(
  ImageConfiguration configuration,
  String assetName, {
  AssetBundle? bundle,
  String? package,
  bool mipmaps = true,
}) async {
  if (!mipmaps && configuration.devicePixelRatio != null) {
    return BitmapDescriptor._(<dynamic>[
      'fromAssetImage',
      assetName,
      configuration.devicePixelRatio,
    ]);
  }
  final AssetImage assetImage =
      AssetImage(assetName, package: package, bundle: bundle);
  final AssetBundleImageKey assetBundleImageKey =
      await assetImage.obtainKey(configuration);
  return BitmapDescriptor._(<dynamic>[
    'fromAssetImage',
    assetBundleImageKey.name,
    assetBundleImageKey.scale,
  ]);
}