init method

@override void init()

Initialize the Painter (e.g. Load Images)

Implementation

@override
void init() {
  if (!_imagesLoaded && !_startedLoadingImages) {
    _startedLoadingImages = true;
    for (var i = 0; i < images.length; i++) {
      final image = images[i];

      loadImageFromAsset(image,
              ext: jpegImages.contains(image) ? "jpg" : "png")
          .then((result) => _imageMap[image] = result);
    }
  }
}