How do I tell when a NetworkImage has finished loading?

Question

I have a NetworkImage and I\'d like to know when it\'s finished loading. How do I do that?

Answer 1

You can do it, with an ImageStreamListener. The first Parameter of the ImageStreamListener is an ImageListener Callback which is called, when the image is fully loaded.

 var _image = NetworkImage("URL");

 _image.resolve(ImageConfiguration()).addListener(
    ImageStreamListener(
      (info, call) {
        print('Networkimage is fully loaded and saved');
        // do something
      },
    ),
  );