discontinuedPackage unity_widget has been discontinued and replaced by flutter_unity_widget.

dispose method

void dispose()

Implementation

void dispose() {
  html.window.removeEventListener('message', (event) {
    log("message event disposed. ${event.toString()}");
  });
  html.window.removeEventListener('flutter2js', (event) {
    log("flutter2js event disposed. ${event.toString()}");
  });
}