ImageItem<T extends Object>.fromImageDataStream constructor

Implementation

ImageItem.fromImageDataStream(
  Stream<ImageData<T>?> image, {
  fallBackWidget = const LoadingView(),
})  : this.tag = UniqueKey(),
      this.fallBackWidget = const LoadingView() {
  _subscription = image.listen((value) {
    this.image = value;
    if (value != null) {
      hidden = false;
      this.tag = value.id;
    } else {
      hidden = true;
      this.fallBackWidget = Center(child: const Icon(Icons.report_problem));
    }
    // debugPrint(this.tag.toString());
    notifyListeners();
  }, onError: (_) {
    hidden = true;
    this.fallBackWidget = Center(child: const Icon(Icons.report_problem));
    notifyListeners();
  });
}