How to upload pic from assets? - flutter

Question

I am using below code to upload the pic from gallery in flutter, if in case the pic is not picked up from the gallery I want the pic from the assets to be uploaded to the firebase storage, for that avatarImageFile should be equivalent to the image file from the assets.
How Can I achieve that?
Future getImage() async {
print("get image");
PickedFile image = await _picker.getImage(source: ImageSource.gallery);
if (image != null) {
setState(() {
final File file = File(image.path);
avatarImageFile = file;
isLoading = true;
});
}
else{
//if image is null then the image from the assets should be made picked into `avatarImageFile `
}
}

Answer 1

In Flutter you can load your assets in two ways:
Using rootBundle.loadString("assets/my_file.json") to load text files
Using rootBundle.load("assets/something.png") to load any kind of file (images, pdf or any other kind of binary).
Note that load also works with .json files but in general loadString is a better choice when it comes to retrieving text. For more info, read the doc.
avatarImageFile = await rootBundle.load("assets/a/b/c.png");
Do not use rootBundle when you're inside widgets: instead, prefer using DefaultAssetBundle:
class MyWidget extends StatelessWidget {
const MyWidget();
Future<String> loadConfig(BuildContext context) async =>
await DefaultAssetBundle
.of(context)
.loadString("myassets/some_cfg.json");
#override
Widget build(BuildContext context) {...}
}
Again, do the above when you're inside widgets. In any other case, go for rootBundle.