dart - Flutter network image image not found

Question

My app reads a URL from Firestore. This URL points to an image in Firestorage.

If the image gets deleted in firestorage, the app will continue to try to read the URL...

How can I catch this error?

Thank you in advance!

question from:https://stackoverflow.com/questions/65879440/flutter-network-image-image-not-found

Answer 1

You can get the exception using Image.network() with errorBuilder() named constructor

Here is an example:

Image.network(
        'https://example.does.not.exist/image.jpg',
        errorBuilder:
            (BuildContext context, Object exception, StackTrace? stackTrace) {
          // Appropriate logging or analytics, e.g.
          // myAnalytics.recordError(
          //   'An error occurred loading "https://example.does.not.exist/image.jpg"',
          //   exception,
          //   stackTrace,
          // );
          return Text('e￠');
        },
      ),

Reference Image Widgets errorBuilder Property