Flutter how to handle Image.network error (like 404 or wrong url)

Solution 1:

I have handled the network image issue related to 404 by using an errorBuilder.

Image.network('Your image url...',
    errorBuilder: (BuildContext context, Object exception, StackTrace stackTrace) {
        return Text('Your error widget...');
    },
),

errorBuilder property

Solution 2:

UPDATE: Look at the new accurate way which uses an inbuilt method, answered by @Niraj Phutane here which requires no plugins.

outdated old answer (before errorbuilder existed)

I recommend using cached_network_image which gives an option to add a placeholder image and also an error widget in case of a 404 or 403.

CachedNetworkImage(
   imageUrl: "http://via.placeholder.com/350x150",
   placeholder: (context, url) => new CircularProgressIndicator(),
   errorWidget: (context, url, error) => new Icon(Icons.error),
),

Solution 3:

Instead of Network.image use NetworkImageWithRetry

https://pub.dartlang.org/documentation/flutter_image/latest/

Example:

var avatar = Image(
  image: NetworkImageWithRetry('http://example.com/avatars/123.jpg'),
);