Flutter CachedNetworkImageProvider - How to Show local default image on error? - dart

Question

I would like to show a default local image if CachedNetworkImageProvider fails to get the remote image for some reason:
Container(
width: 80.0,
height: 120.0,
decoration: new BoxDecoration(
shape: BoxShape.rectangle,
image: new DecorationImage(
fit: BoxFit.fill,
image: new CachedNetworkImageProvider(url),
),
),
),

Answer 1

#Abdullah Khan - I ended up with this:
CachedNetworkImage(
imageUrl: url,
placeholder: (context, url) => CircularProgressIndicator(),
errorWidget: (context, url, error) => GestureDetector(
onTap: () {
setAvatar();
},
child: Icon(
Icons.account_circle,
size: 100.0,
color: Theme.of(context).primaryColor,
),
),
imageBuilder: (context, image) => Hero(
tag: 'photo',
child: GestureDetector(
onTap: () {
Get.toNamed(Routes.FULLPHOTO,
arguments: {
'url': url,
'name': photoTitle,
'idx': 0
});
},
child: CircleAvatar(
backgroundImage: image,
radius: size,
),
),
),
),
Get.toNamed comes from the GetX package (great for navigation and state management).

Answer 2

#Kamlesh, something like this?:
Container(
margin: EdgeInsets.only(right: 8, left: 8, top: 8, bottom: 8),
width: 80,
height: 80,
decoration: BoxDecoration(
// borderRadius: BorderRadius.all(Radius.circular(14)),
// color: Colors.blue.shade200,
image: DecorationImage(
fit: BoxFit.contain,
image: CachedNetworkImageProvider(
ipath,
),
),
),
),

Answer 3

You can use the cached network image plugin which has an errorWidget parameter, the installation steps are explained on the link. This is an example implementation of it :
image: new CachedNetworkImage(
imageUrl: "http://via.placeholder.com/350x150",
placeholder: new CircularProgressIndicator(),
errorWidget: new Image.assets('error.jpg'), // This is what you need
fit: BoxFit.fill,
fadeInCurve: Curves.easeIn ,
fadeInDuration: Duration(seconds: 2),
fadeOutCurve: Curves.easeOut,
fadeOutDuration: Duration(seconds: 2),
),
you can notice that it also has other features like placeholder and animations ,so you will have more capabilities to tinker with.