network image loading flutter

Image.network( 'https://previews.123rf.com/images/blueringmedia/blueringmedia1701/blueringmedia170100692/69125003-colorful-kite-flying-in-blue-sky-illustration.jpg', loadingBuilder: (BuildContext context, Widget child, ImageChunkEvent loadingProgress) { if (loadingProgress == null) return child; return Center( child: CircularProgressIndicator( value: loadingProgress.expectedTotalBytes != null ? loadingProgress.cumulativeBytesLoaded / loadingProgress.expectedTotalBytes : null, ), ); }, ),

flutter loading images over network

// 1st approach: Circular Progress Indicator with actual bytes loaded
Image.network(imgURL,fit: BoxFit.fill,
  loadingBuilder:(BuildContext context, Widget child,ImageChunkEvent loadingProgress) {
  if (loadingProgress == null) return child;
    return Center(
      child: CircularProgressIndicator(
      value: loadingProgress.expectedTotalBytes != null ? 
             loadingProgress.cumulativeBytesLoaded / loadingProgress.expectedTotalBytes
             : null,
      ),
    );
  },
),

// 2nd approach: Package: cached_network_image:
CachedNetworkImage(
   imageUrl: "http://via.placeholder.com/350x150",
   placeholder: (context, url) => new CircularProgressIndicator(),
   errorWidget: (context, url, error) => new Icon(Icons.error),
 ),
 
 // 3rd approach: FadeInImage 
FadeInImage.assetNetwork(
        placeholder: 'assets/loading.gif',
        image: 'https://picsum.photos/250?image=9',
      ),

Posted by: Guest on September-16-2021

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