Card(
semanticContainer: true,
clipBehavior: Clip.antiAliasWithSaveLayer,
child: Image.network( 'https://placeimg.com/640/480/any',fit: BoxFit.fill),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10.0),
),
elevation: 5,
margin: EdgeInsets.all(10),
)
To modify the width or height of a card you can wrap it in a Container Widget and provide height and/or width properties to it.
Please see below your code wrapped with a container set with height at 500:
Container(
height: 500,
child: Card(
semanticContainer: true,
clipBehavior: Clip.antiAliasWithSaveLayer,
child: Image.network(
'https://placeimg.com/640/480/any', fit: BoxFit.fill,),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(10.0),
),
elevation: 5,
margin: EdgeInsets.all(10),
),
),