Paint a circular image with border

NetworkImage is the class you are looking for.

           Container(
             width: 100.0,
             height: 100.0,
             decoration: BoxDecoration(
               color: const Color(0xff7c94b6),
               image: DecorationImage(
                 image: NetworkImage('http://i.imgur.com/QSev0hg.jpg'),
                 fit: BoxFit.cover,
               ),
               borderRadius: BorderRadius.all( Radius.circular(50.0)),
               border: Border.all(
                 color: Colors.red,
                 width: 4.0,
               ),
             ),
           ),