set width and height of image flutter code example

Example 1: flutter network image size

Image.network(
          url,
          width: width,
          height: height,
          fit: BoxFit.cover,
        ));

Example 2: flutter image size percentage

MediaQuery.of(context).size.width * 1

Example 3: flutter image size percentage

Expanded(child: Image.asset("assets/mypic.jpg")),