I have a Widget to creat a circular container. I want to place an icon on the buttom right, so I tried to use Positioned to place it where I want but its not moving. Its fixed on the center on the container.
Widget buildImage() {
    return Center(
      child: Container(
        child: Material(
          child: InkWell(
            customBorder:  CircleBorder(),
            onTap: (){},
            child: Container(
              width: 150.0,
              height: 150.0,
              child:  Positioned(
                bottom: 4,
                right: 0,
                child: Icon (Icons.account_circle_rounded),
              ),
            ),
          ),
          color: Colors.transparent,
        ),
        decoration:  BoxDecoration(
          color: Colors.orange,
          shape: BoxShape.circle,
        ),
      ),
    );
  }
What am I doing wrong here?
Your answers are highly appreciated.