Flutter-crypto-wallet-09.dart

  Positioned(
              bottom: MediaQuery.of(context).size.height * .37,
              left: MediaQuery.of(context).size.width * .05,
              child: RaisedButton(
                  // padding: EdgeInsets.all(20),
                  padding: EdgeInsets.symmetric(
                    vertical: 18.0,
                    horizontal: 38.0,
                  ),
                  color: Color(0xFFEE112D),
                  onPressed: () {},
                  shape: new RoundedRectangleBorder(
                      borderRadius: new BorderRadius.circular(25.0)),
                  child: Text(
                    "Send",
                    style: TextStyle(
                      fontSize: 18.0,
                      color: Colors.white,
                      fontWeight: FontWeight.bold,
                    ),
                  )),
            ),
            Positioned(
              bottom: MediaQuery.of(context).size.height * .37,
              right: MediaQuery.of(context).size.width * .05,
              child: RaisedButton(
                  padding: EdgeInsets.symmetric(
                    vertical: 18.0,
                    horizontal: 30.0,
                  ),
                  color: Color(0xFFEE112D),
                  onPressed: () {},
                  shape: new RoundedRectangleBorder(
                      borderRadius: new BorderRadius.circular(25.0)),
                  child: Text(
                    "Receive",
                    style: TextStyle(
                      fontSize: 18.0,
                      color: Colors.white,
                      fontWeight: FontWeight.bold,
                    ),
                  )),
            ),
            Positioned(
              bottom: MediaQuery.of(context).size.height * .43,
              left: MediaQuery.of(context).size.width * .30,
              child: RaisedButton(
                  padding: EdgeInsets.symmetric(
                    vertical: 18.0,
                    horizontal: 38.0,
                  ),
                  color: Color(0xFFEE112D),
                  onPressed: () {},
                  shape: new RoundedRectangleBorder(
                      borderRadius: new BorderRadius.circular(25.0)),
                  child: Text(
                    "Exchange",
                    style: TextStyle(
                      fontSize: 18.0,
                      color: Colors.white,
                      fontWeight: FontWeight.bold,
                    ),
                  )),
            ),
            Positioned(
              bottom: MediaQuery.of(context).size.height * .33,
              left: MediaQuery.of(context).size.width * .40,
              child: FloatingActionButton(
                backgroundColor: Colors.white,
                onPressed: null,
                child: Icon(
                  Icons.close,
                  color: Colors.black,
                ),
              ),
            ),