how to add icon at right side of RaisedButton?

Question

How to add icon to RaisedButton at the right side

Padding(
       padding: const EdgeInsets.only(top: 15.0),
          child: new SizedBox(
             width: double.infinity,
             child: new RaisedButton(
             textColor: Colors.white,
             color: coloraccent,
             onPressed: () {},
             child: const Text('UPADATE'),
        )),
       ),

Answer 1

You can just wrap your RaisedButton.icon to the Directionality widget:

                    Directionality(
                      textDirection: TextDirection.rtl,
                      child: RaisedButton.icon(
                        onPressed: () {},
                        color: Colors.deepPurple,
                        icon: Icon(
                          Icons.arrow_drop_down,
                          color: Colors.white,
                        ),
                        label: Text(
                          "Category",
                          style: TextStyle(color: Colors.white),
                        ),
                      ),
                    )

Answer 2

You can try this out, it works fine for me.

  child: RaisedButton(
                    onPressed: () => navigateToLogin(context),
                    child: Row(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: <Widget>[
                        Text("Continue",style: TextStyle(fontSize: 20)),
                        Icon(Icons.navigate_next)                          
                      ],
                    ),