I have seen that I can\'t set the width of a RaisedButton in Flutter. If I have well understood, I should put the RaisedButton into a SizedBox
RaisedButton
SizedBox
If you don't want to remove all the button theme set up.
ButtonTheme.fromButtonThemeData( data: Theme.of(context).buttonTheme.copyWith( minWidth: 200.0, height: 100.0,, ) child: RaisedButton( onPressed: () {}, child: Text("test"), ), );