Steps to Reproduce

Copied from https://stackoverflow.com/questions/48895195/how-can-we-change-the-width-padding-of-a-flutter-dropdownmenuitem-in-a-dropdown

In Flutter, I can build a Dropdown with DropdownMenuItems, like this:

The DropdownMenuItems I add are always wider than the dropdown itself:

How do you adjust the width of the DropdownMenuItem, or remove the extra horizontal padding?

My DropdownMenuItem widget looks like this:

DropdownMenuItem(
    value: unit.name,
    child: Text('hey'),
);

while my Dropdown widget looks like this:

return Container(
    width: 300.0,
    child: DropdownButtonHideUnderline(
      child: DropdownButton(
        value: name,
        items: listOfDropdownMenuItems,
        onChanged: onChanged,
        style: Theme.of(context).textTheme.title,
      ),
    ),
);

Goal is to just have the same width between the Dropdown and the DropdownMenuItems; we don't need to make the width actually adjustable.