style property

TextStyle? style
final

The text style to use for text in the dropdown button and the dropdown menu that appears when you tap the button.

To use a separate text style for selected item when it's displayed within the dropdown button, consider using selectedItemBuilder.

This sample shows a DropdownButton with a dropdown button text style that is different than its menu items.
link

To create a local project with this code sample, run:
flutter create --sample=material.DropdownButton.style.1 mysample

Defaults to the TextTheme.titleMedium value of the current ThemeData.textTheme of the current Theme.

Implementation

final TextStyle? style;