有人知道如何启用/禁用颤振ElevatedButton吗?我已经查看了文档,但是我看不到任何显而易见的东西。
class IcoButton extends StatelessWidget {
IcoButton(
{@required this.lbl,
@required this.col,
@required this.ico,
@required this.onPress});
final String lbl;
final FaIcon ico;
final MaterialColor col;
final F