Enhanced Enums cause Flutter app to hang when used in widget

August 22, 2022

I am trying to upgrade my code to use the new enhanced enum feature of dart 2.17 and flutter 3.0.5.

Here is my enum:

enum Permission {
  first(1, "first"),
  second(2, "second");

  const Permission(this.id, this.name);

  final int id;
  final String name;
}

Usage, called in build() of a stateful widget:

String name = Permission.first.name;

When I run my program everything compiles and I get no error messages, but the program hangs on a white screen and constantly reloads, never making it to the home screen. If I comment out the line where I access the name of the permission, everything loads and runs properly. Not sure why accessing the enum property causes the program to break. Any reason this is happening?

>Solution :

Don’t use name as a filed on enum. It is already having a .name extension on enum.

enum Permission {
  first(1, "first"),
  second(2, "second");

  const Permission(this.id, this.value);

  final int id;
  final String value; //change it to something else
}

Now flutter clean and rebuild the app.