isCompleted property

  1. @override
bool isCompleted

Whether the complete or completeError have been called.

Once this completer has been completed with either a result or error, neither method may be called again.

If complete was called with a Future argument, this completer may be completed before it's operation is completed. In that case the operation may still be canceled before the result is available.

Implementation

@override
bool get isCompleted => _isCompleted;