listen abstract method

StreamSubscription<T> listen(
  1. void onData(
    1. T event
    ), {
  2. Function? onError,
  3. void onDone()?,
  4. bool? cancelOnError,
})

Calls callback with current value, when the value changes.

Implementation

StreamSubscription<T> listen(
  void Function(T event) onData, {
  Function? onError,
  void Function()? onDone,
  bool? cancelOnError,
});