close method

@override Future<void> close()

Implementation

@override
Future<void> close() async {
  Phidget.unregisterInstance(identityHashCode(this));

  if (!attachStreamController.isClosed) await attachStreamController.close();
  if (!detachStreamController.isClosed) await detachStreamController.close();
  if (!errorStreamController.isClosed) await errorStreamController.close();

  if (_handle != null) {
    final pDelete = calloc<bindings.StepperHandle>();
    pDelete.value = _handle!;
    try {
      bindings.phidgetClose(_handle!);
    } catch (_) {}
    try {
      bindings.stepperDelete(pDelete);
    } catch (_) {
    } finally {
      calloc.free(pDelete);
    }
    _handle = null;
  }

  if (isAttached) {
    internalProcessDetach();
  }
  isAttached = false;
}