dispose method

void dispose()

Closes all controllers.

Implementation

void dispose() {
  unawaited(dataController.close());
  unawaited(tapController.close());
  unawaited(closeController.close());
  unawaited(expandController.close());
  unawaited(collapseController.close());
  unawaited(dragStartController.close());
  unawaited(dragEndController.close());
}