ngOnDestroy method
Executed before the directive is removed from the DOM and destroyed.
See OnDestroy
for a full description.
Implementation
@override
void ngOnDestroy() {
actionButtonController.close();
changeController.close();
_selectionChangeController.close();
_focusController.close();
_blurController.close();
_clearButtonController.close();
_windowResizeSub.cancel();
}