```
public final class NCUpdateResult
extends java.lang.Object
```
While the Notification Center ultimately controls the layout of its children, widgets can request a change in height. Widgets with heights defined by constraints will be automatically adjusted (within limits). Widgets using explicit layout can request a new height (that may, or may not, be adjusted or honored at all) by changing the value of their ‘preferredContentSize’. Should either form of request result in a height change, the widget will be messaged with ‘viewWillTransitionToSize:withTransitionCoordinator:’ and, if the transition is animated, passed a transition coordinator. If the transition coordinator argument is not 'nil', and the widget has additional animations it wishes to run in concert with the height change, it can specify them and/or a completion block by messaging the coordinator with 'animateAlongsideTransition:completion:'.

Class NCUpdateResult