<itemvalue="Called when the application's dimensions change. For example, when a phone is rotated. This method exposes notifications from [dart:ui.PlatformDispatcher.onMetricsChanged]. {@tool snippet} This [StatefulWidget] implements the parts of the [State] and [WidgetsBindingObserver] protocols necessary to react when the device is rotated (or otherwise changes dimensions)."/>
<itemvalue="The widget to show under the pointer when a drag is under way. See [child] and [childWhenDragging] for information about what is shown at the location of the [Draggable] itself when a drag is under way."/>
<itemvalue="This entry will include the widget built by this builder in the overlay at the entry's position. To cause this builder to be called again, call [markNeedsBuild] on this overlay entry."/>
<itemvalue="Discards any resources used by this [OverlayEntry]. This method must be called after [remove] if the [OverlayEntry] is inserted into an [Overlay]. After this is called, the object is not in a usable state and should be discarded (calls to [addListener] will throw after the object is disposed). However, the listeners registered may not be immediately released until the widget built using this [OverlayEntry] is unmounted from the widget tree. This method should only be called by the object's owner."/>
