A set of flags that enumerate app states.
The app state is specified by the LayoutAwareDecorator.DefaultViewStateVisibility property.
The current app's view has been reduced to a partial screen view as the result of another app snapping.
Either the FullScreenLandscape or FullScreenPortrait app state.
The current app's view is in full-screen (has no snapped app adjacent to it), and has changed to landscape orientation.
The current app's view is in full-screen (has no snapped app adjacent to it), and has changed to portrait orientation.
The current app's view has been snapped.
Either the FullScreenLandscape, FullScreenPortrait or Filled app state.