An interface to provide all the relevant info about a
abstract @NonNull Flow<@NonNull WindowMetrics> currentWindowMetrics
Flow for consuming the current
WindowMetrics according to the current system state.
The metrics describe the size of the area the window would occupy with
MATCH_PARENT width and height and any combination of flags that would allow the window to extend behind display cutouts.
The value of this is based on the current windowing state of the system. For example, for activities in multi-window mode, the metrics returned are based on the current bounds that the user has selected for the