Indicates the relative importance level that the system assigns to the process. These levels are represented by constants. The constants are numbered in such a way that more important values are always smaller than the less important values.
| Foreground | Mirrors android:public static final int IMPORTANCE_FOREGROUND. | 
| ForeGroundService | Mirrors android:public static final int IMPORTANCE_FOREGROUND_SERVICE. | 
| Visible | Mirrors android:public static final int IMPORTANCE_VISIBLE. | 
| Perceptible | Mirrors android:public static final int IMPORTANCE_PERCEPTIBLE. | 
| TopSleeping | Mirrors android:public static final int IMPORTANCE_TOP_SLEEPING. | 
| CantSaveState | Mirrors android:public static final int IMPORTANCE_CANT_SAVE_STATE. | 
| Service | Mirrors android:public static final int IMPORTANCE_SERVICE. | 
| Cached | Mirrors android:public static final int IMPORTANCE_CACHED. | 
| Gone | Mirrors android:public static final int IMPORTANCE_GONE. |