GROUP_ALERT_ALL
Constant for setGroupAlertBehavior, meaning that all notifications in a group with sound or vibration ought to make sound or vibrate (respectively), so this notification will not be muted when it is in a group.
Constant for setGroupAlertBehavior, meaning that all notifications in a group with sound or vibration ought to make sound or vibrate (respectively), so this notification will not be muted when it is in a group.