Difference between setNotificationPolicy and setInterruptionFilter in android

Question

The NotificationManager class in android lists two methods setInterruptionFilter (int interruptionFilter) and setNotificationPolicy (NotificationManager.Policy policy).

From the docs:

setInterruptionFilter

public final void setInterruptionFilter (int interruptionFilter)

Sets the current notification interruption filter.

The interruption filter defines which notifications are allowed to interrupt the user (e.g. via sound & vibration) and is applied globally.

setNotificationPolicy

public void setNotificationPolicy (NotificationManager.Policy policy)

Sets the current notification policy.

Both were added in API level 23. From my understanding, both seem to accomplish the same task of setting the Do Not Disturb policy for the android device. What exactly is the difference between the two methods?

Answer 1

with setNotificationPolicy you can set the Do Not Disturb "Allow Interruptions" policies like NotificationManager.Policy.PRIORITY_CATEGORY_ALARM ( allow alarm )

with setInterruptionFilter you set the actual Don Not Disturb on or off where :

NotificationManager.INTERRUPTION_FILTER_PRIORITY = set DND on with the setNotificationPolicy settings

NotificationManager.INTERRUPTION_FILTER_NONE = set DND on for every interuption

NotificationManager.INTERRUPTION_FILTER_ALL = set DND off

TIP. You can get the policy first before changing it with NotificationManager.getNotificationPolicy() to set it back after your done.