How can I access the audio 'Priority Mode' on a device running Android 5.0?

Question

Android 5.0 includes a new way to control which apps are allowed to make noise on your device: when you press the volume button, the popup now lets you to choose None (completely silent), Priority (only priority notifications make sound), or All (everything is allowed to make noise.)

I would like my app to be able to query the device to find out which of these three modes is currently active, and also I would like to be able to change these modes (without requiring the device to be rooted). Does anyone know how to do this?

So far, all I can find is a brief reference on this changelog:

Setting the device to RINGER_MODE_SILENT causes the device to enter the new priority mode. The device leaves priority mode if you set it to RINGER_MODE_NORMAL or RINGER_MODE_VIBRATE.

This works as described, which allows me a very limited ability to change "priority mode" by modifying the ringer mode in AudioManager. That's not enough, though, as I need to be able to know exactly which of the three priority mode settings is currently active, and it would also be nice if I could change them more precisely than AudioManager allows.

Answer 1

I've found a solution, but this requires root to change, because this setting is in Settings.Global.

Name of setting is "zen_mode".

Values are:

ZENMODE_ALL = 0;
ZENMODE_PRIORITY = 1;
ZENMODE_NONE = 2;

EDIT: I've found another solution. Check NotificationListenerService.requestInterruptionFilter(int interruptionFilter). https://developer.android.com/reference/android/service/notification/NotificationListenerService.html Implementation example: https://github.com/kpbird/NotificationListenerService-Example