Enable Silent Mode in android without triggering Do Not Disturb

问题

Having a little trouble bending my head around this one.

In my volume control app I am trying to set the system sound profile to SILENT ONLY without triggering do not disturb, my app has access to modify DND settings and notification access, no issues there.

System Settings has a silent profile that leaves DND off but I cannot find a way to do it using audio manager?

I have attempted to set the mode to silent and then change DND settings using NotificationManager, disabling DND after setting the system to silent sets vibrate, disabling dnd and then setting silent re-activates DND.

Code for reference:

int current = audioManager.getRingerMode();
if (current == AudioManager.RINGER_MODE_VIBRATE) {
         newIcon = Icon.createWithResource(this, R.drawable.silent);
         //ENABLES DND WHEN IT SHOULD ENABLE SILENT
         audioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT);
}

Any assistance would be appreciated as this is driving me a little insane.

回答1:

This indeed appears to be another all too familiar bug in Android, in that setting RINGER_MODE_SILENT doesn't do what the documentation says it should do. I got the desired behaviour by:

First setting RINGER_MODE_NORMAL
Then setting RINGER_MODE_SILENT
Then setting INTERRUPTION_FILTER_ALL to override the erroneously set Do Not Disturb state.

i.e.

audioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
audioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT);
notificationManager.setInterruptionFilter(NotificationManager.INTERRUPTION_FILTER_ALL);

Hope this helps.

回答2:

... but DND is not silent. DND can be configured to to allow priority callers to ring, but silent allows no callers to ring. So users and apps should have the choice.

This code appears to successfully mute the ringer for me (on emulator running API 28) and does not set do-not-disturb mode:-

audio.adjustStreamVolume(AudioManager.STREAM_RING,
                        AudioManager.ADJUST_MUTE, 0);

To reinstate the ringer, do

enter audio.adjustStreamVolume(AudioManager.STREAM_RING,
                        AudioManager.ADJUST_UNMUTE, 0);

回答3:

There are two views of the world when it comes to DnD: Before Android N and after Android N. Before Android N you could use AudioMamnager.setRingerMode(RINGER_MODE_SILENT) if you're only interested in the ringer. But since Android N, the public api AudioMamnager.setRingerMode(silent) == DND. Therefore, for complete silence, you'd have to toggle DnD.

Also if you want to proceed with toggling DnD, you would also need NotificationPolicyAccess.

UPDATE TO ADDRESS COMMENTS

Android users have a lot of latitude. Latitudes that apps do not have.

For your situation there is good news and there is bad news.

The bad news:

Unfortunately there's no workaround that I can recommend. It is a longstanding, CTS tested behavior that silence == DND. (M -> any app could set MODE_SILENT and DND would turn on) (N+ -> using MODE_SILENT first checks in the app has permission to change DND).

THE GOOD NEWS

First, thanks for sharing your use case. As it turns out, Google's camera app has a recording feature as well. And it uses DND during recording. So DND should be a viable option for your situation. You should be able to check this (I am using a Pixel device).

Start recording a video.
Pull down the quick settings to see the DND tile while the recording is on going.

来源：https://stackoverflow.com/questions/58044974/enable-silent-mode-in-android-without-triggering-do-not-disturb

标签

java

android

android-audiomanager