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Not allowed to change Do Not Disturb state, using AudioManager setRingerMode(int i) in Worker

Discussion in 'Android Development' started by DMRG TUE, Jul 7, 2021.


    DMRG TUE Lurker
    Thread Starter

    I am using AudioManager and setRingerMode to adjust the ringer programmatically. This is done with a Worker.

    public class SettingWorker extends Worker {

    * Tag of the class
    static final private String TAG = "SettingWorker";

    Context mContext;

    * Constructor of the worker
    * @param context context of the application
    * @param workerParams ..
    public SettingWorker(@NonNull Context context, @NonNull WorkerParameters workerParams) {
    super(context, workerParams);
    mContext = context;

    public Result doWork() {
    Logger.logD(TAG, "doWork(): finished");
    return Result.success();

    * method to set the sound setting as requested and found
    * @param setting SND, SLT, VBR
    private void setSetting(String setting) {

    Logger.logD(TAG, "setSetting(): setting is " + setting);

    AudioManager am = (AudioManager) mContext.getSystemService(mContext.AUDIO_SERVICE);
    switch(setting) {
    case "SLT":
    am.adjustVolume(AudioManager.ADJUST_MUTE, AudioManager.FLAG_SHOW_UI);
    case "VBR":
    am.adjustVolume(AudioManager.ADJUST_MUTE, AudioManager.FLAG_SHOW_UI);
    //TODO: perhaps let user decide the volume
    case "SND":
    am.adjustVolume(AudioManager.ADJUST_UNMUTE, AudioManager.FLAG_SHOW_UI);

    I have added the needed permission to my manifest:

    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY"/>

    However, I still get the exception:

    Caused by: java.lang.SecurityException: Not allowed to change Do Not Disturb state

    I am not sure where the problem lies. Could somebody help me please?


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  2. Aakil khan

    Aakil khan Lurker

    I am making an app that needs to set the ringer mode to silent, when i run the AudioComponent.Ringer Mode Silent block an error occurs:
    “Not allowed to change Do Not Disturb State”, both in companion and in apk.

    I granted all the required permissions but still doesn’t work.
    I’ve also tried to grant Access to Do not disturb state from the phone’s settings but i haven’t found my app in the list.

    Tested with two phones: Samsung J7 pro and Samsung S8+, both with android 9
    Aakil Working at The Next Hint

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