Notification sound even when muted or on DnD

app/src/main/AndroidManifest.xml

@@ -16,6 +16,7 @@
         android:name="android.permission.ACCESS_NETWORK_STATE"
         tools:node="remove" />
     <uses-permission android:name="com.futsch1.medtimer.NOTIFICATION_PROCESSED" />
+    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY" />
 
     <application
         android:allowBackup="false"

app/src/main/java/com/futsch1/medtimer/ActivityCodes.java

@@ -11,6 +11,7 @@ public class ActivityCodes {
     public static final String EXTRA_REMAINING_REPEATS = "com.futsch1.medTimer.EXTRA_REMAINING_REPEATS";
     public static final String EXTRA_AMOUNT = "com.futsch1.medTimer.AMOUNT";
     public static final String EXTRA_MEDICINE_ID = "com.futsch1.medTimer.MEDICINE_ID";
+    public static final String EXTRA_RINGER_MODE = "com.futsch1.medTimer.RINGER_MODE";
 
     public static final String REMINDER_ACTION = "com.futsch1.medTimer.REMINDER_ACTION";
     public static final String DISMISSED_ACTION = "com.futsch1.medTimer.DISMISSED_ACTION";

app/src/main/java/com/futsch1/medtimer/PreferencesFragment.java

@@ -2,6 +2,7 @@
 
 import android.app.AlarmManager;
 import android.app.AlertDialog;
+import android.app.NotificationManager;
 import android.content.Intent;
 import android.os.Build;
 import android.os.Bundle;
@@ -75,6 +76,15 @@ private void setupNotificationSettings() {
         if (preference != null) {
             setupNotificationSettingsPreference(preference, ReminderNotificationChannelManager.Importance.DEFAULT);
         }
+        preference = getPreferenceScreen().findPreference(PreferencesNames.OVERRIDE_DND);
+        if (preference != null) {
+            preference.setOnPreferenceChangeListener((preference1, value) -> {
+                if (Boolean.TRUE.equals(value)) {
+                    showDndPermissions();
+                }
+                return true;
+            });
+        }
     }
 
     private void setupPreferencesLink(String preferenceKey, @IdRes int actionId) {
@@ -112,7 +122,7 @@ private void showExactReminderDialog() {
             builder.setMessage(R.string.enable_alarm_dialog).
                     setPositiveButton(R.string.ok, (dialog, id) -> {
                         Intent intent = new Intent(Settings.ACTION_REQUEST_SCHEDULE_EXACT_ALARM);
-                        requireContext().startActivity(intent);
+                        startActivity(intent);
                     }).
                     setNegativeButton(R.string.cancel, (dialog, id) -> {
                         PreferenceManager.getDefaultSharedPreferences(requireContext()).edit().putBoolean(PreferencesNames.EXACT_REMINDERS, false).apply();
@@ -136,6 +146,24 @@ private void setupNotificationSettingsPreference(Preference preference, Reminder
         );
     }
 
+    private void showDndPermissions() {
+        if (!requireContext().getSystemService(NotificationManager.class).isNotificationPolicyAccessGranted()) {
+            AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+            builder.setMessage(R.string.enable_dnd_dialog).
+                    setPositiveButton(R.string.ok, (dialog, id) -> {
+                        Intent intent = new Intent(Settings.ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS);
+                        startActivity(intent);
+                    }).
+                    setNegativeButton(R.string.cancel, (dialog, id) -> {
+                        PreferenceManager.getDefaultSharedPreferences(requireContext()).edit().putBoolean(PreferencesNames.OVERRIDE_DND, false).apply();
+                        setPreferenceScreen(null);
+                        addPreferencesFromResource(R.xml.root_preferences);
+                    });
+            AlertDialog d = builder.create();
+            d.show();
+        }
+    }
+
     @Override
     public void onResume() {
         super.onResume();
@@ -146,6 +174,11 @@ public void onResume() {
                 preference.setChecked(false);
             }
         }
+
+        preference = getPreferenceScreen().findPreference(PreferencesNames.OVERRIDE_DND);
+        if (preference != null && !requireContext().getSystemService(NotificationManager.class).isNotificationPolicyAccessGranted()) {
+            preference.setChecked(false);
+        }
     }
 
 }

app/src/main/java/com/futsch1/medtimer/PreferencesNames.java

@@ -8,6 +8,7 @@ public class PreferencesNames {
     public static final String REPEAT_REMINDERS = "repeat_reminders";
     public static final String NUMBER_OF_REPETITIONS = "repeat_reminders_repetitions";
     public static final String REPEAT_DELAY = "repeat_reminders_delay";
+    public static final String OVERRIDE_DND = "override_dnd";
 
     private PreferencesNames() {
         // Intended empty

app/src/main/java/com/futsch1/medtimer/ReminderNotificationChannel.kt

@@ -17,6 +17,10 @@ class ReminderNotificationChannel(
     private var notificationChannel: NotificationChannel =
         getOrCreateChannel()
 
+    init {
+        notificationChannel.setBypassDnd(true)
+    }
+
     private fun getOrCreateChannel(): NotificationChannel {
         return notificationManager.getNotificationChannel(importance.toString()) ?: createChannel()
     }

app/src/main/java/com/futsch1/medtimer/reminders/NotificationSoundManager.kt

@@ -0,0 +1,94 @@
+package com.futsch1.medtimer.reminders
+
+import android.app.NotificationManager
+import android.content.Context
+import android.media.AudioManager
+import android.os.Handler
+import android.os.Looper
+import androidx.preference.PreferenceManager
+import com.futsch1.medtimer.PreferencesNames
+
+class NotificationSoundManager(val context: Context) {
+    private val notificationManager: NotificationManager =
+        context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+    private val audioManager: AudioManager =
+        context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+
+    init {
+        if (notificationManager.isNotificationPolicyAccessGranted()) {
+            if (PreferenceManager.getDefaultSharedPreferences(context)
+                    .getBoolean(PreferencesNames.OVERRIDE_DND, false)
+            ) {
+                loadPendingRingerMode(audioManager, notificationManager)
+            } else {
+                notificationManager.notificationPolicy = NotificationManager.Policy(
+                    0,
+                    NotificationManager.Policy.PRIORITY_SENDERS_ANY,
+                    NotificationManager.Policy.PRIORITY_SENDERS_ANY
+                )
+
+            }
+        }
+    }
+
+    fun restore() {
+        restorePendingRingerMode(audioManager)
+    }
+
+    companion object {
+        private var pending = false
+        private var pendingWasMuted = false
+        private var scheduledRunnable: Runnable? = null
+        private val handler = Handler(Looper.getMainLooper())
+
+        @Synchronized
+        fun loadPendingRingerMode(
+            audioManager: AudioManager,
+            notificationManager: NotificationManager
+        ) {
+            if (!pending) {
+                pending = true
+                if (audioManager.isStreamMute(AudioManager.STREAM_RING) && notificationManager.currentInterruptionFilter == NotificationManager.INTERRUPTION_FILTER_ALL) {
+                    audioManager.adjustStreamVolume(
+                        AudioManager.STREAM_RING,
+                        AudioManager.ADJUST_UNMUTE,
+                        0
+                    )
+                    pendingWasMuted = true
+                }
+                notificationManager.notificationPolicy = NotificationManager.Policy(
+                    NotificationManager.Policy.PRIORITY_CATEGORY_REMINDERS,
+                    NotificationManager.Policy.PRIORITY_SENDERS_ANY,
+                    NotificationManager.Policy.PRIORITY_SENDERS_ANY,
+                    0
+                )
+            }
+        }
+
+        @Synchronized
+        fun restorePendingRingerMode(
+            audioManager: AudioManager
+        ) {
+            if (pending) {
+                if (scheduledRunnable == null) {
+                    scheduledRunnable = Runnable {
+                        if (pendingWasMuted) {
+                            audioManager.adjustStreamVolume(
+                                AudioManager.STREAM_RING,
+                                AudioManager.ADJUST_MUTE,
+                                0
+                            )
+                            audioManager.ringerMode = AudioManager.RINGER_MODE_VIBRATE
+                        }
+                        pending = false
+                        scheduledRunnable = null
+                    }
+                }
+                handler.postDelayed(scheduledRunnable!!, 5000)
+            } else {
+                handler.removeCallbacks(scheduledRunnable!!)
+                handler.postDelayed(scheduledRunnable!!, 5000)
+            }
+        }
+    }
+}

app/src/main/java/com/futsch1/medtimer/reminders/Notifications.java

@@ -1,6 +1,7 @@
 package com.futsch1.medtimer.reminders;
 
 import android.annotation.SuppressLint;
+import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.content.Context;
@@ -43,7 +44,6 @@ public int showNotification(String remindTime, FullMedicine medicine, Reminder r
         int notificationId = getNextNotificationId();
         ReminderNotificationChannelManager.Importance importance = (medicine.medicine.notificationImportance == ReminderNotificationChannelManager.Importance.HIGH.getValue()) ? ReminderNotificationChannelManager.Importance.HIGH : ReminderNotificationChannelManager.Importance.DEFAULT;
         Color color = medicine.medicine.useColor ? Color.valueOf(medicine.medicine.color) : null;
-        NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
 
         PendingIntent contentIntent = getStartAppIntent(notificationId);
 
@@ -53,6 +53,7 @@ public int showNotification(String remindTime, FullMedicine medicine, Reminder r
                 .setContentTitle(context.getString(R.string.notification_title))
                 .setContentText(getNotificationString(remindTime, reminder, medicine))
                 .setPriority(NotificationCompat.PRIORITY_DEFAULT)
+                .setCategory(Notification.CATEGORY_REMINDER)
                 .setContentIntent(contentIntent);
         if (medicine.medicine.iconId != 0) {
             MedicineIcons icons = new MedicineIcons(context);
@@ -64,7 +65,7 @@ public int showNotification(String remindTime, FullMedicine medicine, Reminder r
 
         buildActions(builder, notificationId, reminderEvent.reminderEventId, reminder);
 
-        notificationManager.notify(notificationId, builder.build());
+        notify(notificationId, builder.build());
         Log.d(LogTags.REMINDER, String.format("Created notification %d", notificationId));
 
         return notificationId;
@@ -130,6 +131,16 @@ private void buildActions(NotificationCompat.Builder builder, int notificationId
         }
     }
 
+    private void notify(int notificationId, Notification notification) {
+        NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
+
+        NotificationSoundManager soundManager = new NotificationSoundManager(context);
+
+        notificationManager.notify(notificationId, notification);
+
+        soundManager.restore();
+    }
+
     private PendingIntent getSnoozePendingIntent(Context context, int reminderId, int reminderEventId, int notificationId, int snoozeTime) {
         if (snoozeTime == -1) {
             Intent snooze = ReminderProcessor.getCustomSnoozeActionIntent(context, reminderId, reminderEventId, notificationId);
@@ -176,5 +187,4 @@ public void showOutOfStockNotification(Medicine medicine) {
         notificationManager.notify(notificationId, builder.build());
         Log.d(LogTags.REMINDER, String.format("Created notification %d", notificationId));
     }
-
 }

app/src/main/res/values/strings.xml

@@ -206,4 +206,7 @@
     <string name="are_you_sure_delete_tag">Are you sure to delete the tag?</string>
     <string name="unit">Unit</string>
     <string name="unlimited">Unlimited</string>
+    <string name="override_dnd">Always play notification sound</string>
+    <string name="override_dnd_summary">Plays notifications sound if only vibrate is on or do not disturb with not vibrate or muted</string>
+    <string name="enable_dnd_dialog">In order to allow always playing notification sounds, enable Do not disturb access for MedTimer in the following menu</string>
 </resources>

app/src/main/res/xml/root_preferences.xml

@@ -10,6 +10,13 @@
         android:layout_height="wrap_content"
         android:title="@string/notification_settings_high"
         app:key="notification_settings_high" />
+    <SwitchPreferenceCompat
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:defaultValue="false"
+        android:summary="@string/override_dnd_summary"
+        android:title="@string/override_dnd"
+        app:key="override_dnd" />
     <ListPreference
         android:defaultValue="0"
         android:entries="@array/dismiss_notification_action"