Only recently updated notifications can alert

Even if something in e.g. the contacts database
has changed

Test: atest
Change-Id: I10eaa3d34574296d554eb8bae5900c79af773dcd
Fixes: 117868600

services/core/java/com/android/server/notification/NotificationManagerService.java

@@ -5698,19 +5698,17 @@ public class NotificationManagerService extends SystemService {
             }
             int indexBefore = findNotificationRecordIndexLocked(record);
             boolean interceptBefore = record.isIntercepted();
-            float contactAffinityBefore = record.getContactAffinity();
             int visibilityBefore = record.getPackageVisibilityOverride();
             recon.applyChangesLocked(record);
             applyZenModeLocked(record);
             mRankingHelper.sort(mNotificationList);
             int indexAfter = findNotificationRecordIndexLocked(record);
             boolean interceptAfter = record.isIntercepted();
-            float contactAffinityAfter = record.getContactAffinity();
             int visibilityAfter = record.getPackageVisibilityOverride();
             changed = indexBefore != indexAfter || interceptBefore != interceptAfter
                     || visibilityBefore != visibilityAfter;
             if (interceptBefore && !interceptAfter
-                    && Float.compare(contactAffinityBefore, contactAffinityAfter) != 0) {
+                    && record.isNewEnoughForAlerting(System.currentTimeMillis())) {
                 buzzBeepBlinkLocked(record);
             }
         }

services/core/java/com/android/server/notification/NotificationRecord.java

@@ -92,6 +92,8 @@ public final class NotificationRecord {
     static final String TAG = "NotificationRecord";
     static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
     private static final int MAX_LOGTAG_LENGTH = 35;
+    // the period after which a notification is updated where it can make sound
+    private static final int MAX_SOUND_DELAY_MS = 2000;
     final StatusBarNotification sbn;
     IActivityManager mAm;
     UriGrantsManagerInternal mUgmInternal;
@@ -125,7 +127,8 @@ public final class NotificationRecord {
     private long mVisibleSinceMs;
 
     // The most recent update time, or the creation time if no updates.
-    private long mUpdateTimeMs;
+    @VisibleForTesting
+    final long mUpdateTimeMs;
 
     // The most recent interruption time, or the creation time if no updates. Differs from the
     // above value because updates are filtered based on whether they actually interrupted the
@@ -826,6 +829,10 @@ public final class NotificationRecord {
         return mIntercept;
     }
 
+    public boolean isNewEnoughForAlerting(long now) {
+        return getFreshnessMs(now) <= MAX_SOUND_DELAY_MS;
+    }
+
     public void setHidden(boolean hidden) {
         mHidden = hidden;
     }

services/tests/uiservicestests/src/com/android/server/notification/NotificationRecordTest.java

@@ -825,4 +825,24 @@ public class NotificationRecordTest extends UiServiceTestCase {
 
         assertNotEquals(-1, record.getLastAudiblyAlertedMs());
     }
+
+    @Test
+    public void testIsNewEnoughForAlerting_new() {
+        StatusBarNotification sbn = getNotification(PKG_O, true /* noisy */,
+                true /* defaultSound */, false /* buzzy */, false /* defaultBuzz */,
+                false /* lights */, false /* defaultLights */, groupId /* group */);
+        NotificationRecord record = new NotificationRecord(mMockContext, sbn, channel);
+
+        assertTrue(record.isNewEnoughForAlerting(record.mUpdateTimeMs));
+    }
+
+    @Test
+    public void testIsNewEnoughForAlerting_old() {
+        StatusBarNotification sbn = getNotification(PKG_O, true /* noisy */,
+                true /* defaultSound */, false /* buzzy */, false /* defaultBuzz */,
+                false /* lights */, false /* defaultLights */, groupId /* group */);
+        NotificationRecord record = new NotificationRecord(mMockContext, sbn, channel);
+
+        assertFalse(record.isNewEnoughForAlerting(record.mUpdateTimeMs + (1000 * 60 * 60)));
+    }
 }