1 files changed, 66 insertions, 0 deletions
diff --git a/java/com/android/dialer/notification/GroupedNotificationUtil.java b/java/com/android/dialer/notification/GroupedNotificationUtil.java
new file mode 100644
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+++ b/java/com/android/dialer/notification/GroupedNotificationUtil.java
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+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.dialer.notification;
+
+import android.app.NotificationManager;
+import android.service.notification.StatusBarNotification;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import java.util.Objects;
+
+/** Utilities for dealing with grouped notifications */
+public final class GroupedNotificationUtil {
+
+  /**
+   * Remove notification(s) that were added as part of a group. Will ensure that if this is the last
+   * notification in the group the summary will be removed.
+   *
+   * @param tag String tag as included in {@link NotificationManager#notify(String, int,
+   *     android.app.Notification)}. If null will remove all notifications under id
+   * @param id notification id as included with {@link NotificationManager#notify(String, int,
+   *     android.app.Notification)}.
+   * @param summaryTag String tag of the summary notification
+   */
+  public static void removeNotification(
+      @NonNull NotificationManager notificationManager,
+      @Nullable String tag,
+      int id,
+      @NonNull String summaryTag) {
+    if (tag == null) {
+      // Clear all missed call notifications
+      for (StatusBarNotification notification : notificationManager.getActiveNotifications()) {
+        if (notification.getId() == id) {
+          notificationManager.cancel(notification.getTag(), id);
+        }
+      }
+    } else {
+      notificationManager.cancel(tag, id);
+
+      // See if other non-summary missed call notifications exist, and if not then clear the summary
+      boolean clearSummary = true;
+      for (StatusBarNotification notification : notificationManager.getActiveNotifications()) {
+        if (notification.getId() == id && !Objects.equals(summaryTag, notification.getTag())) {
+          clearSummary = false;
+          break;
+        }
+      }
+      if (clearSummary) {
+        notificationManager.cancel(summaryTag, id);
+      }
+    }
+  }
+}