tree: b113d1e00480d941f4b2e46be7e1edf7eda87293 [path history] [tgz]
  1. .google/
  2. Application/
  8. Shared/
  9. Wearable/
  10. build.gradle
  11. gradle/
  12. gradlew
  13. gradlew.bat
  14. screenshots/
  15. settings.gradle

Android SynchronizedNotifications Sample

A basic sample showing how to use simple or synchronized notifications. This allows users to dismiss events from either their phone or wearable device simultaneously.


The DataAPI exposes an API for components to read or write data items and assets between the handhelds and wearables. A DataItem is synchronized across all devices in an Android Wear network. It is possible to set data items while not connected to any nodes. Those data items will be synchronized when the nodes eventually come online.

This example presents three buttons that would trigger three different combinations of notifications on the handset and the watch:

  1. The first button builds a simple local-only notification on the handset.
  2. The second one creates a wearable-only notification by putting a data item in the shared data store and having a listen for that on the wearable.
  3. The third one creates a local notification and a wearable notification by combining the above two. It, however, demonstrates how one can set things up so that the dismissal of one notification results in the dismissal of the other one.

In the #2 and #3 items, the following code is used to synchronize the data between the handheld and the wearable devices using DataAPI.

PutDataMapRequest putDataMapRequest = PutDataMapRequest.create(path);
putDataMapRequest.getDataMap().putString(Constants.KEY_CONTENT, content);
putDataMapRequest.getDataMap().putString(Constants.KEY_TITLE, title);
PutDataRequest request = putDataMapRequest.asPutDataRequest();
Wearable.DataApi.putDataItem(mGoogleApiClient, request)
        .setResultCallback(new ResultCallback<DataApi.DataItemResult>() {
            public void onResult(DataApi.DataItemResult dataItemResult) {
                if (!dataItemResult.getStatus().isSuccess()) {
                    Log.e(TAG, "buildWatchOnlyNotification(): Failed to set the data, "
                            + "status: " + dataItemResult.getStatus().getStatusCode());


  • Android SDK v22
  • Android Build Tools v22.0.1
  • Android Support Repository


Getting Started

This sample uses the Gradle build system. To build this project, use the “gradlew build” command or use “Import Project” in Android Studio.


If you've found an error in this sample, please file an issue:

Patches are encouraged, and may be submitted by forking this project and submitting a pull request through GitHub. Please see for more details.


Copyright 2014 The Android Open Source Project, Inc.

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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

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.