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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.wearable.synchronizednotifications;
     18 
     19 import static com.google.android.gms.wearable.PutDataRequest.WEAR_URI_SCHEME;
     20 
     21 import android.app.Notification;
     22 import android.app.NotificationManager;
     23 import android.app.PendingIntent;
     24 import android.content.Intent;
     25 import android.net.Uri;
     26 import android.os.Bundle;
     27 import android.util.Log;
     28 
     29 import com.example.android.wearable.synchronizednotifications.common.Constants;
     30 import com.google.android.gms.common.ConnectionResult;
     31 import com.google.android.gms.common.api.GoogleApiClient;
     32 import com.google.android.gms.common.api.ResultCallback;
     33 import com.google.android.gms.wearable.DataApi;
     34 import com.google.android.gms.wearable.DataEvent;
     35 import com.google.android.gms.wearable.DataEventBuffer;
     36 import com.google.android.gms.wearable.DataMap;
     37 import com.google.android.gms.wearable.DataMapItem;
     38 import com.google.android.gms.wearable.Wearable;
     39 import com.google.android.gms.wearable.WearableListenerService;
     40 
     41 /**
     42  * A {@link com.google.android.gms.wearable.WearableListenerService} that will be invoked when a
     43  * DataItem is added or deleted. The creation of a new DataItem will be interpreted as a request to
     44  * create a new notification and the removal of that DataItem is interpreted as a request to
     45  * dismiss that notification.
     46  */
     47 public class NotificationUpdateService extends WearableListenerService
     48         implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener,
     49         ResultCallback<DataApi.DeleteDataItemsResult> {
     50 
     51     private static final String TAG = "NotificationUpdate";
     52     private GoogleApiClient mGoogleApiClient;
     53 
     54     @Override
     55     public void onCreate() {
     56         super.onCreate();
     57         mGoogleApiClient = new GoogleApiClient.Builder(this)
     58                 .addApi(Wearable.API)
     59                 .addConnectionCallbacks(this)
     60                 .addOnConnectionFailedListener(this)
     61                 .build();
     62     }
     63 
     64     @Override
     65     public int onStartCommand(Intent intent, int flags, int startId) {
     66         if (null != intent) {
     67             String action = intent.getAction();
     68             if (Constants.ACTION_DISMISS.equals(action)) {
     69                 // We need to dismiss the wearable notification. We delete the data item that
     70                 // created the notification and that is how we inform the phone
     71                 int notificationId = intent.getIntExtra(Constants.KEY_NOTIFICATION_ID, -1);
     72                 if (notificationId == Constants.BOTH_ID) {
     73                     dismissPhoneNotification(notificationId);
     74                 }
     75             }
     76         }
     77         return super.onStartCommand(intent, flags, startId);
     78     }
     79 
     80     /**
     81      * Dismisses the phone notification, via a {@link android.app.PendingIntent} that is triggered
     82      * when the user dismisses the local notification. Deleting the corresponding data item notifies
     83      * the {@link com.google.android.gms.wearable.WearableListenerService} on the phone that the
     84      * matching notification on the phone side should be removed.
     85      */
     86     private void dismissPhoneNotification(int id) {
     87         mGoogleApiClient.connect();
     88     }
     89 
     90     @Override
     91     public void onDataChanged(DataEventBuffer dataEvents) {
     92         for (DataEvent dataEvent : dataEvents) {
     93             if (dataEvent.getType() == DataEvent.TYPE_CHANGED) {
     94                 DataMap dataMap = DataMapItem.fromDataItem(dataEvent.getDataItem()).getDataMap();
     95                 String content = dataMap.getString(Constants.KEY_CONTENT);
     96                 String title = dataMap.getString(Constants.KEY_TITLE);
     97                 if (Constants.WATCH_ONLY_PATH.equals(dataEvent.getDataItem().getUri().getPath())) {
     98                     buildWearableOnlyNotification(title, content, false);
     99                 } else if (Constants.BOTH_PATH.equals(dataEvent.getDataItem().getUri().getPath())) {
    100                     buildWearableOnlyNotification(title, content, true);
    101                 }
    102             } else if (dataEvent.getType() == DataEvent.TYPE_DELETED) {
    103                 if (Log.isLoggable(TAG, Log.DEBUG)) {
    104                     Log.d(TAG, "DataItem deleted: " + dataEvent.getDataItem().getUri().getPath());
    105                 }
    106                 if (Constants.BOTH_PATH.equals(dataEvent.getDataItem().getUri().getPath())) {
    107                     // Dismiss the corresponding notification
    108                     ((NotificationManager) getSystemService(NOTIFICATION_SERVICE))
    109                             .cancel(Constants.WATCH_ONLY_ID);
    110                 }
    111             }
    112         }
    113     }
    114 
    115     /**
    116      * Builds a simple notification on the wearable.
    117      */
    118     private void buildWearableOnlyNotification(String title, String content,
    119             boolean withDismissal) {
    120         Notification.Builder builder = new Notification.Builder(this)
    121                 .setSmallIcon(R.drawable.ic_launcher)
    122                 .setContentTitle(title)
    123                 .setContentText(content);
    124 
    125         if (withDismissal) {
    126             Intent dismissIntent = new Intent(Constants.ACTION_DISMISS);
    127             dismissIntent.putExtra(Constants.KEY_NOTIFICATION_ID, Constants.BOTH_ID);
    128             PendingIntent pendingIntent = PendingIntent
    129                     .getService(this, 0, dismissIntent, PendingIntent.FLAG_UPDATE_CURRENT);
    130             builder.setDeleteIntent(pendingIntent);
    131         }
    132 
    133         ((NotificationManager) getSystemService(NOTIFICATION_SERVICE))
    134                 .notify(Constants.WATCH_ONLY_ID, builder.build());
    135     }
    136 
    137     @Override
    138     public void onConnected(Bundle bundle) {
    139         final Uri dataItemUri =
    140                 new Uri.Builder().scheme(WEAR_URI_SCHEME).path(Constants.BOTH_PATH).build();
    141         if (Log.isLoggable(TAG, Log.DEBUG)) {
    142             Log.d(TAG, "Deleting Uri: " + dataItemUri.toString());
    143         }
    144         Wearable.DataApi.deleteDataItems(
    145                 mGoogleApiClient, dataItemUri).setResultCallback(this);
    146     }
    147 
    148     @Override
    149     public void onConnectionSuspended(int i) {
    150     }
    151 
    152     @Override
    153     public void onConnectionFailed(ConnectionResult connectionResult) {
    154     }
    155 
    156     @Override
    157     public void onResult(DataApi.DeleteDataItemsResult deleteDataItemsResult) {
    158         if (!deleteDataItemsResult.getStatus().isSuccess()) {
    159             Log.e(TAG, "dismissWearableNotification(): failed to delete DataItem");
    160         }
    161         mGoogleApiClient.disconnect();
    162     }
    163 }
    164