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SynchronizedNotifications / Wearable / src / com.example.android.wearable.synchronizednotifications /

NotificationUpdateService.java

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/*
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 * Copyright (C) 2014 The Android Open Source Project
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *      http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package com.example.android.wearable.synchronizednotifications;
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import static com.google.android.gms.wearable.PutDataRequest.WEAR_URI_SCHEME;
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import android.app.Notification;
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import android.app.NotificationManager;
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import android.app.PendingIntent;
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import android.content.Intent;
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import android.net.Uri;
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import android.os.Bundle;
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import android.util.Log;
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import com.example.android.wearable.synchronizednotifications.common.Constants;
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import com.google.android.gms.common.ConnectionResult;
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import com.google.android.gms.common.api.GoogleApiClient;
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import com.google.android.gms.common.api.ResultCallback;
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import com.google.android.gms.wearable.DataApi;
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import com.google.android.gms.wearable.DataEvent;
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import com.google.android.gms.wearable.DataEventBuffer;
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import com.google.android.gms.wearable.DataMap;
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import com.google.android.gms.wearable.DataMapItem;
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import com.google.android.gms.wearable.Wearable;
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import com.google.android.gms.wearable.WearableListenerService;
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/**
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 * A {@link com.google.android.gms.wearable.WearableListenerService} that will be invoked when a
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 * DataItem is added or deleted. The creation of a new DataItem will be interpreted as a request to
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 * create a new notification and the removal of that DataItem is interpreted as a request to
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 * dismiss that notification.
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 */
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public class NotificationUpdateService extends WearableListenerService
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        implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener,
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        ResultCallback<DataApi.DeleteDataItemsResult> {
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    private static final String TAG = "NotificationUpdate";
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    private GoogleApiClient mGoogleApiClient;
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    @Override
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    public void onCreate() {
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        super.onCreate();
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        mGoogleApiClient = new GoogleApiClient.Builder(this)
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                .addApi(Wearable.API)
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                .addConnectionCallbacks(this)
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                .addOnConnectionFailedListener(this)
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                .build();
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    }
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    @Override
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    public int onStartCommand(Intent intent, int flags, int startId) {
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        if (null != intent) {
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            String action = intent.getAction();
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            if (Constants.ACTION_DISMISS.equals(action)) {
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                // We need to dismiss the wearable notification. We delete the data item that
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                // created the notification and that is how we inform the phone
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                int notificationId = intent.getIntExtra(Constants.KEY_NOTIFICATION_ID, -1);
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                if (notificationId == Constants.BOTH_ID) {
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                    dismissPhoneNotification(notificationId);
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                }
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            }
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        }
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        return super.onStartCommand(intent, flags, startId);
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    }
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    /**
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     * Dismisses the phone notification, via a {@link android.app.PendingIntent} that is triggered
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     * when the user dismisses the local notification. Deleting the corresponding data item notifies
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     * the {@link com.google.android.gms.wearable.WearableListenerService} on the phone that the
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     * matching notification on the phone side should be removed.
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     */
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    private void dismissPhoneNotification(int id) {
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        mGoogleApiClient.connect();
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    }
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    @Override
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    public void onDataChanged(DataEventBuffer dataEvents) {
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        for (DataEvent dataEvent : dataEvents) {
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            if (dataEvent.getType() == DataEvent.TYPE_CHANGED) {
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                DataMap dataMap = DataMapItem.fromDataItem(dataEvent.getDataItem()).getDataMap();
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                String content = dataMap.getString(Constants.KEY_CONTENT);
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                String title = dataMap.getString(Constants.KEY_TITLE);
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                if (Constants.WATCH_ONLY_PATH.equals(dataEvent.getDataItem().getUri().getPath())) {
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                    buildWearableOnlyNotification(title, content, false);
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                } else if (Constants.BOTH_PATH.equals(dataEvent.getDataItem().getUri().getPath())) {
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                    buildWearableOnlyNotification(title, content, true);
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                }
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            } else if (dataEvent.getType() == DataEvent.TYPE_DELETED) {
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                if (Log.isLoggable(TAG, Log.DEBUG)) {
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                    Log.d(TAG, "DataItem deleted: " + dataEvent.getDataItem().getUri().getPath());
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                }
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                if (Constants.BOTH_PATH.equals(dataEvent.getDataItem().getUri().getPath())) {
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                    // Dismiss the corresponding notification
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                    ((NotificationManager) getSystemService(NOTIFICATION_SERVICE))
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                            .cancel(Constants.WATCH_ONLY_ID);
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                }
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            }
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        }
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    }
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    /**
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     * Builds a simple notification on the wearable.
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     */
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    private void buildWearableOnlyNotification(String title, String content,
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            boolean withDismissal) {
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        Notification.Builder builder = new Notification.Builder(this)
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                .setSmallIcon(R.drawable.ic_launcher)
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                .setContentTitle(title)
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                .setContentText(content);
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        if (withDismissal) {
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            Intent dismissIntent = new Intent(Constants.ACTION_DISMISS);
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            dismissIntent.putExtra(Constants.KEY_NOTIFICATION_ID, Constants.BOTH_ID);
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            PendingIntent pendingIntent = PendingIntent
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                    .getService(this, 0, dismissIntent, PendingIntent.FLAG_UPDATE_CURRENT);
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            builder.setDeleteIntent(pendingIntent);
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        }
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        ((NotificationManager) getSystemService(NOTIFICATION_SERVICE))
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                .notify(Constants.WATCH_ONLY_ID, builder.build());
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    }
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    @Override
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    public void onConnected(Bundle bundle) {
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        final Uri dataItemUri =
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                new Uri.Builder().scheme(WEAR_URI_SCHEME).path(Constants.BOTH_PATH).build();
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        if (Log.isLoggable(TAG, Log.DEBUG)) {
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            Log.d(TAG, "Deleting Uri: " + dataItemUri.toString());
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        }
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        Wearable.DataApi.deleteDataItems(
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                mGoogleApiClient, dataItemUri).setResultCallback(this);
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    }
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    @Override
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    public void onConnectionSuspended(int i) {
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    }
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    @Override
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    public void onConnectionFailed(ConnectionResult connectionResult) {
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    }
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    @Override
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    public void onResult(DataApi.DeleteDataItemsResult deleteDataItemsResult) {
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        if (!deleteDataItemsResult.getStatus().isSuccess()) {
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            Log.e(TAG, "dismissWearableNotification(): failed to delete DataItem");
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        }
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        mGoogleApiClient.disconnect();
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    }
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}
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