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DataLayerListenerService.java
/* * Copyright (C) 2014 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.example.android.wearable.datalayer; import android.content.Intent; import android.net.Uri; import android.util.Log; import com.google.android.gms.common.ConnectionResult; import com.google.android.gms.common.api.GoogleApiClient; import com.google.android.gms.wearable.DataEvent; import com.google.android.gms.wearable.DataEventBuffer; import com.google.android.gms.wearable.MessageEvent; import com.google.android.gms.wearable.Wearable; import com.google.android.gms.wearable.WearableListenerService; import java.util.concurrent.TimeUnit; /** * Listens to DataItems and Messages from the local node. */ public class DataLayerListenerService extends WearableListenerService { private static final String TAG = "DataLayerService"; private static final String START_ACTIVITY_PATH = "/start-activity"; private static final String DATA_ITEM_RECEIVED_PATH = "/data-item-received"; public static final String COUNT_PATH = "/count"; public static final String IMAGE_PATH = "/image"; public static final String IMAGE_KEY = "photo"; GoogleApiClient mGoogleApiClient; @Override public void onCreate() { super.onCreate(); mGoogleApiClient = new GoogleApiClient.Builder(this) .addApi(Wearable.API) .build(); mGoogleApiClient.connect(); } @Override public void onDataChanged(DataEventBuffer dataEvents) { LOGD(TAG, "onDataChanged: " + dataEvents); if (!mGoogleApiClient.isConnected() || !mGoogleApiClient.isConnecting()) { ConnectionResult connectionResult = mGoogleApiClient .blockingConnect(30, TimeUnit.SECONDS); if (!connectionResult.isSuccess()) { Log.e(TAG, "DataLayerListenerService failed to connect to GoogleApiClient, " + "error code: " + connectionResult.getErrorCode()); return; } } // Loop through the events and send a message back to the node that created the data item. for (DataEvent event : dataEvents) { Uri uri = event.getDataItem().getUri(); String path = uri.getPath(); if (COUNT_PATH.equals(path)) { // Get the node id of the node that created the data item from the host portion of // the uri. String nodeId = uri.getHost(); // Set the data of the message to be the bytes of the Uri. byte[] payload = uri.toString().getBytes(); // Send the rpc Wearable.MessageApi.sendMessage(mGoogleApiClient, nodeId, DATA_ITEM_RECEIVED_PATH, payload); } } } @Override public void onMessageReceived(MessageEvent messageEvent) { LOGD(TAG, "onMessageReceived: " + messageEvent); // Check to see if the message is to start an activity if (messageEvent.getPath().equals(START_ACTIVITY_PATH)) { Intent startIntent = new Intent(this, MainActivity.class); startIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(startIntent); } } public static void LOGD(final String tag, String message) { if (Log.isLoggable(tag, Log.DEBUG)) { Log.d(tag, message); } } }