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/*
* Copyright 2015 Google Inc. All rights reserved.
*
* 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.xyztouristattractions.service;
import android.app.IntentService;
import android.app.NotificationManager;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import com.example.android.xyztouristattractions.R;
import com.example.android.xyztouristattractions.common.Constants;
import com.example.android.xyztouristattractions.common.Utils;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.wearable.CapabilityApi;
import com.google.android.gms.wearable.Node;
import com.google.android.gms.wearable.Wearable;
import java.util.Iterator;
import java.util.Set;
import java.util.concurrent.TimeUnit;
/**
* A utility IntentService, used for a variety of asynchronous background
* operations that do not necessarily need to be tied to a UI.
*/
public class UtilityService extends IntentService {
private static final String TAG = UtilityService.class.getSimpleName();
private static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
private static final String ACTION_CLEAR_REMOTE_NOTIFICATIONS = "clear_remote_notifications";
private static final String ACTION_START_DEVICE_ACTIVITY = "start_device_activity";
private static final String EXTRA_START_PATH = "start_path";
private static final String EXTRA_START_ACTIVITY_INFO = "start_activity_info";
private static final long GET_CAPABILITY_TIMEOUT_S = 10;
public static void clearNotification(Context context) {
Intent intent = new Intent(context, UtilityService.class);
intent.setAction(UtilityService.ACTION_CLEAR_NOTIFICATION);
context.startService(intent);
}
public static void clearRemoteNotifications(Context context) {
context.startService(getClearRemoteNotificationsIntent(context));
}
public static Intent getClearRemoteNotificationsIntent(Context context) {
Intent intent = new Intent(context, UtilityService.class);
intent.setAction(UtilityService.ACTION_CLEAR_REMOTE_NOTIFICATIONS);
return intent;
}
/**
* Trigger a message that asks the master device to start an activity.
*
* @param context the context
* @param path the path that will be sent via the wearable message API
* @param name the tourist attraction name
* @param city the tourist attraction city
*/
public static void startDeviceActivity(Context context, String path, String name, String city) {
Intent intent = new Intent(context, UtilityService.class);
intent.setAction(UtilityService.ACTION_START_DEVICE_ACTIVITY);
String extraInfo;
if (Constants.START_ATTRACTION_PATH.equals(path)) {
extraInfo = name;
} else {
extraInfo = name + ", " + city;
}
intent.putExtra(EXTRA_START_ACTIVITY_INFO, extraInfo);
intent.putExtra(EXTRA_START_PATH, path);
context.startService(intent);
}
public UtilityService() {
super(TAG);
}
@Override
protected void onHandleIntent(Intent intent) {
String action = intent != null ? intent.getAction() : null;
if (ACTION_CLEAR_NOTIFICATION.equals(action)) {
clearNotificationInternal();
} else if (ACTION_CLEAR_REMOTE_NOTIFICATIONS.equals(action)) {
clearRemoteNotificationsInternal();
} else if (ACTION_START_DEVICE_ACTIVITY.equals(action)) {
startDeviceActivityInternal(intent.getStringExtra(EXTRA_START_PATH),
intent.getStringExtra(EXTRA_START_ACTIVITY_INFO));
}
}
/**
* Clear the local notifications
*/
private void clearNotificationInternal() {
NotificationManager notificationManager =
(NotificationManager) getSystemService(NOTIFICATION_SERVICE);
notificationManager.cancel(Constants.WEAR_NOTIFICATION_ID);
}
/**
* Trigger a message to ask other devices to clear their notifications
*/
private void clearRemoteNotificationsInternal() {
GoogleApiClient googleApiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.build();
ConnectionResult connectionResult = googleApiClient.blockingConnect(
Constants.GOOGLE_API_CLIENT_TIMEOUT_S, TimeUnit.SECONDS);
if (connectionResult.isSuccess() && googleApiClient.isConnected()) {
Iterator<String> itr = Utils.getNodes(googleApiClient).iterator();
while (itr.hasNext()) {
// Loop through all connected nodes
Wearable.MessageApi.sendMessage(
googleApiClient, itr.next(), Constants.CLEAR_NOTIFICATIONS_PATH, null);
}
}
googleApiClient.disconnect();
}
/**
* Sends the actual message to ask other devices that are capable of showing "details" to start
* the appropriate activity
*
* @param path the path to pass to the wearable message API
* @param extraInfo extra info that varies based on the path being sent
*/
private void startDeviceActivityInternal(String path, String extraInfo) {
GoogleApiClient googleApiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.build();
ConnectionResult connectionResult = googleApiClient.blockingConnect(
Constants.GOOGLE_API_CLIENT_TIMEOUT_S, TimeUnit.SECONDS);
if (connectionResult.isSuccess() && googleApiClient.isConnected()) {
CapabilityApi.GetCapabilityResult result = Wearable.CapabilityApi.getCapability(
googleApiClient,
getApplicationContext().getString(R.string.show_detail_capability_name),
CapabilityApi.FILTER_REACHABLE)
.await(GET_CAPABILITY_TIMEOUT_S, TimeUnit.SECONDS);
if (result.getStatus().isSuccess()) {
Set<Node> nodes = result.getCapability().getNodes();
for (Node node : nodes) {
Wearable.MessageApi.sendMessage(
googleApiClient, node.getId(), path, extraInfo.getBytes());
}
} else {
Log.e(TAG, "startDeviceActivityInternal() Failed to get capabilities, status: "
+ result.getStatus().getStatusMessage());
}
googleApiClient.disconnect();
}
}
}
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