Android：开机自启动并接收推送消息

接收推送消息部分我们通过ZeroMQ实现，可以参考http://www.cnblogs.com/ilovewindy/p/3984283.html。

首先是开机自启动的功能实现，代码如下：
1. AndroidManifest.xml中添加如下代码：

 1 <!-- 抓取系统启动事件 -->
 2 <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
 3 
 4 <application>
 5 …..
 6     <service
 7             android:name="com.demo.notification.NotificationService"
 8             android:icon="@drawable/icon"
 9             android:label="@string/app_name" >
10     </service>
11 
12     <receiver android:name="com.demo.notification.MyScheduleReceiver" >
13         <intent-filter>
14             <action android:name="android.intent.action.BOOT_COMPLETED" />
15         </intent-filter>
16     </receiver>
17 </application>

2. 接着是实现MyScheduleReceiver代码，这是当Android启动后会自动启动的程序。

1 public class MyScheduleReceiver extends BroadcastReceiver {
2 
3     @Override
4     public void onReceive(Context context, Intent intent) {
5 
6         Intent service = new Intent(context, NotificationService.class);
7         context.startService(service);
8     }
9 }

3. 实现NotificationService代码，用来接收推送消息

 1 public class NotificationService  extends Service {
 2     private final IBinder mBinder = new MyBinder();
 3 
 4     @Override
 5     public int onStartCommand(Intent intent, int flags, int startId) {
 6            // 将接收推送消息任务放入后台执行
 7         new ZeroMQMessageTask().execute();
 8 
 9         return Service.START_STICKY;
10     }
11 
12     @Override
13     public IBinder onBind(Intent arg0) {
14         return mBinder;
15     }
16 
17     public class MyBinder extends Binder {
18         public NotificationService getService() {
19             return NotificationService.this;
20         }
21     }
22 
23     private class ZeroMQMessageTask extends AsyncTask<String, Void, String> {
24 
25         public ZeroMQMessageTask() {
26         }
27 
28         @Override
29         protected String doInBackground(String... params) {
30 
31             ZMQ.Context context = ZMQ.context(1);
32             ZMQ.Socket subscriber = context.socket(ZMQ.SUB);
33             subscriber.subscribe(ZMQ.SUBSCRIPTION_ALL);
34             subscriber.connect("tcp://x.x.x.x:xxxx");
35             while (true) {                  // 通过不终止的循环来保证接收消息
36                 message = subscriber.recvStr();
37                 if (!message.equals("0")) {  // 0是由我自己定义的空消息标识，可以替换成自定义的其它标识
38 
39                     // 显示推送消息
40                     String ns = Context.NOTIFICATION_SERVICE;
41                     NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
42 
43                     int icon = R.drawable.icon;
44                     CharSequence tickerText = "Demo - " + message;
45                     long when = System.currentTimeMillis();
46 
47                     Notification notification = new Notification(icon,
48                             tickerText, when);
49                     notification.flags |= Notification.FLAG_AUTO_CANCEL;
50                     Context uiContext = getApplicationContext();
51                     CharSequence contentTitle = "Demo";
52                     CharSequence contentText = message;
53                     Intent notificationIntent = new Intent(uiContext,
54                             NotificationService.class);
55                     PendingIntent contentIntent = PendingIntent
56                             .getActivity(uiContext, 0, notificationIntent, 0);
57 
58                     notification.setLatestEventInfo(uiContext, contentTitle,
59                             contentText, contentIntent);
60 
61                     mNotificationManager.notify(1, notification);
62                 }
63             }
64         }
65 
66         @Override
67         protected void onPostExecute(String result) {
68         }
69     }
70 }

好啦，重新启动手机尝试发条消息吧！ :D

服务器端的代码可以参考此文：http://www.cnblogs.com/ilovewindy/p/3998862.html