使用清單註冊廣播接收器

Question

我一直在嘗試推出推送通知的擴展，其中我沒有應用程序的包名稱（因爲擴展將用於任何數量的應用程序而無需修改） 。清單中包含以下信息 -

<receiver 
      android:name=".GcmBroadcastReceiver" 
      android:permission="com.google.android.c2dm.permission.SEND" > 
      <intent-filter> 
       <action android:name="com.google.android.c2dm.intent.RECEIVE" /> 
       <category android:name="App.package" /> 
      </intent-filter> 
      <!-- Receive the registration id --> 
      <intent-filter> 
       <action android:name="com.google.android.c2dm.intent.REGISTRATION" /> 
       <category android:name="App.package" /> 
      </intent-filter> 
     </receiver> 
     <service android:name=".GcmIntentService" /> 

清單可以用於每個應用程序，不需要包含在擴展中。這裏的IntentService和廣播接收器的代碼 -

public class GcmIntentService extends IntentService { 

    public static final int NOTIFICATION_ID = 1; 
    private NotificationManager mNotificationManager; 
    NotificationCompat.Builder builder; 
    private static final String TAG = "INTENT_TAG"; 

    public GcmIntentService() { 
     super("GcmIntentService"); 
    } 

    @Override 
    protected void onHandleIntent(Intent intent) { 
     Bundle extras = intent.getExtras(); 
     GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this); 
     String messageType = gcm.getMessageType(intent); 

     if (!extras.isEmpty()) { 
      if (GoogleCloudMessaging. 
        MESSAGE_TYPE_SEND_ERROR.equals(messageType)) { 
       sendNotification("Send error: " + extras.toString()); 
      } else if (GoogleCloudMessaging. 
        MESSAGE_TYPE_DELETED.equals(messageType)) { 
       sendNotification("Deleted messages on server: " + 
         extras.toString()); 
      } else if (GoogleCloudMessaging. 
        MESSAGE_TYPE_MESSAGE.equals(messageType)) { 

       for (int i=0; i<5; i++) { 
        Log.i(TAG, "Working... " + (i+1) 
          + "/5 @ " + SystemClock.elapsedRealtime()); 
        try { 
         Thread.sleep(5000); 
        } catch (InterruptedException e) { 
        } 
       } 
       Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime()); 
       // Post notification of received message. 
       sendNotification("Received: " + extras.toString()); 
       Log.i(TAG, "Received: " + extras.toString()); 
      } 
     } 
     GcmBroadcastReceiver.completeWakefulIntent(intent); 
    } 
    private void sendNotification(String msg) { 
     mNotificationManager = (NotificationManager) 
       this.getSystemService(Context.NOTIFICATION_SERVICE); 

     PendingIntent contentIntent = PendingIntent.getActivity(this, 0, 
       new Intent(this, LoaderActivity.class), 0); 

     NotificationCompat.Builder mBuilder = 
       new NotificationCompat.Builder(this) 
     //.setSmallIcon(R.drawable.ic_launcher) 
     .setContentTitle("GCM Notification") 
     .setStyle(new NotificationCompat.BigTextStyle() 
     .bigText(msg)) 
     .setContentText(msg); 

     mBuilder.setContentIntent(contentIntent); 
     mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build()); 
    } 
} 

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     // Explicitly specify that GcmIntentService will handle the intent. 
     ComponentName comp = new ComponentName(context.getPackageName(), 
       GcmIntentService.class.getName()); 
     // Start the service, keeping the device awake while it is launching. 
     startWakefulService(context, (intent.setComponent(comp))); 
     setResultCode(Activity.RESULT_OK); 
    } 
} 

當我嘗試從服務器發送郵件，通知不會被調用，就好像接收從來沒有得到實例化或註冊。是否因爲我的IntentService和BroacastReceiver都是默認包？

Answer 1

你GCMBroadcastReceiver會在應用程序的主包GcmIntentService，所以如果它在另一個包就不會被發現。

您可以使用此代碼啓動意圖服務：

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     Intent gcmIntent = new Intent (context, GcmIntentService.class); 
     gcmIntent.putExtras (intent.getExtras()); 
     startWakefulService(context, gcmIntent); 
     setResultCode(Activity.RESULT_OK); 
    } 
} 

此外，使用你的代碼的每個應用（我不知道你的代碼是否應該被用作庫項目或一些其他方式）必須在其清單中聲明廣播接收機，並在意圖過濾器的類別中使用正確的包名稱。而且您必須爲GCM定義一個包含該軟件包名稱的權限。