Question

我创建了一个Android应用程序。在这个应用程序中，我使用了推送通知概念。通知发送正确，并在接收端正确接收。但问题是相同的两个通知在接收端显示两次。请告诉我这是什么问题。

这是我的代码：

 @Override
 protected void onMessage(Context context, Intent intent)
 {
  Log.e(TAG, "Received message");

 // String res=intent.getStringExtra("state");
  //Log.e("res",res);
  Log.e("full1 ",""+intent.getExtras().toString());
 // Log.e("full2 ",""+intent.getData().toString());
  //Log.e("full3 ",""+intent.toString());

  String message="";

  String id ="";

  String name ="";

  String state ="";

  String desti ="";

  String mobile_no ="";

  String pickup_time="";

  String unit="";

  String street="";

  String suburb="";

  String city="";

  String fare="";

  String group="";

  String date_of_creation="";

  String sender_name="";

  String sender_email="";

  String sender_mobile="";

  String sender_rating="";

  try
  {
  // message = intent.getStringExtra("data");

   //JSONObject  jsonObject = new JSONObject(message);

  // JSONArray array = new JSONArray(intent.getStringExtra("data"));



   /*for (int i = 0; i < array.length(); i++)
   {*/
    //JSONObject jsonObject2 = array.getJSONObject(o);

    id = intent.getStringExtra("id");

    message = intent.getStringExtra("message");

    name = intent.getStringExtra("name");

    mobile_no = intent.getStringExtra("mobile_no");

    unit = intent.getStringExtra("unit");

    street = intent.getStringExtra("street_name");

    suburb = intent.getStringExtra("suburb");

    state = intent.getStringExtra("state");

    date_of_creation = intent.getStringExtra("date_of_creation");

    desti = intent.getStringExtra("destionation");

    group = intent.getStringExtra("group");

    pickup_time = intent.getStringExtra("pickup_time");

    fare = intent.getStringExtra("fare");

    city =intent.getStringExtra("city");

    sender_name = intent.getStringExtra("sender_name");

    sender_mobile = intent.getStringExtra("sender_mobile");

    sender_email = intent.getStringExtra("sender_email");

    sender_rating = intent.getStringExtra("sender_rating");


  // }
  }
  catch(Exception e)
  {
   e.printStackTrace();
  }
 displayMessage(context, message);


  generateNotification(context, name, id, state, desti, mobile_no,pickup_time,unit,street,suburb,city,fare,group,sender_name,sender_mobile,sender_email,sender_rating);

 }

 @Override
 protected void onDeletedMessages(Context context, int total) 
 {
  Log.i(TAG, "Received deleted messages notification");
  String message = "Gcm deleted "+total;
  displayMessage(context, message);
  // notifies user
  //generateNotification(context, message);
 }

 @Override
 public void onError(Context context, String errorId) 
 {
  Log.i(TAG, "Received error: " + errorId);
  displayMessage(context, " Error "+ errorId);
 }

 @Override
 protected boolean onRecoverableError(Context context, String errorId) 
 {
  // log message
  Log.i(TAG, "Received recoverable error: " + errorId);
  displayMessage(context, "Gcm recovereable error" +errorId);
  return super.onRecoverableError(context, errorId);
 }

 /**
  * Issues a notification to inform the user that server has sent a message.
  */
 /*private static void generateNotification(Context context, String message)
 {
  int icon = R.drawable.windows;

  long when = System.currentTimeMillis();

  NotificationCompat.Builder mBuilder =new NotificationCompat.Builder(context).setSmallIcon(R.drawable.windows).setContentTitle(message).setContentText(message);

  // Creates an explicit intent for an Activity in your app

  SharedPreferences spf = context.getSharedPreferences("MYID", Context.MODE_PRIVATE);

  String noti_ring = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION).toString();

  if(spf.getString("noti_ring", "").equals(""))
  {
   spf.edit().putString("noti_ring", noti_ring).commit();
  }
  else
  {
   noti_ring = spf.getString("noti_ring", "");
  }

  mBuilder.setSound(Uri.parse(noti_ring));

  mBuilder.setAutoCancel(true);

  Intent resultIntent = new Intent(context, ViewRecievedJobs.class);

  resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

  // The stack builder object will contain an artificial back stack for the
  // started Activity.
  // This ensures that navigating backward from the Activity leads out of
  // your application to the Home screen.
  TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);

  // Adds the back stack for the Intent (but not the Intent itself)
  stackBuilder.addParentStack(MainActivity.class);

  // Adds the Intent that starts the Activity to the top of the stack
  stackBuilder.addNextIntent(resultIntent);

  PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);

  mBuilder.setContentIntent(resultPendingIntent);

  NotificationManager mNotificationManager =(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

  mNotificationManager.notify(1, mBuilder.build());

 }*/
 private static void generateNotification(Context context,String name, String id,String state,String desc,String mobileno, String picktime, String unit, String street, String suburb, String city, String fare, String group,String sender_name,String sender_mobile,String sender_email,String sender_rating) 
 {
  int icon = R.drawable.windows;

  long when = System.currentTimeMillis();

  NotificationCompat.Builder mBuilder =new NotificationCompat.Builder(context).setSmallIcon(R.drawable.windows).setContentTitle(name).setContentText(name);

  // Creates an explicit intent for an Activity in your app

  SharedPreferences spf = context.getSharedPreferences("MYID", Context.MODE_PRIVATE);

  String noti_ring = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION).toString();

  if(spf.getString("noti_ring", "").equals(""))
  {
   spf.edit().putString("noti_ring", noti_ring).commit();
  }
  else
  {
   noti_ring = spf.getString("noti_ring", "");
  }

  mBuilder.setSound(Uri.parse(noti_ring));

  mBuilder.setAutoCancel(true);

  Intent resultIntent = new Intent(context, ViewRecievedJobs.class);

  resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

  TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);

  // Adds the back stack for the Intent (but not the Intent itself)
  stackBuilder.addParentStack(MainActivity.class);

  // Adds the Intent that starts the Activity to the top of the stack
  stackBuilder.addNextIntent(resultIntent);

  PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);

  mBuilder.setContentIntent(resultPendingIntent);

  NotificationManager mNotificationManager =(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

  mNotificationManager.notify(1, mBuilder.build());

  System.out.println("Context "+context);

  DatabaseAdmin admin = new DatabaseAdmin(context);

  admin.insert_user(id, name, mobileno, picktime,unit,street,suburb, city, state,desc,fare,group,"1",sender_name,sender_mobile,sender_email,sender_rating);

 // MyService.msg_id_list.add(id);


 }

}

Answer 1

在接收方，我指的是您接收推送通知的代码 GCMIntent服务的onMessage（）方法会有逻辑 generationOfPushNotification

  NotificationManager notificationManager = (NotificationManager)
                context.getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = new Notification(icon, message, when);

        String title = context.getString(R.string.app_name);

        Intent notificationIntent = new Intent(context, MainActivity.class);
        // set intent so it does not start a new activity
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
                Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent intent =
                PendingIntent.getActivity(context, 0, notificationIntent, 0);
        notification.setLatestEventInfo(context, title, message, intent);
        notification.flags |= Notification.FLAG_AUTO_CANCEL;

        // Play default notification sound
        notification.defaults |= Notification.DEFAULT_SOUND;

        // Vibrate if vibrate is enabled
        notification.defaults |= Notification.DEFAULT_VIBRATE;
        notificationManager.notify(0, notification);

此代码用于生成推送通知，其中最后一行是

**notificationManager.notify(0, notification);**

表示发布要在状态栏中显示的通知。

其中 0 是id

和

通知是通知管理员的对象

每次执行通知生成代码时生成通知通知的ID始终为

<强> 0

这就是为什么它会两次或更多次显示相同的通知

所以你需要在其中传递静态变量而不是 0

所以行将是

  notificationManager.notify(id, notification); 
  id++;

其中 id 是一个静态变量，因此当您下次收到通知时，其ID将不同

希望它能解决你为我工作的问题..

在Android中推送通知错误？

1 个答案: