尝试识别SMS传递确认 [英] Trying to ID the SMS delivery confirmation

问题描述

我当前正在尝试获取每个发送的SMS的确认.我需要确保已发送我的SMS，所以我使用了BroadCastReceived来获取信息:

I am currently trying to get the confirmation for each sended SMS. I need to be sure that my SMS are send, so I used a BroadCastReceived to get the information :

Intent sentIntent = new Intent(SMS_SEND);
    sentIntent.putExtra("key", idSms);
    PendingIntent sentPI = PendingIntent.getBroadcast(getApplicationContext(), 0, sentIntent, PendingIntent.FLAG_UPDATE_CURRENT);

    SmsManager manager = SmsManager.getDefault();
    try{
        manager.sendTextMessage(exp, null, sms, sentPI, null);
        put("sending " + sms); //Just a method to print in a textview use has a console
    } catch (IllegalArgumentException e){
        put("Exception " + e.getMessage());
    }

并使用像这样的广播接收器

and use a broadcast receiver like this

public void onReceive(Context context, Intent intent){
        String idsms = intent.getExtras().getString("key");

        switch (getResultCode()) {
            case Activity.RESULT_OK:
                put("ACK : #" + idsms);

                break;
            case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
            case SmsManager.RESULT_ERROR_RADIO_OFF:
            case SmsManager.RESULT_ERROR_NULL_PDU:
            case SmsManager.RESULT_ERROR_NO_SERVICE:
                put("BOOM " + getResultCode() + "\n\tfrom sms #" + idsms);
                break;
        }
    }

直到我尝试同时发送多条消息之前，这项工作一直很吸引人，额外的接收总是来自最后一次短信发送，因此我无法确定发送哪些文本和不发送哪些文本.

This work like a charm until I try to send multiple messages at the same time, the extra receive is always from the last SMS send, so I can't ID which text are send and which are not.

这是将要发生的简单例子.

Here is a simple example of what will happen.

当我使用循环发送3sms时:

When I use a loop to send 3sms:

id:1，消息:SMS 1
id:2，消息:SMS 2
id:3，消息:SMS 3

id : 1, message : SMS 1
id : 2, message : SMS 2
id : 3, message : SMS 3

接收到的人将会得到:

ACK:#3
ACK:#3
确认:#3

ACK : #3
ACK : #3
ACK : #3

我知道这来自PendingIntent.FLAG_UPDATE_CURRENT，但找不到解决方案.任何人都可以向我解释如何使用PendingIntent.getBroadcast(..)来管理此问题，或者至少使我处于正确的轨道.

I understand that this come from the PendingIntent.FLAG_UPDATE_CURRENT but I can't find a solution. Anyone can explain to me how I should use the PendingIntent.getBroadcast(..) to be able to manage this or at least to put me on the right track.

推荐答案

您的问题是由于PendingIntent可以被系统重用的事实，如果有关请求的某些内容没有不同的话.在您的代码中，您正在传递FLAG_UPDATE_CURRENT，这将导致每次请求PendingIntent时更新存储的Intent及其附加功能.这就是为什么您要为每个消息获取id : 3的原因.为了解决这个问题，您可以每次使用唯一的请求代码(第二个参数)调用getBroadcast()，这将为每个请求创建一个新的PendingIntent，每个请求都有一个单独的Intent和自己的附加功能.

Your problem is due the fact that PendingIntents can be reused by the system, if certain things about the requests are not different. In your code, you're passing FLAG_UPDATE_CURRENT, which is causing the stored Intent and its extras to be updated each time a PendingIntent is requested. This is why you're getting id : 3 for each of the messages. To correct this, you can call getBroadcast() with a unique request code (the second parameter) each time, which will create a new PendingIntent for each request, each with a separate Intent with their own extras.

对于您而言，假设每个消息的idSms都是唯一的，则修复应该很简单.

In your case, the fix should be simple, assuming that idSms is unique for each message.

PendingIntent sentPI = PendingIntent.getBroadcast(getApplicationContext(),
                                                  Integer.parseInt(idSms),
                                                  sentIntent,
                                                  PendingIntent.FLAG_UPDATE_CURRENT);

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