发彩信

作者: 坠叶飘香 | 来源:发表于2019-05-22 23:29 被阅读0次

发送代码流程图

发送彩信.png

OMA- MMS-CTR-v1_2-20030716-C.pdf

image.png

1.send

packages\apps\Mms\src\com\android\mms\data\WorkingMessage.java

public void send(final String recipientsInUI) {
  new Thread(new Runnable() {
    @Override
    public void run() {
      final SendReq sendReq = makeSendReq(conv, subject);

      // Make sure the text in slide 0 is no longer holding onto a reference to
      // the text in the message text box.
      slideshow.prepareForSend();
      sendMmsWorker(conv, mmsUri, persister, slideshow, sendReq, textOnly);

      updateSendStats(conv);
    }
  }, "WorkingMessage.send MMS").start();
}

2.sendMmsWorker

packages\apps\Mms\src\com\android\mms\data\WorkingMessage.java

private void sendMmsWorker(Conversation conv, Uri mmsUri, PduPersister persister,
            SlideshowModel slideshow, SendReq sendReq, boolean textOnly) {
  //跟短信一样：重置主题输入框、内容输入框、附件、mWorkingMessage等
  mStatusListener.onPreMessageSent();
  threadId = conv.ensureThreadId(); //构建或者查询threadId
  newMessage = mmsUri == null;
  if (newMessage) {//如果之前没有往数据库插入这条记录
    // Write something in the database so the new message will appear as sending
    ContentValues values = new ContentValues();
    values.put(Mms.MESSAGE_BOX, Mms.MESSAGE_BOX_OUTBOX);
    values.put(Mms.THREAD_ID, threadId);
    values.put(Mms.MESSAGE_TYPE, PduHeaders.MESSAGE_TYPE_SEND_REQ);
    if (textOnly) {
      values.put(Mms.TEXT_ONLY, 1);
    }

    //Mms表插入一条记录  public static final int MESSAGE_TYPE_OUTBOX = 4
    mmsUri = SqliteWrapper.insert(mActivity, mContentResolver, Mms.Outbox.CONTENT_URI,values);
  }

  try {
    if (newMessage) {
      //更新Mms和part表
      // Create a new MMS message if one hasn't been made yet.
      mmsUri = createDraftMmsMessage(persister, sendReq, slideshow, mmsUri, mActivity, null);
    } else {
      // Otherwise, sync the MMS message in progress to disk.
      updateDraftMmsMessage(mmsUri, persister, slideshow, sendReq, null);
    }

    // Be paranoid and clean any draft SMS up.
    deleteDraftSmsMessage(threadId);
  } finally {
    DraftCache.getInstance().setSavingDraft(false);
  }

  int error = 0;
  try {
    slideshow.finalResize(mmsUri); //压缩附件，更新到part表
  } catch (ExceedMessageSizeException e1) {
    error = MESSAGE_SIZE_EXCEEDED;
  } catch (MmsException e1) {
    error = UNKNOWN_ERROR;
  }

  MessageSender sender = new MmsMessageSender(mActivity, mmsUri, slideshow.getCurrentMessageSize());
  try {
    if (!sender.sendMessage(threadId)) {
      // The message was sent through SMS protocol, we should
      // delete the copy which was previously saved in MMS drafts.
      SqliteWrapper.delete(mActivity, mContentResolver, mmsUri, null, null);
    }

    // Make sure this thread isn't over the limits in message count
    Recycler.getMmsRecycler().deleteOldMessagesByThreadId(mActivity, threadId);
  } catch (Exception e) {
    Log.e(TAG, "Failed to send message: " + mmsUri + ", threadId=" + threadId, e);
  }
}