MTK之后台发送中英文短信篇

 个人理解和收集所书，有误请指出，转载请注明出处

 
 从网上看到很多关于后台发送中英文短信的方法，先自己总结了两种，并予以比较。

 

方法一

 

这种方法支持两种编码格式，SMSAL_DEFAULT_DCS(7bit 编码)和SMSAL_UCS2_DCS(Unicode编码)

 

弊端：1)不可以发送长短信，对于7bit编码最多支持160个字符，对Unicode编码只支持70字符
          2）不能得知短信发送的状态，如：是否正在发送，发送完毕等

 

既然这种方法这么大的弊端，为什么还列出来呢？
原因在于，如果你并不需要频繁的发送短信，而且发送的短信内容相对较少那还是可行的。

 

BOOL mmi_send_message(S8 *pPhoneNum, S8 *pMessageContent, U8 dcs)
{
       mmi_sms_send_msg_req_struct *sendmessage = NULL;
       S8 tmp;
       U8 i;
       U16 msg_len = 0;

 

       if(g_pwr_context.CurrentServiceType != FULL_SERVICE)
       {
             return FALSE;
       }

 

       sendmessage = (mmi_sms_send_msg_req_struct*)OslConstructDataPtr(sizeof(*sendmessage));
       sendmessage->ref_count = 1;
       sendmessage->msg_len = sizeof(mmi_sms_send_msg_req_struct);
       sendmessage->profile = 0;
       sendmessage->reply_index = MMI_FRM_SMS_INVALID_INDEX;
       sendmessage->para = 0;
       memset(sendmessage->sc_addr.number, 0xff, MAX_CC_ADDR_LEN);
       sendmessage->sc_addr.length = 0xff;
       sendmessage->sc_addr.type = 0xff;
       sendmessage->vp = 0xff;
       sendmessage->pid = 0xff;
       sendmessage->udhi = 0;
       sendmessage->seq_num = 0;
       memset(sendmessage->msg, 0, SMSAL_MAX_MSG_LEN);
       mmi_frm_sms_convert_ascii_num_to_l4_num(&sendmessage->dest, (U8*)pPhoneNum);

 

       if(SMSAL_DEFAULT_DCS == dcs)
       {
             msg_len = strlen((S8*)pMessgeContent);
        }
       else
       {
             msg_len = pfnUnicodeStrlen((S8*)pMessgeContent) * 2;

 

             for(i=0; i<msg_len; i+=2)
             {
                     tmp = pMessageContent[i];
                     pMessageContent[i] = pMessageContent[i+1];
                     pMessageContent[i+1] = tmp;
              }

 

        }

 

       if(SMSAL_MAX_MSG_LEN < msg_len)
       {
               return FALSE;
       }

 

       sendmessage->length = msg_len;
       memcpy(sendmessage->msg, (U8*)pMessageContent, sendmessage->length);

 

       mmi_frm_sms_send_message(MOD_MMI,
                                                              MOD_L4C,
                                                              0,
                                                              PRT_MSG_ID_MMI_SMS_SEND_MSG_REQ,
                                                              (oslParaType*)sendmessage,
                                                              NULL);

 

 
          return TRUE;
}

 

方法二

 

这种方法是将所传入的短信内容都转为Unicode编码方式进行发送

 

弊端：如果是7bit编码的话被转为了Unicode编码，大大减少了发送的内容

 

优势：支持长短信发送，并且可以明确知道短信发送状态（有回调函数）

 

void mmi_send_message(S8 *pPhoneNum, S8 *pMessageContent)
{
         U8 i;
         byte result;
         S8 textbufUCS2[(MAX_SMS_CONTENT_LEN+1)*2];
         EMSData *pEMS = NULL;

 

         if(g_pwr_context.CurrentServiceType != FULL_SERVICE)
         {
                 return;
          }

 

         ReleaseEMSEditBuffer();
         pEMS = GetEMSDataForEdit(0, 0);

         PendingSaveSendData.mti = SMSAL_MTI_SUBMIT;
         memset(PendingSaveSendData.TPUD, 0, sizeof(PendingSaveSendData.TPUD));

 

          for (i = 1; i < mmi_msg_get_seg_num(); i++)
          {
                 PendingSaveSendData.TPUDLen[i] = 0;
                 PendingSaveSendData.TPUD_p[i] = NULL;
                 PendingSaveSendData.l4index[i] = SMS_INVALID_INDEX;
                 PendingSaveSendData.TPUD_udhi[i] = FALSE;
           }

 

          memset(textbufUCS2, 0, sizeof(textbufUCS2));
          mmi_chset_text_to_ucs2((kal_uint8*)textbufUCS2, sizeof(textbufUCS2),  (kal_uint8*)pMessageContent);

 

          result = AppendEMSString(IMM_INPUT_TYPE_SENTENCE,
                                                          pEMS,
                                                          (U8*)textbufUCS2,
                                                          SMSAL_UCS2_DCS,
                                                          NULL); 

 

 /* mmi_get_sms_segments函数的实现，可以参看手机输入短信的时候右上角显示的可输入的字符个数，例如，如果输入了长短信的话，第一页可以输入160，第二页可是输入146，从第三页之后都是152。这个长短不一和是因为每段短信的头处加入一些数据头，以便进行拼接所用的。
支持的长短信的页数定义在custom/ps/XXX_XX_bb/Customer_ps_inc.h，名称为MMI_SMS_MAX_MSG_SEG
 该值默认为4
 */

 

           PendingSaveSendData.totalSegments = mmi_get_sms_segments(pEMS->textLength); //获取短信的段数

 

           if(0xFF == PendingSaveSendData.totalSegments)
           {
                  gb_sending_sms = FALSE;
                  return;
            }

  
           if (result)
           {
                 mmi_frm_sms_send_struct *sendData = OslMalloc(sizeof(mmi_frm_sms_send_struct));
                 gb_sending_sms = TRUE;
  
                 memset((S8 *) sendData,0,sizeof(mmi_frm_sms_send_struct));
                 memset(sendData->number,0,MAX_DIGITS_SMS); 
                 strcpy((S8 *) sendData->number, (S8*)pPhoneNum);

                  mmi_frm_sms_send_sms(send_message_callback, MOD_MMI, sendData);
                  OslMfree(sendData);
                 return;
         }

 

         gb_sending_sms = FALSE;
         return; 
}

 

//发送短信完成后的回调函数
void send_message_callback(void *number, module_type mod, U16 result)
{
         U16 currentSCRID;

          gb_sending_sms = FALSE;
          mmi_frm_sms_delete_screen_history();
          currentSCRID = GetActiveScreenId();

 

 
          if((currentSCRID == SCR_ID_MSG_SENDING)
               || (currentSCRID == SCR_ID_MSG_PROCESSING))
          {
                      GoBackHistory();
          }

 

         return;
}