短信发送流程：
UI：收件人，内容
发送->选择Ｃ网还是Ｇ网？
［点击发送］
D/Mms/compose( 1360): [sms]onClick send button mSmsReady[0]=true mSmsReady[1]=true
D/SMS_TRACE( 1360): ComposeMessageActivity confirmSendMessageIfNeeded 912
D/SMS_TRACE( 1360): ComposeMessageActivity sendMessage
［选ＵＩＭ卡还是ＳＩＭ卡］
ComposeMessageActivity: sendMessage
[mSimChooserDialog.setListener(new SimChooserDialog.OnSimPickedListener(){};)]
[mWorkingMessage.send(mDebugRecivpients))]
ＷorkingMessage:send -> preSendSmsWorker
[mStatusListener.onPreMessageSent() ]
[sendSmsWorker -> SmsMessageSender.sendMessage -> queueMessage -> mContext.sendBroadcast SmsReceiverService.ACTION_SEND_MESSAGE ]
D/SMS_TRACE( 1360): SmsMessageSender sendMessage
D/SMS_TRACE( 1360): SmsReceiverService handleMessage intent.getAction = com.android.mms.transaction.SEND_MESSAGE
D/SMS_TRACE( 1360): SmsSingleRecipientSender sendMessage
SmsSingleRecipientSender: sendMessage
[SmsManager smsManager = SmsManager.getDefault(mPhoneId);]
[smsManager.sendMultipartTextMessage]
frameworks/base/telephony/java/android/telephony/SmsManager : sendMultipartTextMessage
[sendTextMessage -> ISms iccISms = ISms.Stub.asInterface(ServiceManager.getService(PhoneFactory.getServiceName("isms", mPhoneId)));
iccISms.sendText]
frameworks/base/telephony/java/com/android/internal/telephony/IccSmsInterfaceManager : sendText
[mDispatcher.sendText]
frameworks/base/telephony/java/com/android/internal/telephony/cdma/CdmaSMSDispatcher : sendText
[sendSubmitPdu -> sendRawPdu]
frameworks/base/telephony/java/com/android/internal/telephony/SMSDispatcher : sendRawPdu
D/SMS_TRACE( 1360): SmsReceiverService handleMessage intent.getAction = com.android.mms.transaction.MESSAGE_SENT
D/SMS_TRACE( 498): ComposeMessageActivity confirmSendMessageIfNeeded 912
D/SMS_TRACE( 498): ComposeMessageActivity sendMessage
D/SMS_TRACE( 498): WorkingMessage send
D/SMS_TRACE( 498): WorkingMessage send run
D/SMS_TRACE( 498): WorkingMessage preSendSmsWorker
D/SMS_TRACE( 498): ComposeMessageActivity onPreMessageSent
D/SMS_TRACE( 498): ComposeMessage resetMessage
D/SMS_TRACE( 498): SmsMessageSender sendMessage
D/SMS_TRACE( 498): SmsReceiverService handleMessage intent.getAction = com.android.mms.transaction.SEND_MESSAGE
D/SMS_TRACE( 498): SmsSingleRecipientSender sendMessage
D/SMS_TRACE( 498): SmsManager sendTextMessage
D/SMS_TRACE( 348): IccSmsInterfaceManager sendText
D/SMS_TRACE( 348): CdmaSMSDispatcher sendText
D/SMS_TRACE( 348): CdmaSMSDispatcher sendSubmitPdu
D/SMS_TRACE( 348): SMSDispatcher sendRawPdu
D/SMS_TRACE( 348): SMSDispatcher sendRawPdu SINGLE_PART_SMS
D/SMS_TRACE( 348): RIL sendCdmaSms
D/SMS_TRACE( 498): SmsReceiverService handleMessage intent.getAction = com.android.mms.transaction.MESSAGE_SENT