Android 源码阅读之MMS

上篇是短信，现在读彩信，从sendMmsWork开始：

com.android.mms.data.WorkingMessage.java

sendMmsWorker -> MmsMessageSender.sendMessage(threadId)

com.android.mms.transaction.MmsMessageSender.java

sendMessage -> mContext.startService[TransactionService.class]

[注意 pdu.getMessageType() != PduHeaders.MESSAGE_TYPE_SEND_REQ throw new MmsException]

com.android.mms.transaction.TransactionService.java

onStartCommand -> launchTransaction -> ServiceHandler.sendMessage[EVENT_TRANSACTION_REQUEST]

ServiceHandler:handlemessage -EVENT_TRANSACTION_REQUEST - Transaction.SEND_TRANSACTION-

transaction = new SendTransaction -processTransaction(transaction)

SendTransaction.process

[注意，标红处查看代码 getTransactionType case PduHeaders.MESSAGE_TYPE_SEND_REQ:

return Transaction.SEND_TRANSACTION]

com.android.mms.transaction.SendTransaction.java

process -> run -> sendPdu -> HttpUtils.httpConnection

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