Android 2.3发短信详细流程(5)

        mCm.sendSMS(IccUtils.bytesToHexString(smsc),
                IccUtils.bytesToHexString(pdu), reply);
    }离成功已经不远了....
我们知道，CommandsInterface是一个特殊的接口，它的RIL.java息息相关，而在上面的代码中sendSms()调用来CommandsInterface对象的sendSMS()方法来做事情，而CommandsIterface是一个接口，所以事情只好由它的儿子(其实是孙子，RIL的爸爸BaseCommands是CommandsInterface的儿子)来完成，好，进入RIL.java.

8. 第七阶段：RIL.java(/frameworks/base/telephony/java/com/android/internal/telephony/RIL.java)

只要研究过ril层的，对这玩意都一定很熟悉，所以直接看它的sendSMS()方法：

view plaincopy to clipboardprint?public void sendSMS (String smscPDU, String pdu, Message result) { 
        RILRequest rr 
                = RILRequest.obtain(RIL_REQUEST_SEND_SMS, result); 
 
        rr.mp.writeInt(2); 
        rr.mp.writeString(smscPDU); 
        rr.mp.writeString(pdu); 
 
        if (RILJ_LOGD) riljLog(rr.serialString() + "> " + requestToString(rr.mRequest)); 
 
        send(rr); 
    } 
 
//send(RILRequest rr)  
<pre name="code" class="java">private void 
    send(RILRequest rr) { 
        Message msg; 
 
        msg = mSender.obtainMessage(EVENT_SEND, rr); 
 
        acquireWakeLock(); 
 
        msg.sendToTarget(); 
    } 
public void sendSMS (String smscPDU, String pdu, Message result) {
        RILRequest rr
                = RILRequest.obtain(RIL_REQUEST_SEND_SMS, result);

        rr.mp.writeInt(2);
        rr.mp.writeString(smscPDU);
        rr.mp.writeString(pdu);

        if (RILJ_LOGD) riljLog(rr.serialString() + "> " + requestToString(rr.mRequest));

        send(rr);
    }

//send(RILRequest rr)
<pre name="code" class="java">private void
    send(RILRequest rr) {