Android中SMS的接收处理

在解析WAPPUSH over SMS时，看了一下Android里SMS接收的流程，并按照自己需要的流程记录，其他分支的详细处理并未讲述。PDU数据的encode/decode也并未在本文中进行解析，有兴趣的读者可以到相应的代码处自己解读一下。

Android中，RIL用RILReciever接收SMS pdu，并根据不同的信息类型用相应函数来处理。因手机制式的差异，用GsmSmsDispatcher或CdmaSmsDispatcher来做各自的消息处理并分发。最后的分发是通过发送相应的Broadcast，所以，对感兴趣的消息处理，可以注册Receiver来监听相应的Broadcast，实现自己的SMS/MMS/Wap push，以及其他类型消息的接收处理。

RIL构造函数中，Receiver的初始化[在文件RIL.java中]
[java]
mReceiver = newRILReceiver();
mReceiverThread =new Thread(mReceiver, "RILReceiver");
mReceiverThread.start();

其中的类型
mReceiver: RILReceiver
mReceiverThread: Thread

RILReceiver实现了Runnable

关注RILReceiver线程的实现[在RILReceiver::run()中]

[java] public void run() {
    int retryCount= 0;

    try {for (;;) {
        LocalSockets = null;
        LocalSocketAddress l;

        try {
            s = newLocalSocket();
            l = newLocalSocketAddress(SOCKET_NAME_RIL,
                   LocalSocketAddress.Namespace.RESERVED);
            s.connect(l);
        } catch (IOException ex){
            // 。。。
        }

        retryCount= 0;
        mSocket =s;
        int length= 0;

        try {
            InputStreamis = mSocket.getInputStream();

            for(;;) {
               Parcel p;

               length = readRilMessage(is, buffer);
                if(length < 0) {
                   // End-of-stream reached
                   break;
                }

                p =Parcel.obtain();
               p.unmarshall(buffer, 0, length);
               p.setDataPosition(0);

                processResponse(p);
               p.recycle();
            }
        } catch(java.io.IOException ex) {
            // …
        } catch(Throwable tr) {
            // …
        }

        // …
    }} catch(Throwable tr) {
       Log.e(LOG_TAG,"Uncaught exception", tr);
    }
}
        public void run() {
            int retryCount= 0;

            try {for (;;) {
                LocalSockets = null;
                LocalSocketAddress l;

                try {
                    s = newLocalSocket();
                    l = newLocalSocketAddress(SOCKET_NAME_RIL,
                           LocalSocketAddress.Namespace.RESERVED);
                    s.connect(l);
                } catch (IOException ex){
                    // 。。。
                }

                retryCount= 0;
                mSocket =s;
                int length= 0;

try {
InputStreamis = mSocket.getInputStream();

                    for(;;) {
                       Parcel p;

                       length = readRilMessage(is, buffer);
                        if(length < 0) {
                           // End-of-stream reached

补充：移动开发 , Android ,