static {URL_MATCHER.addURI("icc", "adn", ADN);URL_MATCHER.addURI("icc", "adn/subId/#", ADN_SUB);...}

static块中加入了adn的uri，adn/subid/#可以指定读取的sim卡

  public Cursor query(Uri url, String[] projection, String selection,String[] selectionArgs, String sort) {...switch (URL_MATCHER.match(url)) {case ADN:return loadFromEf(IccConstants.EF_ADN, mSubscriptionManager.getDefaultSubId());...}

query方法，调用loadFromEf

  private MatrixCursor loadFromEf(int efType, int subId) {List<AdnRecord> adnRecords = null;try {IIccPhoneBook iccIpb = getIccPhbService();if (iccIpb != null) {adnRecords = iccIpb.getAdnRecordsInEfForSubscriber(subId, efType);}} catch (RemoteException ex) {log(ex.toString());} catch (SecurityException ex) {log(ex.toString());}if (adnRecords != null) {// Load the resultsfinal int size = adnRecords.size();final MatrixCursor cursor = new MatrixCursor(ADDRESS_BOOK_COLUMN_NAMES, size);if (DBG) {log("adnRecords.size=" + size);}for (int i = 0; i < size; i++) {loadRecord(adnRecords.get(i), cursor, i);}return cursor;}...}

首先获取AdnRecord列表然后，然后loadRecord依据这个列表生成cursor返回。生成cursor的函数很简单，不做分析了。

    private IIccPhoneBook getIccPhbService() {IIccPhoneBook iccIpb = IIccPhoneBook.Stub.asInterface(ServiceManager.getService("simphonebook"));return iccIpb;}

读取的服务名称叫做simphonebook，该服务添加的代码在UiccPhoneBookController中：

    public UiccPhoneBookController(Phone[] phone) {if (ServiceManager.getService("simphonebook") == null) {ServiceManager.addService("simphonebook", this);}mPhone = phone;}

构造函数中添加了服务，UiccPhoneBookController实例是在phone进程启动就初始化的，phone进程又是常驻的，所以phone的相关服务基本等于是永远可用的。

    public List<AdnRecord> getAdnRecordsInEfForSubscriber(int subId, int efid)throws android.os.RemoteException {IccPhoneBookInterfaceManagerProxy iccPbkIntMgrProxy =getIccPhoneBookInterfaceManagerProxy(subId);if (iccPbkIntMgrProxy != null) {return iccPbkIntMgrProxy.getAdnRecordsInEf(efid);} ...}

然后调用IccPhoneBookInterfaceManagerProxy的getAdnRecordsInEf

  private IccPhoneBookInterfaceManagerProxygetIccPhoneBookInterfaceManagerProxy(int subId) {...try {return ((PhoneProxy)mPhone[(int)phoneId]).getIccPhoneBookInterfaceManagerProxy();...}

frameworks/opt/telephony/src/java/com/android/internal/telephony/PhoneProxy.java

    public IccPhoneBookInterfaceManagerProxy getIccPhoneBookInterfaceManagerProxy() {return mIccPhoneBookInterfaceManagerProxy;}

  public PhoneProxy(PhoneBase phone) {...mIccPhoneBookInterfaceManagerProxy = new IccPhoneBookInterfaceManagerProxy(phone.getIccPhoneBookInterfaceManager());...}

IccPhoneBookInterfaceManagerProxy是在PhoneProxy构造函数中初始化的。

   public List<AdnRecord> getAdnRecordsInEf(int efid) {return mIccPhoneBookInterfaceManager.getAdnRecordsInEf(efid);}

这里的mIccPhoneBookInterfaceManager就是PhoneProxy构造函数传递进去的phone.getIccPhoneBookInterfaceManager()

            mSimPhoneBookIntManager = new SimPhoneBookInterfaceManager(this);

SimPhoneBookInterfaceManager的基类是IccPhoneBookInterfaceManager

    public synchronized List<AdnRecord> getAdnRecordsInEf(int efid) {...synchronized (mLock) {checkThread();AtomicBoolean status = new AtomicBoolean(false);Message response = mBaseHandler.obtainMessage(EVENT_LOAD_DONE, status);if (mAdnCache != null) {mAdnCache.requestLoadAllAdnLike(efid, mAdnCache.extensionEfForEf(efid), response);waitForResult(status);}...}return mRecords;}

frameworks/opt/telephony/src/java/com/android/internal/telephony/uicc/AdnRecordCache.java

   public voidrequestLoadAllAdnLike (int efid, int extensionEf, Message response) {ArrayList<Message> waiters;ArrayList<AdnRecord> result;if (efid == EF_PBR) {result = mUsimPhoneBookManager.loadEfFilesFromUsim();} else {result = getRecordsIfLoaded(efid); //该方法实际是从缓存读取数据}logd("requestLoadAllAdnLike result = null ?" + (result == null));// Have we already loaded this efid?if (result != null) {   //如果缓存已有数据，returnif (response != null) {AsyncResult.forMessage(response).result = result;response.sendToTarget();}return;}// Have we already *started* loading this efid?waiters = mAdnLikeWaiters.get(efid);if (waiters != null) { //正在读取中，把回调消息加入等待队列中，returnwaiters.add(response);return;}waiters = new ArrayList<Message>();waiters.add(response);mAdnLikeWaiters.put(efid, waiters);...new AdnRecordLoader(mFh).loadAllFromEF(efid, extensionEf,obtainMessage(EVENT_LOAD_ALL_ADN_LIKE_DONE, efid, 0));  //正真读取}

流程分析已经写在注释中，usim是另一条分支（本流程不做解析），继续看loadAllFromEF

   public voidloadAllFromEF(int ef, int extensionEF,Message response) {...mFh.mCi.queryPhbStorageInfo(type,obtainMessage(EVENT_PHB_QUERY_STAUTS));...}

调用ril的queryPhbStorageInfo向modem发送请求，读取结果会在handleMessage中处理

                case EVENT_PHB_QUERY_STAUTS:/** response.obj.result[0] is number of current used entries* response.obj.result[1] is number of total entries in the* storage*/ar = (AsyncResult) (msg.obj);int[] info = (int[]) (ar.result);if (ar.exception != null) {throw new RuntimeException("PHB Query Info Error",ar.exception);}type = getPhbStorageType(mEf);readInfo = new int[3];readInfo[0] = 1; // current_index;readInfo[1] = info[0]; // # of remaining entriesreadInfo[2] = info[1]; // # of total entriesmAdns = new ArrayList<AdnRecord>(readInfo[2]);for (int i = 0; i < readInfo[2]; i++) {// fillin empty entries to mAdnsadn = new AdnRecord(mEf, i + 1, "", "");mAdns.add(i, adn);}readEntryFromModem(type, readInfo);mPendingExtLoads = 1;break;

获取到了卡联系人总数目，先用空值初始化mAdn列表，然后调用readEntryFromModem正真的读取数据

    private void readEntryFromModem(int type, int[] readInfo) {...mFh.mCi.ReadPhbEntry(type, readInfo[0], eIndex,obtainMessage(EVENT_PHB_LOAD_ALL_DONE, readInfo));}

消息处理：

          case EVENT_PHB_LOAD_ALL_DONE:ar = (AsyncResult) (msg.obj);readInfo = (int[]) (ar.userObj);entries = (PhbEntry[]) (ar.result);...for (int i = 0; i < entries.length; i++) {adn = getAdnRecordFromPhbEntry(entries[i]);if (adn != null) {mAdns.set(adn.mRecordNumber - 1, adn);readInfo[1]--;Rlog.d(LOG_TAG, "Read entries: " + adn);}}...

for循环中向mAdns添加数据。AdnRecordLoader会向AdnRecordCache发消息，EVENT_LOAD_ALL_ADN_LIKE_DONE消息处理：

            case EVENT_LOAD_ALL_ADN_LIKE_DONE:...if (ar.exception == null) {mAdnLikeFiles.put(efid, (ArrayList<AdnRecord>) ar.result);} else {Rlog.d(LOG_TAG, "EVENT_LOAD_ALL_ADN_LIKE_DONE exception", ar.exception);}notifyWaiters(waiters, ar);...break;

一路向上传递消息，这里的ar其实就包含了联系人数据列表ArrayList<AdnRecord>

        <service android:name="com.mediatek.contacts.simservice.SIMProcessorService"/><receiver android:name="com.mediatek.contacts.simcontact.BootCmpReceiver"><intent-filter><action android:name="android.intent.action.PHB_STATE_CHANGED" /><action android:name="android.intent.action.BOOT_COMPLETED" /><action android:name="android.intent.action.USER_SWITCHED_FOR_MULTIUSER_APP"/><action android:name="com.android.contacts.REFRESH_SIM_CONTACT"/></intent-filter></receiver>

packages/apps/Contacts/src/com/mediatek/contacts/simcontact/BootCmpReceiver.java

public void onReceive(Context context, Intent intent) {...if (action.equals(TelephonyIntents.ACTION_PHB_STATE_CHANGED)) {processPhoneBookChanged(context, intent);}...
}

收到TelephonyIntents.ACTION_PHB_STATE_CHANGED广播后，该广播表示卡联系人可用不可用，调用processPhoneBookChanged

 private void processPhoneBookChanged(Context context, Intent intent) {...if (phbReady && subId > 0) {startSimService(context, subId, SIMServiceUtils.SERVICE_WORK_IMPORT);} else if (subId > 0 && !phbReady) {startSimService(context, subId, SIMServiceUtils.SERVICE_WORK_REMOVE);}}

广播处理有两个分支，一个是删除卡联系人，一个是导入卡联系人

    @Overridepublic void onCreate() {super.onCreate();Log.i(TAG, "[onCreate]...");mProcessorManager = new SIMProcessorManager(this, mListener);}@Overridepublic void onStart(Intent intent, int startId) {super.onStart(intent, startId);processIntent(intent);}

 private void processIntent(Intent intent) {...mProcessorManager.handleProcessor(getApplicationContext(), subId, workType, intent);}

private SIMProcessorManager.ProcessorManagerListener mListener 

    public void handleProcessor(Context context, int subId, int workType, Intent intent) {Log.i(TAG, "[handleProcessor] subId=" + subId + ",time=" + System.currentTimeMillis());SIMProcessorBase processor = createProcessor(context, subId, workType, intent);if (processor != null && mListener != null) {Log.d(TAG, "[handleProcessor]Add processor [subId=" + subId + "] to threadPool.");mListener.addProcessor(/* 1000 + slotId * 300 */0, processor);}}

    private SIMProcessorBase createProcessor(Context context, int subId, int workType,Intent intent, ProcessorCompleteListener listener) {...if (workType == SIMServiceUtils.SERVICE_WORK_IMPORT) {processor = new SIMImportProcessor(context, subId, intent, listener);...}

     @Overridepublic void addProcessor(long scheduleTime, ProcessorBase processor) {if (processor != null) {try {mExecutorService.execute(processor);} catch (RejectedExecutionException e) {Log.e(TAG, "[addProcessor] RejectedExecutionException: " + e.toString());}}}

public abstract class ProcessorBase implements RunnableFuture<Object> {

   public void run() {try {doWork();} finally {mDone = true;if (mListener != null && !mCanceled) {mListener.onProcessorCompleted(mIntent);}}}

    @Overridepublic void doWork() {...SIMServiceUtils.deleteSimContact(mContext, mSubId);...int simType = SimCardUtils.getSimTypeBySubId(mSubId);final Uri iccUri = SubInfoUtils.getIccProviderUri(mSubId);Cursor simCursor = querySimContact(mContext, mSubId, simType, iccUri);Log.i(TAG, "[dowork]simType = " + simType + ",simType =" + simType + ",mSubId = " + mSubId);importAllSimContacts(mContext, mSubId, simCursor, simType);if (simCursor != null) {simCursor.close();}}

 private Cursor querySimContact(Context context, int subId, int simType, Uri iccUri) {...cursor = context.getContentResolver().query(iccUri, COLUMN_NAMES, null, null, null);...return cursor;}

   private void importAllSimContacts(Context context, final Cursor cursor,final ContentResolver resolver, int subId, int simType, HashSet<Long> insertSimIdSet,boolean importSdnContacts) {...while (cursor.moveToNext()) {...i = actuallyImportOneSimContact(context, cursor, resolver, subId, simType,indexInSim, importSdnContacts, operationList, i, account, isUsim,accountSubId, countryCode);...if (i > MAX_OP_COUNT_IN_ONE_BATCH) {...resolver.applyBatch(ContactsContract.AUTHORITY, operationList);...}}...}