整理：iOS 短信与电话事件的获取

background information:

Core Telephony

iOS 4.0 的官方 API 裡頭，多了一個叫做 Core Telephony 的 framework；一直以來 Core Telephony 都是 private API，現在開放出來，但是從文件來看，裡頭根本沒有幾行，既沒有告訴你應該怎麼用，也沒有範例，你從 framework 裡頭寥寥四個 class 的 header 中，也搞不清楚，究竟可以把這個東西用在什麼用途上。

目前只知道可以拿來做兩件事情：1. 知道目前你這隻 iPhone 用的是哪個電信商的服務；2. 知道現在 iPhone 是不是在打電話。

※ 電信商資訊

用 CTTelephonyNetworkInfo 與 CTCarrier 這兩個 class，就可以取得電信商資訊，例如：

CTTelephonyNetworkInfo *info = [[CTTelephonyNetworkInfo alloc] init];
CTCarrier *carrier = info.subscriberCellularProvider;
NSLog(@"carrier:%@", [carrier description]);

倒出來的結果像是：

CTCarrier (0x140dc0) {
	Carrier name: [中華電信]
	Mobile Country Code: [466]
	Mobile Network Code:[92]
	ISO Country Code:[tw]
	Allows VOIP? [YES]
}

然後，如果你對 CTTelephonyNetworkInfo 餵一個 block 進去，像是：

info.subscriberCellularProviderDidUpdateNotifier = ^(CTCarrier *carrier) {NSLog(@"carrier:%@", [carrier description]);};

如此一來，當你的 iPhone 漫遊到了其他網路的時候，就會執行你這段 block，但光是知道手機現在漫遊在哪個電信商的網路裡頭，大概能做的，就是一些跟電信商關係密切的服務之類，你或許可以決定軟體裡頭有哪些功能，一定要在某個電信商的網路才能用；電信商自己做 iPhone 軟體的時候大概會想做這種事情。

※ 通話資料

用 CTCallCenter 與 CTCall 這兩個 class，便可以知道目前 iPhone 是否在通話中。CTCallCenter 的用途是用來監控是不是有電話打進來、正在接聽、或是已經掛斷，而 CTCall 則是將每一則通話事件包裝成一個物件。我們先寫一小段程式－

CTCallCenter *center = [[CTCallCenter alloc] init];
center.callEventHandler = ^(CTCall *call) {
	NSLog(@"call:%@", [call description]);
};

然後，在實機上執行，接著打通電話到這支 iPhone 上，打通電話進去，然後馬上掛斷（人好端端的，幹嘛為了測試程式跟自己的電話費帳單過不去呢？）就可以看到 iPhone 執行了我們的 block，把 CTCall 物件倒出來：

CTCall (0x143400) {
	callState: [CTCallStateIncoming]
	Call ID: [CE5F9337-1990-4254-8797-1CCEA85B061B]
}
CTCall (0x10bac0) {
	callState: [CTCallStateDisconnected]
	Call ID: [CE5F9337-1990-4254-8797-1CCEA85B061B]
}

CTCall 物件只有兩個屬性，一是通話狀態（來電中、通話中…），二是這則通話的 unique id，除此之外沒有其他資訊，你沒辦法知道這通電話是從哪裡打來的，只能知道有電話進來而已，也沒辦法透過這個 API 打電話出去。

大抵上可以想到的用途，就是當你的程式執行到一半的時候，程式流程被電話打斷，這時候就可能要中斷原本正在做的事情，在通話結束之後恢復。

最後，CTCallCenter 與 CTTelephonyNetworkInfo，在模擬器上是沒有辦法用的，呼叫 alloc、init 之後回傳的結果只會是 nil。

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1.

首先添加coreTelephony.framework

 #import
 #include
 #include
 #include
 #include
 typedef struct __CTSMSMessage CTSMSMessage;
 NSString *CTSMSMessageCopyAddress(void *, CTSMSMessage *);
 NSString *CTSMSMessageCopyText(void *, CTSMSMessage *);
 id CTTelephonyCenterGetDefault(void);
 void CTTelephonyCenterAddObserver(id,id,CFNotificationCallback,NSString*,void*,int);
 void dolog(id formatstring,...)
 {
     va_list arglist;
     if (formatstring)
     {
         va_start(arglist, formatstring);
         id outstring = [[NSString alloc] initWithFormat:formatstring arguments:arglist];
         printf("%s\n", [outstring UTF8String]);
         va_end(arglist);
     }
 }
 static void callback(CFNotificationCenterRef center,
                      void *observer, CFStringRef name,
                      const void *object, CFDictionaryRef userInfo)
 {

     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
     // printf("NOTIFICATION: %s\n", [name UTF8String]);
     if (!userInfo) return;

     NSDictionary *info = (NSDictionary*)userInfo;
     int dcount = CFDictionaryGetCount(userInfo);
     id keys = [(NSDictionary*)userInfo allKeys];
     int i;
     for (i = 0; i < dcount; i++)
     {
         id key = [keys objectAtIndex:i];
         dolog(@"  %@: %@", key, [info objectForKey:key]);
     }


     if ([[(NSDictionary *)userInfo allKeys]
          containsObject:@"kCTSMSMessage"]) // SMS Message
     {
         CTSMSMessage *message = (CTSMSMessage *)
         [(NSDictionary *)userInfo objectForKey:@"kCTSMSMessage"];
         NSString *address = CTSMSMessageCopyAddress(NULL, message);
         NSString *text = CTSMSMessageCopyText(NULL, message);
         NSArray *lines = [text componentsSeparatedByString:@"\n"];

         printf("  %s %d\n", [address cString], [lines count]);
         printf("  %s\n", [text cString]);
         fflush(stdout);
     }

     [pool release];

     return ;
 }
 static void signalHandler(int sigraised)
 {
     printf("\nInterrupted.\n");
     exit(0);
 }
 int main(int argc, char **argv)
 {
     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

     // Initialize listener by adding CT Center observer implicit
     id ct = CTTelephonyCenterGetDefault();
     CTTelephonyCenterAddObserver( ct, NULL, callback,NULL,NULL,
                                  CFNotificationSuspensionBehaviorHold);

     // Handle Interrupts
     sig_t oldHandler = signal(SIGINT, signalHandler);
     if (oldHandler == SIG_ERR)
     {
         printf("Could not establish new signal handler");
         exit(1);
     }

     // Run loop lets me catch notifications
     printf("Starting run loop and watching for notification.\n");
     CFRunLoopRun();

     // Shouldn't ever get here. Bzzzt
     printf("Unexpectedly back from CFRunLoopRun()!\n");
     [pool release];
 }

2.

 extern NSString* const kCTSMSMessageReceivedNotification;
 extern NSString* const kCTSMSMessageReplaceReceivedNotification;
 extern NSString* const kCTSIMSupportSIMStatusNotInserted;
 extern NSString* const kCTSIMSupportSIMStatusReady;



 typedef struct __CTCall CTCall;
 extern NSString *CTCallCopyAddress(void*, CTCall *);

 void* CTSMSMessageSend(id server,id msg);
 typedef struct __CTSMSMessage CTSMSMessage;
 NSString *CTSMSMessageCopyAddress(void *, CTSMSMessage *);
 NSString *CTSMSMessageCopyText(void *, CTSMSMessage *);


 int CTSMSMessageGetRecordIdentifier(void * msg);
 NSString * CTSIMSupportGetSIMStatus();
 NSString * CTSIMSupportCopyMobileSubscriberIdentity();

 id  CTSMSMessageCreate(void* unknow/*always 0*/,NSString* number,NSString* text);
 void * CTSMSMessageCreateReply(void* unknow/*always 0*/,void * forwardTo,NSString* text);


 id CTTelephonyCenterGetDefault(void);
 void CTTelephonyCenterAddObserver(id,id,CFNotificationCallback,NSString*,void*,int);
 void CTTelephonyCenterRemoveObserver(id,id,NSString*,void*);
 int CTSMSMessageGetUnreadCount(void);

 static void callback(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo)
 {
     NSString *notifyname=(NSString *)name;
     if ([notifyname isEqualToString:@"kCTCallStatusChangeNotification"])//电话
     {
         NSDictionary *info = (NSDictionary*)userInfo;

         NSString *state=[[info objectForKey:@"kCTCallStatus"] stringValue];
         if ([state isEqualToString:@"5"])//disconnect
             NSLog(@"未接:%@",state);

     }
     else if ([notifyname isEqualToString:@"kCTCallIdentificationChangeNotification"])
     {
 //        CTCallCenter *center = [[CTCallCenter alloc] init];
 //        center.callEventHandler = ^(CTCall *call) {
 //            NSLog(@"call:%@", [call description]);
 //        };

         NSDictionary *info = (NSDictionary *)userInfo;
         CTCall *call = (CTCall *)[info objectForKey:@"kCTCall"];
         NSString *caller = CTCallCopyAddress(NULL, call);
         NSLog(@"电话号码:%@",caller);
         //CTCallDisconnect(call);
         /* or one of the following functions: CTCallAnswer
          CTCallAnswerEndingActive
          CTCallAnswerEndingAllOthers
          CTCallAnswerEndingHeld
         */

     }
     else if ([notifyname isEqualToString:@"kCTRegistrationDataStatusChangedNotification"])
     {

     }
     else if ([notifyname isEqualToString:@"kCTSMSMessageReceivedNotification"])
     {//api 已过期
         if ([[(NSDictionary *)userInfo allKeys]
              containsObject:@"kCTSMSMessage"]) // SMS Message
         {
             CTSMSMessage *message = (CTSMSMessage *)
             [(NSDictionary *)userInfo objectForKey:@"kCTSMSMessage"];
             NSString *address = CTSMSMessageCopyAddress(NULL, message);
             NSString *text = CTSMSMessageCopyText(NULL, message);
             //NSArray *lines = [text componentsSeparatedByString:@"\n"];

             //printf("  %s %d\n", [address cString], [lines count]);
             //printf("  %s\n", [text cString]);
             fflush(stdout);

         }
     }
     else if ([notifyname isEqualToString:@"kCTMessageReceivedNotification"])//收到短信
     {
         /*
          kCTMessageIdKey = "-2147483636";
          kCTMessageTypeKey = 1;
         */

         NSDictionary *info = (NSDictionary *)userInfo;
         CFNumberRef msgID = (CFNumberRef)[info objectForKey:@"kCTMessageIdKey"];
         int result;
         CFNumberGetValue((CFNumberRef)msgID, kCFNumberSInt32Type, &result);

         /*
         Class CTMessageCenter = NSClassFromString(@"CTMessageCenter");
         id mc = [CTMessageCenter sharedMessageCenter];
         id incMsg = [mc incomingMessageWithId: result];

         int msgType = (int)[incMsg messageType];

         if (msgType == 1) //experimentally detected number
         {
             id phonenumber = [incMsg sender];

             NSString *senderNumber = (NSString *)[phonenumber canonicalFormat];
             id incMsgPart = [[incMsg items] objectAtIndex:0];
             NSData *smsData = [incMsgPart data];
             NSString *smsText = [[NSString alloc] initWithData:smsData encoding:NSUTF8StringEncoding];
         }
         */
     }
     else if ([notifyname isEqualToString:@"kCTIndicatorsSignalStrengthNotification"])//信号
     {
         /*
         kCTIndicatorsGradedSignalStrength = 2;
         kCTIndicatorsRawSignalStrength = "-101";
         kCTIndicatorsSignalStrength = 19;
         */

     }
     else if ([notifyname isEqualToString:@"kCTRegistrationStatusChangedNotification"])//网络注册状态
     {
         /*
          kCTRegistrationInHomeCountry = 1;
          kCTRegistrationStatus = kCTRegistrationStatusRegisteredHome;
         */

     }
     else if ([notifyname isEqualToString:@"kCTRegistrationDataStatusChangedNotification"])
     {
         /*
          kCTRegistrationDataActive = 1;
          kCTRegistrationDataAttached = 1;
          kCTRegistrationDataConnectionServices =     (
          kCTDataConnectionServiceTypeInternet,
          kCTDataConnectionServiceTypeWirelessModemTraffic,
          kCTDataConnectionServiceTypeWirelessModemAuthentication
          );
          kCTRegistrationDataContextID = 0;
          kCTRegistrationDataIndicator = kCTRegistrationDataIndicator3G;
          kCTRegistrationDataStatus = kCTRegistrationDataStatusAttachedAndActive;
          kCTRegistrationDataStatusInternationalRoaming = 1;
          kCTRegistrationRadioAccessTechnology = kCTRegistrationRadioAccessTechnologyUTRAN;
         */
     }
     else if ([notifyname isEqualToString:@"kCTRegistrationCellChangedNotification"])
     {
         /*
          kCTRegistrationGsmCellId = 93204174;
          kCTRegistrationGsmLac = 55583;
          kCTRegistrationInHomeCountry = 1;
          kCTRegistrationRadioAccessTechnology = kCTRegistrationRadioAccessTechnologyUTRAN;
         */
     }
     else if ([notifyname isEqualToString:@"kCTIndicatorRadioTransmitNotification"])
     {
         /*
         kCTRadioTransmitDCHStatus = 1;
         */
     }
     //int unread=CTSMSMessageGetUnreadCount();
     //if (unread>0)
         //NSLog(@"未读短信:%d",unread);

     NSLog(@"名字:%@-详细:%@",notifyname,userInfo);


 }

 static void signalHandler(int sigraised)
 {
     printf("\nInterrupted.\n");
     exit(0);
 }
 "font-family:Arial, Verdana, sans-serif;">"white-space: normal;">

执行

 id ct = CTTelephonyCenterGetDefault();
     CTTelephonyCenterAddObserver(ct, NULL, callback, NULL, NULL, CFNotificationSuspensionBehaviorHold);
     // Handle Interrupts
     sig_t oldHandler = signal(SIGINT, signalHandler);
     if (oldHandler == SIG_ERR)
     {
         printf("Could not establish new signal handler");
         exit(1);
     }
     // Run loop lets me catch notifications
     printf("Starting run loop and watching for notification.\n");
     //CFRunLoopRun();

3.

/********private api********/

无庸置疑，以下的所有操作必须建立在已越狱的iPhone手机上。

首先，在建立工程之后我们要引入一个名为CoreTelephony.framework的框架，他是一个是一个有关电话、短信和邮件通讯的框架。

注：使用4.x的SDK的开发者可以清楚的看到这个框架中有关电话和运营商的各种类（/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.x.sdk/System/Library/Frameworks/CoreTelephony.framework），而其在3.x的SDK中是一个私有框架（/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.x.sdk/System/Library/PrivateFrameworks/CoreTelephony.framework），我们可以使用class-dump（目前最新版本为3.3.4）去dump去得到那些有关的类。

接着，我们要引入一些没有在文档中出现，但又确实存在的函数，由于我们的实现文件为.mm文件所以引入时最好使用extern "C"方式：

extern "C" CFNotificationCenterRef CTTelephonyCenterGetDefault(void); // 获得 TelephonyCenter (电话消息中心) 的引用
extern "C" void CTTelephonyCenterAddObserver(CFNotificationCenterRef center, const void *observer, CFNotificationCallback callBack, CFStringRef name, const void *object, CFNotificationSuspensionBehavior suspensionBehavior);
extern "C" void CTTelephonyCenterRemoveObserver(CFNotificationCenterRef center, const void *observer, CFStringRef name, const void *object);
extern "C" NSString *CTCallCopyAddress(void *, CTCall *call); //获得来电号码
extern "C" void CTCallDisconnect(CTCall *call); // 挂断电话
extern "C" void CTCallAnswer(CTCall *call); // 接电话
extern "C" void CTCallAddressBlocked(CTCall *call);
extern "C" int CTCallGetStatus(CTCall *call); // 获得电话状态　拨出电话时为３，有呼入电话时为４，挂断电话时为５
extern "C" int CTCallGetGetRowIDOfLastInsert(void); // 获得最近一条电话记录在电话记录数据库中的位置

以上这些方法都在CoreTelephony这个库中实现，这也是为什么我们要一开始就引入这个框架了。

第三步：我们就要是要在SpringBaord启动之后就将我们的回调函数注册到CTTelephonyCenter这个消息中心，注册我们就放在Hook到SpringBoard的applicationDidFinishLaunching:的那个函数中去：

CTTelephonyCenterAddObserver(CTTelephonyCenterGetDefault(), NULL, &callBack, CFSTR("kCTCallStatusChangeNotification"), NULL, CFNotificationSuspensionBehaviorHold);
　　
这里用到的CTTelephonyCenterAddObsever这个函数基本上与文档中给出的CFNotificationCenterAddObserver这个函数一样，所以我们可以参照后者对前者进行使用（经我测试用法基本相同）。

最后，就是对回调函数的实现:

static void callBack(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo) {

　　if ([(NSString *)name isEqualToString:@"kCTCallStatusChangeNotification"]) {

　　　　CTCall *call = (CTCall *)[(NSDictionary *)userInfo objectForKey:@"kCTCall"];

　　　　NSString *caller = CTCallCopyAddress(NULL, call); // caller 便是来电号码

　　　　CTCallDisconnect(call); //　挂断电话

　　　　CTCallAnswer(call); // 接电话

　　　　CTCallGetStatus(CTCall *call); // 获得电话状态　拨出电话时为３，有呼入电话时为４，挂断电话时为５

　　　　CTCallGetGetRowIDOfLastInsert(void); // 获得最近一条电话记录在电话记录数据库（call_history.db)中的位置(ROWID)

　　}

}

以上代码经测试可以使用：

测试机型：iPhone 3GS

系统版本：iOS 4.3.3

手机状态：已越狱

测试结果：Perfect！

http://www.cnblogs.com/OtionSky/archive/2011/11/10/iPhone_TelephoneCenter.html

1.私有api获取电话号码

需要CoreTelephony.framework

 extern NSString* CTSettingCopyMyPhoneNumber();


 +(NSString *) phoneNumber {
     NSString *phone = CTSettingCopyMyPhoneNumber();

     return phone;
 }