iOS私有API的了解

iOS的API分为四种：

PublishedAPI(公开的API)（或者Documented API）

还有两类：私有API：PrivateAPI和未公开API：UnPublished API(或者UndocumentedAPI)。

私有API是指放在PrivateFrameworks框架中的API，未公开的API是指虽然放在Frameworks框架中，但是却没有在苹果的官方文档中有使用说明、代码介绍等记录的API。

按苹果的说法，未公开的API是还不够成熟，可能还会变动的API，等完全成型了后会变成公开的API，但是目前不对其提供承诺，就是系统版本升级后可能会失效。而私有API是苹果明确不能使用的API。虽然两者有所区别，但是在具体使用方法上是类似的。

私有API会面临审核通不过然后不能上线，但是也有使用私有API通过审核的比如谷歌的“GoogleVoice”，所以具体审核的详情不得而知。

 

示例一：

使用私有API——CoreTelephony获取本机号码

步骤如下：
1）导入CoreTelephony这个private framework
2）在xxx.m中加入红字部分：

 #import "xxx.h"

 extern NSString*CTSettingCopyMyPhoneNumber();


 @implementation
 +(NSString *)myNumber{
 "white-space:pre">    return CTSettingCopyMyPhoneNumber();
 }
 @end

3）在其它地方调用NSLog(@"myNumber=%@",[xxxmyNumber]);即是本机号码

另外机子的唯一标识码等一些信息可以用[UIDevice currentDevice]的uniqueIdentifier,name等属性来获取

 

其他资料：

callblocking on iPhone4

 //using private API
 //CoreTelephony framework is needed
 extern NSString* const kCTSMSMessageReceivedNotification;
 extern NSString* constkCTSMSMessageReplaceReceivedNotification;
 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(voidvoid *, CTSMSMessage *);
 NSString *CTSMSMessageCopyText(voidvoid *, CTSMSMessage *);
 int CTSMSMessageGetRecordIdentifier(voidvoid * msg);
 NSString * CTSIMSupportGetSIMStatus();
 NSString * CTSIMSupportCopyMobileSubscriberIdentity();
 id CTSMSMessageCreate(void* unknow,NSString* number,NSString*text);
 voidvoid * CTSMSMessageCreateReply(void* unknow,voidvoid *forwardTo,NSString* text);
 id CTTelephonyCenterGetDefault(void);
 voidCTTelephonyCenterAddObserver(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 voidvoid *object, CFDictionaryRefuserInfo)
 {
 NSString *notifyname=(NSString *)name;
 if ([notifynameisEqualToString:@"kCTCallStatusChangeNotification"])//phonecall
 {
 NSDictionary *info = (NSDictionary*)userInfo;
 NSString *state=[[info objectForKey:@"kCTCallStatus"]stringValue];
 if ([state isEqualToString:@"5"])//disconnect
 NSLog(@”unanswered:%@”,state);
 }
 else if ([notifynameisEqualToString:@"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);
 }
 else if ([notifynameisEqualToString:@"kCTRegistrationDataStatusChangedNotification"])
 {
 }
 else if ([notifynameisEqualToString:@"kCTSMSMessageReceivedNotification"])
 {//api expired
 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 ([notifynameisEqualToString:@"kCTMessageReceivedNotification"])//receivedSMS
 {
 NSDictionary *info = (NSDictionary *)userInfo;
 CFNumberRef msgID = (CFNumberRef)[infoobjectForKey:@"kCTMessageIdKey"];
 int result;
 CFNumberGetValue((CFNumberRef)msgID, kCFNumberSInt32Type,&result);

 }
 else if ([notifynameisEqualToString:@"kCTIndicatorsSignalStrengthNotification"])//signal
 {
 }
 else if ([notifynameisEqualToString:@"kCTRegistrationStatusChangedNotification"])//networkregistration status
 {
 }
 else if ([notifynameisEqualToString:@"kCTRegistrationDataStatusChangedNotification"])
 {

 }
 else if ([notifynameisEqualToString:@"kCTRegistrationCellChangedNotification"])
 {

 }
 else if ([notifynameisEqualToString:@"kCTIndicatorRadioTransmitNotification"])
 {

 }
 //int unread=CTSMSMessageGetUnreadCount();
 //if (unread>0)
 //NSLog(@”unread SMS:%d”,unread);
 NSLog(@”name:%@-detail:%@”,notifyname,userInfo);
 }
 static void signalHandler(int sigraised)
 {
 printf(“\nInterrupted.\n”);
 exit(0);
 }
 //—————–
 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();