iOS 检测手机是否安装SIM卡

[CTSIMSupportGetSIMStatus() isEqualToString:kCTSIMSupportSIMStatusNotInserted]

可以判断是否插入了sim卡。

需要CoreTelephony.framework。

/**
 *  检测是否有SIM卡
 * [CTSIMSupportGetSIMStatus() isEqualToString:kCTSIMSupportSIMStatusNotInserted]
 */
extern NSString* const kCTSMSMessageReceivedNotification;
extern NSString* const kCTSMSMessageReplaceReceivedNotification;
extern NSString* const kCTSIMSupportSIMStatusNotInserted;   // 为插入SIM卡
extern NSString* const kCTSIMSupportSIMStatusReady;         // 已插入SIM卡

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

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);

void* CTSMSMessageSend(id server,id msg);

NSString *CTSMSMessageCopyAddress(void *, void *);
NSString *CTSMSMessageCopyText(void *, void *);

原文：http://blog.csdn.net/lihongli528628/article/details/46515365