Simple IOS address book operation encapsulation (add a contact and check whether the number exists)

Sjabhelper. h

 # Import <Foundation/Foundation. h> Enum  {Abhelpercannotconncettoaddressbook,  /*  * <An error occurred while connecting to the address book (user permission is required to access the address book after ios6)  */  Abhelperexistspecificcontact,  /*  * <The number already exists.  */  Abhelpernotexistspecificcontact  /*  * <The number does not exist.  */ }; Typedef nsuinteger abhelpercheckexistresulttype;  @ Interface  Sjabhelper: nsobject  /*  ** Add contact ** @ Param Name contact name * @ Param num phone number * @ Param label Label label note ** @ return whether the contact is successfully added  */ + (Bool) addcontactname :( nsstring *) Name phonenum :( nsstring *) num withlabel :( nsstring * ) Label;  /*  ** Query whether the specified number already exists in the address book ** @ Param phonenum phone number ** @ return returns the query result. For details, see Enumeration type annotations.  */ + (Abhelpercheckexistresulttype) existphone :( nsstring *) Phonenum;  @ End 

 

Sjabhelper. m

You need to introduce the addressbook framework.

 # Import   "  Sjabhelper. h  "  # Import <Addressbook/addressbook. h> @ Implementation  Sjabhelper + (Sjabhelper * ) Parameter control {  Static Sjabhelper * Instance;  Static Dispatch_once_t oncetoken; dispatch_once ( & Oncetoken, ^ {Instance = [[Sjabhelper alloc] init] ;});  Return  Instance ;} -( ID  ) Init {self = [Super init];  If  (Self ){}  Return  Self ;} + (Bool) addcontactname :( nsstring *) Name phonenum :( nsstring *) num withlabel :( nsstring *) Label {  Return  [[Sjabhelper modify control] addcontactname: Name phonenum: num withlabel: Label];} -(Bool) addcontactname :( nsstring *) Name phonenum :( nsstring *) num withlabel :( nsstring * ) Label {abrecordref record = Abpersoncreate (); cferrorref error;  //  Use the _ bridge_retained keyword to convert the nsstring to the cfstring type and hand over the memory management right from the arc. Cfstringref cf_name = (_ Bridge_retained cftyperef) Name; cfstringref cf_num = (_ Bridge_retained cftyperef) num; cfstringref cf_label =(_ Bridge_retained cftyperef) label; abrecordsetvalue (record, kabpersonfirstnameproperty, cf_name, & Error); abmutablemultivalueref multi = Abmultivaluecreatemutable (kabpersonphoneproperty); abmultivalueaddvalueandlabel (multi, cf_num, cf_label, null); abrecordsetvalue (record, kabpersonphoneproperty, multi, & Error); cfrelease (Multi); abaddressbookref addressbook = Nil;  If ([[Uidevice currentdevice]. systemversion floatvalue]> = 6.0  ) {Addressbook =Abaddressbookcreatewitexceptions (null, null );  //  Execute the following command after your consent Dispatch_semaphore_t Sema = dispatch_semaphore_create ( 0  ); Abaddressbookrequestaccesswithcompletion (addressbook, ^ ( Bool  Granted, cferrorref error) {dispatch_semaphore_signal (SEMA) ;}); dispatch_semaphore_wait (Sema, dispatch_time_forever); dispatch_release (SEMA );}  Else {Addressbook = Abaddressbookcreate ();} bool success = Abaddressbookaddrecord (addressbook, record ,& Error );  If (! Success) {cfrelease (record); cfrelease (addressbook );  Return  No ;}  Else  {Success = Abaddressbooksave (addressbook ,& Error); cfrelease (record); cfrelease (addressbook );  Return Success? Yes: No ;}} + (Abhelpercheckexistresulttype) existphone :( nsstring * ) Phonenum {  Return  [[Sjabhelper internal control] existphone: phonenum];} -(Abhelpercheckexistresulttype) existphone :( nsstring * ) Phonenum {abaddressbookref addressbook = Nil;  If ([[Uidevice currentdevice]. systemversion floatvalue]> = 6.0  ) {Addressbook =Abaddressbookcreatewitexceptions (null, null );  //  Execute the following command after your consent Dispatch_semaphore_t Sema = dispatch_semaphore_create ( 0  ); Abaddressbookrequestaccesswithcompletion (addressbook, ^ ( Bool  Granted, cferrorref error) {dispatch_semaphore_signal (SEMA) ;}); dispatch_semaphore_wait (Sema, dispatch_time_forever); dispatch_release (SEMA );}  Else {Addressbook = Abaddressbookcreate ();} cfarrayref records;  If  (Addressbook) {records = Abaddressbookcopyarrayofallpeople (addressbook );}  Else  {  # Ifdef  Debug nslog (  @"  Can not connect to address book  "  );  # Endif         Return  Abhelpercannotconncettoaddressbook ;}  For ( Int I = 0 ; I <cfarraygetcount (records); I ++ ) {Abrecordref record = Cfarraygetvalueatindex (records, I); cftyperef items = Abrecordcopyvalue (record, kabpersonphoneproperty); cfarrayref phonenums = Abmultivaluecopyarrayofallvalues (items );  If  (Phonenums ){ For ( Int J = 0 ; J <cfarraygetcount (phonenums); j ++ ) {Cfstringref cf_phone = Cfarraygetvalueatindex (phonenums, J); nsstring * Phone = (_ bridge nsstring * ) Cf_phone;  If  ([Phonenum isw.tostring: Phone]) {cfrelease (phonenums); cfrelease (items); cfrelease (records); cfrelease (addressbook );  Return Abhelperexistspecificcontact;} cfrelease (phonenums);} cfrelease (items);} cfrelease (records); cfrelease (addressbook );  Return  Abhelpernotexistspecificcontact ;}  @ End 

 

Note:IsNew user privacy protection in ios6Make the callAbaddressbookcreate ()Alert will pop up to allow the user to confirm whether or not to allow, need to addCode:

 //  For systems above iOS 6, you need to wait for the user to confirm whether to allow access to the address book.      If ([[Uidevice currentdevice]. systemversion floatvalue]> =6.0  ) {Addressbook = Abaddressbookcreatewitexceptions (null, null );  //  Execute the following command after your consent Dispatch_semaphore_t Sema = dispatch_semaphore_create ( 0  ); Abaddressbookrequestaccesswithcompletion (addressbook, ^ ( Bool Granted, cferrorref error) {dispatch_semaphore_signal (SEMA) ;}); dispatch_semaphore_wait (Sema, dispatch_time_forever); dispatch_release (SEMA );} 

Otherwise, the addressbook is null before the user confirms the operation.ProgramCrash.