ABAddressBookRegisterExternalChangeCallback可以工作,但数据是陈旧的

Question

我的应用程序注册了一次回调:

notificationAddressBook = ABAddressBookCreate();

ABAddressBookRegisterExternalChangeCallback(notificationAddressBook, MyAddressBookExternalChangeCallback, self);

然后在我的回调中:

void MyAddressBookExternalChangeCallback (ABAddressBookRef notifyAddressBook,CFDictionaryRef info,void *context)
{
     NSLog(@"in MyAddressBook External Change Callback");

     ABAddressBookRevert(notifyAddressBook);         

     CFArrayRef peopleRefs = ABAddressBookCopyArrayOfAllPeopleInSource(notifyAddressBook, kABSourceTypeLocal);

     CFIndex count = CFArrayGetCount(peopleRefs);
     NSMutableArray* people = [NSMutableArray arrayWithCapacity:count];
     for (CFIndex i=0; i < count; i++) {
        ABRecordRef ref = CFArrayGetValueAtIndex(peopleRefs, i);
        ABRecordID id_ = ABRecordGetRecordID(ref);
        TiContactsPerson* person = [[[TiContactsPerson alloc] _initWithPageContext:[context executionContext] recordId:id_ module:context] autorelease];
        NSLog(@"name: %@", [person valueForKey:@"firstName"]);
        NSLog(@"phone: %@", [person valueForKey:@"phone"]);
        NSLog(@"modified: %@", [person valueForKey:@"modified"]);
        [people addObject:person];
     } 

     CFRelease(peopleRefs);
}

添加新联系人时,事件被触发正常,并且数据在第一次添加和第二次和第三次添加时是最新的.问题在于编辑现有联系人的详细信息.

第一次触发事件时,数据对上次更新是正确的(我更改了iPhone联系人中一个联系人的电话号码),然后切换到应用程序并获取最新更新.然后我切换回地址簿,进行另一次更改,切换到我的应用程序并获得另一个事件.这次数据陈旧,最新的变化没有反映出来.

我尝试释放ABAddressBookRef实例并ABAddressBookCreate()再次调用,但它也没有帮助.

有任何想法吗？

Answer 1

尝试重新创建 ABAddressBookRef。

    void MyAddressBookExternalChangeCallback (ABAddressBookRef notifyAddressBook,CFDictionaryRef info,void *context)
    {
         NSLog(@"in MyAddressBook External Change Callback");

         //ABAddressBookRevert(notifyAddressBook);
         notifyAddressBook = ABAddressBookCreate();

         CFArrayRef peopleRefs = ABAddressBookCopyArrayOfAllPeopleInSource(notifyAddressBook, kABSourceTypeLocal);

         CFIndex count = CFArrayGetCount(peopleRefs);
         NSMutableArray* people = [NSMutableArray arrayWithCapacity:count];
         for (CFIndex i=0; i < count; i++) {
            ABRecordRef ref = CFArrayGetValueAtIndex(peopleRefs, i);
            ABRecordID id_ = ABRecordGetRecordID(ref);
            TiContactsPerson* person = [[[TiContactsPerson alloc] _initWithPageContext:[context executionContext] recordId:id_ module:context] autorelease];
            NSLog(@"name: %@", [person valueForKey:@"firstName"]);
            NSLog(@"phone: %@", [person valueForKey:@"phone"]);
            NSLog(@"modified: %@", [person valueForKey:@"modified"]);
            [people addObject:person];
         } 

         CFRelease(peopleRefs);    
    }