我使用以下代码已有几年了,并且一直可以正常工作,但是在iOS 6中似乎不再可用了。如何获取iOS 6设备上所有联系人的列表?
ABAddressBookRef myAddressBook = ABAddressBookCreate();
NSMutableArray *people = (__bridge_transfer NSMutableArray *)ABAddressBookCopyArrayOfAllPeople(myAddressBook);
CFRelease(myAddressBook);
// repeat through all contacts in the inital array we loaded
for(int i=0; i<[people count]; i++)
{
NSString *aName;
NSString *firstName = (__bridge_transfer NSString *)ABRecordCopyValue((__bridge ABRecordRef)([people objectAtIndex:i]), kABPersonFirstNameProperty);
NSString *lastName = (__bridge_transfer NSString *)ABRecordCopyValue((__bridge ABRecordRef)([people objectAtIndex:i]), kABPersonLastNameProperty);
if (([firstName isEqualToString:@""] || [firstName isEqualToString:@"(null)"] || firstName == nil) &&
([lastName isEqualToString:@""] || [lastName isEqualToString:@"(null)"] || lastName == nil))
{
// do nothing
}
else
{
aName = [NSString stringWithFormat:@"%@ %@", firstName, lastName];
if ([firstName isEqualToString:@""] || [firstName isEqualToString:@"(null)"] || firstName == nil)
{
aName = [NSString stringWithFormat:@"%@", lastName];
}
if ([lastName isEqualToString:@""] || [lastName isEqualToString:@"(null)"] || lastName == nil)
{
aName = [NSString stringWithFormat:@"%@", firstName];
}
[self.tableItems addObject:aName];
}
}
[self.tableItems sortUsingSelector:@selector(compare:)];
最佳答案
在ios6中,您需要请求读取通讯簿的权限,否则将得到nil。使用这样的东西:
- (BOOL)askContactsPermission {
__block BOOL ret = NO;
if (ABAddressBookRequestAccessWithCompletion != NULL) { // we're on iOS6
dispatch_semaphore_t sema = dispatch_semaphore_create(0);
ABAddressBookRef addressBook = ABAddressBookCreate();
ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
ret = granted;
dispatch_semaphore_signal(sema);
});
if (addressBook) {
CFRelease(addressBook);
}
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
dispatch_release(sema);
}
else { // we're on iOS5 or older
ret = YES;
}
return ret;
}
如果此方法返回否,那么运气不好,您将无法访问AB。我在这里用信号灯锁定,因为如果用户不允许使用AB,我不想继续使用我的应用程序。还有其他方法,只需检查API。