如果联系人有超过 1 个电话号码，则显示详细的联系人卡片答案

【问题标题】：Display detailed contact card if contact has more than 1 phone number如果联系人有超过 1 个电话号码，则显示详细的联系人卡片
【发布时间】：2016-07-21 02:21:29
【问题描述】：

如果一个联系人只有 1 个电话号码，我想选择它。如果它有超过 1 个电话号码，那么我想显示详细的联系人卡片。

我正在使用以下方法，效果很好。

- (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker didSelectPerson:(ABRecordRef)person {

    if (person != nil) {
        ABMultiValueRef phoneNumbers = ABRecordCopyValue(person, kABPersonPhoneProperty);
        if (ABMultiValueGetCount(phoneNumbers) == 1) {
            //Do stuff to select phone number
        }
    }
}

然后，我实现了这个 Utility 方法来显示详细的联系人卡片：

- (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker didSelectPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier {

    NSString* phone = nil;
    ABMultiValueRef phoneNumbers = ABRecordCopyValue(person, kABPersonPhoneProperty);
    if (ABMultiValueGetCount(phoneNumbers) > 0) {
        CFIndex index = ABMultiValueGetIndexForIdentifier(phoneNumbers, identifier);
        phone = (__bridge_transfer NSString*)ABMultiValueCopyValueAtIndex(phoneNumbers, index);
    }
}

但是这个方法永远不会被调用？如果我注释掉第一种方法，则调用第二种方法。我如何同时调用两者，或者有其他方法可以实现吗？

【问题讨论】：

标签： ios xcode ios8 xcode8 abpeoplepickerview

【解决方案1】：

解决方案是在启动peoplePicker之前添加一个predicate，在这种情况下它将是：

-(void)getContacts {
    ABPeoplePickerNavigationController *peoplePicker = [[ABPeoplePickerNavigationController alloc] init];
    peoplePicker.peoplePickerDelegate = self;
    if ([peoplePicker respondsToSelector:@selector(setPredicateForSelectionOfPerson:)])
    {
        // The people picker will select a person that has exactly one phone number and call peoplePickerNavigationController:didSelectPerson:,
        // otherwise the people picker will present an ABPersonViewController for the user to pick one of the Phone Numbers.
        peoplePicker.predicateForSelectionOfPerson = [NSPredicate predicateWithFormat:@"phoneNumbers.@count = 1"];

    }
    [self presentViewController:peoplePicker animated:NO completion:nil];
}

类似地，对于 emailAdresses，将 @"phoneNumbers.@count = 1" 替换为 @"emailAddresses.@count = 1"。

【讨论】：