“二进制运算符'<‘不能应用于两个CFIndex操作数”--从ABMultiValue (地址簿)中选择一个电话号码

Question

我试图使用AddressBook和AddressBookUI来显示地址簿的视图，用户可以点击联系人，然后点击电话号码，然后应用程序接收电话号码。当我遍历ABMultiValue以查找带有所选标识符的条目时，我遇到了一个问题--在使用for循环(第13行)的行中会出现"Binary operator '<' cannot be applied to two CFIndex operands“错误。

我已经粘贴了下面的代码--有人知道为什么会发生这种情况吗?我能做些什么来修复它呢？谢谢!

func peoplePickerNavigationController(peoplePicker: ABPeoplePickerNavigationController!, didSelectPerson person: ABRecord!, property: ABPropertyID, identifier: ABMultiValueIdentifier) {
    self.peoplePickerNavigationController(peoplePicker, shouldContinueAfterSelectingPerson: person, property: property, identifier: identifier)

    // Get name
    //    If wanting a composite name including prefix, suxif, title, both names etc:
    //    NSString *contactName = CFBridgingRelease(ABRecordCopyCompositeName(person));
    let contactName = ABRecordCopyValue(person, kABPersonFirstNameProperty)

    // Get number
    var number = String()
    let numbers = ABRecordCopyValue(person, kABPersonPhoneProperty)

    for var index:CFIndex = 0; index < ABMultiValueGetCount(numbers); ++index{
        if identifier = ABMultiValueGetIdentifierAtIndex(numbers, index) {
            number = ABMultiValueCopyValueAtIndex(numbers, index)
        }
    }
}

Answer 1

只需循环使用正常数字：

for index in 0 ..< ABMultiValueGetCount(numbers) {