ios – 如何使用CNContacts在swift中仅获取手机号码？

我有一些代码可以检索用户联系人中的所有电话号码,但只想过滤掉手机号码.目前,我只是通过向数组添加第一个数字“”或第二个数字“7”的数字来实现此目的,如下所示：

func findContacts () -> [CNContact]{
    let keysToFetch = [CNContactFormatter.descriptorForrequiredKeysForStyle(.FullName),CNContactPhonenumbersKey]
    let fetchrequest: CNContactFetchrequest = CNContactFetchrequest(keysToFetch: keysToFetch)
    var contacts = [CNContact]()
    CNContact.localizedStringForKey(CNLabelPhonenumberiPhonE)
    fetchrequest.mutabLeobjects = false
    fetchrequest.unifyResults = true
    fetchrequest.sortOrder = .UserDefault

    let contactStorEID = CNContactStore().defaultContainerIdentifier()

    do {

        try CNContactStore( ).enumerateContactsWithFetchrequest(fetchrequest) { (let contact,let stop) -> Void in
            if contact.phonenumbers.count > 0 {
                contacts.append(contact)
            }
            if (contact.isKeyAvailable(CNContactPhonenumbersKey)) {
                for phonenumber:CNLabeledValue in contact.phonenumbers {
                    let number = phonenumber.value as! CNPhonenumber
                    print(number.stringvalue)
                    let index = number.stringvalue.starTindex.advancedBy(1)
                    let indexPlus = number.stringvalue.starTindex.advancedBy(0)
                    if number.stringvalue[index] == Character(String(7)) || number.stringvalue[indexPlus] == Character("+"){
                        self.allnumbers.append("\(number.stringvalue)")
                    }
                }
            }
        }

由于联系人存储在带有“移动”标签的iPhone上,我想知道是否只能将这些数字添加到阵列中.谢谢 ：)

var mobiles = [CNPhonenumber]()

for num in contact.phonenumbers {
    let numVal = num.value as! CNPhonenumber
    if num.label == CNLabelPhonenumberMobile {
        mobiles.append(numVal)
    }
}