Swift 获取联系人信息

如今很多开发者都开始尝试使用Swift进行开发,而且获取手机通讯录作为开发常见的需求
作为一个新的开发者,如果我们开发的应用需求不是特别高,只要求是iOS9以上,
那么恭喜你,基本上你写的很少,
你可以选择Contacts框架,这个框架是在iOS9才出来的@available(iOS 9.0, *)
直接上代码
首先在需要的类中

import Contacts

然后就可以使用这个框架了
首先lazy一个contactStore的对象

lazy var myContactStore: CNContactStore = {        let cn:CNContactStore = CNContactStore()        return cn    }()

首先是检测权限,如果没有授权就要申请权限,有权限则直接获取通讯录,没有权限可以选择弹窗是否需要重新开启权限

func checkContactStoreAuth(){        switch CNContactStore.authorizationStatus(for: .contacts) {        case .notDetermined:            print("未授权")            requestContactStoreAuthorization(myContactStore)        case .authorized:            print("已授权")            readContactsFromContactStore(myContactStore)        case .denied, .restricted:            print("无权限")        //可以选择弹窗到系统设置中去开启        default: break        }    }

请求权限

func requestContactStoreAuthorization(_ contactStore:CNContactStore) {        contactStore.requestAccess(for: .contacts, completionHandler: {[weak self] (granted, error) in            if granted {                print("已授权")                self?.readContactsFromContactStore(contactStore)            }        })    }

读取通讯录

func readContactsFromContactStore(_ contactStore:CNContactStore) {        guard CNContactStore.authorizationStatus(for: .contacts) == .authorized else {            return        }        let keys = [CNContactFamilyNameKey,CNContactGivenNameKey,CNContactPhoneNumbersKey]        let fetch = CNContactFetchRequest(keysToFetch: keys as [CNKeyDescriptor])        do {            try contactStore.enumerateContacts(with: fetch, usingBlock: { (contact, stop) in                //姓名                let name = "\(contact.familyName)\(contact.givenName)"                print(name)                //电话                for labeledValue in contact.phoneNumbers {                    let phoneNumber = (labeledValue.value as CNPhoneNumber).stringValue                    print(phoneNumber)                }            })        } catch let error as NSError {            print(error)        }    }

OK 以上就是iOS9以上的获取方式
对于iOS9以下的话就没有那么方便了
我们只能使用iOS早期的一个AddressBook框架了
一样的 首先import AddressBook
然后加载一个通讯录对象

private lazy var myAddressBook: ABAddressBook = {        var error:Unmanaged<CFError>?        let ab: ABAddressBook = ABAddressBookCreateWithOptions(nil, nil).takeRetainedValue()        return ab;    }()

注意这里之所以使用lazy加载,是因为调用ABAddressBookCreateWithOptions进行ABAddressBookCreateWithOptions的初始化需要设置为一个lazy变量，否则在用户拒绝授权的情况下，程序将会崩溃。因为ABAddressBookCreateWithOptions(nil, nil)得到的值为nil
所以这里一定要注意

之后也大致是同样的方式
检测权限

func checkAddressBookAuth() {        switch ABAddressBookGetAuthorizationStatus() {        case .notDetermined:            print("未授权")            requestAddressBookAuthorization(myAddressBook)        case .authorized:            print("已授权")            readContactsFromAddressBook(myAddressBook)        case .denied, .restricted:            print("无权限")            //可以选择弹窗到系统设置中去开启        }    }

申请权限

func requestAddressBookAuthorization(_ addressBook:ABAddressBook) {        ABAddressBookRequestAccessWithCompletion(addressBook, {[weak self] (granted, error) in            if granted {                print("已授权")                self?.readContactsFromAddressBook(addressBook)            }        })    }

读取通讯录

func readContactsFromAddressBook(_ addressBook:ABAddressBook) {        guard ABAddressBookGetAuthorizationStatus() == .authorized else {            return        }        let allContacts = ABAddressBookCopyArrayOfAllPeople(addressBook).takeRetainedValue() as Array        for record in allContacts {            let currentContact: ABRecord = record            let name = ABRecordCopyCompositeName(currentContact).takeRetainedValue() as String            print(name)            let currentContactPhones: ABMultiValue = ABRecordCopyValue(currentContact, kABPersonPhoneProperty).takeRetainedValue() as ABMultiValue            for i in 0..<ABMultiValueGetCount(currentContactPhones){                let phoneNumber = ABMultiValueCopyValueAtIndex(currentContactPhones, i).takeRetainedValue() as! String                print(phoneNumber)            }        }    }

至于如何判断采用哪一个框架

if #available(iOS 9.0, *) {                checkContactStoreAuth()        }else {                checkAddressBookAuth()        }

当然,你还要这样做

需要在info.plist中添加允许访问通讯录的权限,否则iOS10以上的系统也会导致崩溃

OK 至此,通讯录大家应该都能够获取到了

这是我的模拟器运行的结果

附上DEMO地址:https://github.com/spicyShrimp/XLXContact

欢迎阅读我刚刚开始的系列文章
系列:iOS开发-前言+大纲
http://blog.csdn.net/spicyShrimp/article/details/62218521