我有一个返回电话号码格式的 API:+1415xxxxxxx (E164)

现在这些数字被放入 UITableView 的单元格中并按预期显示，但是我希望能够搜索手机上的用户联系人以查看是否存在匹配项 - 如果匹配也通过返回名字、姓氏和已知照片。

查看 Apple 页面 ( https://developer.apple.com/library/watchos/documentation/Contacts/Reference/Contacts_Framework/index.html ) 我需要

 import ContactsUI

但是我不确定，我是否将 contactDB 加载到字典中然后进行搜索？我可以通过名称搜索找到很多东西，而通过数字搜索则更少:

  let predicate = CNContact.predicateForContactsMatchingName("Sam") 

我试图获得一个我可以调用的函数，该函数使用 PhoneNumber 进行搜索并返回 FirstName、FamilyName 和 Image。

  func searchForContactUsingNumber(PhoneNumber: String)
 {

 // Search Via phoneNumber
  let store = CNContactStore()
  let contacts = try store.unifiedContactsMatchingPredicate(CNContact.predicateForContactsMatchingPhoneNumber(PhoneNumber), keysToFetch:[CNContactGivenNameKey, CNContactFamilyNameKey,CNContactImageData])

  return FirstName, GivenName,UIImage

 }

我觉得我正在倒退，但不确定前进的方向。有什么想法吗？

最佳答案

为了快速启动并运行此示例，我使用了以下信息来源:

Filter non-digits from string

https://stackoverflow.com/a/32700339/558933

http://www.appcoda.com/ios-contacts-framework/

下面的代码块包括授权检查，因为我必须让它工作才能在模拟器中进行测试。代码只是单 View 应用程序 View Controller ，您可以将 Storyboard 中的 UIButton 连接到 findContactInfoForPhoneNumber: 方法以获取是否运行。输出到控制台 - 您需要将这些 print 语句替换为其他内容。

如果您对完整的 View Controller 代码不感兴趣，那么只需查看 searchForContactUsingPhoneNumber(phoneNumber: String) 方法。我已按照 Apple 在文档中的建议异步运行 CNContact 框架。

该代码去除了电话号码中可能出现的所有 +、- 和 ( 符号，仅匹配数字，因此电话您传入的数字必须完全相同。

//
//  ViewController.swift
//  ContactsTest
//
//  Created by Robotic Cat on 13/04/2016.
//

import UIKit
import Contacts

class ViewController: UIViewController {

    // MARK: - App Logic
    func showMessage(message: String) {
        // Create an Alert
        let alertController = UIAlertController(title: "Alert", message: message, preferredStyle: UIAlertControllerStyle.Alert)

        // Add an OK button to dismiss
        let dismissAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default) { (action) -> Void in
        }
        alertController.addAction(dismissAction)

        // Show the Alert
        self.presentViewController(alertController, animated: true, completion: nil)
    }

    func requestForAccess(completionHandler: (accessGranted: Bool) -> Void) {
        // Get authorization
        let authorizationStatus = CNContactStore.authorizationStatusForEntityType(CNEntityType.Contacts)

        // Find out what access level we have currently
        switch authorizationStatus {
        case .Authorized:
            completionHandler(accessGranted: true)

        case .Denied, .NotDetermined:
            CNContactStore().requestAccessForEntityType(CNEntityType.Contacts, completionHandler: { (access, accessError) -> Void in
                if access {
                    completionHandler(accessGranted: access)
                }
                else {
                    if authorizationStatus == CNAuthorizationStatus.Denied {
                        dispatch_async(dispatch_get_main_queue(), { () -> Void in
                            let message = "\(accessError!.localizedDescription)\n\nPlease allow the app to access your contacts through the Settings."
                            self.showMessage(message)
                        })
                    }
                }
            })

        default:
            completionHandler(accessGranted: false)
        }
    }

    @IBAction func findContactInfoForPhoneNumber(sender: UIButton) {

        self.searchForContactUsingPhoneNumber("(888)555-1212)")
    }

    func searchForContactUsingPhoneNumber(phoneNumber: String) {

        dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INTERACTIVE, 0), { () -> Void in
            self.requestForAccess { (accessGranted) -> Void in
                if accessGranted {
                    let keys = [CNContactGivenNameKey, CNContactFamilyNameKey, CNContactImageDataKey, CNContactPhoneNumbersKey]
                    var contacts = [CNContact]()
                    var message: String!

                    let contactsStore = CNContactStore()
                    do {
                        try contactsStore.enumerateContactsWithFetchRequest(CNContactFetchRequest(keysToFetch: keys)) {
                            (contact, cursor) -> Void in
                            if (!contact.phoneNumbers.isEmpty) {
                                let phoneNumberToCompareAgainst = phoneNumber.componentsSeparatedByCharactersInSet(NSCharacterSet.decimalDigitCharacterSet().invertedSet).joinWithSeparator("")
                                for phoneNumber in contact.phoneNumbers {
                                    if let phoneNumberStruct = phoneNumber.value as? CNPhoneNumber {
                                        let phoneNumberString = phoneNumberStruct.stringValue
                                        let phoneNumberToCompare = phoneNumberString.componentsSeparatedByCharactersInSet(NSCharacterSet.decimalDigitCharacterSet().invertedSet).joinWithSeparator("")
                                        if phoneNumberToCompare == phoneNumberToCompareAgainst {
                                            contacts.append(contact)
                                        }
                                    }
                                }
                            }
                        }

                        if contacts.count == 0 {
                            message = "No contacts were found matching the given phone number."
                        }
                    }
                    catch {
                        message = "Unable to fetch contacts."
                    }

                    if message != nil {
                        dispatch_async(dispatch_get_main_queue(), { () -> Void in
                            self.showMessage(message)
                        })
                    }
                    else {
                        // Success
                        dispatch_async(dispatch_get_main_queue(), { () -> Void in
                            // Do someting with the contacts in the main queue, for example
                            /*
                             self.delegate.didFetchContacts(contacts) <= which extracts the required info and puts it in a tableview
                             */
                            print(contacts) // Will print all contact info for each contact (multiple line is, for example, there are multiple phone numbers or email addresses)
                            let contact = contacts[0] // For just the first contact (if two contacts had the same phone number)
                            print(contact.givenName) // Print the "first" name
                            print(contact.familyName) // Print the "last" name
                            if contact.isKeyAvailable(CNContactImageDataKey) {
                                if let contactImageData = contact.imageData {
                                    print(UIImage(data: contactImageData)) // Print the image set on the contact
                                }
                            } else {
                                // No Image available

                            }
                        })
                    }
                }
            }
        })
    }

}

关于ios - Swift 使用联系人框架，使用电话号码搜索以获取姓名和用户图像，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36582670/