CNContact
是苹果提供的用于处理联系人信息的框架,它允许开发者在 iOS 和 macOS 应用中读取、创建和修改用户的联系人信息。CNContact
提供了一个抽象的接口来处理联系人数据,包括姓名、电话号码、电子邮件地址、照片等。
当使用 CNContact
保存联系人时,如果不发送联系人图像,可能是因为以下几个原因:
首先,确保你的应用已经获得了访问用户相册的权限。你可以在 Info.plist
文件中添加以下键值对:
<key>NSPhotoLibraryUsageDescription</key>
<string>我们需要访问您的相册以获取联系人照片</string>
然后在代码中请求权限:
import Photos
func requestPhotoLibraryPermission() {
PHPhotoLibrary.requestAuthorization { status in
switch status {
case .authorized:
print("已授权访问相册")
case .denied, .restricted, .notDetermined:
print("未授权访问相册")
@unknown default:
fatalError()
}
}
}
当用户在添加或编辑联系人时,确保你处理了用户选择的图像。你可以使用 UIImagePickerController
来让用户选择照片:
import UIKit
class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
@IBOutlet weak var imageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
}
@IBAction func selectPhoto(_ sender: UIButton) {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
imagePickerController.sourceType = .photoLibrary
present(imagePickerController, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if let selectedImage = info[UIImagePickerController.InfoKey.originalImage] as? UIImage {
imageView.image = selectedImage
}
dismiss(animated: true, completion: nil)
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
}
在保存联系人时,确保你包含了处理图像的逻辑。以下是一个示例代码:
import Contacts
func saveContact(withName name: String, phoneNumber: String, email: String, image: UIImage?) {
let contactStore = CNContactStore()
let contact = CNMutableContact()
contact.givenName = name
contact.phoneNumbers = [CNLabeledValue(label: CNLabelPhoneNumberMobile, value: CNPhoneNumber(stringValue: phoneNumber))]
contact.emailAddresses = [CNLabeledValue(label: CNLabelWork, value: email as NSString)]
if let image = image {
let data = image.jpegData(compressionQuality: 1.0)
contact.image = data
}
let saveRequest = CNSaveRequest()
saveRequest.add(contact, toContainerWithIdentifier: nil)
do {
try contactStore.execute(saveRequest)
print("联系人保存成功")
} catch {
print("保存联系人时出错: \(error)")
}
}
通过以上步骤,你应该能够解决在使用 CNContact
保存联系人时不发送联系人图像的问题。
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