iPhoneiPad 唯一标识符除了 UUIDUDID 之外

在iPhone和iPad设备上，除了UUID（Universally Unique Identifier）和UDID（Unique Device Identifier）之外，还有其他用于标识设备的方法。这些方法可以帮助开发者追踪和识别用户设备，以提供个性化的服务和功能。以下是几种常用的标识符方法：

swift
import AdSupport
func getAdvertisingIdentifier() -> String? {
    let identifierManager = ASIdentifierManager.shared()
    if identifierManager.isAdvertisingTrackingEnabled {
        return identifierManager.advertisingIdentifier.uuidString
    }
    return nil
}

swift
import UIKit
func getVendorIdentifier() -> String? {
    if let vendorIdentifier = UIDevice.current.identifierForVendor?.uuidString {
        return vendorIdentifier
    }
    return nil
}

swift
import Security
func saveDeviceIdentifierToKeychain(identifier: String) -> Bool {
    let query: [String: Any] = [
        kSecClass as String: kSecClassGenericPassword,
        kSecAttrAccount as String: "DeviceIdentifier",
        kSecValueData as String: identifier.data(using: .utf8)!
    ]
    let status = SecItemAdd(query as CFDictionary, nil)
    return status == errSecSuccess
}
func getDeviceIdentifierFromKeychain() -> String? {
    let query: [String: Any] = [
        kSecClass as String: kSecClassGenericPassword,
        kSecAttrAccount as String: "DeviceIdentifier",
        kSecReturnData as String: kCFBooleanTrue!,
        kSecMatchLimit as String: kSecMatchLimitOne
    ]
    var result: AnyObject?
    let status = SecItemCopyMatching(query as CFDictionary, &result)
    if status == errSecSuccess, let data = result as? Data, let identifier = String(data: data, encoding: .utf8) {
        return identifier
    }
    return nil
}

swift
import UIKit
func registerForRemoteNotifications() {
    let application = UIApplication.shared
    application.registerForRemoteNotifications()
}
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    let tokenString = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
    print("Push token: \(tokenString)")
}