Twilio IOS sdk支持推送通知

# Podfile
platform :ios, '10.0'
use_frameworks!

target 'YourApp' do
  pod 'TwilioVoice', '~> 6.3'
end

import UIKit
import TwilioVoice
import UserNotifications

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Request permission to show notifications
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in
            if granted {
                DispatchQueue.main.async {
                    application.registerForRemoteNotifications()
                }
            }
        }
        UNUserNotificationCenter.current().delegate = self
        return true
    }

    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        let deviceTokenString = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
        print("Device Token: \(deviceTokenString)")

        // Register the device token with Twilio
        TwilioVoice.register(withAccessToken: "YOUR_TWILIO_ACCESS_TOKEN", deviceToken: deviceTokenString) { error in
            if let error = error {
                print("Error registering for Twilio Voice: \(error.localizedDescription)")
            } else {
                print("Successfully registered for Twilio Voice")
            }
        }
    }

    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
        print("Failed to register for remote notifications: \(error.localizedDescription)")
    }

    // Handle incoming push notifications
    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        TwilioVoice.handleNotification(userInfo) { error in
            if let error = error {
                print("Error handling Twilio Voice notification: \(error.localizedDescription)")
            } else {
                print("Successfully handled Twilio Voice notification")
            }
        }
        completionHandler(.newData)
    }

    // Handle notification presentation while app is in foreground
    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
        completionHandler([.alert, .sound])
    }
}

import UIKit
import TwilioVoice

class ViewController: UIViewController, TVOCallDelegate {

    var call: TVOCall?

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    func handleIncomingCallInvite(_ callInvite: TVOCallInvite) {
        // Handle the incoming call invite
        call = callInvite.accept(with: self)
    }

    // TVOCallDelegate methods
    func callDidConnect(_ call: TVOCall) {
        print("Call connected")
    }

    func callDidDisconnect(_ call: TVOCall) {
        print("Call disconnected")
        self.call = nil
    }

    func call(_ call: TVOCall, didFailToConnectWithError error: Error) {
        print("Failed to connect call: \(error.localizedDescription)")
        self.call = nil
    }
}