引入库

import UserNotifications

首先注册 注册方法 放置到这里

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {}

注册方法

    //MARK:  注册推送
    func registerNotifications(_ application: UIApplication) {
        //-- 注册推送
        if #available(iOS 10.0, *) {
            let center = UNUserNotificationCenter.current()
            center.delegate = self as UNUserNotificationCenterDelegate
            center.getNotificationSettings { (setting) in
                if setting.authorizationStatus == .notDetermined{
                    // 未注册
                    center.requestAuthorization(options: [.badge,.sound,.alert]) { (result, error) in
                        print("显示内容：\(result) error：\(String(describing: error))")
                        if(result){
                            if !(error != nil){
                                print("注册成功了！")
                                application.registerForRemoteNotifications()
                            }
                        } else{
                            print("用户不允许推送")
                        }
                    }
                } else if (setting.authorizationStatus == .denied){
                    //用户已经拒绝推送通知
                    //-- 弹出页面提示用户去显示
                    
                }else if (setting.authorizationStatus == .authorized){
                    //已注册 已授权 --注册同志获取 token
                    self.registerForRemoteNotifications()
                }else{
                    
                }
            }
        }
        
    }

    // 注册通知，获取deviceToken
    func registerForRemoteNotifications() {
        // 请求授权时异步进行的，这里需要在主线程进行通知的注册
        DispatchQueue.main.async {
            UIApplication.shared.registerForRemoteNotifications()
        }
    }

成功与失败的回调

    // 成功的回调
    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        //TODO: 注册远程通知, 将deviceToken传递过去
        let deviceStr = deviceToken.map { String(format: "%02hhx", $0) }.joined()
        
        print(deviceStr)
    }
    
    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        
    }
    
    //失败的回调
    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
        //TODO: 注册失败后的结果, 可以在这里记录失败结果, 以后再伺机弹框给用户打开通知
        
    }

delegate

extension AppDelegate:UNUserNotificationCenterDelegate{
    
    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
        
    }
    
    func userNotificationCenter(_ center: UNUserNotificationCenter, openSettingsFor notification: UNNotification?) {
        
    }
    
    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
        
    }
}

简单明了复制即可