在swift 3中获取推送数据

let notificationCenter = UNUserNotificationCenter.current()
notificationCenter.requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in
    if granted {
        DispatchQueue.main.async {
            UIApplication.shared.registerForRemoteNotifications()
        }
    }
}

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    // 将设备令牌发送给服务器，用于推送通知的目标设备
}

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    // 注册远程通知失败的处理逻辑
}

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {
    // 处理接收到的推送通知数据
}

if let customData = userInfo["customData"] as? String {
    // 处理自定义数据
}