[AdMob] 내가 만든 앱에 배너광고 넣기

https://firebase.google.com/docs/admob/ios/quick-start

 * Podfile

source 'https://github.com/CocoaPods/Specs.git' platform :ios, '9.0'     use_frameworks!     pod 'Firebase/Core'     pod 'Firebase/AdMob' target 'Demo' do     pod 'Firebase' end

 $ pod install

 * AppDelegate.swift

import Firebase import UIKit @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate {     var window: UIWindow?     func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {         // Override point for customization after application launch.                  FIRApp.configure()         GADMobileAds.configureWithApplicationID("ca-app-pub-3940256099942544/2934735716")         return true     }

 * ViewController.swift

import GoogleMobileAds class ViewController: UIViewController {          @IBOutlet weak var bannerView: GADBannerView! override func viewDidLoad() {         super.viewDidLoad()         //print("Google Mobile Ads SDK version: \(GADRequest.sdkVersion())")         bannerView.adUnitID = "ca-app-pub-3940256099942544/2934735716"         bannerView.rootViewController = self         bannerView.loadRequest(GADRequest())         // Do any additional setup after loading the view, typically from a nib.     } }