SwiftでGoogleAnalyticsの設定とスクリーン名自動設定 ref: http://qiita.com/syou007/items/49fdc84be92acae19bb1

AppDelegate.swift

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool {
        // GoogleAnalytice
        GoogleAnalytics.setup()
    }

file2.swift

// スクリーン名
GoogleAnalytics.trackScreen("ScreenName")
// イベント
GoogleAnalytics.trackEvent(.User, action: .Show, label: "USER-ID")

GoogleAnalytics.swift

class GoogleAnalytics: NSObject {

    // トラッキングカテゴリー
    enum Category:String {
        case User = "User"
    }

    // トラッキングアクション
    enum Action:String {
        case Show = "Show"
        case Tap = "Tap"
    }

    // セットアップ
    class func setup() {
        GAI.sharedInstance().trackUncaughtExceptions = true;
        # ２分毎にgoogleへデータ送信
        GAI.sharedInstance().dispatchInterval = 120
        GAI.sharedInstance().logger.logLevel = .Warning //.Verbose
        GAI.sharedInstance().trackerWithTrackingId("UA-XXXX-XX")
    }

    // トラッキングスクリーン
    class func trackScreen(screenName: String) {
        let build = GAIDictionaryBuilder.createScreenView().set(screenName, forKey: kGAIScreenName).build() as [NSObject: AnyObject]
        GAI.sharedInstance().defaultTracker.send(build)
    }

    // トラックイベント
    class func trackEvent(category:Category, action:Action, label:String?, value:NSNumber = 1) {
        let build = GAIDictionaryBuilder.createEventWithCategory(category.rawValue, action: action.rawValue, label: label, value: value).build() as [NSObject: AnyObject]
        GAI.sharedInstance().defaultTracker.send(build)
    }
}

PodFile

pod 'GoogleAnalytics'

ScreenTracking.swift

extension UIViewController {
    public override class func initialize() {
        struct Static {
            static var token: dispatch_once_t = 0
        }

        // make sure this isn't a subclass
        if self !== UIViewController.self {
            return
        }

        dispatch_once(&Static.token) {
            let originalSelector = #selector(UIViewController.viewDidAppear(_:))
            let swizzledSelector = #selector(UIViewController.swiftalytics_viewDidAppear(_:))

            let originalMethod = class_getInstanceMethod(self, originalSelector)
            let swizzledMethod = class_getInstanceMethod(self, swizzledSelector)

            let didAddMethod = class_addMethod(self, originalSelector, method_getImplementation(swizzledMethod), method_getTypeEncoding(swizzledMethod))

            if didAddMethod {
                class_replaceMethod(self, swizzledSelector, method_getImplementation(originalMethod), method_getTypeEncoding(originalMethod))
            } else {
                method_exchangeImplementations(originalMethod, swizzledMethod)
            }
        }
    }

    func swiftalytics_viewDidAppear(animated: Bool) {
        swiftalytics_viewDidAppear(animated)
        // 除外するクラスを指定
        if !(self is UINavigationController) {
            // クラス名を取得
            var className = NSStringFromClass(self.dynamicType)
            GoogleAnalytics.trackScreen(className)
        }
    }
}