Using GA from base controller to automatically create screen views

analytics.swift

import Foundation
import Google

public struct Analytics {
    
    enum GAToken: String {
        case QAKey = "UPDATE-WITH-QA-KEY"
        case ProdKey = "UPDATE-WITH-PROD-KEY"
    }
    
    public static func createTracker(key: String) {
        GAI.sharedInstance().trackerWithTrackingId(key)
        GAI.sharedInstance().logger.logLevel = GAILogLevel.None
        GAI.sharedInstance().trackUncaughtExceptions = true
    }
    
    private func getTracker() -> GAITracker {
        return GAI.sharedInstance().defaultTracker
    }
    
    public func screenView(name: String) {
        let tracker = getTracker()
        tracker.set(kGAIScreenName, value: name)
        let builder = GAIDictionaryBuilder.createScreenView()
        tracker.send(builder.build() as [NSObject : AnyObject])
    }
}

BaseController.swift

import UIKit

class BaseViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        Analytics().screenView(self.controllerName)
    }
    
}

UIViewControllerExtension.swift

import UIKit

extension UIViewController {

    var controllerName: String {
        return NSStringFromClass(self.classForCoder).componentsSeparatedByString(".").last!
    }
    
}