import Foundation
import Firebase

final class Analytics
{    
    //MARK: internal
    
    class func start()
    {
        FirebaseConfiguration.shared.setLoggerLevel(FirebaseLoggerLevel.max)
        FirebaseApp.configure()
    }
    
    class func setScreenView(controller:UIViewController)
    {
        let controllerType:UIViewController.Type = type(of:controller)
        let controllerName:String = String(describing:controllerType)
        Firebase.Analytics.setScreenName(controllerName, screenClass:controllerName)
    }
}

import Foundation
import Firebase

final class Analytics
{
    //MARK: internal
    
    class func start()
    {
        FirebaseConfiguration.shared.setLoggerLevel(FirebaseLoggerLevel.min)
        FirebaseApp.configure()
    }
}

--- 
+++ 
@@ -2,12 +2,19 @@
 import Firebase
 
 final class Analytics
-{
+{    
     //MARK: internal
     
     class func start()
     {
-        FirebaseConfiguration.shared.setLoggerLevel(FirebaseLoggerLevel.min)
+        FirebaseConfiguration.shared.setLoggerLevel(FirebaseLoggerLevel.max)
         FirebaseApp.configure()
     }
+    
+    class func setScreenView(controller:UIViewController)
+    {
+        let controllerType:UIViewController.Type = type(of:controller)
+        let controllerName:String = String(describing:controllerType)
+        Firebase.Analytics.setScreenName(controllerName, screenClass:controllerName)
+    }
 }
Add manual screen tracking for analytics
