Google Analytics（分析）：Swift 2中的createScreenView和createItemWithTransactionId

Question

I'm trying to update my Google Analytics code, I have found subjects about but all are different, in some files it's gonna work and not in the others, I don't know if I implement it as well, the part of the code:

/*******************************
 * Tracker écran
 ********************************/

let tracker = GAI.sharedInstance().defaultTracker

tracker.set(kGAIDescription, value: "Demande Envoyé")

let eventTracker: NSObject = GAIDictionaryBuilder.createScreenView().build()

tracker.send(eventTracker as! [NSObject : AnyObject])

/*******************************
 * Tracker transaction
 ********************************/


var rangeName = ""

if let startRange = String(xml).rangeOfString("<Logement>"), endRange = String(xml).rangeOfString("</Logement>") where startRange.endIndex <= endRange.startIndex {
    rangeName = String(xml)[startRange.endIndex..<endRange.startIndex]
} else {
    print("invalid input")
}

tracker.send(NSObject = GAIDictionaryBuilder.createItemWithTransactionId(String(format: (NSUserDefaults.standardUserDefaults().objectForKey("ApplicationUniqueIdentifier")!) as! String + String(id)), name: rangeName, sku: "", category: Configuration.MyVariables.typeForm, price: 1, quantity: 1, currencyCode: "").build() as! [NSObject : AnyObject])

The screenView is working, but I it an error for the transaction:

Cannot assign to immutable expression of type 'NSObject.Type'

Answer 1

In your last line, you are trying to assign your newly created object to the NSObject class, hence the Cannot assign to immutable expression of type 'NSObject.Type' error.

You should create your transaction item the same way as the screen view so you should change your code to make it look like this:

let eventTracker2: NSObject = GAIDictionaryBuilder.createItemWithTransactionId(String(format: (NSUserDefaults.standardUserDefaults().objectForKey("ApplicationUniqueIdentifier")!) as! String + String(id)), name: rangeName, sku: "", category: Configuration.MyVariables.typeForm, price: 1, quantity: 1, currencyCode: "").build()

tracker.send(eventTracker2 as! [NSObject : AnyObject])