Get double variable when sent variable to next viewcontroller swift - swift

Question

I create global variable just after import statement:
var kontenid = ""
var judulkonten = ""
then I sent to FreeTiles view controller (other view controller) through tableview and prepareForSegue:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
//let cell = tableView.dequeueReusableCellWithIdentifier(reuseContentFreeIdentifier, forIndexPath: indexPath) as! FreeTableViewCell
var contentku = contents[indexPath.row] as ContentModel
kontenid = contentku.id
judulkonten = contentku.title
performSegueWithIdentifier("lemparkonten", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
if (segue.identifier == "lemparkonten") {
var svc = segue.destinationViewController as! FreeTiles;
svc.idcontent = kontenid
svc.namacontent = judulkonten
}
}
And on FreeTiles view controller, I put this inside class:
var idcontent :String!
var namacontent :String!
But when I println on FreeTiles view controller:
println("konten id nya:\(idcontent)")
println("judul nya:\(namacontent)")
I got two log of idcontent and two log of namacontent, the first is empty and the second filled with correct idcontent and namacontent.
How to avoid get two threw variable result when sent variable between two view controller? What is the correct code to get only one result for each threw variable?
Edited:
it seems like cache on xcode log because when I change println, it show only one log.
if idcontent.isEmpty && namacontent.isEmpty {
//println("Nothing to see here")
}else{
var content_id = idcontent
var content_name = namacontent
println("content_id:\(content_id)")
println("content_name:\(content_name)")
}
So, I make filter on FreeTiles (second view controller) to get the filled variable.
Regards.

Answer 1

First of all, if you are declaring global variables then you need to specify it's scope. Let's say:
public var kontenid = ""
public var judulkonten = ""
Further, once you have declared global variables you can access it from anywhere and it will also reflect when you will change the value.
So, after assigning values to the variables
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
//let cell = tableView.dequeueReusableCellWithIdentifier(reuseContentFreeIdentifier, forIndexPath: indexPath) as! FreeTableViewCell
var contentku = contents[indexPath.row] as ContentModel
kontenid = contentku.id
judulkonten = contentku.title
performSegueWithIdentifier("lemparkonten", sender: self)
}
In your prepareforsegue method, you don't need to assign the values:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
if (segue.identifier == "lemparkonten") {
var svc = segue.destinationViewController as! FreeTiles;
}
}
Now you can access the above global variables anywhere so you can directly use it in other class:
if idcontent.isEmpty && namacontent.isEmpty {
//println("Nothing to see here")
}else{
var content_id = kontenid
var content_name = judulkonten
println("content_id:\(content_id)")
println("content_name:\(content_name)")
}
}
Let me know, if you have any issues against this code.

Answer 2

You are printing your variables 2 times out with your code:
override func viewDidLoad() {
super.viewDidLoad()
println("konten id nya:(idcontent)") // first
println("judul nya:(namacontent)") // second
if idcontent.isEmpty && namacontent.isEmpty { //println("Nothing to see here")
} else {
var content_id = idcontent var content_name = namacontent
println("content_id: (content_id)") // 3
println("content_name:(content_name)") // 4
}}
Your Code seems doing well to send data through segues. Otherwise you could check my answer here:
Sending data with Segue with Swift