Sending array data from one view controller to another - swift

Question

I am trying to copy an array from one view controller to another view controller, but somehow it does not work.. I have tried using this code:
let otherVC = TerningspilletViewController()
mineSpillere = otherVC.mineSpillere2
println("otherVC")
In the view controller i want to send the data from has this code:
var mineSpillere = ["Spiller 1", "Spiller 2", "Spiller 3"]
The view controller that is going to received this data, has this code:
var mineSpillere2 = [String]()
the "var mineSpillere" is going to show the text, but when i try to show it, it says that the "var mineSpillere" is empty. Any suggestions/ideas?

Answer 1

If you want to access array of another viewController then you can save it in memory and for that you can use NSUserDefaults this way:
//save
var mineSpillere = ["Spiller 1", "Spiller 2", "Spiller 3"]
var defaults = NSUserDefaults.standardUserDefaults()
defaults.setObject(mineSpillere, forKey: "YourKey")
Now you can read it from anywhere this way:
//read
if let testArray : AnyObject? = NSUserDefaults.standardUserDefaults().objectForKey("YourKey") {
var readArray : [NSString] = testArray! as! [NSString]
println(readArray)
}
And if you want to do with your old way here is code:
FirstViewController.swift
import UIKit
class FirstViewController: UIViewController {
var mineSpillere = ["Spiller 1", "Spiller 2", "Spiller 3"]
override func viewDidLoad() {
super.viewDidLoad()
}
}
SecondViewController.swift
import UIKit
class SecondViewController: UIViewController {
var mineSpillere2 = [String]()
override func viewDidLoad() {
super.viewDidLoad()
let otherVC = FirstViewController()
mineSpillere2 = otherVC.mineSpillere
println(mineSpillere2) //[Spiller 1, Spiller 2, Spiller 3]
}
}

Answer 2

first checkout are you using story board
if you are using storyboard
let otherVc = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle()).instantiateViewControllerWithIdentifier("storyboardIdendifier") as? TerningspilletViewController
otherVC.mineSpillere2 = mineSpillere
println(otherVc)
otherwise do like this
let otherVC = TerningspilletViewController()
otherVC.mineSpillere2 = mineSpillere
println("otherVC")

Answer 3

if you are using storyboards, I suggest passing the data in prepareForSegue:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "TerningspilletViewSegue" {
let otherVc = segue.destinationViewController as! TerningspilletViewController
otherVc.mineSpillere = mineSpillere
}
}

Answer 4

Try this code working fine sending data from one viewController to another viewcontroller.just reference of storyboard id you can send data from one view to another view .Then we create that class object based on that object reference we can access that array and those class properties then just append it.
let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let secondView = storyBoard.instantiateViewController(withIdentifier: "tableView") as! TableViewController.
self.present(secondView, animated: true) {
let data = nameArray
secondView.models.append(data!)
secondView.tableView.reloadData()
}