swift - Prepareforsegue data passing with multiple tableviewControllers in-between? -

okay found code youtube video data passed 1 viewcontroller , works fine but, need pass across multiple view controllers , not 1 other.

youtube video along project in desc:https://www.youtube.com/watch?v=kpwrc1prdsg

here code:

class viewcontroller: uiviewcontroller {  @iboutlet weak var textfield: uitextfield!  override func prepareforsegue(segue: uistoryboardsegue, sender: anyobject?) {     let nextvc: secondviewcontroller = segue.destinationviewcontroller as! secondviewcontroller      nextvc.recevedtext = textfield.text! } 

then secondviewcontroller code:

class secondviewcontroller: uiviewcontroller { var recevedtext: string = ""  @iboutlet weak var textlable: uilabel!  override func viewdidload() {     super.viewdidload()      textlable.text = recevedtext } 

i have heard of delegates before have difficulty them.

if need pass on value across multiple view controller, 1 possible way use global variables can updated , used in of view controller.

caution: global variables tedious , need keep track of updating , sequence of usage.