ios - How do i pass information to a Uilabel in the second view controller in swift? -

i'm new swift , i'm trying learn different techniques.

the situation: have 2 view controllers. view controller number 1 consist of 4 buttons (north, south, east, west) example. lets click on north button. should take view controller number 2 , uilabel in view controller 2 should displaying name of whatever button pressed ("north" in case). know when you're passing information forward, should use "prepare segue" method there way 4 buttons? have optional string variable in view controller 2 should catch information being passed view controller 1. i've searched everywhere haven't gotten answer on this.

the code have in view controller 1:

@ibaction func north(sender: uibutton) {  } @ibaction func east(sender: uibutton) {  } @ibaction func west(sender: uibutton) {  } @ibaction func south(sender: uibutton) {  } 

the code have in view controller 2:

@iboutlet weak var label2: uilabel!  var updatethelabel: string? override func viewdidload() { super.viewdidload() label2.text = updatethelabel! } 

question: how perform segue 4 buttons go second view controller , update uilabel respectively?

to add @ahmad-farrag's solution

you can modify ib actions pick text button pressed

var buttontext = ""  @ibaction func north(sender: uibutton) {    buttontext = sender.currenttitle.text } @ibaction func east(sender: uibutton) {    buttontext = sender.currenttitle.text } @ibaction func west(sender: uibutton) {    buttontext = sender.currenttitle.text } @ibaction func south(sender: uibutton) {    buttontext = sender.currenttitle.text } 

this assign text buttons buttontext variable. in prepareforsegue let assume 2 view controllers connected segue identifier secondcontrollersegue.

override func prepareforsegue(segue: uistoryboardsegue, sender: anyobject?) {    if segue.identifier == "secondcontrollersegue" {       let controller = segue.destinationviewcontroller as! secondviewcontroller       controller.updatethelabel = buttontext    } } 

this send buttontext have captured earlier secondviewcontroller