ios - Passing data between views in ONE ViewController in Swift -

all of searches i've done focus on passing data between view controllers. that's not i'm trying do. have viewcontroller has multiple views in it. viewcontroller has slider works fine:

var throttlesetting = float() @ibaction func changethrottlesetting(sender: uislider) {     throttlesetting = sender.value    } 

then, in 1 of views contained in same viewcontroller, have basic line (for now) sets initial value used later in drawrect portion of code:

var rpmpointerangle: cgfloat {     var angle: cgfloat = 2.0     return angle } 

what want have slider's value viewcontroller passed view contained in viewcontroller allow drawrect dynamic.

thanks help!

edit: sorry, when created answer having viewcontrollers in mind. easier way create method in someview , talk directly it.

example:

class mainviewcontroller: uiviewcontroller {      var view1: someview!     var view2: someview!      override func viewdidload() {         super.viewdidload()          // create views here         view1 = someview()         view2 = someview()          view.addsubview(view1)         view.addsubview(view2)     }      @ibaction func someaction(sender: uibutton) {         view1.changestring("blabla")     } }  class someview: uiview {      var somestring: string?      func changestring(sometext: string) {         somestring = sometext     } } 

delegate:

first create protocol:

protocol nameofdelegate: class {     // ": class" isn't mandatory, when want set delegate property weak     func somefunction()              // function has implemented in mainviewcontroller can access properties , other methods in there } 

in views have add:

class someview: uiview, nameofdelegate {      // code      func somefunction() {          // change slider settings     } } 

and last step, you'll have add property of delegate, can "talk" it. imagine property gate of sort, between 2 classes can talk each other.

class mainviewcontroller: uiviewcontroller {      weak var delegate: nameofdelegate?      @ibaction func button(sender: uibutton) {         if delegate != nil {             let somestring = delegate.somefunction()         }     } } 

i used button here show how use delegate. replace slider change properties of views

edit: 1 thing forgot mention is, you'll somehow need assign someview delegate. said, don't know how you're creating views etc can't that.