Get button pressed id on Swift via sender

Question

So I have a storyboard with 3 buttons I want to just create 1 action for all those 3 buttons and decide what to do based on their label/id...

Is there a way to get some kind of identifier for each button?

By the way they are images, so they don't have a title.

@IBAction func mainButton(sender: UIButton) {     println(sender) } 

Answer 1

You can set a tag in the storyboard for each of the buttons. Then you can identify them this way:

@IBAction func mainButton(sender: UIButton) {     println(sender.tag) } 

EDIT: For more readability you can define an enum with values that correspond to the selected tag. So if you set tags like 0, 1, 2 for your buttons, above your class declaration you can do something like this:

enum SelectedButtonTag: Int {     case First     case Second     case Third } 

And then instead of handling hardcoded values you will have:

@IBAction func mainButton(sender: UIButton) {     switch sender.tag {         case SelectedButtonTag.First.rawValue:             println("do something when first button is tapped")         case SelectedButtonTag.Second.rawValue:             println("do something when second button is tapped")         case SelectedButtonTag.Third.rawValue:                                    println("do something when third button is tapped")         default:             println("default")     } }