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iOS Build a Simple iPhone App with Swift Views and View Controllers View Controllers and IBAction

Arjun Amin
Arjun Amin
2,228 Points
Posted by Arjun Amin
Arjun Amin
2,228 Points

In an IBAction what is 'Sender' and 'AnyObject'?

what do the sender refer to in our view or anywhere in the code?

1 Answer

Sebastien Thomas
Sebastien Thomas
16,502 Points
Sebastien Thomas
Sebastien Thomas
16,502 Points

Hi Arjun,

The sender is the object that called the action. So let's say if you have 2 UIButtons calling the same function buttonPressed. You can then use the sender parameter to find out, using tags, which button was pressed for example :

@IBAction func buttonPressed(sender: AnyObject) {

    let button = sender as UIButton
    println("Button \(button.tag) was pressed!")
}


Hope this helps
Arjun Amin
Arjun Amin
2,228 Points
Arjun Amin
Arjun Amin
2,228 Points

thanks sebastian