Open Radar

 
Summary:
IBAction methods for WKInterfaceButtons take this form:

@IBAction func buttonPressed() {

}

Without a “sender” parameter like UIButton gives, it’s hard to reuse a method for multiple buttons; instead, you need to write one method for each button.

Steps to Reproduce:
1. Create a WKInterfaceController in a storyboard for your WatchKit extension, with an accompanying WKInterfaceController subclass.
2. Add a WKInterfaceButton to the interface controller.
3. Control-drag from the button to the WKInterfaceController subclass’ code in the Assistant Editor.
4. Select “Action” from the pop-up.

Expected Results:
You can provide a “sender” parameter.

Actual Results:
You cannot provide a “sender” parameter.

Version:
Xcode 6.2 Beta 3

Notes:
Consider an interface controller with three buttons: A, B, and C. Each button has its own property, so right now you have to write this:

@IBAction func buttonAPressed() {
	buttonPressed(buttonA)
}

@IBAction func buttonBPressed() {
	buttonPressed(buttonB)
}

@IBAction func buttonCPressed() {
	buttonPressed(buttonC)
}

func buttonPressed(button: WKInterfaceButton) {
	if button == buttonA {
		// do something
	}
	else if button == buttonB {
		// do something
	}
	else if button == buttonC {
		// do something
	}
}

If we were able to send a “sender” parameter, we could do with just the last function in that code, linking it to each WKInterfaceButton.