Is there a way to check if 2 UIButtons were clicked? - ios

Question

I have 2 groups of UIButtons with Pass or Fail. I need to check if in both groups was clicked any of the UIButtons (Pass or Fail) to scroll down to next question.
I'm using a delegate with 4 parameters (my 4 buttons) and I'm doing a if check, but is never entering in my if condition. Here's how my group of buttons looks:
Here is my code:
func tappedOnVehicleOrTrailerButtons(vehiclePassBtn: UIButton, vehicleFailBtn: UIButton, trailerPassBtn: UIButton, trailerFailBtn: UIButton) {
if (vehiclePassBtn.isTouchInside || vehicleFailBtn.isTouchInside) && (trailerPassBtn.isTouchInside || trailerFailBtn.isTouchInside) {
scrollDown()
}
}
Here is the delegate method:
// Check if the user press Pass or Fail btn for Vehicle or Trailer
#IBAction func passOrFailBtnTapped(_ sender: UIButton) {
delegate?.tappedOnVehicleOrTrailerButtons(vehiclePassBtn: vehiclePassButton, vehicleFailBtn: vehicleFailButton, trailerPassBtn: trailerPassButton, trailerFailBtn: trailerFailButton)
}
Is any other way to do it instead of if statement?

Answer 1

The code inside your if statement will never be reached. According to Apple's documentation
isTouchInside is a Boolean value indicating whether a tracked touch event is currently inside the control’s bounds.
Emphasis on the currently. So no two buttons will be simultaneously touched at the same time.
To achieve your goal, your buttons need some kind of state with wich you can check if the button was touched. You could simply subclass a button and add a wasTouched attribute, e. g.
class StateButton: UIButton {
override func awakeFromNib() {
super.awakeFromNib()
self.addTarget(self, action: #selector(self.buttonWasTouched), for: .touchUpInside)
}
#objc private func buttonWasTouched() {
self.isSelected = true
}
}
Your delegate method then would look like this:
func tappedOnVehicleOrTrailerButtons(vehiclePassBtn: StateButton, vehicleFailBtn: StateButton, trailerPassBtn: StateButton, trailerFailBtn: StateButton) {
if (vehiclePassBtn.isSelected || vehicleFailBtn.isSelected) && (trailerPassBtn.isSelected || trailerFailBtn.isSelected) {
scrollDown()
}
}