How can I highlight a UIImageView from an array when the view is tapped/clicked

Question

I have an array of UIImageViews (8 of them) and I want to highlight which ever one is tapped or clicked. NOTE: It doesn't have to be highlighted I am open to other way as well. As you will see in my code I tried a different way.

As you will see below I tried to access the index.layer.borderColor and then created and if else statement. next I created a UITapGuestureRecognizer function and called this in the viewDidLoad. App is crashing with an "out of bounds" error.

func setHandleTap() {
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap))
        imageArray[index(ofAccessibilityElement: 0..<7)].addGestureRecognizer(tapGesture)
    }

        @objc func handleTap() { // this funtion checks to see what the boarder image is and chages it to other once tapped.
        if imageArray[index(ofAccessibilityElement: 0..<7)].layer.borderColor == #colorLiteral(red: 0.01680417731, green: 0.1983509958, blue: 1, alpha: 1).cgColor {
            imageArray[index(ofAccessibilityElement: 0..<7)].layer.borderColor = #colorLiteral(red: 0, green: 0, blue: 0, alpha: 0).cgColor
        }else{
            imageArray[index(ofAccessibilityElement: 0..<7)].layer.borderColor = #colorLiteral(red: 0.01680417731, green: 0.1983509958, blue: 1, alpha: 1).cgColor
        }
    }
}

I call the setHandelTap() in ViewDidLoad hoping it would run allowing the image to be highlighted.

Answer 1

Iterating through the array should be enough for this.

Maybe something like this in your handleTap():

let desiredColor = #colorLiteral(red: 0.01680417731, green: 0.1983509958, blue: 1, alpha: 1).cgColor
for imageView in imageArray {
    if imageView.layer.borderColor == desiredColor {
        imageView.layer.borderColor = #colorLiteral(red: 0, green: 0, blue: 0, alpha: 0).cgColor // Sets it to Black Color.
    }
 }

Note: By the way there is no need for the else code because the current color is already the color you wanted to set on the else