UIAlertController change background color of Cancel button for action sheet

Question

I am trying to create a UIAlertController with the action sheet style but I want to change the background color to a gray color. I have been able to find a way to change the

Answer 1

You cannot change color of a default cancel button style. You need to create a custom view controller for the cancel button and set it as a content view controller of a cancel alert action. This way keeps the cancel button separately

let alertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)

alertController.addAction(UIAlertAction(title: "Option 1", style: .default, handler: nil))
alertController.addAction(UIAlertAction(title: "Option 2", style: .default, handler: nil))
alertController.addAction(UIAlertAction(title: "Option 3", style: .default, handler: nil))

alertController.addAction(UIAlertAction(title: "Delete", style: .destructive, handler: nil))

if let firstSubview = alertController.view.subviews.first, let alertContentView = firstSubview.subviews.first {
    for view in alertContentView.subviews {
        view.backgroundColor = .darkGray
    }
}

alertController.view.tintColor = .white

let cancelButtonViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "CancelButtonViewController")
let cancelAction = UIAlertAction(title: "", style: .cancel, handler: nil)
cancelAction.setValue(cancelButtonViewController, forKey: "contentViewController")

alertController.addAction(cancelAction)

present(alertController, animated: true, completion: nil)