Count user login attempts using IBAction button

Question

I want to count how many times login button is clicked. If username and passwords field are empty and login button is clicked I want the count to be incremented by 1.

As I can not take "count" as inout parameter in this IBAction function, how can I accomplish this task?

@IBAction func loginButtonAction(_ sender: Any) {

    var count : Int = 0
    if (Username.text!.isEmpty || Password.text!.isEmpty ) {
        let myAlert = UIAlertController(title: "Alert", message: "All fields are required to fill in", preferredStyle: UIAlertController.Style.alert)
        let OkAction = UIAlertAction(title: "Ok", style: UIAlertAction.Style.default, handler: nil)
        myAlert.addAction(OkAction)
        self.present(myAlert,animated: true, completion: nil)
        return
    }

Answer 1

YOU CAN USE STATIC VARIABLES:

class MyLogs {
    static var numberOfLoginAttempts = 0

    init() {}

    func loginAttempt() {
        numberOfLoginAttempts += 1
    }

}

USAGE:

let logs = MyLogs()

@IBAction func loginButtonAction(_ sender: Any) {

    logs.loginAttempt()
    print("Login Attempt Number : \(MyLogs.numberOfLoginAttempts)")
    var count : Int = 0
    if (Username.text!.isEmpty || Password.text!.isEmpty ) {
        let myAlert = UIAlertController(title: "Alert", message: "All fields are required to fill in", preferredStyle: UIAlertController.Style.alert)
        let OkAction = UIAlertAction(title: "Ok", style: UIAlertAction.Style.default, handler: nil)
        myAlert.addAction(OkAction)
        self.present(myAlert,animated: true, completion: nil)
        return
    }
}

If You Want To Close The Application And Still Have The Number Of Logins:

Take a look at CoreData