Question

Swift Programming.

Add conditions to code below:

1.) Checks to see if both text fields are empty and if both are, prints out an error for the user

2.) Checks, if either one of the text fields are empty, also prints out an error for the user

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@IBOutlet weak var addRouting: UITextField! //outlet for the routing textfield
    @IBOutlet weak var addAccount: UITextField! //outlet for the account textfield
  
    @IBAction func saveBankAccount(_ sender: Any) { //button action
      
        if addRouting.text! .isEmpty{ //check for the empty routing
            let alertControl = UIAlertController(title: "ERROR!", message: "Enter Rounting", preferredStyle: .alert)
            alertControl.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(alertControl, animated: false)
        }
        else if addAccount.text!.isEmpty{ //check for the empty account
            let alertControl = UIAlertController(title: "ERROR!", message: "Enter Account", preferredStyle: .alert)
            alertControl.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(alertControl, animated: false)
        }
    }

Answer 1

Below is the solution:

@IBOutlet weak var addRouting: UITextField!
    @IBOutlet weak var addAccount: UITextField!
  
    @IBAction func alertBox(_ sender: Any) {
        if addRouting.text! .isEmpty && addAccount.text! .isEmpty{ //check for both textbox empty
            let alertControl = UIAlertController(title: "ERROR!", message: "Enter Account and Routing", preferredStyle: .alert)
            alertControl.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(alertControl, animated: false)
          
        }
        else if addAccount.text!.isEmpty{ //check for the empty account
            let alertControl = UIAlertController(title: "ERROR!", message: "Enter Account", preferredStyle: .alert)
            alertControl.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(alertControl, animated: false)
        }
        else if addRouting.text! .isEmpty{ //check for the empty routing
            let alertControl = UIAlertController(title: "ERROR!", message: "Enter Rounting", preferredStyle: .alert)
            alertControl.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(alertControl, animated: false)
        }
    }