Keep track of which UITextField is currently in editing mode

Question

In the following code I have a couple buttons showing as an inputAccessoryView when inputFieldOne is in editing mode, when you tap First Button, it inputs ONE inside inputFieldOne and when I tap Second Button it inputs TWO inside inputFieldOne. It works as expected but what I would like to be able to do is re-use these buttons in multiple UITextFields. In other words, if I have another UTTextField called inputFieldTwo, I would like to be able to also input the values from those buttons when they're tapped.

How can I keep track of what UITextField is currently in editing mode so I can append the values from the buttons?

@IBOutlet weak var inputFieldOne: UITextField!
@IBOutlet weak var inputFieldTwo: UITextField!

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    addButtonsToKeyboard()
}

func addButtonsToKeyboard(){
    // First button
    let button1 = UIButton()
    button1.setTitle("First Button", for: UIControl.State())
    button1.addTarget(self, action: #selector(buttonKeyPress), for: UIControl.Event.touchUpInside)
    let barButton1 = UIBarButtonItem()
    barButton1.customView = button1

    // Second button
    let button2 = UIButton()
    button2.setTitle("Second Button", for: UIControl.State())
    button2.addTarget(self, action: #selector(buttonKeyPress), for: UIControl.Event.touchUpInside)
    let barButton2 = UIBarButtonItem()
    barButton2.customView = button2

    /// UIToolbar.
    let toolBar = UIToolbar()
    toolBar.tintColor = UIColor.blue
    toolBar.barTintColor = UIColor.red

    toolBar.items = [barButton1, barButton2]
    toolBar.sizeToFit()

    inputFieldOne.inputAccessoryView = toolBar
}

@objc func buttonKeyPress(_ sender: UIButton){

    switch sender.currentTitle!{
    case "First Button":
        inputFieldOne.text = "ONE"
    case "Second Button":
        inputFieldOne.text = "TWO"
    default: break
    }
}

score 1 · Answer 1 · answered Nov 25 '19 at 15:35

There are many ways to make it reusable as i have very limited time so i suggest you can do it with Extension

You can use it for you all textfield

So here is the code snippet:

    extension UITextField
{
    // you can pass here array of UIbarbutton also
    func addButtonsToKeyboard(){
        // First button
        let button1 = UIButton()
        button1.setTitle("First Button", for: UIControl.State())
        button1.addTarget(self, action: #selector(buttonKeyPress), for: UIControl.Event.touchUpInside)
        let barButton1 = UIBarButtonItem()
        barButton1.customView = button1

        // Second button
        let button2 = UIButton()
        button2.setTitle("Second Button", for: UIControl.State())
        button2.addTarget(self, action: #selector(buttonKeyPress), for: UIControl.Event.touchUpInside)
        let barButton2 = UIBarButtonItem()
        barButton2.customView = button2

        /// UIToolbar.
        let toolBar = UIToolbar()
        toolBar.tintColor = UIColor.blue
        toolBar.barTintColor = UIColor.red

        toolBar.items = [barButton1, barButton2]
        toolBar.sizeToFit()

        self.inputAccessoryView = toolBar
    }
    @objc func buttonKeyPress(_ sender: UIButton){

        switch sender.currentTitle!{
        case "First Button":
            self.text = "ONE"
        case "Second Button":
            self.text = "TWO"
        default: break
        }
    }

}

And with you textfield object you can add it with below code

txtSwift.addButtonsToKeyboard()

Hope it help you!!!

Keep track of which UITextField is currently in editing mode

1 Answers1