Toolbar with “Previous” and “Next” for Keyboard inputAccessoryView

Question

I\'ve been trying to implement this toolbar, where only the \'Next\' button is enabled when the top textField is the firstResponder and only the \'Previous\' button is enabl

Answer 1

Swift:

lazy var inputToolbar: UIToolbar = {
    var toolbar = UIToolbar()
    toolbar.barStyle = .default
    toolbar.translucent = true
    toolbar.sizeToFit()

    var doneButton = UIBarButtonItem(title: "Done", style: .bordered, target: self, action: "inputToolbarDonePressed")
    var flexibleSpaceButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
    var fixedSpaceButton = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil, action: nil)

    var nextButton  = UIBarButtonItem(image: UIImage(named: "keyboardPreviousButton"), style: .bordered, target: self, action: "keyboardNextButton")
    nextButton.width = 50.0
    var previousButton  = UIBarButtonItem(image: UIImage(named: "keyboardNextButton"), style: .Bordered, target: self, action: "keyboardPreviousButton")

    toolbar.setItems([fixedSpaceButton, nextButton, fixedSpaceButton, previousButton, flexibleSpaceButton, doneButton], animated: false)
    toolbar.userInteractionEnabled = true

    return toolbar
    }()

In UITextFieldDelegate

 func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
    textField.inputAccessoryView = inputToolbar

    return true
}