Undo redo Operation

Question

I have used the following code for undo redo operation. I am changing the label's background color and my undo/redo operation is working fine but now i have added label's text color so whenever i change only background color or text color individually it works fine but if i change background color and text color both at a time then it will not work properly. what should i do? please help.!

@IBOutlet var myObject: UILabel!

//  MARK: - View Life Cycle
override func viewDidLoad() {
    super.viewDidLoad()
    myObject.backgroundColor = UIColor.yellow
}

func setMyObjectColor(_ color: UIColor) {
        (undoManager?.prepare(withInvocationTarget: self) as AnyObject).setMyObjectColor(myObject.backgroundColor!)
        myObject.backgroundColor = color
}

func setMyObjectTextColor(_ color: UIColor) {
        (undoManager?.prepare(withInvocationTarget: self) as AnyObject).setMyObjectTextColor(myObject.textColor!)
        myObject.textColor = color
}

@IBAction func changeColor(_ sender: Any){
    setMyObjectColor(UIColor.blue)
}

@IBAction func changeTextColor(_ sender: Any){
    setMyObjectTextColor(UIColor.white)
}

@IBAction func undo(_ sender: Any) {
    undoManager?.undo()
}

@IBAction func redo(_ sender: Any) {
    undoManager?.redo()
}}

Answer 1

@IBOutlet var myObject: UILabel!

//  MARK: - View Life Cycle
override func viewDidLoad() {
    super.viewDidLoad()
    myObject.backgroundColor = UIColor.yellow
}

func setMyObjectColor(_ Backcolor: UIColor) {
        (undoManager?.prepare(withInvocationTarget: self) as AnyObject).setMyObjectColor(myObject.backgroundColor!)
        myObject.backgroundColor = Backcolor
}

func setMyObjectTextColor(_ Textcolor: UIColor) {
        (undoManager?.prepare(withInvocationTarget: self) as AnyObject).setMyObjectTextColor(myObject.textColor!)
        myObject.textColor = Textcolor
}

func setMyObjectText(_ Text: String) {
    (undoManager?.prepare(withInvocationTarget: self) as AnyObject).setMyObjectText((myObject.text! as AnyObject) as! String)
    myObject.text = Text
}

@IBAction func changeColor(_ sender: Any){
    setMyObjectColor(UIColor.blue)
}

@IBAction func changeTextColor(_ sender: Any){
    setMyObjectTextColor(UIColor.white)
}

@IBAction func changeText(_ sender: Any) {
    setMyObjectText("Khush")
}

@IBAction func undo(_ sender: Any) {
    undoManager?.undo()
}

@IBAction func redo(_ sender: Any) {
    undoManager?.redo()
}

Using this code my issue is solved.