UISwitch set on/off Image - xcode

Question

I want to set my Switch like this:
But I try in ios9 , it does not work.
I saw in apple UISwitch Class Reference.
It says that :
Discussion
In iOS 7, this property has no effect.
How about iOS 9? Any one success?
My Code:
switch1 = UISwitch(frame:CGRectMake(self.view.frame.width/2 - 20, 400, 10, 100))
switch1.on = true
switch1.onTintColor = UIColor.lightGrayColor()
switch1.tintColor = UIColor.greenColor()
switch1.thumbTintColor = UIColor.blackColor()
//set on/off image
switch1.onImage = UIImage(named: "on-switch")
switch1.offImage = UIImage(named: "off-switch")

Answer 1

Use a UIButton instead.
let switchButton = UIButton(type: .Custom)
switchButton.selected = true
switchButton.setImage(UIImage(named: "on-switch"), forState: .Selected)
switchButton.setImage(UIImage(named: "off-switch"), forState: .Normal)
Use switchButton.isSelected instead of switch1.on. You'll have to toggle switchButton.isSelected when it is tapped, which you can do like this:
switchButton.isSelected.toggle()

Answer 2

For iOS 13, you could do this way:
let switcher = UISwitch()
switcher.addTarget(self, action: #selector(pressed), for: .valueChanged)
#objc func pressed(sender: UISwitch) {
let color = UIColor(patternImage: UIImage(named: sender.isOn ? "on.png": "off.png")!)
if sender.isOn {
sender.onTintColor = color
} else {
sender.tintColor = color
sender.subviews[0].subviews[0].backgroundColor = color
}
}
NOTE: your image should look like:
Then the final result is:

Answer 3

Not an exact answer to your question, but if you want a completely custom button switch programmatically (that you can add text to), this will work too:
import UIKit
class RDHiddenVisibleButton: UIButton {
// Hidden / Visible Button Function
var isOn = false
override init(frame: CGRect) {
super.init(frame: frame)
initButton()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
initButton()
}
func initButton() {
layer.borderWidth = 2.0
layer.borderColor = Colors.radiusGreen.cgColor
layer.cornerRadius = frame.size.height/2
setTitleColor(Colors.radiusGreen, for: .normal)
addTarget(self, action: #selector(RDHiddenVisibleButton.buttonPressed), for: .touchUpInside)
}
#objc func buttonPressed() {
activateButton(bool: !isOn)
}
func activateButton(bool: Bool) {
isOn = bool
let color = bool ? Colors.radiusGreen : .clear
let title = bool ? "Hidden" : "Visible"
let titleColor = bool ? . white : Colors.radiusGreen
setTitle(title, for: .normal)
setTitleColor(titleColor, for: .normal)
backgroundColor = color
}
}