tableview单元格中的自定义按钮图像没有变化？

Question

Ive got a custom tableview with a label and button. When the button is pressed on an individual cell, the image should change. But it doesnt?

so it logs "testing" when I click the individual custom tableview cell button, but the image doesnt change.

@IBAction func tickAction(sender: UIButton) {
    println("testing")

    if let image = UIImage(named:"Unchecked.png") {
        sender.setImage(UIImage(named:"Checked.png"), forState: .Normal)

    }
    if let image = UIImage(named:"Checked") {
        sender.setImage(UIImage(named:"Unchecked.png"), forState: .Normal)
    }
}

Answer 1

Your condition is wrong. Which image you are checking?

try to do it like:

@IBAction func tickAction(sender: UIButton) {
    println("testing")

    if (sender.selected) {
        sender.setImage(UIImage(named:"Unchecked.png"), forState: .Normal)
        sender.selected = false
    }
    else {
        sender.setImage(UIImage(named:"Checked.png"), forState: .Normal)
        sender.selected = true
    }
}