iOS如何从UISlider中删除发光/阴影

Question

How do I remove the glow/shadow from this UISlider?

Answer 1

事实证明，我需要做的就是设置一个自定义的拇指图像，阴影不存在。

Answer 2

I do this in the didSet of the UISlider (Swift 3):

@IBOutlet weak var slider: UISlider!{
    didSet{
        slider.setThumbImage(<image when not touched>, for: .normal)
        slider.setThumbImage(<image when touched>, for: .highlighted)
    }
}