ios - UIButton UIEdgeInsets 不起作用

Question

因此，我查看了 Stack Overflow 上所有为 UIButton 中的 UIImages 添加边缘插图的项目，但没有一个起作用。当我构建项目时，图像只是通过按钮的边界设置 - 它没有设置为插图，我不知道为什么。这是代码:

let Settingsbutton = AnimatableButton(frame: CGRect(x: 23, y: 30, width: 40, height: 40))
    Settingsbutton.layer.cornerRadius = Settingsbutton.frame.size.height / 2
    Settingsbutton.layer.backgroundColor = UIColor.white
    let roundedButton3 = UIButton(type: .custom)
    roundedButton3.frame = Settingsbutton.frame
    let _border3 = CAShapeLayer()
    _border3.path = UIBezierPath(roundedRect: roundedButton3.bounds, cornerRadius:roundedButton3.frame.size.width/2).cgPath
    _border3.frame = roundedButton3.bounds
    _border3.strokeColor = UIColor.white.cgColor
    _border3.fillColor = UIColor.clear.cgColor
    _border3.lineWidth = 3.0

    Settingsbutton.imageEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10)
    Settingsbutton.contentVerticalAlignment = .fill
    Settingsbutton.contentHorizontalAlignment = .fill
    Settingsbutton.layer.addSublayer(_border3)
    self.view.addSubview(Settingsbutton)
    self.view.bringSubview(toFront: Settingsbutton)

    if PFUser.current() == nil{
        Settingsbutton.setBackgroundImage(UIImage(named: "padlock"), for: .normal)

    }else{

    }

Answer 1

imageEdgeInsets 用于定位图像而不是背景图像!

使用setImage代替setBackgroundImage