Custom UIButton Causes Storyboard Agent Crash Swift - swift

Question

I created a custom UIButton class and it causing the storyboard agent to fail.
I'm Including my extensions cause I really don't know what the problem is.
I tried to debug this view from the storyboard but it sends me straight to assembly code.
I tried to make it a without #IBDesignable, but it still cause a crash.
Also if you tips for improving how I'm writing my class I'll be glad to hear them.
I'll be glad if you can help me
This is my class:
#IBDesignable class customButton: UIButton{
private let imagesPadding: CGFloat = 2
private var ArrowSymbleImageView: UIImageView!
#IBInspectable var iconImageInspectable: UIImage = UIImage(systemName: "globe")!{
willSet {
if (ArrowSymbleImageView != nil) {
ArrowSymbleImageView.image = newValue
}
}
}
#IBInspectable var BackgroundColorInspectable: UIColor = .white {
willSet {
self.backgroundColor = newValue
if (ArrowSymbleImageView != nil) {
if (self.BackgroundColorInspectable.isDarkColor) {
ArrowSymbleImageView.tintColor = .white
}else{
ArrowSymbleImageView.tintColor = .black
}
}
}
}
required init?(coder: NSCoder) {
super.init(coder: coder)
self.generalInit()
}
private func generalDeinit() {
ArrowSymbleImageView.removeFromSuperview()
}
private func generalInit() {
self.backgroundColor = self.BackgroundColorInspectable
self.roundCorners(corners: [.bottomLeft], radius: self.width() / 2 * 0.7)
self.dropShadow()
let sizePartFromView: CGFloat = 4
ArrowSymbleImageView = UIImageView(frame: CGRect(x: self.width() / 2 - (self.width() / sizePartFromView / 2),
y: self.height() / 2 - (self.height() / sizePartFromView / 2),
width: self.width() / sizePartFromView,
height: self.height() / sizePartFromView))
ArrowSymbleImageView.image = self.iconImageInspectable
if (self.BackgroundColorInspectable.isDarkColor) {
ArrowSymbleImageView.tintColor = .white
}else{
ArrowSymbleImageView.tintColor = .black
}
ArrowSymbleImageView.contentMode = .scaleAspectFill
self.addSubview(ArrowSymbleImageView)
}
}
internal extension UIView {
func roundCorners(corners: UIRectCorner, radius: CGFloat) {
let path = UIBezierPath(roundedRect: bounds, byRoundingCorners: corners, cornerRadii: CGSize(width: radius, height: radius))
let mask = CAShapeLayer()
mask.path = path.cgPath
layer.mask = mask
}
}
internal extension UIView {
func dropShadow(scale: Bool = true, size: CGSize = CGSize(width: -2, height: 2)) {
layer.masksToBounds = false
layer.shadowColor = UIColor.black.cgColor
layer.shadowOpacity = 0.5
layer.shadowOffset = size
layer.shadowRadius = 1
layer.shadowPath = UIBezierPath(rect: bounds).cgPath
layer.shouldRasterize = true
layer.rasterizationScale = scale ? UIScreen.main.scale : 1
}
func dropShadow(color: UIColor, opacity: Float = 0.5, offSet: CGSize, radius: CGFloat = 1, scale: Bool = true) {
layer.masksToBounds = false
layer.shadowColor = color.cgColor
layer.shadowOpacity = opacity
layer.shadowOffset = offSet
layer.shadowRadius = radius
layer.shadowPath = UIBezierPath(rect: self.bounds).cgPath
layer.shouldRasterize = true
layer.rasterizationScale = scale ? UIScreen.main.scale : 1
}
}
internal extension UIColor
{
var isDarkColor: Bool {
var r, g, b, a: CGFloat
(r, g, b, a) = (0, 0, 0, 0)
self.getRed(&r, green: &g, blue: &b, alpha: &a)
let lum = 0.2126 * r + 0.7152 * g + 0.0722 * b
return lum < 0.50 ? true : false
}
}

Answer 1

I noticed this:
UIImage(systemName: "globe")!
Is there a reason why you instantiate a custom image this way? Is "globe" an apple provided default image?
You should be really using, if this isn't a default image.
UIImage(named:"globe")!

Answer 2

Dont use Force unwrapping when you do not have confirmation about data always use optional binding and do change following line in code from this UIImage(systemName: "globe")! to UIImage(named:"globe")! .