Adding IBInspectable to a properly-typed variable makes it available in Xcode’s Interface Builder. But that only works if variable
type is declared explicitly as one of the following:
-
Int types, Double, Float, Bool
-
String (or its optional)
-
CGFloat, CGPoint, CGSize, CGRect
-
UIColor, UIImage (and their optionals)
-
NSString, NSColor, NSImage (and their optionals)
-
NSRect, NSPoint, NSSize,
Noncompliant code example
@IBInspectable // Noncompliant; type is implicit
public var cornerRadius = 2.0 {
didSet {
//...
}
}
Compliant solution
@IBInspectable
public var cornerRadius: CGFloat = 2.0 {
didSet {
//...
}
}
