So I've subclassed UIView
like so
class CustomView: UIView {
}
And I could do something like
let customView = CustomView()
But when I override what I believe are the two designated initialisers for UIView
ie init(frame:)
and init(coder:)
like so
class CustomView: UIView {
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
self.backgroundColor = UIColor.redColor()
}
override init(frame: CGRect) {
super.init(frame: frame)
self.backgroundColor = UIColor.redColor()
}
}
I can no longer create the view like so as it complains that init()
no longer exists
let customView = CustomView()
My understanding is that If I override all the designated initialisers, I should inherit all the convenience initializers as well.
So my question is. Is init()
not a convenience initializer on UIView? Or is there another designated initializer on UIView that I haven't overrided yet?
init
is not a convenience initializer on UIView. init
is not an initializer on UIView at all! It is an initializer on its superclass NSObject - UIView merely inherits it. And it is a designated initializer on NSObject. So when you implemented a designated initializer, you cut off inheritance of designated initializers - including init
.
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