When I create a new subclass of UITextView
in the Xcode 6 Beta, the following code is automatically provided.
import UIKit
class TerminalView: UITextView {
init(frame: CGRect) {
super.init(frame: frame)
// Initialization code
}
}
The previous code (completely provided by Xcode with nothing removed) gives the following error.
Must call a designated initializer of the superclass 'UITextView'
As far as I know, the designated for all subclasses of UIView
is -initWithFrame:
(or in Swift, init(frame:)
. If this is the case, why does the code provided by Xcode result in an error? I have added no new instance variables to the class, so nothing else has to be initialized yet.
It seems as though the only initializer that works for now is:
super.init(frame: CGRect, textContainer: NSTextContainer?)
which can be called with
super.init(frame: CGRect.zero, textContainer: nil)
This is most likely a bug in the initial beta release and will be fixed in upcoming beta releases.
class SpecialText: UITextView {
override init(frame: CGRect, textContainer: NSTextContainer?) {
super.init(frame: frame, textContainer: textContainer)
common()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
common()
}
private func common() {
backgroundColor = .yellow
font = .systemFont(ofSize: 26)
textColor = .green
}
}
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