Right aligned UITextField spacebar does not advance cursor in iOS 7

Question

In my iPad app, I noticed different behavior between iOS 6 and iOS 7 with UITextFields.

I create the UITextField as follows:

UIButton *theButton = (U         


        

Answer 1

extension UITextField {

    /// runtime key
    private struct AssociatedKeys {

        ///
        static var toggleState: UInt8 = 0
    }

    /// prevent multiple fix
    private var isFixedRightSpace: Bool {
        get {
            return objc_getAssociatedObject(self, &AssociatedKeys.toggleState) as? Bool ?? false
        }
        set {
            objc_setAssociatedObject(self, &AssociatedKeys.toggleState, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
        }
    }

    open override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {

        if self.textAlignment == .right && !isFixedRightSpace {
            self.isFixedRightSpace = true
            self.addTarget(self, action: #selector(replaceNormalSpacesWithNonBreakingSpaces(textFiled:)), for: UIControl.Event.editingChanged)
        }

        return super.hitTest(point, with: event)
    }

    /// replace space to \u{00a0}
    @objc private func replaceNormalSpacesWithNonBreakingSpaces(textFiled: UITextField) {

        if textFiled.markedTextRange == nil && textFiled.text?.contains(" ") ?? false {

            /// keep current range
            let editRange = selectedTextRange
            textFiled.text = textFiled.text?.replacingOccurrences(of: " ", with: "\u{00a0}")
            /// reset this range
            selectedTextRange = editRange
        }
    }
}