How to show superscript for “®” registered symbol?

Question

I\'ve a issue regarding showing registered symbol as superscript. I\'ve used unicode value \\u00AE, but it shows in same line. I\'d like to have it a bit top of remaining texts.

Answer 1

For newcomers, here is a relatively flexible, swift 4 solution, inspired by Integrating Stuff's original answer. I wrote it as an extension on NSAttributedString - that just seems like the cleanest solution in my mind. In order to superscript the (R) symbol, just pass the string "®" into this method from wherever you are calling it.

extension NSAttributedString {

    class func superscriptInstances(ofString stringToReplace: String, withOriginalFont originalFont: UIFont, fromString string: String) -> NSAttributedString {
        let attributedString = NSMutableAttributedString(string: string)
        let length = attributedString.length
        let fontName = originalFont.fontName
        let fontSize = originalFont.pointSize
        let newSize = fontSize / 1.5
        let baselineOffset = fontSize / 3.0
        let newFont = UIFont(name: fontName, size: newSize)!
        var range = NSMakeRange(0, length)
        while (range.location != NSNotFound) {
            let nsstring = attributedString.string as NSString
            range = nsstring.range(of: stringToReplace, options: NSString.CompareOptions(rawValue: 0), range: range)
            if(range.location != NSNotFound) {
                attributedString.addAttributes([.font: newFont,.baselineOffset: baselineOffset], range: range)
                range = NSMakeRange(range.location + range.length, length - (range.location + range.length))
            }
        }
        return attributedString
    }

}