NSNumberFormatter : Show 'k' instead of ',000' in large numbers?

Question

I\'d like to change my large numbers from 100,000 to $100K if this is possible.

This is what I have so far:

let valueFormatter = NSN         


        

Answer 1

I've bumped into the same issue and solved it by implementing a custom formatter. Just started coding in Swift, so the code might not be the most idiomatic.

open class KNumberFormatter : NumberFormatter {
    override open func string(for obj: Any?) -> String? {
        if let num = obj as? NSNumber {
            let suffixes = ["", "k", "M", "B"]
            var idx = 0
            var d = num.doubleValue
            while idx < 4 && abs(d) >= 1000.0 {
                d /= 1000.0
                idx += 1
            }
            var currencyCode = ""
            if self.currencySymbol != nil {
                currencyCode = self.currencySymbol!
            }

            let numStr = String(format: "%.1f", d)

            return currencyCode + numStr + suffixes[idx]
        }
        return nil
    }
}