How to convert HEX to NSString in Objective-C?

user_403015 0
Viewed 24279

I have a NSString with hex string like "68656C6C6F" which means "hello".

Now I want to convert the hex string into another NSString object which shows "hello". How to do that ?

ipad iphone ios
5 Answers
extension String {
    func hexToString()-> String {
        var newString = ""
        var i = 0
        while i < self.count {
            let hexChar = (self as NSString).substring(with: NSRange(location: i, length: 2))
            if let byte = Int8(hexChar, radix: 16) {
                if (byte != 0) {
                    newString += String(format: "%c", byte)
                }
            }
            i += 2
        }
        return newString
    }
}
user_121432140
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