Checking if a word is real - swift

Question

I want to make sure that a word is real and this is my code:
var checker: UITextChecker = UITextChecker()
var range: NSRange = NSRange(location: 0,length: (count(completeWord)))
var misspelledRange: NSRange = checker.rangeOfMisspelledWordInString(completeWord, range: range, startingAt: 0, wrap: false, language: "en_US")
var isRealWord: Bool = misspelledRange.location == NSNotFound
if isRealWord {
println("Correct")
} else {
println("Not Correct")
}
But even if I give it a letter, it says correct. What can I do about that? Basically, I want to remove letters from the corrects.

Answer 1

UITextChecker gives you misspelled words in a sentence. It won't show you wrong letter in a word, but wrong word in the whole text input.
For example:
var checker: UITextChecker = UITextChecker()
let string:NSString = "Airplane is gren"
var range: NSRange = NSRange(location: 0,length: string.length)
var misspelledRange: NSRange = checker.rangeOfMisspelledWordInString(string as String, range: range, startingAt: 0, wrap: false, language: "en_US")
misspelledRange.toRange()
gives you result as 12..<16, i.e the whole word.
You could use guessesForWordRange to get possible correct substitutes:
let guesses = checker.guessesForWordRange(misspelledRange, inString: string as String, language: "en_US") as? [String]
(returns ["green", "greg", "grep", "grew", "grey", "gran", "grin", "glen", "aren", "oren", "wren"])