How to check a string is spelled correctly using UITextChecker
Swift version: 5.6
You can draw on the iOS dictionary in just a few lines of code thanks to the UITextChecker class. Tell it the range of the string you want to check (this could be the whole string or just part of it), then ask it to tell you where the spelling error is. If it says there are no errors, the word is good. Here's the code:
func isReal(word: String) -> Bool {
let checker = UITextChecker()
let range = NSRange(location: 0, length: word.utf16.count)
let misspelledRange = checker.rangeOfMisspelledWord(in: word, range: range, startingAt: 0, wrap: false, language: "en")
return misspelledRange.location == NSNotFound
}Note that rangeOfMisspelledWord(in:) accepts a language parameter, so you can change that as needed.
SAVE 50% To celebrate WWDC23, all our books and bundles are half price, so you can take your Swift knowledge further without spending big! Get the Swift Power Pack to build your iOS career faster, get the Swift Platform Pack to builds apps for macOS, watchOS, and beyond, or get the Swift Plus Pack to learn advanced design patterns, testing skills, and more.
Available from iOS 3.2 – see Hacking with Swift tutorial 5
Similar solutions…
- How to check whether a string contains any words from an array
- How to check your program state using precondition()
- How to check for valid method input using the guard keyword
- How to fix “Cannot convert value of type 'String' to expected argument type 'Binding
’” - How to check for internet connectivity using NWPathMonitor
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
