SwiftUI-MLKit-IdentifyLanguage.swift

import SwiftUI
import FirebaseMLNaturalLanguage

struct ContentView: View {
    
    @State var name: String = ""    
    @State var languageIdentified: String = ""
    
    var body: some View {
        
        VStack(alignment: .center, spacing: 20){
            TextField("Enter some text", text: $name)
                .font(.system(size: 20))
                .multilineTextAlignment(.center)
            
            Text(languageIdentified)
            
            Button(action: identifyLanguage, label: {
                Text("Identify Language").foregroundColor(.blue)
            }) 
        }
    }
    
    func identifyLanguage(){
        let languageId = NaturalLanguage.naturalLanguage().languageIdentification()
        
        languageId.identifyLanguage(for: name) { (languageCode, error) in
            if let error = error {
                print("Failed with error: \(error)")
                return
            }
            if let languageCode = languageCode, languageCode != "und" {
                self.languageIdentified = languageCode
            } else {
                self.languageIdentified = "No language was identified"
            }
        }
    }
}