Quick UITextField » SwiftUI wrapper for textfield that forces emoji keyboard

EmojiTextField.swift

import SwiftUI

// UIKit-based text field that forces emoji keyboard as input mode.
class UIEmojiTextField : UITextField {
    override var textInputMode: UITextInputMode? {
        return UITextInputMode.activeInputModes
            .filter { $0.primaryLanguage == "emoji" }
            .first
    }
}

// Wrap UIKit-based text field in view representable to provide to SwiftUI
struct EmojiTextField : UIViewRepresentable {
    @Binding var text: String
    
    func makeUIView(context: Context) -> UIEmojiTextField {
        let textField = UIEmojiTextField()
        textField.text = text
        textField.delegate = context.coordinator
        textField.placeholder = "Enter Emoji 🙃"
        return textField
    }
    
    func updateUIView(_ uiView: UIEmojiTextField, context: Context) {
        uiView.text = text
        uiView.reloadInputViews()
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }
    
    class Coordinator: NSObject, UITextFieldDelegate {
        var textField: EmojiTextField
        
        init(_ textField: EmojiTextField) {
            self.textField = textField
        }
        
        func textFieldDidChangeSelection(_ textField: UITextField) {
            // probably need to do more here to limit the character set, can't prevent users
            // from changing keyboards and entering text.
            textField.text = textField.text ?? ""
        }
    }
}

struct ContentView: View {
    @State var emojiText: String = ""

    var body: some View {
        VStack {
            EmojiTextField(text: $emojiText)
        }
        .padding()
    }
}