How to update Context manually for React Native android?

I have set up a language context for my app which works to change the language when I change the language of the device.What I am trying to accomplish now is adding a button to switch the language manually.Is this possible with my code currently or should I redo my context?

This is my language context code.

Thank you

import React, { useContext, useEffect, useState } from 'react';import en from "../lang/en.json"import ga from "../lang/ga.json"import * as RNLocalize from "react-native-localize"import App from '../../App';import { StringSchema } from 'yup';import { DevSettings } from 'react-native';type LanguageContextType = {    hello: string;    Good: string;}export const LanguageContext = React.createContext<LanguageContextType>({} as LanguageContextType);let languageObj = ({'en': en,'es-US': ga})export const LanguageContextProvider: React.FC = () => {    const [selectedLanguage, setSelectedLanguage] = useState('en');    useEffect(() => {        console.log(RNLocalize.getLocales())        const currentLanguage =RNLocalize.findBestAvailableLanguage(Object.keys(languageObj));        setSelectedLanguage(currentLanguage?.languageTag || 'es-US');    }, []);    const value = {        ...languageObj[selectedLanguage as 'en' | 'es-US'],    };    return ( <LanguageContext.Provider value={value}><App /></LanguageContext.Provider>    );};export const useTranslation = () => useContext(LanguageContext);

I would be hoping that be clicking a button my code would switch from whatever language out of the 2 is set and set the other one