Preventing hardware back button android for React Native

Question

I want to prevent the user from going back to the previous screen. So I added code, but this does not work. Are there any solutions for this? The alert pop up is seen but \"

Answer 1

If you are using react-natigation then you need to use BackHandler instead of BackAndroid

import { BackHandler } from 'react-native';

// code

componentDidMount() {
  BackHandler.addEventListener('backPress');
}

// some more code

componentWillUnmount() {
  BackHandler.removeEventListener('backPress');
}