React Native | Android Backbutton HOC

androidBackButton.js

import React, { Component } from 'react';
import { BackHandler } from 'react-native';

const AndroidBackButton = (WrappedComponent) => {

  return class extends Component {

    constructor(props) {
      super(props)
    }

    componentDidMount() {
      this.backHandler = BackHandler.addEventListener('hardwareBackPress', () => {
        this.props.history.goBack() // for react-router-dom -> https://github.com/ReactTraining/react-router
        return true;
      });
    }

    componentWillUnmount() {
      this.backHandler.remove();
    }

    render() {
      return <WrappedComponent {...this.props} />
    }

  }

}

export default AndroidBackButton

// then use: withRouter(AndroidBackButton(YOURComponent))

I don't see any reason of using HOC or wrapping any content into into this, it does not add anything to wrapped content. So in my opinion better implementation would be something like this.
Abstract button, that does not require using react-router or any other routing library. With it you are able to specify custom actions for back button.

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { BackHandler } from 'react-native';

/**
 * To use provide onPress handler
 */
class AndroidBackButton extends Component {
  static propTypes = {
    onPress: PropTypes.func.isRequired,
  };

  componentDidMount() {
    this.backHandler = BackHandler.addEventListener('hardwareBackPress', (...args) => {
      const { onPress } = this.props;
      return onPress(...args);
    });
  }

  componentWillUnmount() {
    this.backHandler.remove();
  }

  render() {
    return null;
  }
}

export default AndroidBackButton;

Using with react-router, just put it anywhere you want this behavior <HistoryBackButton />.

export const HistoryBackButton = withRouter(({ history }) => (
  <AndroidBackButton
    onPress={() => {
      history.goBack();
      return true;
    }}
  />
));

I didn't run this code, so its more like pseudo code. :)

@burdiuz perfect approach to ;)