It implements ethers.js and bitcoinjs-lib node library by hack to implement it into react-native. To install

      npm i react-native-btc-eth-wallet

It contains features :

            1. Mnemonic code  generation,
            2. Bitcoin wallet address generation,
            3. Etherium wallet address generation.

Ways to use:

            import {createWallet, mnemonicsGenerator} from 'react-native-btc-eth-wallet';

            //invoke as
            const mnemonics = mnemonicsGenerator();
            createWallet({eth: true,btc:false, mnemonics});

Any new PR is welcome and show some love putting some stars to the project.