How can I implement cryptocurrency transactions in a React Native app?

How can I implement cryptocurrency transactions in a React Native app?

You can use libraries like 'react-native-crypto' and 'react-native-web3' to handle crypto transactions. Would you like a code example?

Yes, please provide a code example for sending Ethereum.

Here's a simple example using 'ethers.js':

import { ethers } from 'ethers';

const sendTransaction = async () => {
  const provider = new ethers.providers.Web3Provider(window.ethereum);
  const signer = provider.getSigner();
  const tx = await signer.sendTransaction({
    to: 'recipient_address',
    value: ethers.utils.parseEther('0.01')
  });
  console.log('Transaction Hash:', tx.hash);
};

This code sends 0.01 ETH to the specified address.

What do I need to set up before using this code?

You'll need to install 'ethers.js' and ensure you have a Web3 provider like MetaMask set up in your app.

Are there any security considerations I should be aware of?

Yes, always validate user inputs, handle errors gracefully, and consider using secure storage for private keys.