import React, { useState } from "react";
import { Radio } from "react-native-magnus";

const [radioValue1, setRadioValue1] = useState(null);

<RadioGroup
  value={radioValue1}
  onChange={(value: any) => setRadioValue1(value)}
>
  <Radio value={1}>
    <Text>Pikachu</Text>
  </Radio>
  <Radio value={2}>
    <Text>Squirtle</Text>
  </Radio>
  <Radio value={3}>
    <Text>Charmendar</Text>
  </Radio>
  <Radio value={4}>
    <Text>Balbasaur</Text>
  </Radio>
</RadioGroup>;