react-native-view-shot/example/src/FS.js

/* eslint-disable react-native/no-inline-styles */
//@flow
import React, { useState, useCallback } from 'react';
import { SafeAreaView, Image, View } from 'react-native';
import ViewShot from 'react-native-view-shot';
import RNFS from 'react-native-fs';
import Desc from './Desc';

const dimension = { width: 50, height: 50 };

const FSExample = () => {
  const [source, setSource] = useState(null);
  const onCapture = useCallback(async file => {
    const data = await RNFS.readFile(file, 'base64');
    setSource({ uri: 'data:image/png;base64,' + data });
  }, []);
  return (
    <SafeAreaView>
      <ViewShot onCapture={onCapture} captureMode="mount" style={dimension}>
        <View
          style={{
            ...dimension,
            backgroundColor: 'red',
          }}
        />
      </ViewShot>

      <Desc desc="FS to get the image from captured file" />

      <Image fadeDuration={0} source={source} style={dimension} />
    </SafeAreaView>
  );
};

FSExample.navigationOptions = {
  title: 'react-native-fs',
};

export default FSExample;