Function FsDemo

example/src/App.tsx:16–275

()

} from 'react-native-safe-area-context';

function FsDemo() {
  const [info, setInfo] = useState<{ key: string; value: string }[]>([]);
  const insets = useSafeAreaInsets();

  useEffect(() => {
    // Directory constants.
    setInfo([
      { key: 'CacheDir', value: Dirs.CacheDir },
      { key: 'DatabaseDir', value: Dirs.DatabaseDir ?? '<undefined>' },
      { key: 'DocumentDir', value: Dirs.DocumentDir },
      { key: 'LibraryDir', value: Dirs.LibraryDir ?? '<undefined>' },
      { key: 'MainBundleDir', value: Dirs.MainBundleDir },
      { key: 'SDCardDir', value: Dirs.SDCardDir ?? '<undefined>' },
    ]);

    // Deletes and asset extraction.
    FileSystem.unlink(Dirs.CacheDir + '/BundledData.txt')
      .then(() => console.log('Deleted BundledData.txt'))
      .catch(() => console.log('Did not delete BundledData.txt'))
      .then(() =>
        FileSystem.cpAsset(
          'BundledData.txt',
          Dirs.CacheDir + '/BundledData.txt'
        )
      )
      .then(() => FileSystem.readFile(Dirs.CacheDir + '/BundledData.txt'))
      .then((res) =>
        setInfo((prev) => {
          prev.push({
            key: 'readFile(CacheDir/BundledData.txt)',
            value: JSON.stringify(res),
          });
          return prev.slice();
        })
      );

    if (Platform.OS === 'android') {
      FileSystem.cpAsset(
        'raw/android_resource',
        Dirs.CacheDir + '/android_resource.txt',
        'resource'
      )
        .then(() =>
          FileSystem.readFile(Dirs.CacheDir + '/android_resource.txt')
        )
        .then((res) =>
          setInfo((prev) => {
            prev.push({
              key: 'readFile(CacheDir/android_resource.txt)',
              value: JSON.stringify(res),
            });
            return prev.slice();
          })
        );
    }

    // Disk usage.
    FileSystem.df().then((res) =>