iOS can't handle assets not managed by Expo

[YousefED]

When passing a file:// reference to resolveAsync, the file must be in the expo directory. Of not, an error will be thrown around https://github.com/expo/expo-file-system/blob/master/ios/EXFileSystem/EXFileSystem.m:639.

This is not ideal, as it prevents other libraries from easily using expo modules without depending on expo completely.

My current workaround is as follows, using react-native-fs to copy to the expo directory:

const localUri =
            expoFileSystem.FileSystem.cacheDirectory + filenameFromUri(uri);

        if (uri !== localUri) {
            // workaround for iOS
            await fs.copyFile(uri, localUri);
        }

[reggie3]

I'm running into the same problem trying to adapt react-native-webview-leaflet and react-native-webview-quill-js to use this library. Both packages work well in their standalone demo apps, but the webviews in my packages are unable to find their index.html files when the packages are included in a separate application. Is this an issue that will be addressed at some point?