breautek commented on issue #442:
URL: https://github.com/apache/cordova/issues/442#issuecomment-1773743992
Access to `externalRootDirectory` is limited under Android's scoped storage
rules, though I think `resolveLocalFileSystemURL` should still "work", but what
you do on it might be limited. I don't believe you can create new directories
in the root external directory anymore. You don't tell us what the `n` error
function is actually attached to, or what the actual error is.
If you're trying to resolve to the Documents directory, that directory is a
standard directory on android, therefore it should be safe to do something like
```
const documentsDir = cordova.file.externalRootDirectory + "Documents";
window.resolveLocalFileSystemURL(documentsDir, function (dirEntry) {
}
```
> What permission should I add to be able to write a .CSV file in the
"Documents" folder ?
Now this largely depends on whether your app "owns" the csv file. The short
answer is, no permission is needed, or there is no permission available and
what you're attempting to do is now impossible with the filesystem.
Under scoped storage rules, no permissions are needed to read/write to files
that your files owns/created.
If the file is owned by another application, then you **cannot** write to
that file using filesystem. Android literally does not support overwriting
other apps files directly through the filesystem. Additionally for third-party
files, Android only supports reading Images, Videos, and Audio files, but not
"Document" files like a CSV file, with the appropriate permissions
(`READ_EXTERNAL STORAGE` for API 32 and earlier, or `READ_MEDIA_IMAGE`,
`READ_MEDIA_VIDEO`, `READ_MEDIA_AUDIO` for API 33 and later).
If you wish to write a third-party file, a media store plugin that
interfaces with the native `MediaStore` API must be used, which unlike the
filesystem api that this plugin implements, has support to get temporary
permission to read/write to a third-party file.
Also note that specifically on API 29 (Android 10) Android does not support
the external filesystem at all via filesystem APIs. See [more
details](https://github.com/apache/cordova-plugin-file#androids-external-storage-quirks).
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