Create a File object from a URI.
If uri
cannot reference a file this throws UnsupportedError.
factory File.fromUri(Uri uri) => new File(uri.toFilePath());
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-io/File/File.fromUri.html