setFilePath method
Points this wrapper at <cwd>/<filePath>/<fileName>.
filePath is a directory relative to the current working directory
(typically web) and fileName is the file inside it (for example
index.html or manifest.json).
Implementation
void setFilePath({
required String filePath,
required String fileName,
}) {
try {
_filePath = path.join(Directory.current.path, filePath, fileName);
_file = File(_filePath!);
} catch (e) {
rethrow;
}
}