从URL创建io.File

Question

是否有机会从URL创建文件？

我尝试过

http.Response response = await http.get('https://www.eman.cz/wp- 
content/uploads/2018/04/flutter_eman_blog.png');
File file = File.fromRawPath(response.bodyBytes);

我遇到FileSystemException：无法检索文件长度，path ='PNG