title: How to share a file using flutter
body: <p>I am wondering how to share a file in a flutter app?</p>
  
  <p>I saw some old references to using Intents with mojo, but that no longer seems to be present.  This seems like a standard feature that we should be able to handle in a cross-platform way (obviously with some differences between ios to android).</p>
  
  <p>What is the current best practices for sharing files (e.g. via email)? The closest thing I could fine is UrlLauncher, which I could imagine using to launch a handler for a file that I want shared, but it seems a stretch.</p>