title: How to insert percentage of completion of FFI function?
body: <p>I am trying to develop android application using flutter. I used <strong>Flutter FFI</strong> to interface and call function from <strong>.C (C language)</strong> files. Is there any way to show <strong>percentage of completion of function execution</strong> which called from <strong>.C</strong> language?</p>
  <p>I used multi threading to show normal loading screen. But I want to show percentage of function completion which called from C.</p>