title: flutter build apk file not working on http requests?
body: <p>I used the command <code>flutter build apk --split-per-abi</code> then the app size got reduced from 48Mb to 7.1Mb.
  But in this reduced apk, the HTTP requests are not working.
  I also built using <code>flutter build apk</code>, through this the app size reduced to 19Mb, In this also the requests are not working.
  So what to do to reduce the application size and make the app work perfectly.</p>