title: Flutter offline video or audio
body: <p>How to save video or audio files for offline playing in flutter but the user can't reach the file? I want something like the YouTube app downloads. Are there any suggestions? Can I use something like this:
  <a href="https://pub.dev/packages/dio_http_cache/example" rel="nofollow noreferrer">https://pub.dev/packages/dio_http_cache/example</a>?</p>