title: [Flutter]How to download video to app, and make it accessible only through the app (Similarly to Youtube/Netflix)
body: <p>i'm fairly new to Flutter and is currently working on a course app that requires downloading the videos to the app.
  The downloaded video will only be accessible through the app just like Youtube and Netflix, and will be hidden/encrypted from gallery. Would greatly appreciate if someone if someone could point me in the right direction in building this feature.</p>