This app is about downloading large file in background where user can download it from the internet.

Features:

1. It is a one-screen app with a single button in the centre that will start the download.
2. Display a progress widget on the screen to show the download progress/status.
3. After starting the download user may leave the app. But the download should continue in the background.
4. If the user leaves the app, notify the user about download progress/status using a notification.
5. If the user navigates to the app again, dismiss the notification and show the current download progress/status in the app screen.

Specifications:

• Have been using standard Material UI.
• Sample file to download.