How to overlay audio over video in android?

What would it take to overlay a UI theme on top of the Android OS so that the standard UI is replaced with a kiosk-style interface where users can only access selected apps provided in the theme (i.e. rss reader, video player, sms)?

• Answer:

  The framework of Android doesn't allow replacing the launcher (the large part of the UI) in a one-way direction (leaving the responsibility to select another launcher just to the launcher itself). What you are looking for is more like a MDM-solution. Major device manufacturers have implemented interfaces in their OS to allow MDM solutions from i.e. Airwatch or Sybase to remotely restrict how the device can be used. In your scenario, i.e. A LG device (which supports such extended features, I am sure others do as well) can be remotely configured to allow only execution of specific apps, to restrict access to settings menu, block access to Notification drawer, disable Bluetooth, etc. [Edit] I just realized that I assumed you are talking about a mobile phone or tablet, while you only referred to Android OS. If you generally just want to create a kiosk based on Android, the only required effort is coding I think :-)