Data Usage Technical Information
Android 4.0 (Ice Cream Sandwich) introduces new features that help users understand and control how their device uses network data. It monitors overall data usage, and supports warning or limit thresholds which will trigger notifications or disable mobile data when usage exceeds a specific quota.
Data usage is also tracked on a per-application basis, enabling users to visually explore historical usage in the Settings app. Users can also restrict how specific applications are allowed to use data when running in the background.
The documentation in this section is intended for systems integrators and mobile operators, to help explain technical details they should be aware of when porting Android to specific devices. These details are summarized below, and the android-porting mailing list is a good place for further discussion.