1 <!-- 2 Copyright 2012 The Android Open Source Project 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 --> 16 17 # Data Usage Technical Information # 18 19 Android 4.0 (Ice Cream Sandwich) introduces new features that help 20 users understand and control how their device uses network data. It 21 monitors overall data usage, and supports warning or limit thresholds 22 which will trigger notifications or disable mobile data when usage 23 exceeds a specific quota. 24 25 Data usage is also tracked on a per-application basis, enabling users 26 to visually explore historical usage in the Settings app. Users can 27 also restrict how specific applications are allowed to use data when 28 running in the background. 29 30 The documentation in this section is intended for systems integrators 31 and mobile operators, to help explain technical details they should be 32 aware of when porting Android to specific devices. These details are 33 summarized below, and the 34 [android-porting](mailto:android-porting+subscribe (a] googlegroups.com) 35 mailing list is a good place for further discussion. 36 37 38