The context layer provided by the Intel Mobile Platform SDK enables an application to discover, manipulate, and interact with the system context such as Power and “Connectivity,” without knowledge of the specific devices that provide context and resource information.

Power: The Power interface in the context layer hides the complexity of requiring enumerating all batteries on the system and provides a more general view of power-related condition and events. The application can use this information to alter its behavior when the system is running on an internal power source vs. an external power source. In this sample application, the resolution of the display changes as a result of changes in power source.

Display: Mobile devices come in a variety of form factors, for example, PDAs, laptops, and mobile phones. Cross-platform applications must be aware of the geometry and orientation of the display in order to optimize its UI. In this sample application, the display properties are changed based on a system running on external vs. internal power as well as when a specified low-threshold battery life is reached.