Value: 16843406
Specify whether this feature is required for the application. The default is true, meaning the application requires the feature, and does not want to be installed on devices that don't support it. If you set this to false, then this will not impose a restriction on where the application can be installed.
Must be a boolean value, either "true" or "false".
This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.