Request that your application's processes be created with a large Dalvik heap. This applies to all processes created for the application. It only applies to the first application loaded into a process; if using a sharedUserId to allow multiple applications to use a process, they all must use this option consistently or will get unpredictable results.

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.

[Android Documentation]