Specify whether a component is allowed to have multiple instances of itself running in different processes. Use with the activity and provider tags.

Normally the system will ensure that all instances of a particular component are only running in a single process. You can use this attribute to disable that behavior, allowing the system to create instances wherever they are used (provided permissions allow it). This is most often used with content providers, so that instances of a provider can be created in each client process, allowing them to be used without performing IPC.

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]