sdk/src/com/socialize/api/action/activity/SocializeActivitySystem.java
@Override
	public void getActivityByUser(SocializeSession session, long id, ActionListener listener) {
		String userId = String.valueOf(id);
		String endpoint = getEndpoint(userId);
		listAsync(session, endpoint, listener);
	}
@Override
	public void getActivityByUser(SocializeSession session, long id, ActionListener listener) {
		String userId = String.valueOf(id);
		String endpoint = getEndpoint(userId);
		listAsync(session, endpoint, listener);
	}
/*
(non-Javadoc)
@see com.socialize.api.action.activity.ActivitySystem#getActivityByUser(com.socialize.api.SocializeSession, long, com.socialize.listener.activity.ActionListener)