parse.com - Change Parse Application when App is running -

i have android application works locals instalations , want use diferents parse applications. each instalation administrator contract parse directly. when app start keys parse.

i wonder how change parse app linkeded in android app once running

i have tried call parse.initialize (context, apllicationid, clientkey) twice doesn't work. have tried app register in diferent parse app every time start app link different parse app

it´s linked first application

public void oncreate(final bundle icicle){      super.oncreate(icicle);     final  context context = this;     setcontentview(r.layout.ssa);     getactionbar().hide();      // getting global variables     fmglobalsbean = utilities.getglobals(this);      if(!"".equals(fmglobalsbean.geturl_server())){       parse.initialize(contexto, "p4iwktrc0wtdkkmh6r60hjyzwx1tixchy8vcdvpb",  "khkcx4g3dqvprawhyiyfnhawqj1h2vyhwd3winlq");      parseinstallation.getcurrentinstallation().saveinbackground();      parsepush.subscribeinbackground(fmglobalsbean.geturl_server());                }           else     {     parse.initialize(this, "y3xgz58u4qcn9trovfqcoe4pbzhurjxooz3vdkgb", "ealo3nm4wa4lbj7krsr2osf60dziujeujdujtqzs");     parseinstallation.getcurrentinstallation().saveinbackground();     parsepush.subscribeinbackground("initial");     } }