java - Need context in non-activity -

i have mainactivity, class called failedpasswordhandler , camerahandler. failedpasswordhandler implements deviceadminreceiver. want create camerahandler object in failedpasswordhandler class, requires context argument. how context failedpasswordhandler class?

this have in mainactivity:

intent intent = new intent(devicepolicymanager.action_add_device_admin); componentname deviceadmin = new componentname(mainactivity.this, failedpasswordhandler.class); intent.putextra(devicepolicymanager.extra_device_admin, deviceadmin); startactivityforresult(intent, 1); 

and want create camerahandler object this, in failedpasswordhandler class started intent above:

ch = new camerahandler(this); ch.initializecamera(); 

the 'this' argument being mainactivity.

i handle using custom application class. example:

public class helper extends application {      private context mcontext;      public void oncreate() {         super.oncreate();         mcontext = this;     }      public context getcontext() {         return mcontext;     } } 

this way can context of application every time need it.