Test android program with cumulocity SDK -

i new integrate cumulocity sdk android program. want try cumulocity example below code.

protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     final textview mtextview = (textview) findviewbyid(r.id.text1);     new asynctask<object, object, object>() {         @override         protected object doinbackground(object... arg0) {             log.i("richard debug","richard 1");             platform platform = new platformimpl(                     "https://developer.cumulocity.com", "<teanant id>", "<user>",                     "<password>","<unknow>");             log.i("richard debug","richard 2");             inventoryapi inventory = platform.getinventoryapi();             log.i("richard debug","richard 3");             managedobjectrepresentation mo = new managedobjectrepresentation();             log.i("richard debug","richard 4");             mo.setname("hello, android!");             log.i("richard debug","richard 5");             mo = inventory.create(mo);             log.i("richard debug","url: " + mo.getself());             return null;         }     }.execute(); } 

}

when run "inventory.create(mo);" server return. //log

"caused by: com.cumulocity.android.sdk.sdkexception: server returned 401: unauthorized! " 

i think problem maybe in function.

platform = new platformimpl(host, port, tenantid, user, password, applicationkey); 

i don't know what's "applicationkey" in function. use "" in parameter.

is there have 1 familiar cumulocity android sdk? or other way developing android program cumulocity server?

i found cumulocity provide more convenient way data server. try rest api on android , use android volley library data. solve problem develope app on android.