smartcard - javaemvreader android example code -

i trying build android application read credit card / smart card data form micro usb smart card reader. when use app google play, can read card data using card reader: https://play.google.com/store/apps/details?id=com.scdroid.emvdemo&hl=en

according developer's website use library build app: https://code.google.com/p/javaemvreader/

unfortunately tried use code in getting terminal exception :

sasc.terminal.terminalexception: no provider available

my code looks this:

    protected void testscreader() {         smartcard smartcard = null;         cardconnection conn = null;           try {              conn = terminalutil.connect(terminalutil.state.card_present);              if(conn == null){                 rawt.append("terminalutil.connect returned null");                 return;              }                   sessionprocessingenv env = new sessionprocessingenv();              env.setreadmasterfile(true);              env.setprobeallknownaids(true);              cardsession cardsession = cardsession.createsession(conn, env);                smartcard = cardsession.initcard();                emvsession session = emvsession.startsession(smartcard, conn);              session.initcontext();                (emvapplication app : smartcard.getemvapplications()) {                      session.selectapplication(app);                      session.initiateapplicationprocessing(); //get processing options + read  record(s)                      if (!app.isinitializedonicc()) {                          //skip if gpo failed (might not emv card, or conditions not satisfied)                          continue;                      }                        //be careful when setting this, block application if pin try counter reaches 0                      //must combined pin callback handler                      emvterminal.setdoverifypinifrequired(false);                      session.preparetransactionprocessing();                                //check if transaction processing skipped steps                        if(app.getatc() == -1 || app.getlastonlineatc() == -1) {                          session.testreadatcdata(); //atc, last online atc                      }                        //if pin try counter has not been read, try read                      if(app.getpintrycounter() == -1) {                          session.readpintrycounter();                      }                        if(!app.istransactionlogprocessed()) {                          session.checkfortransactionlogrecords();                      }                                             //testgetchallenge (see if app supports generating unpredictable number)                        session.testgetchallenge();                }                system.out.println("\n");              system.out.println("finished processing card.");              system.out.println("now dumping card data in more readable form:");              system.out.println("\n");                   rawt.append("finished processing card.");                //see clause            } catch (terminalexception ex) {              ex.printstacktrace(system.err);              rawt.append(ex.tostring());          } catch (unsupportedcardexception ex) {              system.err.println("unsupported card: " + ex.getmessage());              rawt.append(ex.tostring());              if (conn != null) {                  //system.err.println("atr: " + util.prettyprinthexnowrap(conn.getatr()));                  system.err.println(atr_db.searchatr(conn.getatr()));              }          } catch (smartcardexception ex) {              ex.printstacktrace(system.err);              rawt.append(ex.tostring());          } {              if (conn != null){                  try{                      conn.disconnect(true);                  }catch(terminalexception ex){                      ex.printstacktrace(system.err);                  }              }              if (smartcard != null) {                  try {                    /* int indent = 0;                      log.d("fhd_dbg","======================================");                      log.d("fhd_dbg","             [smart card]             ");                      log.d("fhd_dbg","======================================");                      smartcard.dump(log.d, indent);                      log.d("fhd_dbg","---------------------------------------");                      log.d("fhd_dbg","                finished               ");                      log.d("fhd_dbg","---------------------------------------");                      //log.getprintwriter().flush();*/                  rawt.append(smartcard.tostring());                  } catch (runtimeexception ex) {                      ex.printstacktrace(system.err);                  }                  log.d("fhd_dbg","");              } else if (conn != null) {              rawt.append(new sasc.iso7816.atr(conn.getatr()).tostring());              }          }  }

i received same problem, java.lang.classnotfoundexception: javax.smartcardio.terminalfactory. because javax.smartcardio.* not available in java environment comes android java compiler, available in jre.