Snippets of my works

rfidreader.kt

// observer creation
 rxObserver = object: RXObserver(){
            override fun onInventoryTag(tag: RXInventoryTag?) {
                val result = tag?.strEPC?.replace(" ", "")
                if (result != null) {
                    webView?.evaluateJavascript(
                        """
                    var inputNewRecord = jQuery("#records-rfid")
                    var inputSearch = jQuery("[name='RecordsSearch[rfid]']")
                    
                    var requiredInputs = [inputNewRecord, inputSearch]
                    requiredInputs.forEach(jObj => {
                        if (jObj.length > 0){
                            jObj.val('$result')
                        } else {
                            console.log("hello world")
                        }
                    })
                """.trimIndent(), null
                    )
                }
            }

            override fun onInventoryTagEnd(tagEnd: RXInventoryTag.RXInventoryTagEnd?) {
                super.onInventoryTagEnd(tagEnd)
            }
        }

 // create connection
  try {
            if (connector.connectCom("dev/ttyS4", 115200)){
                ModuleManager.newInstance().setUHFStatus(true)
                try {
                    mReader = RFIDReaderHelper.getDefaultHelper()
                    mReader?.registerObserver(rxObserver)
                    mReader?.setTrigger(true)
                } catch (e: Exception){
                    e.printStackTrace()
                }
            } else {
                Log.w(TAG, "RFID Connection failed" )
            }
        } catch (e: Exception){
            Log.w(TAG, "Error connection to RFID", e)
        }
  
  // latest webview implementation and my changes to add realTimeInventory mehtod when do in list of records and create records
  webView?.webViewClient = object : WebViewClient() {
            override fun onPageFinished(view: WebView?, url: String?) {
                if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
                    CookieManager.getInstance().flush();
                } else {
                    CookieSyncManager.getInstance().sync();
                }
                endLoaderAnimate()
                Log.i("url login view activity",url)
                if(intent.extras !=null && intent.extras!!.containsKey("isFromNotification")){
                    return;
                }
                if(url !=null && url.startsWith("https://herdsafe.com/webUI/")){
                    if(url.contains("logout")){
                        clearCookies(this@LoginWebViewActivity)

                    }else if(!url.contains("web/site/login"))
                    {
                        toolbar11.visibility = GONE
                        val sharedPreference =  getSharedPreferences("login", Context.MODE_PRIVATE)
                        sharedPreference.edit().putBoolean("isLogin",true).commit();
                    }else{
                        toolbar11.visibility = View.GONE
                    }

                    if (url.contains("web/records/index") || url.contains("web/records/create")) {
                        mReader?.realTimeInventory(0xff.toByte(), 0x01.toByte())
                    } else {
                    }
                }
                //webView.loadUrl("javascript:(window.token='${fcmToken}';alert(window.token) )()")
            }

            override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
                return super.shouldOverrideUrlLoading(view, request)
            }


        }

Hello! Do you have library for this code? Can u help me pls