private fun beginScanning() {
        try {
            tags.clear()
            val params = InventoryParams()
            params.ants = intArrayOf(1);
            params.inventoryMode = InventoryMode.MULTI_TAG_FAST;
            params.smartMode = Reader.IT_MODE.IT_MODE_CT;
            params.timeout = 50
            params.isReadTid = true;
            params.option = 10;

            UHFParamsOperator.getInstance().setGen2Session(2);
            UHFParamsOperator.getInstance().setGen2Target(2)

            val listener = ReadListener() { list ->
                list.forEach { tag ->
                    tags.add(ScannedTag(tag))
                }
            }

            val exListener = ReadExceptionListener() {
                fun tagReadException(err: Reader.READER_ERR) {
                    Toast.makeText(this, "Error in scanning: ${err.name}", Toast.LENGTH_SHORT).show()
                }
            }

            UHFEngine.getEngine().startInventory(params, listener, exListener);
            Toast.makeText(this, "Started Scanning", Toast.LENGTH_SHORT).show()
        } catch (err: Error) {
            Toast.makeText(this, "Error in stating scans: ${err.message}", Toast.LENGTH_SHORT).show()
        }

    }