I have a fragment with an EditText and a couple of buttons.

One of the buttons allows the user to scan a barcode with the GmsBarcodeScanning library.

If successful, the scanned barcode shoould appear into the EditText, but I can’t get it to work.

The problem seems to be that after the onSuccessListener() the onCreateView() is executed and thus all the components are reset.

I think it must be simple, but I’ve spent hours and can’t find a solution.

class SelecComanda : Fragment() {

private var et_codi: EditText? = null
private var btn_scan: Button? = null
private var btn_next: Button? = null

override fun onCreateView(
    inflater: LayoutInflater, container: ViewGroup?,
    savedInstanceState: Bundle?
): View? {
    val root = inflater.inflate(R.layout.selec_comanda, container, false)
    et_codi = root.findViewById(R.id.editTextCodi)
    btn_scan = root.findViewById(R.id.boto_scan)
    btn_next = root.findViewById(R.id.button_second)
    return root
}

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)

    btn_next!!.isEnabled = false

    btn_next!!.setOnClickListener {
        // TODO
    }

    btn_scan!!.setOnClickListener {
        val options = GmsBarcodeScannerOptions.Builder()
            .enableAutoZoom()
            .build()
        val scanner = GmsBarcodeScanning.getClient(this.context!!, options)

        scanner.startScan()
            .addOnSuccessListener { barcode ->
                et_codi!!.setText(barcode.rawValue.toString())
                btn_next!!.setEnabled(true)
        }
        .addOnCanceledListener {
            // TODO
        }
        .addOnFailureListener { e ->
            // TODO
        }
    }
}

}

How could I recover the scanned barcode and put into the EditText?