Получение информации QR-Code (чеке)

package com.example.scanner
 
import android.annotation.SuppressLint
import android.os.Bundle
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import com.journeyapps.barcodescanner.ScanContract
import com.journeyapps.barcodescanner.ScanIntentResult
import com.journeyapps.barcodescanner.ScanOptions
 
 
class MainActivity : AppCompatActivity() {
    @SuppressLint("MissingInflatedId")
 
    lateinit var textView: TextView
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
 
        textView = findViewById(R.id.textView)
 
        findViewById<Button>(R.id.buttonScan).setOnClickListener {
            barcodeLauncher.launch(ScanOptions())
        }
    }
 
    // Register the launcher and result handler
    private val barcodeLauncher = registerForActivityResult<ScanOptions, ScanIntentResult>(
        ScanContract()
    ) { result: ScanIntentResult ->
        if (result.contents == null) {
            Toast.makeText(this@MainActivity, "Cancelled", Toast.LENGTH_LONG).show()
        } else {
            Toast.makeText(
                this@MainActivity,
                "Scanned: " + result.contents,
                Toast.LENGTH_LONG
            ).show()
 
             textView.text = result.contents
        }
    }
}