Younes-Charfaoui

private lateinit var sensorManager: SensorManager

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    // initializing the sensor manager
    sensorManager = getSystemService(Context.SENSOR_SERVICE) as SensorManager

    // getting the list of all the availabale sensors in the current device

Younes-Charfaoui

class MainActivity : AppCompatActivity() {

    private lateinit var fotoapparat: Fotoapparat
    private lateinit var barcodeScanner: BarcodeScanner

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        initializeBarcodeScanner()

Younes-Charfaoui

private fun scanImageForBarcode(it: BitmapPhoto) {
      val inputImage = InputImage.fromBitmap(it.bitmap, it.rotationDegrees)
      val task = barcodeScanner.process(inputImage)
      task.addOnSuccessListener { barCodesList ->
          for (barcodeObject in barCodesList) {
              val barcodeValue = barcodeObject.rawValue
              Log.d("Barcode", "The code %s".format(barcodeValue))
          }
      }
      task.addOnFailureListener {

Younes-Charfaoui

private lateinit var barcodeScanner: BarcodeScanner
        
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    val options = BarcodeScannerOptions.Builder()
                    .setBarcodeFormats(
                         Barcode.FORMAT_EAN_13,
                         Barcode.FORMAT_QR_CODE

Younes-Charfaoui

private fun takeImage() {
    fotoapparat.takePicture()
               .toBitmap()
               .whenAvailable { picture ->
                    scanImageForBarcode(picture!!)
                }
}

private fun scanImageForBarcode(picture: Bitmap){
    // handle and scan the picture for barcode

Younes-Charfaoui

private lateinit var fotoapparat: Fotoapparat

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
  
    fotoapparat = Fotoapparat.with(this)
            .into(cameraView)
            .previewScaleType(ScaleType.CenterCrop)
            .build()

Younes-Charfaoui

<io.fotoapparat.view.CameraView
    android:id="@+id/cameraView"
    android:layout_width="match_parent"
    android:layout_height="400dp"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

Younes-Charfaoui

override fun onStart() {
    super.onStart()
    fotoapparat.start()
}

override fun onStop() {
    super.onStop()
    fotoapparat.stop()
}

Younes-Charfaoui

private val CAMEREA_REQUEST_ID = 1144

private fun isCameraPermissionGranted(): Boolean {
    return (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
            == PackageManager.PERMISSION_GRANTED)
}

private fun requestCameraPermission() {
    ActivityCompat.requestPermissions(
        this,

Younes-Charfaoui

dependencies {
    /* other dependencies
    .....*/
  
    //ml kit barcode
    implementation 'com.google.mlkit:barcode-scanning:16.0.1'

    // fotoapparat library
    implementation 'io.fotoapparat:fotoapparat:2.7.0'
}