Qr Scanner Module 
At #Inmersoft we have used the Google MLKit library several times to read QR codes, it is very powerful and versatile. After several projects reintegrating this library, I decided to isolate it in a separate module that would allow me a better integration. It
Add Jitpack.io
maven { url 'https://jitpack.io' }
Add dependecie
implementation 'com.github.orlando-dev-code:qr-scanner-module:v1.0.1'
See the sample
Sample code: https://github.com/orlando-dev-code/qr-scanner-module/tree/master/app
Sample
@Composable
fun App() {
val qrResult = rememberSaveable { mutableStateOf("") }
val launchQrReader = rememberLauncherForActivityResult(QrActivityResultContract()) { barcoderaw ->
qrResult.value = barcoderaw
}
Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
Column {
Text(qrResult.value)
Button(onClick = {
launchQrReader.launch(0)
}) {
Text("Start QrReader")
}
}
}
}
class QrActivityResultContract :
ActivityResultContract<Int, String>() {
override fun parseResult(
resultCode: Int, intent: Intent?
): String {
return if (resultCode == Activity.RESULT_OK) {
return intent?.getStringExtra("QR_SCANNER_RESULT") ?: ""
} else {
""
}
}
override fun createIntent(context: Context, input: Int): Intent {
return Intent(context, QrActivity::class.java)
}
}