Call function result from different activity on android studio

I found a tutorial online for creating a QR Code Scanner App for Android. It works great but the output of the scan is a toast notification as you can see in the code:

 override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    if (resultCode == Activity.RESULT_OK) {
        val result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data)
        if (result != null) {
            if (result.contents == null) {
                Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show()
            } else {
                Toast.makeText(this, "Scanned: " + result.contents, Toast.LENGTH_LONG).show()
            }
        } else {
            super.onActivityResult(requestCode, resultCode, data)
        }
    }
  }
 }

What i would like to do is for the scanned code to launch the url inside the app itself. As I want the pages to be hosted in the app itself, what i've done was create an actvity with the webview that loads the internal html page.

I took the scanner code and changed the positive outcome to open the webview activity :
startActivity(Intent(this, PagInfoActivity::class.java))

Which works fine. Anytime a QR Code is detected the app automatically loads the desired activity. I know this is not ideal, as the QR Code link itself is not being used to open the page, but what I was trying to do was to use that scan result on the webview load. I've created QRCodes with text strings instead of URLs so that i could inject them in the loadURL of the webview like this:

WebView.loadUrl("file:///android_asset/*QRCODE string*.html");

Is it possible to call result.contents from the MainActivity?

There are multiple ways you can achieve this. First option can be Explicit Intents
For Example,
You need to pass it as an extra:

Intent i = new Intent(this, PagInfoActivity.class);
i.putExtra("result", result.contents);
startActivity(i);

Then extract it from your PagInfoActivity like this:

Intent intent = getIntent();
String result= intent.getExtras().getString("result");