Finger print scanner for secret image

[Anil]

I'm working on a project finger scanning. I extended fingerprintsensor from

FingerprintSensor Extension

DISCLAIMER: This extension wasn't created nor is it endorsed by App Inventor or MIT. This extension was created by me @Ken for the users of App Inventor and it's distributions to use free of charge. This Extension will allow you to use Fingerprint Authentication in your app. It requires Android OS 6.0 API23 or newer to run and of course a device with a Fingerprint Sensor. Note: Currently this extension is not able to run in the Companion so you'll need to build a .apk to use it. Special T…

I kept an image on Horizontal Arrangement, made it visible to 'False'. My aim is to scan my finger print, by clicking on scan button. if its authenticated, image will be displayed, else will change the color of screen to red.
when i'm clicking 'SCAN' button, nothing is happening

I have a doubt, how can we set the right fingerprint, where the verification of two fingerprints i.e., correct one and wrong one is done. Please help

[dora_paz]

Try this modified aia, original was provided by the developer in FingerprintSensor Extension Modify code according to your needs. You should tested with apk not with companion

FingerPrintSensor_4.aia (488.3 KB)

[Anil]

I tested with apk only, its not working.

[dora_paz]

Try this one

FingerPrintSensor_5.aia (488.4 KB)

[Anil]

hi I tried this. it's saying "Failed to initialize finger print sensor. No enrolled finger prints".
how does it work

[dora_paz]

Fingerprint only performs the fingerprint verification already registered in the Smartphone (the same used in the lock screen)

[dora_paz]

An example

[Anil]

hey thank you so much. I got it. it worked