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Questions tagged [android-fingerprint-api]

Questions regarding the use of the Fingerprint Authentication API, introduced in Android 6.0 Marshmallow (API level 23).

318 questions
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Can we use android fingerprint scanner to get finger pattern and store that pattern somewhere else?

I want to use android fingerprint scanner to store fingerprints of my own in my android application not in device OS and later I want to compare them. and use them for other purposes. If there is a way to use android fingerprint scanner like this…
Ali
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Rotate fingerprint using Morpho SDK

I am using MOrpho sdk to capture the finger print but i have an issue where some of the devices are capturing the fingerprint in reverse layout (meaning the capture image should be from left and right but it is capturing in right to left), so what i…
angelina
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How to create multiple fingerprint scan and register in db?

I want to create an app to register a new fingerprint and add more fingerprint and authenticate in same app, but i am able to authenticate only one with the hardware supported fingerprint only. So my requirement is: Register fingerprint as an image…
AVIRAL SINGH
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2 answers

Is there any way that we can get idea about the Finger details of Fingerprint authentication?

I am developing one application, in that application i want to add some restriction based on Finger print login. Let's assume i have added two Fingerprint in my device. 1) Left hand index finger 2) Right hand index finger Is there any way so i…
Chirag
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How to get the finger print result with-out authenticating from Fingerprint-manager?

I want to use the fingerprint scanner(default in android M device), but I don't want to use any authentication, I just want to take the result of the finger and send that result to middle-ware.Is it possible with the default fingerprint scanner or…
Hanuman
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2 answers

How to Generate Key and Chiper initiation below Android API 23?

Am Using Fingerprint Authentication for App. Want to Support for below API 23 also. For that am Using FingerprintManagerCompat. I don't know how to Generate Key and Chiper initiation in Pre-Android API 23. Below Code am Used for API 23 - Generate…
Yugesh
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2 answers

Android Fingerprint Scanner Api

I want to use Android Finger Print Scanner API in my Android application.But as I am I found, I need to have android marshmallow OS to use this feature. I also downloaded sample app from android official site, and they have also mentioned min…
Jay Vyas
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1 answer

Jetpack's BiometricPrompt (androidx.biometric.BiometricPrompt) throws NullPointerException

I'm using androidx.biometric:biometric:1.0.0-alpha03 in a test project and when pushing the negative button I always get the following error message: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.CharSequence…
luckyhandler
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Android how to access fingerprint from external bio-metric device?

For above version SDK 23 using permissions I am able to fetch result from fingerprint using external biometric device. //Get an instance of KeyguardManager and FingerprintManager// keyguardManager = (KeyguardManager)…
Android
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How do I make app : in which authentication is based on fingerprints that are not saved on device?

I just ran the Google Sample, FingerprintDialog (this). And saw that it asks for fingerprint to complete an purchase. Its Okay, Working fine. But it uses my fingerprints saved on my device for screen unlocking. What I want- Welcome the user and ask…
Fghj
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1 answer

fingerprint not working after new fingerprint addition

I've successfully established fingerprint authentication in my app. However, when i add new fingerprint in my android settings, the fingerprint sensor does not respond in my app (scanner still works correctly for unlocking my phone). Am i missing…
oleg.v
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1 answer

Fingerprint scanner in Android

Android phones use Capacitive and Ultrasonic fingerprint scanners for phone and application locks. But where these fingerprint data are getting stored is it within the phone or in Cloud and is it possible to extract the fingerprint template data…
Raja_Viki
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1 answer

Use fingerprint Scanner in Android phones to read and process data

I want to read the fingerprint data(multiple fingerprints) using the fingerprint scanner on my phone and store this data uniquely on the cloud. Then using this stored data I want to create a Login Activity type of thing which uses the fingerprint…
Prakhar Jaiswal
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1 answer

How to pass an activity in BiometricPrompt object in android

In my mobile application, I have created a separate class file to implement the BiometricManager and BiometricPrompt to use the fingerprint authentication. I have to trigger the Biometric popup in three activities, so I created a common function in…
raghavendra rao
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Using the Fingerprint Scanning hardware on Android devices to check multiple user's thumbprints against network connected database

I would like to use the built-in Fingerprint scanner on Android devices, or most Android devices, to scan the actual fingerprint image or data into my Android app, then send the fingerprint image or data to an API over the internet backed by a…
blueuser
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