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Questions tagged [android-biometric-prompt]

For questions about Android's BiometricPrompt API feature used for biometric authentication.

Reference:

211 questions
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Some Questions about BiometricPrompt on Android

I'm trying to figure out how to modify (if it's possible) the normal behavior of biometricPrompt, in particular i want to display Gandalf, when the authentication fails. I'm currently displaying it with a custom alertDialog, but it remains in…
davide Colombo
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android biometric USB fingerprint authentication tutorial

I have a biometric USB fingerprint sensor for android devices. I want to develop an application that reads a user's fingerprint via sensor and store it into an SQLite database so that it can be verified when the user login. So, Are there any…
Hikmat Mohammed
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Android Biomectrics fingerprint scanner for user search

currently i am looking to see if i can use in android the fingerprint scanner to find user's. for example using android firebase to authenticate users, then by using the fingerprint to search for the specific users that will show their…
user1868185
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How to dismiss the BiometricPromptDialog after timeout in android?

I'm creating an authentication service where the user must use the fingerprint sensor of the smartphone. I saw that android uses the BiometricPrompt APIs, but there's only one problem: I don't know how to set a timeout that dismisses the dialog…
AndyShoes
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java.lang.NoSuchMethodError error for setDeviceCredentialAllowed()

I am trying to create an authentication system for my App. When I compile the code, Android Studio throws the following error java.lang.NoSuchMethodError: No virtual method…
atulvinod1911
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Authenticating with AndroidX biometric latest version causes crash [Android]

When using the androidx biometric library's latest version I got following error which caused the app to crash App crashed when calling BiometricPrompt's authenticate method. androidx.biometric:biometric:1.0.0-beta01 Running on device and emulator…
Quantum_VC
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initialize BiometricPrompt in API 29

I am trying to add fingerPrint authentication in my application with the use of BioMetricPrompt of API level 29. I follow some code for that but most of the available codes are for the lower-level API. In API 29, BiometricPrompt class has big…
Pranav P
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How to show system password option if Biometric authentication failed?

I have added Biometric Prompt in my Android app. So on app start, I am able to show prompt and if success is able to redirect user on the Dashboard screen. In case user failed I want to show System password as a secondary option to authenticate. How…
sagarchavan
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Can I customize failure messages in Biometric prompt?

I am implementing BiometricPrompt in my app, everything is fine except that I am not able to change some failure messages. BiometricPrompt class provide methods to change the title, subtitle, description and negative button. Check code below: …
Mazen Youniss
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BiometricPromptCompat: How to Handle Authentication After onSaveInstanceState()?

I'm working on implementing biometric authentication using BiometricPromptCompat in my Android app. I've come across an issue where I'm getting an error message: "BiometricPromptCompat E Unable to start authentication. Called after…
DeveloperDotLalit
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Biometrics: Displaying error message if face recognition is considered weak

An app I came across shows the following error "This app doesn't support face recognition for verifying your identity. Use your fingerprint sensor instead" when tried to use Biometric face recognition when face recognition in the device is weak.…
abhishek maharajpet
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Biometric Dialog

So, I wanted to integrate Biometeric Dialog similar to that in my android app. I was following google android docs. Here's the Link to the documentation. But I think this is for fingerprint authentication only. How to get both icons in same dialog?…
Darpal
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How can I implement Biometric API in Android?

I want to use biometrics or password to lock/unlock images in my app. Biometric API can detect the biometrics but the "use password" option take the device's pin/password. I want the user to enter a password in-app and any password he wants.
Umer Maqsood
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Android Biometric Authentication return "unique id" and encrypt with it

i am having problem. I have searched google for biometric authentication but all example apis just returns me "authentication success" with boolean…
Kadir BASOL
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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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