Questions regarding the use of the Fingerprint Authentication API, introduced in Android 6.0 Marshmallow (API level 23).
Questions tagged [android-fingerprint-api]
323 questions
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votes
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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votes
1 answer
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…
Ravi
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votes
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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votes
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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- 3
-3
votes
1 answer
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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votes
1 answer
Register user fingerprint in android application
Is it possible to register user's fingerprint in an android application (not in settings)and store it in the database and later use the database for authentication?
Rohit Saroha
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-4
votes
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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votes
2 answers
How to use android fingerprint API to read all the fingerprints?
Am developing an android application that will be used in a single device to register all the employee with their fingerprint and to send the data back to the da.
I have developed an application as Guided Here which can read the fingerprint. But it…
eli
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