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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).

323 questions
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How to secure pre marshmallow application crashings

I am making an application that contains a part of activities that can be executed on pre marshmallow devices and some part of activities on marshmallow and above. So what I want to do is don't let the application crash on pre marshmallow device…
champion
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Android fingerprint API - migrating from Samsung Spass

Suppose I have an application which uses fingerprints to authenticate users. On Android 5 I used the Samsung Spass library only for Samsung devices. With Android M release I add support to many devices. First of all I check if I'm Android M, then if…
Evgeniy Mishustin
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Method failed to loop in onStart() and onCreate() thread

I'm following this tutorial.Right now, I'm trying to loop the fingerprint authentication part so that I can keep reauthenticate user fingerprint. I've tried to use thread in onStart() and onCreate() to while loop the authentication but the app is…
Cliff
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1 answer

How To Repeatedly Authenticate FingerPrint in onCreate()

This basic Android tutorial app is going to print a Toast message verifying the fingerprint authentication. But it is only able to authenticate once. I want it to be able to reauthenticate fingerprint whenever the app is still running. I've tried to…
Cliff
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1 answer

Android "KeyPermanentlyInvalidatedException" on simulator restart

Without adding or removing fingerprints, which I know invalidates the key, restarting the android simulator does the same. I haven't been able to find any information on this. Are keys invalidated on device restart? That would be really…
Deivi Taka
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1 answer

Android fingerprint API - ask for a password on fingerprint failed

While using Samsung Fingerprint Spass Apis for Android I had an option(to be honest I was forced to) to ask the user for password, if fingerprint authentication was failed. Now, when Android M provide us with native FingerPrint API I can't find way…
Evgeniy Mishustin
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1 answer

How to configure Finger Print using api in android?

I would like to know that how can we support to configure finger print using Finger print api. I want to develop app from which user can configure his/her finger not from device setting. Step: 1. Configure finger print from application. 2. Confirm…
Bhavik Goswami
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Finger Scanner not working in Android

I am new to android application development. I want to know from which API finger scanner support? Now I want to develop an app which include finger scanner. Testing on LeTv device and it would crash at KeyGuard Manager class.
Shirish Kulkarni
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Need FingerPrint scanning for those which have that feature and for rest it should not display that option

I am trying to display fingerprint unlock in my application! I am using the following sample [1]: https://github.com/googlesamples/android-FingerprintDialog It works but unable to get it into my code! Im getting compile error for…
Adithya.K
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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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1 answer

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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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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1 answer

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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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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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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