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I need finger print authentication in my app. I have no idea about this, so my question is:- How to connect bio-metric device through USB or Bluetooth and integrate it with my app so that user can scan finger print on that device and my app can receive it as image.

Nishant Bhardwaz
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  • Have a look at [this](http://www.techotopia.com/index.php/An_Android_Fingerprint_Authentication_Tutorial) , [this](http://willowtreeapps.com/blog/android-fingerprint-apis-an-overview-for-android-app-developers/) , [this](https://www.captechconsulting.com/blogs/introducing-androids-fingerprint-api) and [this](http://stackoverflow.com/questions/29276026/using-androids-fingerprint-scanner-for-application) – Jaydroid Nov 17 '16 at 04:24
  • @Jaydroid thanks , but I have gone through these links. for http://www.techotopia.com/index.php/An_Android_Fingerprint_Authentication_Tutorial if (initCipher()) { cryptoObject = new FingerprintManager.CryptoObject(cipher); FingerprintHandler helper = new FingerprintHandler(this); helper.fingerprintHandler(fingerprintManager, cryptoObject); } above code is having error kindly suggest. – Nishant Bhardwaz Nov 17 '16 at 06:57

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