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Android 6 Essentials

You're reading from   Android 6 Essentials Design, build, and create your own applications using the full range of features available in Android 6

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Product type Paperback
Published in Dec 2015
Publisher Packt
ISBN-13 9781785884412
Length 122 pages
Edition 1st Edition
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Author (1):
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Yossi Elkrief Yossi Elkrief
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Yossi Elkrief
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Toc

The Fingerprint authentication API


Android Marshmallow now allows us, the developers, to authenticate users with their fingerprint scans when using such authentication scanners on supported devices.

The Fingerprint API was added to Android Marshmallow via a whole new package:

android.hardware.fingerprint

The package contains four classes:

  • FingerprintManager

  • FingerprintManager.AuthenticationCallback

  • FingerprintManager.AuthenticationResult

  • FingerprintManager.CryptoObject

Each class has a specific role in our fingerprint authentication process.

How do we use fingerprint authentication?

The preceding four classes of the android.hardware.fingerprint package can be explained in the following manner:

  • FingerprintManager: Manage access to fingerprint hardware

  • FingerprintManager.AuthenticationCallback: Callback used in the auth process

  • FingerprintManager.AuthenticationResult: Result container for auth process

  • FingerprintManager.CryptoObject: Specific Crypto object to use with FingerprintManager

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