Android Fingerprint Authentication

There are a number of ways to authenticate a user to access an application, or a certain feature within an application, such as checkout, and fingerprint is one of them. For this post instead of going through the code step by step, i have added in-code comments, and will be letting the code speak for itself.

First things first, the permission.

The good thing is that we do not need to ask for this permission at runtime.

This project only has one activity, the MainActivity. Lets take a look at the code.

There 2 helper classes used in the code above, lets start with the FingerPrintChecker.

Our FingerPrintHelper class

You can find the full source code HERE

Thats all for now, until next time!

If you have any questions don’t hesitate to contact me or leave a comment!


  1. matt

    can u be so kind and post project code 🙂 ?
    thats great tutorial, but i have some problems with run it

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