How to require fingerprint to download apps android

To add items to your Secure Folder, tap the Add apps or Add files icon in the folder, then select the desired items. Vivo was talk of the tech world 12 months ago, when it showed off the first production phones with an in-display fingerprint sensor. Naturally, the phones let you hide apps and files behind a biometric safe too.

Xiaomi is another manufacturer offering deeper fingerprint locking functionality in its Android skin. To enable fingerprint app lock, all you have to do is visit the Security app then tap the App lock icon. Need to hide specific files? You can then browse through your files in order to select the desired item. One of the more feature-packed apps of its kind, LOCKit is a one-stop hub for locking your apps, photos, and videos. And in a neat touch, it offers the ability to take snaps of people trying to access locked goodies.

Getting started is pretty easy, as you grant it the required permissions drawing over other apps , set a PIN, and create a security question. You can see a locked app in the recents menu. However this seems to only be the case for a few third-party apps. The method is quite simple and straight and you just need to follow the simple step by step guide discussed below to proceed.

You tap on ok and get the free app from the play store. Now tap on Encryption and under encrypt or decrypt you need to choose Decrypt and then you need to enter the password in the password section. Then look for encryption, inside encryption Tap on Encrypt or Decrypt and select Encrypt this time. It handles backward compatibility and gives a common platform to integrate fingerprint scanner in your code. This will decrease the amount of boilerplate code which the developer has to write and gives easy to use basic all-backs to handle authentication process and errors.

The next steps is getting to the Android keystore and generate the key to encrypt the data. The app does it in a different strategy called generateKey. Notice that you need to specify the usage of the key: encrypt and decrypt and that the confirmation is required to use the key itself. The last step is creating the call-back with the goal that you can getevent notification and know when the authentication succeeded or something went wrong.

This ensures your app is never installed on a device running a version of Android that pre-dates fingerprint authentication. However, the Android operating system runs on a wide range of devices, and not every one of these devices includes a touch sensor.

You can declare that your app requires a touch sensor in order to function, by adding the following to your Manifest:.

If your app can function without a fingerprint sensor then you should mark the touch sensor as preferred, but not required:. If you do opt for this approach, then your app will need to check for the presence of a touch sensor at runtime and then disable its fingerprint authentication features, where appropriate. Certain permissions make implicit hardware requests, for example if you add the android. You may also want to provide the user with an alternative method of confirming their identity, for example by giving them the option to create a password and username.

If all of these conditions are met, then your app is ready to start the fingerprint authentication process. Our final task is creating the helper class that we referenced in our MainActivity file. This class will be responsible for triggering the authentication method and processing the various callback events that can occur depending on whether the authentication has succeeded, failed, or an error has occurred. First, make sure your Android smartphone or tablet is configured to support fingerprint authentication by securing your lockscreen with a PIN, password or pattern and then registering at least one fingerprint on your device.

The app will then display various toasts depending on whether the authentication succeeds, fails, or an error has occurred.