Make the library compatible with Instant Apps

[AndreasBoehm]

Due to some restrictions applied to Instant Apps the fingerprint library crashes when the instance is created.

Adjustments:

• check if externalStorageDir is readable before trying to access it, would crash otherwise
• made DevicePolicyManager and KeyguardManager optional, would crash otherwise
• remove unnecessary build version code check

[Alexey-Verkhovsky]

Great changes! Thank you for highlighting the problem. ❤️ I merge it, and will release the changes in the version 1.2.1 in the nearest future.

[MarvinSchramm]

ez

[AndreasBoehm]

Hi @Alexey-Verkhovsky could you let me know a rough ETA for release 1.2.1, we would really like to use this library in our Instant App.

[Alexey-Verkhovsky]

Hey! If you mean changes that prevent crashes – you can integrate the library by sources, or as git submodule.
We plan to research instant app behaviour during the next week, so fixes and release will be after.

[AndreasBoehm]

Hi @Alexey-Verkhovsky,

do you have an update on the ETA for a release that contains the Instant App fixes?
I don't want to mess around with submodules or compile my own version of the library to be honest.

[Alexey-Verkhovsky]

Hi @AndreasBoehm! I released the new version with fixes you prepared, so just update version.

In your module, in the build.gradle file change
implementation "com.github.fingerprintjs:fingerprint-android:1.2" to
implementation "com.github.fingerprintjs:fingerprint-android:1.2.1"

[AndreasBoehm]

Thanks a lot @Alexey-Verkhovsky !