docs: Add link to Android aar and update installation instructions

[jakubkoci]

I uploaded the Android .aar file to the Release 0.2.2, similarly we did with iOS dependency. Although the library still must be downloaded manually, it significantly simplifies the installation for Android.

[TimoGlastra]

Do you have any instructions on how to build the .aar file? Otherwise could we also keep the non-aar instructions in here?

[jakubkoci]

Yes, you can do it in the following way:

• In Android Studio, click File > New > New Module and select Android Library.
• The simplest way to add so files into an aar file is to create a folder jniLibs under src/main And then copy *.so files into the folder:

src/main/jniLibs/<abi>/*.so

• After building the module, you can open build/outputs/aar/*.aar to verify jni//*.so.
• Resources
  • Create an Android Library (AAR). Steps to create an Android library… | by Anusree Sajeevan | ProAndroidDev
  • Different Ways to Create aar File in Android Studio - GeeksforGeeks
  • How to Build *.so Library Files into AAR Bundle in Android Studio | Dynamsoft Developers

[TimoGlastra]

I think you can exclude those from the .aar as they'll be provided by the App's environment itself.

[TimoGlastra]

E.g. we exclude certain libs from the package for indy-vdr: https://github.com/hyperledger/indy-vdr/blob/main/wrappers/javascript/indy-vdr-react-native/android/build.gradle#L85-L87

[jakubkoci]

I can't build the project right now because of some security restrictions on my computer, but I'll look at it later.

[jakubkoci]

I see that I already had it in the Android module I used to build aar:

packagingOptions {
        excludes = ["**/libc++_shared.so", "**/libfbjni.so", "**/libjsi.so", "**/libreactnativejni.so", "**/libjscexecutor.so", "**/libhermes.so"]
    }

So, it seems it doesn't help

[TimoGlastra]

Okay. Let's do it!

[TimoGlastra]

Okay. Let's do it!