Psiphon Library for Android enables you to easily embed Psiphon in your Android app. The Psiphon Library for Android is implemented in Go and follows the standard conventions for using a Go library in an Android app.
Follow Go Android documentation:
gomobile bind -target=android github.com/Psiphon-Labs/psiphon-tunnel-core/AndroidLibrary/psi
-ldflags argument to gomobile bind.psi.aarpsi.aar from source or use the binary releasepsi.aar to your Android Studio project as described in the gomobile documentation