Google recommends mobile app developers to encrypt data that their apps generate on the users’ devices. Google also recommends using an easy-to-implement security library available as part of its Jetpack software suite. The open-sourced Jetpack Security (aka JetSec) library lets Android app developers easily read and write encrypted files by following best security practices, including storing cryptographic keys and protecting files that may contain sensitive data, API keys, OAuth tokens. Google is also recommending that app developers should combine encryption with biometric information for added security.
Source: https://thehackernews.com/2020/02/android-app-data-encryption.html