Account Authenticator for Android to store sensitive information in the OS using Account Manager
The app is just a model to demonstrate the working of a custom account authenticator.
The databse used here is a local one (Realm) but in reality, we'll be using API endpoints for registration/sign in.
On successful execution, you'll be able to see the app under Settings->Account in Android.
Install the apk file in the Android Device to view the sample.