Unlock Mobile app Using biometrics

This Document describes on how to unlock mobile app using Okta Classic Engine but I dont find the document for this topic on Okta Identity Engine.Can someone let us know the on how to unlock the mobile app using the OIE usage.

Hello,
Assuming you are using the latest version of the IDX sdk

Have you checked if the following would meet your needs:
https://okta.github.io/okta-mobile-swift/development/authfoundation/documentation/authfoundation/credential
https://okta.github.io/okta-mobile-swift/development/authfoundation/documentation/authfoundation/credential/security/

So when storing credentials you can do something like:

try Credential.store(token,
                     tags: ["displayName": "My User"],
                     security: [
                         .accessibility(.afterFirstUnlock),
                         .accessControl(.biometryAny),
                         .accessGroup("com.example.myApp.shared")
                     ])

If more advanced cases are needed custom TokenStorage and CredentialDataSources can be implemented.