Class FingerprintUserVerifierAbstract

The user verification interaction.

In the case of the registration the user must provide credentials again as required by the FIDO UAF protocol. In the case of the authentication, this is invoked for the user to provide credentials. If there is a recoverable error during the verification, this method will be invoked again, and the FingerprintUserVerificationContext.lastRecoverableError will contain the error. The recoverable error can be used to inform the user of the recoverable error that occurred, because the UI is the responsibility of the developer using the SDK. The operation must be canceled.

This method is invoked when either valid fingerprint credentials were provided and verified locally.

The method is invoked after verifyFingerprint has been invoked and FingerprintUserVerificationHandler.listenForOsCredentials is invoked in the FingerprintUserVerificationHandler of verifyFingerprint and the end-user provides valid biometric credentials.

This method can be used for instance to hide the UI used to ask for credentials to the user (some screen asking the user to use the fingerprint sensor) and then display some progress message indicating that the operation is ongoing.

Note that invoking this method does not mean that the UAF operation completed successfully (this is notified through onSuccess methods once the FIDO UAF server validates the request generated with the credentials).