Forces application verification to use the web reCAPTCHA flow for Phone Authentication.

Once this has been called, every call to PhoneAuthProvider.verifyPhoneNumber(PhoneAuthOptions) will skip the Play Integrity API verification flow and use the reCAPTCHA flow instead.

Calling this method a second time will overwrite the previously passed parameter.

Disables application verification flows for Phone Authentication and Phone Multi-Factor flows. Intended for use with the phone numbers configured in the Firebase Console for testing (Authentication > Sign In Method > Phone), or with the Firebase Auth emulator.

Once this has been called, every call to PhoneAuthProvider.verifyPhoneNumber(PhoneAuthOptions) will skip the Play Integrity API and reCAPTCHA verification flows.

Calling this method a second time will overwrite the previously passed parameter.

The phone number and SMS code here must have been configured in the Firebase Console (Authentication > Sign In Method > Phone).

Once this has been called, every call to PhoneAuthProvider.verifyPhoneNumber(PhoneAuthOptions) with the same phone number as the one that is configured here will have PhoneAuthProvider.OnVerificationStateChangedCallbacks.onVerificationCompleted(PhoneAuthCredential) triggered as the callback.

Calling this method a second time will overwrite the previously passed parameters. Only one number can be configured at a given time.

Calling this method with either parameter set to null removes this functionality until valid parameters are passed.

Verifying a phone number other than the one configured here will trigger normal behaviour. If the phone number is configured as a test phone number in the console, the regular testing flow occurs. Otherwise, normal phone number verification will take place.

When this is set and PhoneAuthProvider.verifyPhoneNumber(PhoneAuthOptions) is called with a matching phone number, PhoneAuthProvider.OnVerificationStateChangedCallbacks.onCodeAutoRetrievalTimeOut(String) will never be called.