According to Firebase documentation (https://firebase.google.com/docs/auth/android/phone-auth#send-a-verification-code-to-the-users-phone), there is callback
fo
Source: Github
This is the method used to resend SMS Verifications.
private void resendVerificationCode(String phoneNumber,
PhoneAuthProvider.ForceResendingToken token) {
PhoneAuthProvider.getInstance().verifyPhoneNumber(
phoneNumber, // Phone number to verify
60, // Timeout duration
TimeUnit.SECONDS, // Unit of timeout
this, // Activity (for callback binding)
mCallbacks, // OnVerificationStateChangedCallbacks
token); // ForceResendingToken from callbacks
}