[BUG] OTP Autofill Not Detected While Phone Number is Detected

Expected Behavior

The OTP autofill feature should detect and automatically populate the OTP code when it is received.

Actual Behavior

The phone number is detected successfully, but the OTP is not automatically detected or populated in the app. I tried both startListenUserConsent and startListenRetriever

Steps to Reproduce

Set up OTP autofill using OTPTextEditController.
Phone number detection works as expected.
Receive OTP but it is not detected or autofilled into the OTP input field.

Details

Flutter version: Channel stable, 3.24.1
Platform: Android/iOS
macOS version: macOS 14.6.1 (23G93 darwin-arm64)
Android Studio: version 2024.1
Xcode version: 15.4
VS Code version: 1.92.2
Android SDK version: 32.1.0-rc1

Sample SMS

Your Firebase App verification code is 123456 signature_code_here

Full Code

class PhoneDetector {
  final OTPInteractor _otpInteractor = OTPInteractor();
  late OTPTextEditController controller;

  void detectPhoneNumber() {
      _otpInteractor.hint.then(phoneDetector);
  }

  void getSignature() {
      _otpInteractor.getAppSignature().then((signature) {
        debugPrint('Your app signature:$signature');
      });
  }

  void phoneDetector(String? value) {
      final _phone = value.getMobileNumberAuto(countryCode);
  }

  void listenForCode() {
      controller = OTPTextEditController(
        codeLength: 6,
        onCodeReceive: (code) {
          if (code.isEmpty) return;
          codeUpdated(code);
        },
        otpInteractor: _otpInteractor,
        onTimeOutException: () {
          controller.startListenRetriever(
            (code) {
              final exp = RegExp(r'(\d{6})');
              return exp.stringMatch(code ?? '') ?? '';
            },
          );
        },
      )..startListenRetriever(
          (code) {
            final exp = RegExp(r'(\d{6})');
            return exp.stringMatch(code ?? '') ?? '';
          },
        );
  }

  // @override
  void codeUpdated(String code) {
      debugPrint('SMS AUTOFILL CODE:$code');
  }

  void detectorDispose() {
      controller.stopListen();
  }
}

What Did You Try to Solve

Verified that phone number detection works.
Checked the listenForCode method implementation.
Attempted changing configurations and testing on different devices.

Checklist for Self-Check

[x] Added expected and actual behavior.
[x] Added an isolated way to reproduce the bug.
[x] Specified Flutter, Dart version, and platform.
[x] All unspecified fields in the issue description are deleted.

surfstudio / flutter-otp-autofill

[BUG] OTP Autofill Not Detected While Phone Number is Detected #100