Smart OTP Field

A beautiful, customizable Flutter OTP input package with controller support, theme customization, auto focus handling, completion callbacks, and resend timer.

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✨ Features

• 🔢 Beautiful OTP input boxes
• 🎯 Auto focus next / previous
• 🎛 OTP controller support
• 🎨 Custom theme support
• 📞 onChanged callback
• ✅ onCompleted callback
• 🔄 Resend timer widget
• 🧹 Clear OTP programmatically
• 📱 Android & iOS support
• 🚀 Easy integration

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📦 Installation

Add dependency in pubspec.yaml

dependencies:
  smart_otp_field_plus: ^1.0.1

Run:

flutter pub get

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🧩 Full Example

import 'package:flutter/material.dart';
import 'package:smart_otp_field_plus/smart_otp_field_plus.dart';

class OtpScreen extends StatelessWidget {
  OtpScreen({super.key});

  final OtpController controller = OtpController(length: 6);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text("OTP Verification")),
      body: Padding(
        padding: const EdgeInsets.all(20),
        child: Column(
          children: [
            SmartOtpFieldPlus(
              controller: controller,
              length: 6,
              onCompleted: (otp) {
                print("OTP Entered: $otp");
              },
            ),

            const SizedBox(height: 20),

            ResendTimer(
              seconds: 30,
              onResend: () {
                print("Resend OTP");
              },
            ),

            const SizedBox(height: 20),

            ElevatedButton(
              onPressed: () {
                print(controller.value);
              },
              child: const Text("Submit"),
            ),
          ],
        ),
      ),
    );
  }
}

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⚙ Available Properties

SmartOtpField

Property	Type	Default	Description
length	int	6	OTP box count
controller	OtpController?	null	OTP controller
theme	OtpTheme	default	Custom UI theme
onChanged	ValueChanged<String>?	null	OTP change callback
onCompleted	ValueChanged<String>?	null	Called when OTP complete

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OtpController

Property	Description
value	Returns OTP string
clear()	Clears all boxes
isComplete	Checks OTP completion
dispose()	Dispose controllers

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OtpTheme

Property	Description
boxWidth	OTP box width
boxHeight	OTP box height
textStyle	OTP text style
decoration	Default box decoration
focusedDecoration	Focused box decoration

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📱 Platform Support

Platform	Support
Android	✅
iOS	✅

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📄 License

MIT License

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🤝 Contributing

Pull requests are welcome.

If you find bugs or want improvements, feel free to open an issue.

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⭐ Support

If you like this package, give it a star on GitHub.