Android Firebase OTP Login

@deepbansal1111

Hi Deepak, I can integrate Firebase phone-number OTP authentication directly into your existing login screen without adding any extra screens or disrupting the current design language. The implementation will reuse your current UI components and flow, ensuring a smooth experience alongside your existing email/password and guest login paths. I’ll wire up Firebase Authentication’s SMS verification with full support for auto-retrieval where available, manual OTP entry everywhere else, resend handling, timeouts, and clear, user-friendly error states for invalid or expired codes. The focus will be on a secure, polished flow that feels native to your app rather than bolted on. Along with the working code, I’ll clearly document any required Gradle changes, SHA-1 configuration, and Firebase Console settings, so everything is transparent and easy to maintain. I’ll also include a short README or quick screencast showing the complete end-to-end flow running on an emulator or real device. Let me know how you’d like the handover delivered, and I can get started right away.

@mohjib092

Hello there, Very well knows what you looking for, Willing to assist you with this project and support until you satisfy Can you please come to the chat box so we can easily discuss in details, Thank you

@Riasatali78

I’m an experienced Android developer with hands-on expertise in Firebase phone OTP integration. I can embed the OTP flow directly into your existing login screen, ensuring smooth auto-verification, error handling, and full documentation within your budget.

@mukesh459

As an experienced Android developer, I've worked extensively with Firebase Authentication and Google Play services to deliver secure, efficient and user-friendly app functionalities. I understand configuring OAuth 2.0 client IDs, SHA-1 fingerprints and enabling Google Sign-In settings (web client ID) needed for your Firebase project. My familiarity with Flutter will streamline additional UI design or frontend changes. I take pride in building clean code that integrates seamlessly into existing projects, without any disruption or regression to other login paths. My vast experience on the Android SDK would be valuable in handling OTP auto-retrievals gracefully where supported and incorporating a smooth manual entry fallback. Rest assured, user experience is of paramount priority to me—I'll ensure all cases such as incorrect or expired codes are handled gracefully with user-friendly messages. Finally, let's talk budget and timeline constraints—I've been consistently recognized for punctual and quality delivery within set budgets. I'm excited to extend my assistance on your exciting endeavor! So, grab my hands-on expertise in Android, Java, Mobile App Development, Software Architecture coupled with my ethos of clarity, time management and post-delivery support for a successful project execution. Looking forward!

@NinjaIfti

Hi, Can you provide more details on your current login UI? To seamlessly integrate the OTP flow into your Android app, I’ll utilize Firebase Authentication to ensure a clean user experience without creating extra screens. I will manage the code to smoothly connect phone number sign-in, including auto-verification and error handling, while keeping your existing login aesthetic intact. I’ll also update the necessary gradle files and Firebase console settings, all documented for easy reference. Rest assured, I’ll ensure that no regressions to existing login methods occur. With over 5 years of experience in Android development and Firebase, I can deliver a clean pull request or zipped module swiftly. Let me know if you’d like to discuss further! Best Regards, Ifti

@umairdevlab

Hi, I've reviewed your project and completely understand your requirements. My 4+ years as a Flutter Developer and expertise in AI (Master's in AI, UMT) perfectly match your needs. I have proven experience with Indian market apps like Matka, UPI, DTH recharge, and doctor appointment systems. I deliver high-performance Android/iOS apps with robust backends (Firebase, Laravel, Node.js). My focus is on integrating intelligent AI features and providing custom AI solutions to make your project stand out. I prioritize dedicated collaboration to ensure precise results. Let's discuss how my skills can bring your vision to life for the Indian audience. Looking forward, Muhammad Umair

@sumanj555

Hello, Greetings! I’m a senior full-stack developer with 6+ years of experience in building scalable mobile and web applications. I specialize in cross-platform and native mobile development using Flutter, React Native, Swift (iOS), and Kotlin/Java (Android), along with strong backend expertise in Node.js, Django, FastAPI, and Laravel, supported by modern cloud technologies. My team and I build end-to-end mobile solutions including custom dashboards, internal tools, automation systems, role-based platforms, secure APIs, real-time features, payment integrations, push notifications, and complete app store deployments. We focus on creating smooth user experiences, clean architecture, and reliable performance. We’ve worked on numerous mobile projects with different requirements and complexities, helping clients turn their ideas into well-designed, high-performing applications. Your project aligns well with our technical skills and development approach. I’d be happy to discuss your project scope, ideas, and goals, and suggest the best technical approach. Best regards, Suman Joshi

@dominicd28

Dear Client, Good afternoon . I hope this proposal finds you well. This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills, (App Development, Mobile Development, Android App Development, Android, Flutter, Mobile App Testing, Android Studio, Software Architecture, Mobile App Development and Java), as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.

@bilal0356

Hello Abhishek S., We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on Java, Mobile App Development, Android, Software Architecture, Mobile App Testing, Flutter, Mobile Development, Android App Development, App Development, Android Studio Lets connect in chat so that We discuss further. Regards

@abdullahsaeeddev

Hi there I can integrate Firebase phone number OTP authentication directly into your existing login screen, reusing the current UI with no extra screens. I’ll handle auto-verification, resend, timeout, error states, and ensure no impact on existing login flows. You’ll receive clean, working code, required Firebase/Gradle updates, and a quick demo showing the full OTP flow. Let's continue

@jagadeesh256

I’m a Flutter developer with 1 year of experience, specialized in authentication features such as OTP login, SSO, and Android/iOS password autofill (Keychain & Autofill services). I’ve implemented secure login flows, handled platform-specific configurations, and integrated APIs while maintaining clean UI and performance. I’m confident this project fits my skill set and I’m open to negotiating timelines and budget. Happy to discuss details.

@eranilsharmamee

Hello, I can integrate Firebase Phone Number (OTP) Authentication directly into your existing Flutter login screen without adding new screens or affecting your current UI/UX. I have solid experience with Firebase Authentication, Flutter, and secure mobile login flows. The implementation will follow Firebase best practices while preserving your existing design and login logic. What I’ll deliver: Firebase Phone/SMS OTP sign-in embedded into the current login screen OTP auto-verification (where supported) + manual entry fallback Resend OTP, timeout handling, and clear user-friendly error messages No regressions to existing email/password or guest login flows Required setup documented (Gradle updates, SHA-1, Firebase Console changes) Short README (and optional screencast) showing the full flow on emulator/device Acceptance-ready: Clean build in Android Studio Secure, production-ready implementation Graceful handling of invalid or expired OTPs Timeline & Budget: Delivery in 3-5 days Fixed cost ₹5,000 I’ll hand over a working pull request or zipped module, as preferred. I can start immediately and share progress quickly.