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I already have WhatsApp messaging fully configured on the web portal and everything works there. What is missing is the same convenience inside the Android app: a single button that, when tapped, fires both a WhatsApp message and a standard SMS. Here is what I need from you: • Add a neat, non-intrusive button to the existing Android screen. • Create a small server-side endpoint that receives the tap event and reuses my current WhatsApp/SMS sending logic (no new database tables or migrations are involved). • Wire the button to that endpoint from the app, pass the required parameters, and handle the success / failure response gracefully. I do not yet have the API for this call, so your task includes setting it up. I’m open to any practical library, SDK or method you prefer for the Android side, as long as it keeps the footprint light and the code readable. The job is finished when tapping the new button sends the predefined WhatsApp message and text message exactly as the portal does, and I can see a clean success response in both the app and server logs.
Project ID: 40604299
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81 freelancers are bidding on average ₹21,287 INR for this job

Hello, I can help with your "Android WhatsApp & SMS Trigger Button" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, java, mobile app development, android, backend development, android app development, android sdk, api development, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. You'll get clean commits and clear documentation. Can we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹22,500 INR in 5 days
8.0
8.0

Hi, I'd be happy to help develop your Android application with WhatsApp and SMS trigger functionality. Can you please share your existing web portal link and also the android app play store link. Also can you please tell your existing android app is developed using which technology. I will handle both android and backend API that is required to achieve this feature. I have done whatsapp and sms integration in many projects. I'm available to start immediately and would be happy to discuss the implementation details. Regards, Avinash Jain Procode IT Services
₹15,000 INR in 2 days
7.6
7.6

Hello sir, I can add the button to your Android app and develop the backend endpoint that will handle the tap. I can implement the WhatsApp and SMS sending button implementation from both Android app and backend. I am Moamen and i am an expert Android developer. I have done many Android apps before and ready to develop yours too. I have an excellent knowledge in Android development and I have about 5 years experience in that field. I can finish your job in the shortest time possible with the best quality you can get. Contact me to discuss further details. Regards.
₹20,000 INR in 3 days
6.6
6.6

Your Android app will fail silently if the endpoint does not validate the message payload before handing it to WhatsApp Business API - most developers skip input sanitization and discover rate-limit bans or delivery failures weeks later. Quick questions - are you using the official WhatsApp Business API or a third-party gateway like Twilio? And does your current web portal queue messages or send them synchronously? Here is the architectural approach: - PHP BACKEND: Build a RESTful endpoint that validates input, reuses your existing WhatsApp/SMS logic, and returns structured JSON with delivery status codes for both channels. - ANDROID SDK: Implement a single-tap handler using Retrofit for the API call, RxJava for async execution, and Material Design components for the button with loading states and error toasts. - API DEVELOPMENT: Design the request schema to include user ID, message template key, and recipient phone number - response includes WhatsApp message ID and SMS gateway confirmation for audit logging. I've built similar dual-channel notification systems for 2 healthcare apps that process 10K+ messages daily without dropped sends. Let's schedule a 15-minute call to review your existing WhatsApp config before I write the integration layer.
₹22,500 INR in 7 days
6.7
6.7

Hi, I reviewed your project: Android WhatsApp & SMS Trigger Button. I can help you build, fix, or upgrade your Laravel/PHP application with secure authentication, database design, REST APIs, admin panels, payment integration, optimization, and deployment. I have strong experience with production Laravel systems, MySQL, JavaScript/React, API integrations, and server deployment. Please message me with the current codebase status and feature list so I can suggest the safest implementation plan. Portfolio: https://www.freelancer.com/u/irfanui Regards, Mohammad 4th Dimension Partners
₹37,500 INR in 24 days
6.1
6.1

Hello, I reviewed your requirements carefully and understand that the WhatsApp and SMS functionality already exists in your web portal. The objective is to expose that existing logic through a lightweight API and integrate it into your Android app with a single button, avoiding duplicate business logic or unnecessary database changes. My approach is to create a secure server-side endpoint that reuses your current WhatsApp/SMS sending implementation, accepting only the required parameters and returning a clean JSON response. On the Android side, I'll add a well-positioned button, integrate the API call using your existing networking stack (Retrofit/OkHttp or equivalent), handle loading, success, and error states gracefully, and ensure the app logs and server logs accurately reflect each request. One technical question: Is your Android app written in Java or Kotlin, and what backend framework powers your existing web portal (Laravel, Node.js, Django, etc.)? I can complete the implementation in 2–3 days, including API development, Android integration, testing, and documentation. The quoted price is an initial estimate and can be adjusted after reviewing the existing codebase. Best Regards
₹18,000 INR in 7 days
5.9
5.9

Dear Client, I read "Android WhatsApp & SMS Trigger Button" carefully and understand you want a messaging platform with fast, reliable real-time chat. My hands-on experience with PHP, Java, Mobile App Development, Android, Backend Development, Android App Development, Android SDK, API Development aligns directly with what you need. I've built chat apps with 1-on-1 and group messaging, media sharing, delivery/read receipts, push notifications and end-to-end security on backends that scale to heavy concurrent use. A few quick questions to get us started: 1. Do you need 1-on-1 chat only, or groups, channels and calls too? 2. Should it run on mobile, web, or both? 3. What user scale are you planning for at launch? Thanks & Regards, Deepak
₹24,375 INR in 14 days
5.8
5.8

As a seasoned Android developer with over 7 years of experience, I believe I’m the ideal fit for your project. My proficiency in using Kotlin and Java, along with my extensive knowledge in modern Android development techniques such as MVVM architecture and Jetpack libraries, allows me to ensure clean, efficient code that will seamlessly integrate your required features into your existing app. I am also well-versed in incorporating REST APIs with retrofit and OkHttp for stable and efficient data handling. In terms of your specific request, I have a solid command over integrating chat functionalities into Android apps whether it be WhatsApp or any other third-party SDKs. Additionally, I possess the skillset to set up a server-side endpoint that would efficiently run your existing WhatsApp/SMS sending logic without any disruptions. My vast experience ranges from developing streaming apps to API-driven mobile platforms; thus, I'm more than capable of delivering on the technical aspects of this particular project.
₹25,000 INR in 7 days
5.6
5.6

Hello, I can complete this integration quickly by adding a clean button to your existing Android app and creating a lightweight API endpoint that reuses your current WhatsApp and SMS sending logic—without changing your database. I'll handle the Android integration, API development, parameter validation, error handling, and logging to ensure both messages are sent with a clear success/failure response. I'm available to start immediately and can provide clean, maintainable code with ongoing support if needed. Thank you.
₹20,000 INR in 7 days
4.9
4.9

Your Laravel requirement for Android WhatsApp & SMS Trigger Button fits my production-development experience. I can build new modules, resolve complex issues, or safely upgrade the application with authentication, MySQL, REST APIs, admin panels, payments, optimization, and deployment. Please share the Laravel version, current code status, and priority feature or problem. I will review it and recommend the safest path forward. Relevant work: https://www.freelancer.in/u/heenafullstacken Regards, Heena | A Plus IT House
₹37,500 INR in 22 days
5.0
5.0

Since your WhatsApp logic already works on the portal, the fastest path is a thin REST endpoint that wraps that existing service, no new tables, just a clean POST route that accepts the recipient and message params, then fires both WhatsApp and SMS in parallel. I'll add a lightweight button to the existing Android screen using Retrofit for the API call, wire it to the new endpoint, and handle success/failure with proper UI feedback and server-side logging. One thing worth planning for: if WhatsApp succeeds but SMS fails (or vice versa), the response should report partial success per channel rather than a blanket error, so you don't lose visibility into which message actually went out. 1) Is the Android app built in Kotlin, Java, or something cross-platform like React Native? Happy to talk details in chat. Shayan
₹13,750 INR in 9 days
5.0
5.0

Since the WhatsApp and SMS logic already works on the web portal, I’d avoid duplicating it inside Android. The app should only send the required parameters to a small authenticated endpoint, while the server reuses the existing sending services. I can add the button, create the PHP/API endpoint, connect it from the Android app, and handle loading, success, failure, and server logging cleanly. I’d also verify that repeated taps don’t accidentally send duplicate messages. I’d first review the current Android screen and the portal’s existing WhatsApp/SMS functions.
₹12,500 INR in 4 days
4.9
4.9

As a leader with significant proficiency in Android App Development, I believe my team and I are the ideal fit to execute your project. We have extensive experience integrating various functionalities into Android apps while maintaining a light footprint. Specifically, our capability with Java and Mobile App Development aligns perfectly with your requirements. Moreover, being a Full-Stack Developer team, we can also handle server-side requirements proficiently. We will address your need for an API and create a small server-side endpoint that can reuse your existing WhatsApp/SMS sending logic - without encumbering you with new database tables or migrations. My team's dexterity extends to working with different libraries and SDKs, and we will adopt the most practical method that keeps the code base highly readable. Having successfully delivered 100+ projects across the globe and earning our clients' repeat business, our work ethic prioritizes precision, performance, and client satisfaction above all. This translates into taking care of even nuanced details like ensuring clean success/failure responses in both app and server logs. Let us bear the responsibility of translating your vision of an integrated messaging system into a reality that reflects your web portal's convenience on every tap. Look no further; invest in efficacy - choose us!
₹20,000 INR in 7 days
5.4
5.4

Hello, I’ll add a native Android button that triggers an Intent to launch WhatsApp with a pre‑filled message and, in parallel, uses SmsManager to send the same text via SMS. The button will call a lightweight PHP endpoint (≈50 KB) that reuses your existing messaging logic, returning a JSON success flag that the app will display as a toast. Which endpoint URL and authentication token should the app use for the call?
₹12,500 INR in 2 days
4.5
4.5

✅ I can add the new Android button, develop the required backend API endpoint, and integrate it with your existing WhatsApp and SMS logic so the app behaves exactly like your current web portal. ✅ I'll ensure clean API communication, proper parameter handling, robust success/error responses, detailed server logging, and a lightweight implementation without modifying your existing database schema. ✅ You'll receive production-ready Android and backend code, complete testing, and a seamless integration that reliably sends both WhatsApp messages and SMS with a single tap.
₹25,000 INR in 7 days
4.2
4.2

Since the web portal already handles WhatsApp and SMS successfully, the safest approach is to reuse that existing messaging logic rather than duplicate it in the Android app. The work is mainly about creating a clean API endpoint, connecting the Android app to it, and ensuring the user gets clear feedback if either message succeeds or fails. I would add a lightweight button that fits naturally into the current UI, implement a secure backend endpoint that invokes your existing WhatsApp/SMS workflow, and integrate the Android app to send the required parameters and handle the response gracefully. I'll also make sure the request is logged properly so it's easy to verify both client and server behavior during testing. I have experience integrating Android applications with REST APIs, backend services, and third-party messaging workflows, with a focus on keeping the implementation simple and maintainable without introducing unnecessary dependencies. One thing I'd like to clarify is how your web portal currently sends WhatsApp messages—does it use the WhatsApp Business API, a gateway provider, or another integration that the new endpoint should reuse?
₹15,000 INR in 6 days
4.3
4.3

Hello, my name is Jonas, mobile developer. The main thing here is keeping the new app action simple while making sure it uses the same sending flow that already works on your portal. I can add the Android button, create the API endpoint, and connect the app with proper response handling. The existing WhatsApp and SMS logic can stay as it is, so the change remains small and easy to maintain. I'll handle the Android side with a lightweight API connection and make sure failures are shown clearly instead of silently failing. I've built mobile applications with backend integrations and API-based workflows, including SaaS platforms and custom services. I'll also make sure the server logs clearly show each request result after the button is used. I have only one question, what Android technology is your current app using, Java or Kotlin? I'm ready to get this connected for you. Thanks for reading, and I'd be glad to help.
₹33,000 INR in 5 days
4.3
4.3

Hello, I've built Android UI additions wired to backend endpoints before, reusing existing sending logic rather than duplicating it, so this fits well within a tight, focused scope. I understand the goal here isn't a rebuild, it's a single clean button that triggers your existing WhatsApp and SMS logic through a new lightweight API endpoint. I'll add the button to the existing screen using standard Android SDK components to keep the footprint minimal, then build a small server-side endpoint that receives the tap event and calls into your current WhatsApp/SMS sending logic without touching the database. On the app side I'll wire the button to that endpoint, pass the required parameters, and handle both success and failure responses cleanly so the user sees clear feedback either way. I can start as soon as I have access to the existing codebase and the current WhatsApp/SMS sending logic to hook into. Thanks for considering my proposal.
₹17,500 INR in 4 days
4.0
4.0

With over 5 years of experience in Android and API Development, I believe I’m the right person to deliver your project effectively. As an Android expert, I’ve developed numerous applications that require intricate integrations, such as yours, and I have a strong understanding of how to create seamless, user-friendly experiences. Moreover, my in-depth knowledge of Java and PHP allows me to handle any backend development that may arise while setting up the server-side endpoint for your project - including setting up the necessary APIs. I assure you that this will not disrupt your current app's functionality or require additional database tables/migrations. Collaborating with me means gaining access to effective communication, meticulous attention to detail and dependable support. My goal is to ensure that your app mirrors the web portal's functionalities flawlessly; this includes hitting the predefined message targets on both WhatsApp and SMS while returning clear success response logs. Let's get started on delivering an easy-to-use tool for Android users!
₹25,000 INR in 7 days
3.9
3.9

i — Abror-Yakubov here, "ANDROID WHATSAPP & SMS TRIGGER BUTTON" — you need one simple tap to trigger your existing messaging flow. I’ll add the Android button, create the missing API endpoint, and connect it to your current WhatsApp/SMS logic without adding unnecessary database changes. The key is keeping the app-side code lightweight while handling failures clearly so users know when a message was sent. I’ll also verify the full flow from button tap to server logs and response handling to match your existing portal behavior. Can you share the current WhatsApp/SMS sending endpoint or server-side function that the web portal already uses? Looking forward to working with you.
₹17,000 INR in 3 days
3.1
3.1

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