Flutter Sports Social App | Refundable $50 GPS Background Tracking Demo, Must Have Amap & NetEase/Tencent IM Third-Party SDK Integration Experience, 1-Day Delivery with Source code, demo fee deducted from Phase1 budget on pass. Do not bid if disagree! - 1

@webbookstudio

Hi there, We understand you're looking to build a sports and social app with a focus on connecting users for workout activities, and you require a demo of continuous GPS location collection and real-time route drawing on a map using AMap, with specific tracking intervals and stability under various Android conditions. At Webbook Studio, we have experience with Flutter and cross-platform development, including integrating third-party SDKs like NetEase Yunxin for IM functionality. Our team has worked on similar projects, such as a music voting mobile app using React Native and a furniture store mobile shopping app with Flutter, demonstrating our capability in handling complex mobile applications. We will deliver a fully functional offline Android demo app that meets your requirements, including source code, build instructions, and a demonstration video, within the specified 1-day timeline. Can you please confirm if there are any specific design preferences or additional features you'd like to see in the demo or the subsequent phases of the project? Feel free to message us to discuss the details! — Webbook Studio

@ahmadayaz

I propose a partnership to develop a Flutter app for sports and chatting, focusing on background location tracking on Chinese Android devices. I will create a stable demo app offline, then move to Phase 1 to add SMS login, LBS, NetEase Yunxin SDK, user profiles, and activity tracking. With experience in IM SDKs and app deployment, I aim to deliver Phase 1 and support advanced features in Phase 2 effectively. Let's work together to bring your app vision to life.

@onkarkulkarni8

Hello, I can help with your "Flutter Sports Social App | Refundable $50 GPS Background Tracking Demo, Must Have Amap & NetEase/Tencent IM Third-Party SDK Integration Experience, 1-Day Delivery with Source code, demo fee deducted from Phase1 budget on pass. Do not bid if disagree! - 1" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, mobile app development, android, mobile app testing, ios development, backend development, flutter, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Can we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "it was great working with him, did whatever changes i asked him as per my need." Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.

@XanvraTECH

Hello, I am interested in the Flutter Sports Social App project and have expertise in Flutter, iOS Development, Mobile App Development, PHP, Android, and Backend Development. I understand the requirement for integrating Amap and NetEase/Tencent IM Third-Party SDKs for background tracking in the app. To meet the project requirements, I will develop an offline Android demo app showcasing continuous GPS location collection and real-time route drawing on a map. My experience in cross-platform development and integrating third-party IM SDKs aligns well with the project needs. - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH I look forward to discussing this project further and showcasing my skills in background location on Chinese Android/iOS devices. I am willing to build the offline demo as the first step. Let's connect for a detailed discussion. Best regards, Warda Haider

@mahig47

Hi, I've carefully reviewed your requirements, and I'm pleased to let you know that I have already developed similar real-time location tracking, social networking, fitness, and chat applications using Flutter, PHP, Google Maps/AMap, WebSockets, Firebase, and third-party messaging SDKs. I understand you're looking for a developer who can first prove expertise with a stable offline GPS tracking demo before proceeding with the complete sports and chatting platform. With 7+ years of experience in Flutter and cross-platform mobile development, I can build the offline Android demo using AMap with continuous background GPS tracking, real-time route rendering, adaptive tracking intervals, and detailed tracking logs that perform reliably under lock screen, background execution, and battery optimization. After successful demo validation, I'll develop Phase 1 with SMS authentication, Nearby Users, NetEase Yunxin IM integration, user profiles, sports activity tracking, PHP backend, REST APIs, database architecture, and complete deployment support for both iOS and Android. The solution will follow a scalable architecture, making future Phase 2 enhancements seamless. Additionally, I provide 3 months of free post-launch support for bug fixes, performance optimization, and minor feature improvements. PLEASE INITIATE CHAT SO I CAN SHARE MY PREVIOUS FLUTTER, GPS TRACKING, SOCIAL NETWORKING, AND REAL-TIME CHAT APPLICATIONS. Best Regards, Nikita Gupta

@jvy7802

Hi, This is Jorge from IT GLOBAL SOLUTION LLC, based in the U.S. I have strong experience with Flutter mobile development, Android background services, GPS tracking, map integrations, PHP backend architecture, API development, and third-party SDK integrations. Your sports social app is a good fit because it requires reliable background location tracking first, then a scalable Phase 1 structure with login, nearby users, IM, profiles, and activity tracking. I can build the offline Android demo using AMap, with continuous GPS collection, route drawing, moving/stationary detection, interval switching, visible logs for timestamp/accuracy/state, and source code with build instructions. I understand the importance of testing background tracking under locked screen, background mode, and battery-saving conditions, especially on Huawei, Xiaomi, OPPO, Vivo, and other Chinese Android devices. For Phase 1, I can support Flutter iOS/Android development, PHP backend setup, database schema, REST APIs, SMS login, LBS nearby users, user profiles, sports route tracking, and NetEase Yunxin IM integration with your user system. My focus would be stable tracking, clean architecture, SDK compatibility, clear documentation, and store-ready delivery. Let’s connect and go over the details. Best, Jorge

@melikatfz

Hey, the background GPS stability on Huawei, Xiaomi, OPPO, and Vivo devices is a real challenge due to their aggressive power management. I'm used to working with foreground services and vendor-specific optimizations to keep tracking consistent, especially for that 5-second interval. Getting the NetEase Yunxin SDK to play nicely with a custom PHP backend and user system for real-time IM is where things often get complex, but I've handled similar integrations. For the demo, are there any particular edge cases you've encountered with Amap's background location accuracy?

@CodeAnchors

Greetings, I have a clear understanding of your project focused on developing a sports and chatting app for connecting users with workout partners. My expertise lies in PHP, Mobile App Development, Android, iOS Development, Backend Development, and Flutter, with a strong background in integrating third-party SDKs like NetEase Yunxin. For the initial step, I propose a structured approach with controlled planning, clean implementation, and milestone-based transparency. My portfolio includes successful projects showcasing reliable execution and long-term results. To ensure alignment with your business goals, could you clarify the top priority feature for the sports and chatting app? I invite you to open a chat for finalizing the project scope seamlessly. Best regards, Muhammad Anas Khan

@FizzaNadeemK

Hi, I can help you build a stable sports tracking app with reliable background GPS performance on demanding Android devices. I understand your key requirement is the offline AMap demo with 5 second moving tracking, route drawing, and background stability on devices like Huawei and Xiaomi. I’ll first build the proof of concept with proper location handling, state detection, visible logs, and provide source code, setup steps, and testing video. I have experience with Flutter mobile development, GPS based applications, real time features, and integrating backend services and SDKs. I’m currently fully available, can start immediately, and can dedicate my full attention to complete the demo quickly. I can deliver the offline tracking demo within 1 business day and continue with Phase 1 development after successful approval. I’d be happy to discuss the demo requirements and begin with the first step. Best Regards, Fizza

@purealmaz

Hi! This is a solid, well-defined first step. The requirement for a stable, 30-minute background GPS tracking demo on locked-screen Chinese devices (Huawei, Xiaomi) is a great way to vet for genuine Android expertise. A few points to confirm: the demo requires drawing the route on an Amap-based map, correct? While the demo is offline, have you considered a backend stack for the full app? We have extensive experience with Node.js for scalable systems. We'll build the native Android demo in Kotlin, using a Foreground Service to ensure the GPS remains stable across different OEM battery-saving modes. This approach is similar to a logistics tracking app we built that required non-stop background location reporting for fleet management, successfully deployed on a range of challenging Android devices. The key is handling the aggressive battery optimization, which we're prepared for. We agree to the terms and can deliver the demo, source code, and video within 1 day as requested. Philip and The SKIIE Team

@MIndlabsAi6

Hey there! I’m beyond excited to take this on! I recently wrapped up a similar project with good results. Drawing from my experience in PHP, Mobile App Development, Android, Mobile App Testing, iOS Development, Backend Development, Flutter, I’m ready to dive into your project. Please come over chat and discuss your requirement in a detailed way. Cheers, Vishal Maharaj

@SkillCrafts

Your requirement for a refundable GPS background tracking demo with Amap and NetEase/Tencent IM integration aligns perfectly with my experience building real-time location-aware applications. I've successfully implemented similar background tracking functionalities in fitness apps, ensuring reliable data capture even when the app isn't actively in the foreground, and integrated robust chat SDKs for seamless user communication. My technical approach will involve leveraging Flutter's platform channels to interact with native Android and iOS APIs for precise GPS background tracking. I'll utilize Amap's SDK for accurate location services and implement NetEase/Tencent IM SDKs for real-time messaging and presence. The plan is to set up a background service that continuously records location data, periodically sends updates, and establishes persistent chat connections, delivering a functional demo within your 1-day timeframe. To ensure we are aligned, could you clarify if the background tracking needs to be active only during user-initiated activities (e.g., a run) or continuously while the app is running? Also, are there specific requirements for battery optimization on the background tracking feature? I'm ready to discuss further and demonstrate this proof-of-concept.

@mengw3

Hi. Background location on Chinese Android is exactly my specialty, and I agree to the offline demo first, that's the right way to prove it. On Huawei, Xiaomi, OPPO and Vivo the OS kills background apps hard, so continuous 5 second tracking under lock screen and battery saver comes down to a foreground service with an ongoing notification, a partial wake lock, and getting the app onto each OEM's autostart and battery-optimization whitelist, plus requesting background-location permission correctly per Android version. For the demo: a fully offline Android app, no server, collecting GPS every 5 seconds and drawing the route live on the map, running stable for 30-plus minutes through lock screen, background and battery-saver on those OEMs. I hand over source, build instructions, and a screen-recorded video showing the locked-screen tracking holding on a Huawei or Xiaomi device. For the formal app I've integrated AMap and NetEase/Tencent IM SDKs before, so the map and chat pieces are known ground, not a first attempt. On my experience with Chinese-device background location and relevant work, I'll share the demo repo and tracking videos with you directly so you can run the stability test yourself before we talk budget and timeline for the full build. I can deliver the demo inside the one-day window.

@KasjanovaEste

hi i will build a 100% offline android demo app using amap that collects continuous gps location every 5 seconds when moving and every 15 seconds when stationary, draws real-time route trails on the map, maintains stable background tracking for at least 30 minutes under lock screen background running and battery-saving modes on huawei xiaomi oppo and vivo devices, and keeps a visible log of state interval timestamp and accuracy. the deliverables are source code build instructions and a short video demonstrating background tracking working on locked-screen background and battery-saving modes. after demo passes, i will develop the formal flutter sports social app with sms login lbs nearby users netease yunxin im integration user profiles and sports activity tracking, with a php backend and full architecture. i have experience with flutter background location on chinese android devices and third-party sdk integration and will deliver the demo within 1 day and phase 1 within 30 days. thanks