S-Pen Sketch Overlay

@techplusintl

Hi there, ★★★ Mobile App Development / Android App Development Expert ★★★ 6+ Years of Experience ★★★ To complete this project, I will develop an Android background service that meets all specified requirements. Key steps include: 1. Research and select the most reliable gesture detection method (10 hours) 2. Implement the background service with a persistent canvas and the required drawing tools (20 hours) 3. Test the application on compatible Galaxy devices, ensuring it runs silently and meets performance criteria (15 hours) 4. Prepare and deliver the signed APK, full source code, and build instructions (5 hours) What I need from you: 1. Confirmation on the preferred gesture for triggering the overlay 2. Access to a Galaxy S25 Ultra device for testing 3. Any specific preferences for color/size options of the drawing tools I look forward to connecting at your convenience to ensure the project's success. Best Regards, TechPlus Team

@rbtech1984

Hi There! ⚜⭐⭐⭐⭐⚜(Create a lightweight android background service for galaxy devices with s pen support. Trigger a full screen persistent sketch overlay from any screen using a reliable global gesture. Ensure low battery usage, instant recall of the same canvas, and simple pen based tools.)⚜⭐⭐⭐⭐⚜ I HAVE WORKED ON ANDROID SYSTEM LEVEL FEATURES INCLUDING OVERLAY WINDOWS, ACCESSIBILITY BASED GESTURE CAPTURE, AND PERSISTENT CANVAS STATE MANAGEMENT. SIMILAR PROJECTS INVOLVED S PEN INPUT HANDLING, PERFORMANCE SAFE BACKGROUND SERVICES, AND MINIMAL UI SCRATCHPAD TOOLS. I AM READY TO SHARE RELEVANT ANDROID AND S PEN RELATED WORK IN THE CHAT AND EXPLAIN HOW GESTURE DETECTION AND CANVAS PERSISTENCE WILL BE HANDLED ON RECENT GALAXY DEVICES INCLUDING S25 ULTRA. My focus is a stable, distraction free implementation that behaves predictably across apps while respecting system resources and security constraints. If you would like to discuss the technical approach and validation flow, I would be glad to continue the conversation here. Warm Regards, Farhin B.

@ayesha0124

Hi there, I’m excited about your project for an S-Pen Sketch Overlay on Galaxy devices! With my background in Android app development and experience using the S-Pen SDK, I am well-equipped to create a seamless background service that enables users to summon a persistent drawing canvas with a simple gesture. The key to your requirements is ensuring that the overlay remains responsive while conserving battery life. I propose using a reliable swipe gesture that can trigger the overlay from any foreground app or home screen. This will provide a user-friendly experience while ensuring whatever is drawn remains intact until the user decides to erase it. I am confident in delivering a signed APK, full source code in Kotlin, and comprehensive build instructions within the 14-day timeline. Let me know if you prefer specific color options for the tools or any other feature tweaks I should consider!

@mobiwebsolutions

Hi There!!! The Goal of the project:- BUILD A LIGHTWEIGHT AND ALWAYS AVAILABLE S-PEN SKETCH OVERLAY THAT CAN BE SUMMONED FROM ANY SCREEN AND RETAINS THE SAME CANVAS UNTIL THE USER ERASES IT. I have carefully read your complete project description and understand that you need an Android background service for Galaxy devices that runs silently, detects a reliable global gesture, and instantly opens a full screen sketch overlay that preserves the last drawing in memory without creating new notes or integrating with Samsung Notes. I am the best fit for this project because I have hands-on experience with Android system level features, overlay services, gesture handling, and performance focused mobile development. Key points matching your requirements are global gesture detection using accessibility services, a persistent in memory canvas that never resets unless erased, and full compatibility with recent Galaxy S-Pen devices including S25 Ultra. Basic services will include UI implementation for the drawing tools, background service and state management, performance and device testing, signed APK delivery, and full source code with build instructions at project completion. I bring 9+ years experience as a full stack developer and have already completed Android projects involving custom overlays, background services, and stylus based input handling. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!

@GameOfWords

I have 7+ years of mobile development experience, specializing in Android and Kotlin/Java, with hands-on expertise in S-Pen SDK, overlays, and persistent drawing canvases. I’ve built lightweight background services and gesture-driven apps that run efficiently without impacting battery or performance. For your project, I will implement a global gesture-triggered overlay that instantly brings up a persistent canvas showing the last drawn content. The app will support pen, eraser, and highlighter with basic color/size options, run silently in the background, and be fully compatible with Galaxy S25 Ultra and recent S-Pen models. I will ensure clean, maintainable code with full source, build instructions, and a signed APK ready for immediate testing. Potential challenges with gesture detection or overlay persistence will be handled using optimized Accessibility Services and memory-efficient drawing storage. Could you clarify whether the gesture should be configurable by the user, or is a fixed gesture sufficient for your MVP?

@arbu1499

Hi there, I understand you need a lightweight Android background service for Galaxy devices with S-Pen, that triggers a full-screen scratchpad overlay via a global gesture—persisting your drawings exactly as you left them, without integration into Samsung Notes. I’ve worked with S-Pen SDKs, overlay windows, and accessibility services to capture reliable global gestures, balancing responsiveness with battery efficiency. For gesture detection, I’d recommend using a custom swipe or double-tap via accessibility service or Samsung’s specific APIs for accuracy and minimal false triggers. I can deliver a clean Kotlin solution with pen, eraser, and highlighter tools, plus signed APK and full source within a realistic timeline. Happy to discuss details and get started. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T

@Tanmoy236

Warm Hello! I specialize in building lightweight Android background services for Samsung Galaxy devices, focused on S-Pen input, global gestures, and persistent overlays that feel instant and distraction-free. As a seasoned Android developer with over 9 years of experience, I’ve worked with accessibility services, system overlays, and stylus-driven input to create reliable, battery-safe utilities that run silently and work across apps, including on recent Galaxy flagships like the S25 Ultra. Here's how I can help: Implement a reliable global gesture via Accessibility Service to summon the overlay from any screen Build a full-screen, zero-UI “paper” overlay using system over-draw that restores the last canvas state instantly Ensure true persistence by keeping the canvas in memory and syncing to lightweight local storage only when needed Integrate S-Pen–optimized input with pen, eraser, and highlighter tools plus basic color and size controls Optimize for minimal battery impact and smooth performance across One UI versions Deliver a signed APK, full Kotlin source code, and clear build/run instructions

@haseebsidd07

Hey , I just went through the project description, and I see you are looking for someone experienced in Android, Mobile App Testing, Application Performance Monitoring, Mobile Development, Android SDK, Android App Development, User Interface / IA and Mobile App Development. It instantly reminded me of a client who faced similar challenges, and I knew I had a tailor-made solution for it. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: • Is there anything else you’d like to add to the project details? • What’s the top hurdle you’re facing with this project? • What is the timeline to get this done? Why Choose Me? 250+ Projects. 5 Years. Zero Misses. My reputation is built on a single metric: Flawless Execution. While others promise quality, my last 100+ consecutive 5-star reviews prove it. I don’t just finish the job; I set the standard. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) The portfolio here is just the tip of the iceberg. To respect client confidentiality, my recent heavy-hitters aren't public, but I can share them 1-on-1. Click the 'Chat' button, and I’ll send over the relevant samples immediately for your review. Regards, Abdul Haseeb Siddiqui.

@Rahulsingh5xz

Hello, I’m Rahul Singh from Team Velora, running successfully for 3 years. Our experienced Android developers can build a lightweight background service for Galaxy S-Pen devices that triggers a persistent, full-screen scratchpad via a global gesture, with pen, eraser, and highlighter tools. We’ll deliver a signed APK ready for testing on the S25 Ultra, along with full source code and build instructions. Please come to the chat to discuss gesture detection and persistence details so we can start immediately.

@jagratip3

Dear Team, I am an experienced Android developer with 6+ years of building custom system-level services, background overlays, and S-Pen integrations. I can implement your lightweight Galaxy S-Pen scratchpad exactly as specified, delivering a reliable, always-accessible overlay for Galaxy devices including the S25 Ultra. For your project, I propose: Background Service & Global Gesture: Runs silently without affecting battery life; triggers overlay via a swipe or S-Pen button gesture using AccessibilityService and Samsung S-Pen SDK hooks. Persistent Canvas: The overlay always restores the last session in memory; no new notes are created and nothing is saved to Samsung Notes. Drawing Tools: Pen, eraser, and highlighter with adjustable color/size, minimalistic UI to keep focus on sketching. Compatibility & Testing: Fully tested on Galaxy S-Pen devices (Note20, S22/S23/S25 Ultra) to ensure flawless gesture detection and overlay rendering. Deliverables will include: Signed APK ready for immediate testing Full, well-documented Kotlin source code Build instructions and instructions for gesture setup I can deliver a polished, lightweight, battery-friendly solution within 7–10 days, ensuring gesture reliability and persistent canvas functionality. I have prior experience with overdraw overlays, S-Pen events, and system-level input handling, making this task straightforward and maintainable. Best regards,

@devvoyager

Hello, I’ll build a lightweight Android background service for Galaxy S-Pen devices that instantly brings up a full-screen scratchpad from anywhere and preserves the canvas exactly as it was, every time. Here’s what you’ll get: Always-running background service optimized for battery safety Reliable global gesture to trigger the overlay from any app or home screen Full-screen overlay canvas that restores the last state instantly Persistent in-memory drawing surface, nothing saved to Samsung Notes Only three tools: pen, eraser, highlighter with basic size and color controls Tested compatibility with modern Galaxy S-Pen devices, including S25 Ultra Signed APK for testing, full source code, and clear build instructions Why me: I’m Rashid Ali. I build system-level, utility-focused apps where reliability and performance matter more than UI polish. I focus on gesture handling, persistence, and low overhead so the tool feels native, fast, and invisible until needed. If you want an always-ready scratchpad that works instantly and doesn’t get in the way, I can deliver a clean, focused solution quickly. Best regards, Rashid Ali

@mubeenm5026

With an extensive background in mobile app development and a sharp focus on user interface, I am confident that I can deliver the precise service you need for your project. Your requirement for a background service that seamlessly pops up a full-screen "paper" using global gestures is right up my alley. Furthermore, my deep understanding of not only the Android platform but also Samsung Galaxy devices, including the S-Pen models like Note20 and S25 Ultra, puts me in a prime position to ensure maximum compatibility with your preferred tools and features. Persistent canvas retention is key to your project, and it's central to the note-taking functionality you desire. I'm adept at implementing such features without hampering battery life or affecting device performance; it’s what I do every day. With this understanding, I will use gesture detection in combination with the overlay functionality to meet your requirement seamlessly.

@NazarKanteruk

Hi there! This project sounds like an awesome upgrade for productivity and seamless note-taking. I can deliver a reliable, battery-friendly background service that summons a persistent, full-screen scratchpad with a gesture of your choice—smoothly integrated with S-Pen functionality, even on the latest Galaxy devices. I'll ensure a super-light, minimalist UI with just the essential tools and robust gesture detection, using proven methods like accessibility services or custom overlays for maximum reliability. Excited to discuss your preferred gesture and get started right away!

@sairan00

Hi, Since I will be acting as your lead Android developer to build this specialized S-Pen utility for your Galaxy S25 Ultra do you have existing brand guidelines and brand assets for the app icon or should I also ask about your preferred S-Pen pressure sensitivity levels specifically if you want the pen tool to mimic a fountain pen or a fixed-width marker to ensure the drawing experience is technically optimized for the high-precision digitizer on the newest Ultra models? My solution involves a persistent drawing canvas that utilizes a local SQLCipher or Internal Storage binary file to save your strokes in real-time; this ensures that when the overlay is hidden and re-summoned, the canvas state is restored instantly without the overhead of a database. I will limit the UI to a floating toolbar containing only the pen, eraser, and highlighter, engineered to run with minimal battery impact by pausing drawing listeners when the overlay is inactive. You will receive the signed APK, the full source code, and step-by-step build instructions for your environment. You can visit my portfolio here: https://www.freelancer.co.it/u/sairan00 I am ready to review your S25 Ultra specifications to begin the SDK environment setup today. Best regards Saira N

@billybryan98

Hello, I am an Android developer specializing in Kotlin, background services, and reliable overlays. I design lightweight, battery-friendly solutions that stay quiet in the background while you use other apps. I’ve built gesture-driven overlays and persistent canvases with an S-Pen focus, using accessibility services and overlay windows to summon a full-screen drawing surface without creating or filing notes in Samsung Notes. I can implement your zero-note scratchpad with pen, eraser, and highlighter, plus basic color and size options. The canvas will persist until you erase, and the overlay will trigger from any foreground screen with minimal performance impact. I will deliver a signed APK, full source code in Kotlin, and clear build instructions, ready for testing on recent Galaxy models including the S25 Ultra. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan

@syeds273

Hey , Thank you for sharing the job details. After going through the description, it’s clear you need someone confident with Application Performance Monitoring, Android App Development, Mobile App Testing, Android SDK, Android, Mobile App Development, User Interface / IA and Mobile Development and can deliver clean, reliable results. That is exactly the kind of work done day to day, so this project is a great fit. Before getting started, there are a few points that would really help shape the best solution for you: Are all the mentioned skills and features mandatory, or is there any flexibility in the tech stack and scope? Is there any existing code, design, or documentation available, or should this be developed completely from scratch? What is your ideal timeline and any hard deadlines for milestones or final delivery? Why work with me? 1. More than 250 major projects completed, including complex, long-term engagements. 2. No negative feedback over the last 5 to 6 years, reflecting consistent quality and reliability. 3. 100+ recent major projects with 5-star reviews, showing that clients are not only satisfied but return with more work. Availability: 9 AM to 9 PM Eastern Time (full‑time freelancer, easy to collaborate and quick to respond). Portfolio: https://www.freelancer.com/u/syeds273 Recent, relevant work samples will be shared privately to protect client confidentiality. Please start the chat so we can finalize the project details, expectations, and the best

@dragomira2

As an Android developer with deep expertise in app development, I can confidently say that your project aligns perfectly with my skills and experience. With a decade of experience across the full software lifecycle, I've garnered immense knowledge and hands-on proficiency in building robust mobile applications. Moreover, my technical arsenal contains essential skills like Android SDK, Mobile App Testing, and User Interface design, which are crucial for the successful execution of this project. Additionally, in my previous roles, I've worked extensively on projects implementing complex gestures and overlays. My ability to work with efficiency ensuring both a rich UX and optimized battery life qualifies me for your requirement of a silent background service that doesn't hamper users' experience or device performance. As a seasoned developer, I understand that note-taking is the core requirement here and I'll ensure every stroke of your S-Pen remains visible until you explicitly erase it. Lastly, my competencies extend beyond pure development; I have a profound understanding of optimization and scalability issues. This is especially relevant when considering recent Galaxy S-Pen models like Note20 and S25 Ultra which require meticulous attention to ensure compatibility. To sum it up, my deep technical knowledge coupled with my unwavering commitment to quality makes me the ideal fit for this project. Let's build your sketch overlay solution together!

@draganv2

Hello! I can develop the background service you need for Galaxy devices with an S-Pen, ensuring it’s lightweight, persistent, and easy to summon via a gesture. I will implement a seamless overlay that retains your notes between sessions with the tools you need—pen, eraser, and highlighter. The app will run silently in the background with minimal impact on performance, and it will allow you to draw, erase, or highlight without interrupting your flow. Let’s discuss how we can bring this simple, effective scratchpad to life! Best regards, Dragan

@dexwolftech999

Hi there, We can assist you in developing an Android background service for Galaxy devices with an S-Pen, focusing on a simple global gesture to pop up a full-screen, blank "paper" for note-taking purposes. Our team at DexWolf Technologies has extensive experience in mobile app development and can ensure the smooth functioning of the overlay while maintaining compatibility with recent Galaxy S-Pen models like the S25 Ultra. Questions: 1. How important is battery optimization for the background service on Galaxy devices? 2. Are there any specific color or size options you prefer for the drawing tools? DexWolf Technologies has a proven track record in mobile development and is well-equipped to deliver a tailored solution for your S-Pen sketch overlay project. Feel free to check out our profile at https://www.freelancer.com/u/dexwolftech999. We'd be happy to share our portfolio and discuss further details over chat. Please click the chat icon to connect with us. Thanks, DEX