Contact person: Business Client

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Location: Ha Noi, Vietnam

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I’m building a focused Android app that takes the wallpaper-editing portion of “DIY Wallpaper Collage Craft” and turns it into a streamlined, stand-alone experience. No collage maker or cut-out tool is needed—just a smooth, modern interface dedicated to personalizing wallpapers.

Core scope
I need a production-ready Android Studio project (Java or Kotlin) that lets users import an image and then apply three customization capabilities:

• Color adjustment – basic hue, saturation, brightness sliders with realtime previews.
• Pattern design – overlay repeatable patterns (stripes, dots, grids) with adjustable scale and opacity.
• Text overlay – add multiple text layers; choose font, size, color, shadow, and position via drag-and-drop.

Key expectations
• Clean, modular code that follows Material guidelines and compatible down to API 23.
• All processing must be done on-device; no server calls.
• Export final artwork to common resolutions and set it as the device wallpaper directly from the app.
• Provide clear build/run instructions plus a short README covering third-party libraries (if any).

I’ll test by installing the APK on a physical device and checking that each customization option behaves smoothly, previews update instantly, and the saved wallpaper matches the preview. Once those criteria pass, the milestone is complete." (client-provided description)