Posts

All the articles I've posted.

• Google AdSense Rejected My Blog Again and Again: Finally Approved After a Year

  Published: 1 Oct, 2026 |  at  06:06 PM

  After 13 account applications and 10 site review submissions, my blog finally got Google AdSense approval. Here is what I tried, fixed, and got wrong.

• Adding Video Watermarks on Android with Media3

  Published: 9 Aug, 2026 |  at  07:30 PM

  Adding video watermarks on Android with Media3 and comparing the resulting app size and implementation trade-offs with FFmpeg.

• Running Native Executables on Android 10+ under W^X Restrictions

  Published: 13 Jun, 2026 |  at  04:30 AM

  Running native executables on Android 10 and later through the jniLibs extraction mechanism while accounting for W^X restrictions and platform constraints.

• PixelCompass: A Low-Cost, Web-Configurable Minecraft Compass IRL

  Published: 21 May, 2026 |  at  04:39 AM

  Rebuilding the Minecraft compass in real life (Project: PixelCompass). Hardware is fully open-source. This new iteration downgrades the MCU to the budget-friendly WCH CH592F to drastically cut cost and power consumption, optimizes LED diffusion, and introduces a driverless USB web dashboard for easy configuration. Includes complete bill of materials, assembly guide, and troubleshooting.

• How Android BootAnimation Draws the Clock

  Published: 15 May, 2026 |  at  08:12 AM

  How Android BootAnimation's drawClock and drawText functions draw time text by selecting glyphs from a font atlas.

• How Android's Boot Logo Shine Animation Works: From AOSP to a Canvas Demo

  Published: 13 May, 2026 |  at  06:34 AM

  Tracing Android BootAnimation's logo shine effect in AOSP and recreating it as an interactive Canvas demo with adjustable parameters.

• Integrating lib3mf, Part 5: Extracting 3MF Geometry in C++ and Rendering with OpenGL

  Published: 7 Apr, 2026 |  at  06:20 AM

  Extracting geometry with lib3mf in C++, packing vertex data, calculating area-weighted smooth normals, and rendering a 3MF model with OpenGL shaders and VBOs.

• Integrating lib3mf, Part 4: Flutter Texture and a Native C++ OpenGL Rendering Pipeline

  Published: 25 Mar, 2026 |  at  12:56 AM

  Connecting Flutter Texture to Android EGL and native C++ through JNI to build an OpenGL rendering pipeline without adding a PlatformView hierarchy.

• Integrating lib3mf, Part 3: Reading 3MF File Information in Flutter

  Published: 14 Mar, 2026 |  at  09:22 AM

  Reading 3MF model metadata in Flutter through lib3mf and FFI, from asset file handling and cross-platform logging to iterating model objects on Android.

• Integrating lib3mf, Part 2: Creating a Flutter FFI Plugin and Adding Android Support

  Published: 10 Mar, 2026 |  at  06:00 PM

  Creating a Flutter FFI plugin for lib3mf, configuring the Android NDK, redirecting std::cout to Logcat, and handling Android 15's 16 KB page size requirements.

• Integrating lib3mf, Part 1: Building the Library and Running the Examples

  Published: 3 Mar, 2026 |  at  05:20 PM

  Building lib3mf from source with CMake, running its examples, and exploring the 3MF core specification and extensions before integrating it into Flutter.

• Embedding Android Native Views in Flutter with PlatformView and MethodChannel

  Published: 26 Feb, 2026 |  at  07:00 PM

  Embedding Android native views in Flutter through PlatformView and using MethodChannel for two-way communication, with notes on layout constraints.

• Deriving Great-Circle Distance from Latitude and Longitude

  Published: 19 Feb, 2026 |  at  09:09 AM

  Deriving great-circle distance from 3D Cartesian coordinates, examining short-distance precision loss, and obtaining the numerically stable haversine formula.

• Website Performance Optimization: From 53 to 97 on PageSpeed Insights

  Published: 13 Feb, 2026 |  at  06:33 PM

  Documenting the complete process of analyzing and optimizing a Hexo blog using PageSpeed Insights. Mobile score improved from 53 to 97, and desktop score reached a perfect 100.

• Real-time Desktop Streaming on M5Stack Cardputer via H.264

  Published: 9 Feb, 2026 |  at  06:55 AM

  Five years later, I return to the ESP32 streaming challenge with the M5Stack Cardputer. Moving from a breadboard setup to hard-core H.264 decoding in your palm.

• Implementing an LVGL-Style Border That Occupies Real Layout Space on Android

  Published: 4 Feb, 2026 |  at  09:13 PM

  Implementing an LVGL-style border on Android by changing FrameLayout measurement and using PorterDuffXfermode to draw rounded borders that occupy layout space.