https://ramdom.me/ Ram-Dawson 的个人技术手记 - 记录开发实践、问题排查与项目记录 zh-CN Fri, 13 Nov 2026 00:00:00 +0000 https://ramdom.me/posts/webgl-angle-shader-compile-stalls/ https://ramdom.me/posts/webgl-angle-shader-compile-stalls/ Ram-Dawson 定位 Windows Chrome（WebGL2 → ANGLE → D3D11 fxc）下两类着色器编译退化：循环内动态索引常量数组导致的 144 秒无响应，以及动态光源循环内隐式偏导采样导致的 3 秒链接阻塞。 Fri, 13 Nov 2026 00:00:00 +0000 三维与渲染 https://ramdom.me/posts/blog-migration-and-site-setup/ https://ramdom.me/posts/blog-migration-and-site-setup/ Ram-Dawson 记录从 Jekyll 模板迁移到 Jaspr 与 flutter_scene 的选型缘由、内容与三维书房设想，以及 Cloudflare 部署考量。 Thu, 12 Nov 2026 00:00:00 +0000 开发随笔 https://ramdom.me/posts/flutter-scene-indoor-performance-optimization/ https://ramdom.me/posts/flutter-scene-indoor-performance-optimization/ Ram-Dawson 记录三维书房在 Web 端从启动期像素回读、细碎节点提交与动态纹理泄漏，收敛到离线烘焙、时间片合批、静动态双态替身与阴影掩码隔离的过程。 Thu, 12 Nov 2026 00:00:00 +0000 三维与渲染 https://ramdom.me/posts/gson-r8-generic-response-troubleshooting/ https://ramdom.me/posts/gson-r8-generic-response-troubleshooting/ Ram-Dawson 接口返回 200 但开启 R8 的 Release 包进入失败态，记录如何通过字节码 Signature 检查定位泛型擦除与 LinkedTreeMap 类型转换异常。 Thu, 12 Nov 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/roundback-hardback-book-geometry-and-typesetting/ https://ramdom.me/posts/roundback-hardback-book-geometry-and-typesetting/ Ram-Dawson 记录三维圆背精装书的紧背与空背形变建模、左右纸叠厚度不对称时的纸根细分防穿模，以及 TextPainter 动态分页与 6 槽页面纹理原地覆写。 Fri, 06 Nov 2026 00:00:00 +0000 三维与渲染 https://ramdom.me/posts/typewriter-3d-ime-rendereditable-alignment/ https://ramdom.me/posts/typewriter-3d-ime-rendereditable-alignment/ Ram-Dawson 记录三维打字机放弃自建字符网格后，以 TextEditingController 为单一状态源，读取真实 RenderEditable 光标几何驱动字车与露纸滚动，并解耦中文输入法组合态与机械击键动画的过程。 Wed, 04 Nov 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/keep-alive-tabs-state-sync-stale-response/ https://ramdom.me/posts/keep-alive-tabs-state-sync-stale-response/ Ram-Dawson 结合多 Tab 页面保活与列表刷新场景，分析双向通知遗漏、异步回调修改旧对象与慢查询回退新状态的成因及协调方法。 Sun, 25 Oct 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/flutter-textpainter-default-text-style-clipping/ https://ramdom.me/posts/flutter-textpainter-default-text-style-clipping/ Ram-Dawson 定位自定义 Tab 单行标题在真机被截断的原因：TextPainter 不会自动继承组件树的 DefaultTextStyle 与字体缩放，测量与绘制必须共用最终样式。 Fri, 04 Sep 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/flutter-scene-runtime-state-boundary-fixes/ https://ramdom.me/posts/flutter-scene-runtime-state-boundary-fixes/ Ram-Dawson 记录向 flutter_scene 提交的三处运行时状态一致性修复：可更新网格缩容时的环形缓冲脏区间夹紧、异步场景加载失败后的模板持有计数释放，以及 Rapier 原生快照恢复后的刚体注册表对齐。 Mon, 10 Aug 2026 00:00:00 +0000 三维与渲染 https://ramdom.me/posts/native-shared-library-dt-needed-android-linux/ https://ramdom.me/posts/native-shared-library-dt-needed-android-linux/ Ram-Dawson 通过最小 C 动态库复现与 readelf / ldd 产物检查，解释 Linux 宿主全局符号范围如何掩盖缺失的 DT_NEEDED 依赖，以及 Android 命名空间隔离为何直接报错。 Thu, 06 Aug 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/flutter-impeller-manual-mip-chain-lod-probe/ https://ramdom.me/posts/flutter-impeller-manual-mip-chain-lod-probe/ Ram-Dawson 在 Android Vulkan 下遇到手工上传的完整 mip chain 不随 roughness 或 textureLod 变化时，如何通过纯色 LOD 探针、2D 图集控制路径与同版本本地引擎对照定位采样器限制。 Mon, 03 Aug 2026 00:00:00 +0000 三维与渲染 https://ramdom.me/posts/flutter-tools-adb-device-parsing-and-fvm-sdk/ https://ramdom.me/posts/flutter-tools-adb-device-parsing-and-fvm-sdk/ Ram-Dawson 记录无线 ADB 设备在 adb devices -l 中可见却被 Flutter 丢弃的原因，从 AOSP 列宽格式定位到提交上游 PR Tue, 14 Jul 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/flutter-video-page-route-visibility-lifecycle/ https://ramdom.me/posts/flutter-video-page-route-visibility-lifecycle/ Ram-Dawson Flutter 中被新路由覆盖或切走的页面不会触发 dispose；记录如何用有效可见性统一管理实时视频流、双向对讲、录像与横屏锁定。 Mon, 25 May 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/flutter-androidview-video-surface-lifecycle/ https://ramdom.me/posts/flutter-androidview-video-surface-lifecycle/ Ram-Dawson 排查 AndroidView + SurfaceView 在横竖屏切换与路由进出时触发的引擎层 getWidth 空指针崩溃，记录向 TextureView 双分支桥接改造的判断过程与边界。 Mon, 25 May 2026 00:00:00 +0000 客户端开发 https://ramdom.me/posts/cross-platform-ui-dx-flutter-compose-maui/ https://ramdom.me/posts/cross-platform-ui-dx-flutter-compose-maui/ Ram-Dawson 结合 Flutter 跨版本项目、Android Studio 下的 Jetpack Compose 界面开发与 .NET MAUI 尝试，围绕 UI 编写、IDE 预览、热重载与插件维护记录实际体验。 Sun, 25 May 2025 00:00:00 +0000 开发随笔 https://ramdom.me/posts/flutter-xiaomi-screen-mirror-crash/ https://ramdom.me/posts/flutter-xiaomi-screen-mirror-crash/ Ram-Dawson Android Studio 开启小米设备屏幕镜像后点击画面即断连（ScreenSharingAgent exit code 134），记录在多台机型及 HyperOS 3/4 上通用的省电策略解决方法。 Sun, 25 May 2025 00:00:00 +0000 客户端开发 https://ramdom.me/posts/esrgan-tf2-tflite-flutter-tiling/ https://ramdom.me/posts/esrgan-tf2-tflite-flutter-tiling/ Ram-Dawson Kaggle 上的 ESRGAN-TF2 TFLite 模型输入固定为 50×50，记录张量读写、边缘补齐、分块推理与重叠裁剪去接缝的实现过程。 Fri, 16 Aug 2024 00:00:00 +0000 AI 与模型