Android Weekly Issue 2025-13

Word count: 633Reading time: 3 min

 2025/04/06

Android Weekly is a weekly newsletter focused on the Android technical ecosystem, updated every Monday. This newsletter delves into high-quality technical content in areas such as Android system architecture, performance optimization, cross-platform development, and AI, providing continuous knowledge updates and technical insights for developers.

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Technical Articles

Perfetto Pin Area Height Adjustment Tool — Making Performance Analysis More Efficient: When analyzing traces, we often pin threads of interest. However, the default Pin area in Perfetto is limited to 40% of the browser height. This tool helps bypass that limit to view more pinned threads simultaneously.
Mobile OS Performance Design 5 - OS Quality Improvement and Technical Metric Optimization: Exploring how to define and observe OS-level technical indicators and the challenges of resource allocation between the system and third-party applications.
Android Deprecating “Screen Orientation Lock” API: Adapting Apps for Large Screens, PC, and XR: Android is phasing out legacy APIs that limit resizing and orientation. Developers must now adapt for foldables and desktop-like environments.
Android x HarmonyOS x AI Tech Weekly - Issue #5.
Kernel Preemption: Making the World Better | Linux Kernel: Basics of Linux kernel preemption, including types (Voluntary vs Mandatory), timing, and configuration nuances.
MTK Camera Photo-to-Video Switching: Systrace Dismantling Analysis: Detailed phase-by-phase trace analysis of mode switching in MTK camera stacks.
The Story of PopTranslate Development: A macOS native AI utility for translation and explanation.
Android Time Statistics (Metrics): Using OnFrameMetricsAvailableListener (API 24+) to measure View tree draw times and Choreographer for legacy versions.
Comprehensive Tutorial for Flashing AOSP 14 on Pixel 8 Pro & Unbricking.
Detailed Explanation of Unified Rendering via HarmonyOS: How Huawei’s RenderService process solves animation stutter and reduces GPU load using a unified rendering tree.
App-Side Performance Optimization for the Android Rendering Pipeline: Proposing a three-thread model (Business Main, UI Record, and Render) to offload heavy tasks and mitigate ANR risks.
Linux Kernel Tracing: Analysis of Perf Implementation Principles.
LWN: Tackling Frozen Pages in Network Code: 6.14 kernel optimizations for memory safety during high-throughput networking.
Android Weekly Issue #669.
Flutter Animation Tutorial (14): Tween, Physics, Implicit vs Explicit, and Hero animations.
RecyclerView — ItemTouchHelper: Source analysis of drag-and-swipe gestures.
Why Exercise Caution with Skia Multi-Threaded Rendering?: Analyzing the Single User Principle in Skia and how AOSP implements thread-safety via CalledFromWrongThreadException.
Page Allocation for Address Space Isolation.
Android V App Cold Start (8) — Animation End: WMShell/WMCore interaction and fixed rotation cleanup.
Flutter Pseudo-3D Drawing #1 | 3D Space: Projecting 3D points to 2D canvas.
Kotlin Improvements for Android and Language Evolution: Efficiency and quality gains from 2017 to the current tech stack.

Miscellaneous

Programmer’s Self-Cultivation - Ch 2: Compilation and Linking: Preprocessing, assembly, and linking steps.
March Report: 9-Year Programmer’s Summary: Reflections on AI trends and life events.
Experience Snippets Weekly #226.
How Deep Can the Self-Proof Trap Go?: Strategies for escaping logical traps and subjective arguments.
Python Trend Weekly #96: What Exactly is MCP?.

AI

Observations from an AI User: Moving from skepticism to reliance on LLMs for code analysis and rapid prototyping.
BabelDOC: A powerful tool for bilingual scientific paper translation and PDF structure preservation.
AI Computing Democratization Part 7: Triton and Python eDSLs: Bridging the gap between ease of use and performance with specialized Python dialects like Triton.
DeepSeek AI Input Method for Android.
Prompt Engineering Secrets of Devin 2.0: Role definitions, structure, and safety protocols for the “first AI software engineer.”