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This guide explains how to use Android Debug Bridge (ADB) commands to install and uninstall APKs, list installed packages, and start or stop applications on a connected device, providing essential tools for mobile developers and testers.
This guide explains how to set up Kivy on macOS and Linux, create a simple Python hello‑world mobile app, test it, install and use Buildozer to package the app into an Android APK, and troubleshoot common build issues, providing full command‑line examples and code snippets.
This article explains how the Android resources.arsc file is generated, identifies the problem of duplicate and uncompressed image resources in multi‑module projects, and presents a Gradle‑based solution that inserts a custom task after processReleaseResources to deduplicate resources, compress images using pngquant, guetzli and cwebp, and repack the .ap_ files, resulting in significant APK size reduction.
This guide explains how to set up the Kivy framework, write a simple Python app, install required dependencies on macOS, Linux, and CentOS, and use Buildozer to package the app into an Android APK, including troubleshooting tips for common build errors.
This article details the systematic reduction of the JD Finance Android app's APK size from 117 MB to 74 MB between 2019 and 2022, covering background analysis, APK and SDK component breakdown, a series of optimization techniques—including image processing, resource inlining, compression tools, dynamic SO loading, and pluginization—plus governance, results, and future plans.
DeWu reduces its APK size by removing unused plugin resources, compressing images with WebP, Guetzli, PNGQuant and Gifsicle, deduplicating and obfuscating ARSC entries, applying 7‑zip compression, delivering large assets dynamically, and continuously cleaning unused resources through compile‑time checks and runtime scanning.
Android reverse engineering involves extracting an APK, decompiling it with tools like apktool, dex2jar, or JADX, analyzing and modifying Smali or Java code, recompiling and signing the package with jarsigner, and testing the changes, while using adb commands to retrieve the original file and emphasizing deeper analysis for robust security.
This tutorial explains how to set up the Kivy framework on macOS and Linux, write a simple Python hello‑world app, test the installation, install and configure Buildozer, and use it to package the app into an Android APK while addressing common build issues.
The workflow extracts PAD assets from an AAB, builds a universal APK with bundletool, runs the legacy APK split pipeline, then reassembles a new AAB by merging the split base module with the saved PAD zip, preserving Play Asset Delivery for Google Play compliance.
The article details Baidu App’s third‑stage Android APK size reduction, explaining the res/ and assets structure, reviewing AGP’s OptimizeResources, ShrinkResources and new flags, and describing a custom AAPT2‑based tool that shortens paths and filenames, removes extensions, collapses names, uses sparse encoding, integrates third‑party guards and image‑compression techniques to significantly shrink the package.
This article walks through using the Kivy framework and Buildozer tool to create a simple Python mobile app, covering environment setup on macOS and CentOS, writing a hello‑world program, testing it, packaging it into an APK, and troubleshooting common build issues.
An AOSP commit proposed by a Xiaomi engineer to prohibit shell extraction of installed APKs—citing potential IP leakage—was rejected after receiving only the author’s support and two opposing votes, with reviewers arguing that such restrictions are ineffective, could be bypassed, and should be handled via DRM or device‑specific policies.
The Baidu App team applied a systematic, sustainable approach—combining Dex, resource, and native‑library optimizations with tools such as R8, ProGuard, AndResGuard, and custom compression pipelines—to shrink the APK by several megabytes, improve download conversion, and establish reusable mechanisms for future builds.
This article introduces DexInjector, a tool for directly instrumenting Android APK dex files to insert logging, performance monitoring, and third‑party hooks without recompiling, explains the underlying technical research, design choices, implementation details, handling of method limits, string jumbo, obfuscation, class conflicts, and provides code examples and workflow diagrams.
The platform optimizes Android APK size by shrinking resources, compressing images, filtering native libraries, and applying selective byte‑code reductions, then continuously monitors package composition, trends, and business‑line usage, alerting teams to abnormal growth while preserving functionality for large‑scale apps.
This article investigates the Android dex2oat compilation restrictions introduced for targetSdkVersion ≥ 29, analyzes their impact on app performance, explores SELinux enforcement, and presents a practical solution using system commands and binder calls to trigger dex2oat compilation for both primary and secondary APKs, improving load and runtime speed.
This article describes a method for analyzing Android APK size at the library level by extracting and parsing Gradle intermediate merge files, mapping resources, assets, native libraries and Java resources to their originating libraries, and linking them to maintenance teams for precise package‑size reporting.
This article explains how to perform static analysis of Android APK files with Python, covering environment preparation, unpacking the APK, extracting basic metadata, analyzing classes and methods using the Androguard library, and generating a method call graph for deeper reverse‑engineering insights.
This guide demonstrates how to clone the HelloWorld Android Gradle repository, build the project using Gradle, locate the generated debug and release APK files, upload them to Fir for distribution, and verify the installation, providing all necessary commands and output details.
This guide explains how to configure an Android project, write Python upload scripts for Fir.im and Pgyer, create a Jenkinsfile with checkout, build, and upload stages, set up Jenkins global variables and pipeline parameters, and run a full build‑test cycle to publish APKs via QR codes.