This article explains three Android CPU performance testing techniques—using adb dumpsys cpuinfo, reading /proc/pid/stat, and employing the top command—detailing their procedures, advantages, limitations, and how to aggregate per‑process data for accurate app‑level metrics.
This article chronicles Alibaba's multi‑year journey in Android hot‑fix technology, compares early solutions like Dexposed, AndFix and others, and details Sophix's non‑intrusive design that unifies code, resource and native library patching while maintaining compatibility, security and ease of use across Android versions.
This article walks through the author's experience of exploring WeChat Mini Programs as a front‑end framework, comparing it to Vue and React Native, and provides a step‑by‑step tutorial for creating a basic catalog page with code snippets and screenshots.
The article shares a developer’s experience at WWDC 2017, highlighting Xcode 9’s new Swift support, Wi‑Fi debugging, iOS 11 requirements, CoreML and ARKit introductions, and practical advice for presenting apps to Apple’s design team.
This tutorial demonstrates how to build an Android login interface using Kotlin, covering class inheritance, nullable variable declarations, lambda listeners, network requests, and an extension function that adds a toast method to all Activity subclasses, with full source code examples.
This article provides Android developers with practical guidance on using Kotlin instead of Java, covering basic syntax, data classes, singletons, activity navigation, Retrofit with OkHttp, and RxJava to streamline development and improve productivity.
This article introduces core Kotlin language features—including function definitions, nullable types and null‑checking, the use of the in keyword for ranges and collections, type checking with is, and the when expression—providing code examples and explanations for Android developers.
This article explains how Dagger 2 structures dependency injection for Android apps using Modules, Components, and Subcomponents, illustrating their roles with diagrams, comparing them to manual injection, and showing how they clarify code dependencies while keeping runtime overhead minimal.
This article presents a detailed analysis of the evolution from MVC to MVP in Android hotel‑business development, illustrates common pitfalls such as bloated controllers and context loss, introduces Ctrip's extended MVCPI pattern with weakly‑typed IView, Presenter and Interactor components, and provides concrete code examples for each architecture.
The article compares Swift and Kotlin, highlighting their similarities and differences for developers familiar with either language, and argues that programming languages are merely tools that should be chosen based on platform needs rather than personal bias.
This article shares the most frequent Kotlin-related issues encountered in Android projects—including IDE conversion bugs, DexGuard obfuscation crashes, debugging difficulties, missing ternary operators, and other language quirks—along with practical solutions and code examples to help developers avoid them.
The iOS Memory Management Seminar by Meituan provides a comprehensive overview of fundamental concepts, including manual reference counting and automatic reference counting, explains retain cycles and autorelease mechanisms, and delves into advanced memory‑management techniques to help developers write efficient, leak‑free applications.
The article introduces Kotlin, explains why it gained sudden popularity after Google’s I/O announcement, shares the author’s experience of adopting Kotlin in large Android projects, discusses its impact on bug rates and developer productivity, and encourages developers to explore the language responsibly.
This article explores Kotlin's rise as a first‑class Android language, highlighting its concise syntax, null‑safety, extension functions, functional programming features, seamless Java interoperability, performance parity, and practical tips for teams transitioning from Java to Kotlin.
This article introduces Kotlin as a first‑class language for Android, explains why developers should adopt it, and provides a step‑by‑step guide to setting up Android Studio for Kotlin development, including plugin installation, project conversion, and configuration details.
This article explores Kotlin’s origins, concise syntax, null‑safety, extension functions, functional features, seamless Java interoperability, performance parity with Java, and growing adoption in Android development, highlighting why developers are rapidly switching to this modern language.
The article introduces Zhao Xingu's presentation on how Ctrip's wireless R&D team designed and implemented the Mobile Delivery Continuous Platform (MCD) to support hundreds of engineers across multiple product lines, covering integration, testing, release, and operation for efficient mobile app delivery.
The article shares practical experiences from large‑scale mobile client development, covering user crash scenarios, non‑intrusive data collection, AOP‑based interaction and network monitoring, performance instrumentation, and data aggregation techniques to improve debugging efficiency and operational reliability.
This article reviews a year of development on Tencent's Tinker hot‑fix framework, detailing ecosystem growth, major technical pitfalls on Dalvik, ART, OEM integrations, and the practical solutions that emerged to keep Android apps stable and updatable.
The article explains Android 6.0’s audio volume architecture, detailing how streams, devices, and per‑stream volume indices are defined, cached, persisted, and modified via AudioManager or AudioTrack/MediaPlayer, and how these changes travel through AudioService, AudioPolicy, and AudioFlinger to the hardware.
This article explains how React Native leverages iOS’s JavaScriptCore to enable seamless JavaScript‑to‑Objective‑C communication, covering module registration, callback handling, event listening with NativeAppEventEmitter, building native UI components, the module configuration table, and the detailed call flow between JS and native code.
Despite widespread reliance on manual UI testing, this article details how the author’s team built an Espresso‑based test platform that achieves 80‑90% functional coverage, introduces the ETP design, explains single‑page testing, test flows, and shares practical solutions to common Espresso pitfalls.
This article reviews JavaScript's rapid expansion beyond browsers, highlighting Node.js's server dominance, the shift from Cordova to PWAs and native frameworks for mobile, the rise of Electron and NW.js for desktop, and emerging frontiers like chatbots, VR, and IoT.
The article explains Android’s APK Signature Scheme v2—introduced in Android Studio 2.2—its performance and integrity benefits over v1, details the signing block structure and verification steps, and demonstrates how to embed and retrieve custom channel data within the v2 block while preserving successful verification.
This guide explains how Android developers can understand APK structure and apply a range of techniques—such as removing unused resources, compressing images, using vector drawables, and optimizing native code—to significantly reduce the size of their application packages and improve download and install performance.
The article reviews how JavaScript has expanded from the browser into server‑side, mobile, and desktop ecosystems in 2017, highlighting Node.js growth, the shift from Cordova to PWAs and native frameworks, and emerging uses in VR, chatbots, and IoT.
This article details the evolution of the Android Recorder used in the FluentSpeak app, covering API choices, AudioFocus handling, processing patterns, encountered challenges such as encoder blocking, testing difficulties, and native crashes, and presents solutions like ProcessThread, AudioProcessor abstraction, WavFileRecorder, and ServiceWrapper to improve reliability and extensibility.
This article explains how React Native adopts the CSS Flexbox model for layout, details the Flexbox algorithm and properties, and demonstrates using the Dimensions and Platform APIs to build cross‑platform responsive interfaces with practical code examples.
This article explains the Android Soong build system, its JSON‑like Android.bp file format, module definitions, variables, comments, types, operators, default modules, formatting tools, conversion from Android.mk, build logic, and common questions for mobile developers.
This article explores how JavaScript has become integral to client‑side development, introduces the JavaScriptCore framework that enables iOS apps to execute JavaScript, and provides detailed guidance on its architecture, core classes, concurrency model, object bridging, memory management, and error handling.
This article outlines comprehensive Android naming and code style standards—including file encoding, class and method naming, resource naming, and comment conventions—to help development teams achieve consistent, maintainable code and improve collaboration efficiency.
This article introduces CTrip's independently built WeChat mini‑program framework, detailing its CPage architecture, middleware, CWX extensions, component APIs, common development problems such as rendering white‑screens, page‑level limits, authorization dialogs, package size constraints, and the solutions and future plans adopted to overcome them.
The author recounts a three‑year career path from a fresh Android developer in Shanghai to a CTO, sharing interview struggles, project experiences, hiring strategies, agile management insights, and personal growth reflections that can guide aspiring software engineers and tech leaders.
iOS renders views and animations through a multi‑stage pipeline—layout, backing image creation, preparation, commit, then GPU OpenGL compositing—so excessive layers, overdraw, off‑screen rendering, or image decompression can cause frame drops, while marking views opaque, reducing transparency, and using Instruments’ Core Animation and GPU Driver tools help diagnose and optimize performance.
This article examines less‑common mobile overlay patterns—half‑screen pages, ActionSheets, BottomSheets, and Popovers—explaining their use cases, design advantages, and best‑practice tips for iOS and Android applications.
Atlas, Alibaba’s open‑source Android container framework, enables large‑scale team collaboration through componentization, dynamic deployment, and plug‑in isolation, offering parallel development, rapid iteration, and on‑device updates for apps targeting Android 4.x and above.
Apple warned iOS developers that using hot‑update solutions like JSPatch and Rollout violates App Store policies, prompting a community stir and leading Bugly to advise switching to a safe SDK while providing detailed integration instructions for both CocoaPods and manual setups.
The article recounts how a team of mostly iOS developers built the LightOxygen Android v1.0 app using React Native, detailing their version planning, feature set, React Native’s strengths and shortcomings, and future roadmap while sharing practical development insights.
Qunar React Native (QRN) is a customized cross‑platform mobile framework built on React Native that unifies iOS and Android UI, reduces app size, supports hot updates, offline bundles, custom IconFont, and has been deployed at massive scale within Qunar’s travel app.
Android M introduced a dynamic runtime permission model that separates normal and dangerous permissions, requiring apps like QQ Music to implement runtime checks, adapt startup and feature‑triggered requests, use a permission‑guard shell, and handle OEM‑specific fragmentation issues such as sensor, shortcut, and floating‑window permissions.
The 2016 Android & iOS Mobile App Quality Report shows a surge in device numbers, highlights higher crash rates for games versus apps, identifies common exceptions like NullPointerException, outlines manufacturer market shares, OS version distribution, and offers actionable insights for developers to improve stability across platforms.
This article explains how to transition from traditional MVC architecture to Redux when building a React‑Native mobile app, detailing the analogies between actions, reducers, stores, and components, and provides step‑by‑step code examples for implementing state management in JavaScript.
This article examines the concept, benefits, and practical implementation of A/B testing in iOS development, covering design considerations, code organization patterns such as selector caching, strategy pattern, and protocol dispatchers, as well as related build‑time concerns like static‑library merging and CocoaPods subspecs.
This article traces the four stages of mobile terminal development, compares major smartphone operating platforms, and details Renren's practical experiences in unifying architecture, server design, and cross‑platform mobile development from JavaME browsers to iPhone and Android solutions.
This article explains the RN and QRN loading processes, analyzes the causes of long white‑screen times, and presents practical techniques such as JS bundle splitting, Bridge pre‑loading, lazy requires, and asynchronous component registration to significantly reduce QRN first‑screen loading latency.
The article introduces Google’s Espresso framework for Android UI automation, explains how to configure Gradle dependencies and the test runner, and guides developers through writing robust test cases by locating views, performing actions, and asserting states with onView().perform().check(), including a complete @Rule‑based example.
This article compiles a comprehensive list of frequently encountered problems and practical solutions for WeChat Mini Program development, covering script environment limitations, navigation constraints, styling rules, network request handling, component usage, platform-specific bugs, and performance tips to help developers build stable mobile applications.
The article details Qunar's large‑scale adoption of React Native, analyzes the performance shortcomings of the standard RN ListView, and presents the QRN ListView and QRN InfiniteListView optimizations that improve scrolling smoothness, memory usage, and fixed‑height row handling on mobile devices.
The article explains WeChat Mini Program development through MVC, detailing data acquisition methods, the WXML/WXSS UI stack, unidirectional interaction via setData, a data‑driven architecture that simplifies basics but limits complex UI control, and highlights common pitfalls such as compatibility, IDE instability, and scarce resources.
This article shares practical insights on iOS app architecture, covering network API handling, page presentation, local data persistence, dynamic deployment, team collaboration, and a step‑by‑step methodology that emphasizes problem definition, modularization, dependency management, future‑proofing, testing, and performance optimization.
This step‑by‑step tutorial shows how to create a functional WeChat Mini Program in about an hour by cloning Tencent Cloud’s Photo Album demo, configuring the IDE, deploying a Node.js backend with Nginx and HTTPS, setting up COS storage, and linking the Mini Program to the server.
The article explains how WeChat Mini Programs have transformed Chinese social and business ecosystems, outlines why developers should care, compares product logic with apps and H5, and reviews several cloud‑based development solutions—including Tencent Cloud, LeanCloud, and third‑party tools—providing practical guidance for rapid demo creation.
This article explains how Groovy parses Android-specific DSL in Gradle build files, covering DSL benefits, command chains, operator overloading, delegate mechanisms, and step‑by‑step execution of buildscript, repositories, dependencies, and tasks to help developers customize their Android build process.
The article introduces Qunar's Hy hybrid mobile framework, detailing its motivation, cross‑platform architecture, progressive component design, integration of Web and Native capabilities, evolution from Hy 1.0 to Hy 2.0 with React, and its relationship to React‑Native, highlighting how it enables fast, low‑cost mobile development.
The article introduces Qunar’s Android cloud testing platform, explaining the challenges of device compatibility, detailing custom Monkey and automated test case features, describing device management, presenting usage data, outlining client‑server architecture, integration steps, and future expansion plans such as iOS support and high‑end device rental.
This article explains common Android performance problems such as high battery consumption, slow startup, memory leaks, and UI jank, and provides step‑by‑step methods using Android Studio, MAT, GPU rendering analysis, FPS Meter, and command‑line tools to locate and resolve these issues.
In his 2017 WeChat Open Class Pro talk, Zhang Xiaolong explained that mini programs are lightweight, QR‑code‑launched tools designed for instant, “use‑and‑go” tasks—without installation, app‑store distribution, or proactive push—emphasizing efficiency, rational product decisions, limited sharing, and seamless integration with public accounts to serve users and businesses alike.
The article reviews Meituan‑Dianping’s tech blog evolution since 2013, highlights the ten most‑read posts of 2016 across backend, big data, mobile, and AI, and outlines emerging focus areas such as testing, cloud storage, and algorithmic innovations for the coming year.
Android Auto, Google’s car‑infotainment SDK launched in 2014, lets phones running Android 5.0+ connect via USB or Wi‑Fi to a head‑unit that displays voice, navigation, messaging, music and phone functions, while developers can only create music or messaging apps using a fixed UI, media service, and MediaSession interfaces.
After Apple’s 2017 ATS enforcement requires all iOS apps to use HTTPS, developers must obtain an SSL certificate—such as a free Let’s Encrypt or Tencent Cloud‑issued GeoTrust certificate—install it on their web server (e.g., Nginx), optionally configure CDN encryption, and verify compliance with Apple’s security checks.
Android applications often suffer from high battery drain, slow launches, and UI lag, so this article explains three practical methods—using ADB commands, screenrecord video analysis, and code instrumentation—to measure and analyze app startup time, with detailed steps, interpretation of timing metrics, and visual examples.
This article provides a detailed walkthrough of building an iOS live‑streaming application, covering the end‑to‑end workflow from video/audio capture, encoding, and transmission to playback, while explaining key protocols, container formats, GPUImage processing, and code examples for developers.
During Alibaba’s 2016 Double 11 shopping festival, the Weex framework was deployed at massive scale, covering over 99% of pages, delivering high‑performance native‑like experiences, supporting complex interactions, ensuring stability through memory management, pre‑loading and extensive testing, while outlining architecture, tooling, and optimization strategies.
This article explains what memory leaks are on Android, outlines their common sources, introduces various detection tools such as Lint, StrictMode, LeakCanary, Android Memory Monitor, MAT and adb commands, and provides practical strategies for locating and fixing leaks in mobile apps.
This article introduces the Wepy framework for building WeChat mini‑programs, covering its architecture, demo projects, quick start commands, coding conventions, component communication, data binding, NPM integration, and performance optimizations to help developers create modular, ES6‑based mobile applications efficiently.
The article explains how Facebook’s Buck build tool accelerates Android development by leveraging fine‑grained parallelism and an O(NlogN) DexMerge, delivering up to 40% faster full builds than Gradle, while covering its architecture, installation, K歌 project implementation, and integration challenges such as manual dependencies and Windows support.
This article explains why iOS apps must use the In‑App Purchase API, outlines the configuration and purchase flow, details subscription handling, receipt verification, security risks, pricing models, and common pitfalls for both iOS and Android platforms.
This article walks through the acquisition of Xamarin by Microsoft, the integration of Xamarin Studio into Visual Studio for Mac, provides step‑by‑step installation instructions, highlights the new project templates—including .NET Core and cross‑platform solutions—and shares early impressions of the IDE’s potential for mobile development.
The 2016 Double 11 event showcased Alibaba's cutting‑edge mobile innovations—including VR shopping via Buy+, the DIVA visual augmentation platform, rapid mobile marketing delivery, and the high‑performance Weex framework—demonstrating how interactive technology can transform large‑scale e‑commerce experiences.
This article details Ctrip's adoption of React Native, explaining why it was introduced, the framework and tooling built around it, the performance and stability problems encountered, the various bundle‑splitting and engine‑caching solutions applied, and the roadmap for further cross‑platform enhancements.
This article shares Ctrip's experience of adopting React Native for its train ticket business, covering why RN was chosen, its current state, the Ctrip RN framework, practical implementation details, encountered pitfalls, and various optimization techniques to achieve near‑native performance and rapid iteration.
This article explains how iOS App Slicing works, how to use Xcode's Asset Catalog to manage image resources, and how to automate the creation of device‑specific assets and the Assets.car file through a Build‑Phase Run Script, addressing challenges in large‑scale apps.
This guide walks developers through the complete process of registering, configuring, developing, and submitting a WeChat Mini Program for review, illustrating each stage with clear screenshots to ensure a smooth integration experience.
This article explains how to use Apple's App Slicing feature on iOS by managing image resources with Asset Catalog, automating the process through Xcode build‑phase scripts, generating the Assets.car file with actool, and addressing practical considerations for large, multi‑module applications.
This article provides a comprehensive guide to Android app compilation, detailing the step‑by‑step build process, the use of Ant and Gradle tools, configuration of build.xml and build.gradle files, and essential settings such as obfuscation, signing, multidex, and code coverage to streamline CI pipelines.
From its 2009 launch with a simple WAP site to handling over 100 million daily active users, Mobile Taobao’s architecture evolved through four stages—introducing API gateways, HTML5/WebApp integration, Bundle deployment, and the PackageApp system—while building comprehensive R&D, testing, operations, and release support.
Android Studio 2.2 introduces official native development support with CMake and ndk‑build integration, Gradle‑packaged .so libraries, LLDB hybrid debugging, enhanced C/C++ editing, easy linking of existing native code via IDE or build.gradle, new externalNativeBuild and abiFilters settings, and a concise CMake workflow.
The article chronicles Ctrip's mobile app architecture evolution—from a simple MVC design in 2011, through a tightly coupled early server model, to a modular API‑Gateway‑based backend, intelligent downgrade mechanisms, multi‑Dex loading, and finally a bundle‑oriented dynamic plugin framework—highlighting the technical challenges, solutions, and lessons learned for large‑scale mobile development.
This article explores the evolution of WeChat Mini Programs, tracing their roots from early web app technologies like Java Applets and Flash to modern React‑Native‑based development, and discusses their potential impact on users, enterprises, and independent software vendors.
This article compares the MVC, MVP, and MVVM architectural patterns for Android mobile development, explains their differences, and provides step‑by‑step code examples for implementing MVP and MVVM, including model, view, presenter layers and data‑binding configuration.
This article examines the design of WeChat's cross‑platform XLog module, detailing how it balances performance, reliability, and security through memory buffering, mmap usage, and efficient compression to provide smooth, loss‑less logging for mobile applications.
This article summarizes Alipay’s evolution into a super‑app, detailing its multi‑stage architecture, performance and power optimizations, stability improvements, and the comprehensive operations system that monitors and mitigates issues across millions of users.
This article outlines essential security checks for Android components—including Activity, WebView, BroadcastReceiver, Service, and ContentProvider—highlighting common vulnerabilities such as exported components, SSL handling, saved passwords, implicit intents, and unsafe broadcast APIs, and provides practical code examples and mitigation steps.
This article enumerates and briefly describes the 18 open‑source iOS libraries and components that were used during the development of the NetEase News iOS application, covering networking, UI, audio, image handling, and utility functions.
This article recounts WeChat’s two‑year journey developing the open‑source Tinker hot‑patch framework for Android, detailing the challenges of native vs Java approaches, performance‑critical DexDiff algorithms, platform‑specific issues on Dalvik, ART, and Android N, and the solutions that achieved a high‑availability, low‑overhead patch system.
This guide explains how to configure a cross‑platform CI pipeline for iOS apps using VSTS/TFS, covering project setup, Git repository linking, agent installation on macOS, build definition creation, variable configuration, and triggering builds to produce signed IPA packages.
This tutorial walks you through downloading, installing, and patching the WeChat Mini Program development tool on Windows, including version selection, file replacement, project creation, code editing, and debugging, plus useful resource links for further learning.
This guide walks you through downloading, installing, cracking, and configuring the WeChat Mini Program development tool on Windows, showing how to replace necessary files, log in, create a simple project, and debug it using the built‑in simulator.
Android’s Data Binding framework links code and XML UI elements through compile‑time generated binding classes, supporting one‑ and two‑way bindings, reducing boiler‑plate, improving performance via a single view‑hierarchy traversal, offering expressive layout expressions, event binding, observable data models, dirty‑flag rebinds, and built‑in null safety.
The article examines Android power consumption by analyzing the BatteryStatsHelper source code, explains how CPU, wakelock, Wi‑Fi, mobile data and sensor usage contribute to energy drain, and demonstrates practical measurement techniques using adb commands, dumpsys batterystats, and third‑party tools such as PowerTutor and BetterBatteryStats.
This article analyzes Meituan’s Robust hot‑patch solution, detailing its Instant Run‑inspired code injection, patch generation, production issues like method‑count limits and ProGuard inlining, performance impact, and real‑world deployment metrics, offering practical insights for Android developers.
This article explains how to quantify Android app frame rates, understand FPS concepts, calculate frame timing, and apply three practical methods—including GPU rendering profiling, adb gfxinfo, and SurfaceFlinger latency commands—to monitor and improve smoothness across multiple devices without rooting or API restrictions.
As smartphones become full‑featured computers, traditional PC/M functionalities are migrating to mobile apps, causing teams to face pre‑, mid‑, and post‑development challenges such as coordination friction, technical debt, and high coupling, and the article proposes concrete improvement measures including clearer collaboration, reduced coupling, parallel versioning, and iterative release cycles.
This article explains Android performance testing challenges, details ANR causes and types, describes tools like TraceView and ANR‑WatchDog, and introduces VSync‑based smoothness metrics using Choreographer to detect frame skips and improve app responsiveness.
This guide walks developers through creating a Wear OS “Hello World” app, handling ambient mode, using BoxInsetLayout, configuring Gradle for phone‑watch communication, implementing MessageApi/DataApi with GoogleApiClient, exploring Wear 2.0 features, and packaging the watch APK for publishing on Google Play.
The article summarizes Wu Zhihua's presentation at the WOT2016 summit, detailing the Weex cross‑platform framework, its ecosystem, performance optimizations, competitive advantages, challenges faced during Alibaba's Double‑11 promotion, and the project's future development goals for the next one to two years.
This article explains the concept of an EventBus as an observer‑pattern based communication mechanism for Android components, illustrates it with a newspaper subscription analogy, and provides step‑by‑step Java implementation details—including registration, unregistration, and posting of events using reflection—plus integration tips within an Activity lifecycle.
The article examines typical coordinate‑system and accuracy problems encountered when implementing location and map features on iOS and Android, explains why they occur, and shares Ctrip's practical solutions including coordinate conversion, Wi‑Fi handling, and WebView‑based map rendering.
LightListen adds flexible day/night and brand‑color switching by combining static XML styles and themes for basic modes with a dynamic configuration system—using shared‑preference color storage, view processors, and a traversal controller from the app‑theme‑engine library—to apply colors at runtime with minimal code duplication.
This article shares the experience of a Qunar hotel team refactoring their hotel homepage with React Native, detailing the initial native‑style approach, challenges with Redux, robustness and animation performance, and the subsequent architectural redesign that improved maintainability and user experience.
