A knowledge-sharing platform for Sohu's technology products. As a leading Chinese internet brand with media, video, search, and gaming services and over 700 million users, Sohu continuously drives tech innovation and practice. We’ll share practical insights and tech news here.
This article explains how to replace tangled if‑else code by applying four elegant design solutions—Strategy pattern, Java SPI mechanism, Chain of Responsibility, and a rule engine—showing concepts, advantages, and practical Java examples for cleaner, more maintainable software.
This comprehensive guide explores Tomcat’s mature architecture, detailing its connector and container components, the underlying design patterns such as composite, observer, and template method, and the custom class‑loading mechanisms that enable modularity, hot‑reloading, and isolation for Java web applications.
Jetpack Compose dramatically improves Android UI development by offering declarative syntax, faster development cycles, reduced code size, superior performance benchmarks over RecyclerView, advanced state management with Snapshot System, powerful animation APIs, modular architecture techniques, and practical migration strategies, while also highlighting its limitations compared to traditional View and HarmonyOS ArkUI.
This article dives deep into Swift's Dictionary implementation, explaining its underlying hash‑table structure, memory layout, variant storage, probing strategies, copy‑on‑write semantics, conflict resolution, load‑factor handling, and automatic resizing, all illustrated with real code and debugger screenshots.
This tutorial explains how to implement a firework‑style like animation in Android by defining particle objects, drawing them on a Canvas, controlling their motion with ValueAnimator and various interpolators, and assembling the animation sequence to produce a festive, high‑frame‑rate visual effect.
This article explains how to replace inefficient global searches for third‑party APIs with a TypeScript‑based solution that parses source files into an AST, traverses import declarations, distinguishes import styles, records call counts and line numbers, and overcomes symbol resolution challenges using the TypeScript compiler API.
This article examines the challenges of distributed ID generation, compares common solutions like UUID and Snowflake, and presents a custom approach that combines MySQL segment tables, Redis caching, and Nacos switches to achieve high‑performance, strictly incremental IDs with automatic failover.
This article demonstrates how to apply the Chain of Responsibility design pattern together with SOLID principles to refactor a video upload, transcoding, review and publishing workflow, providing clear Java examples, UML diagrams, and Spring integration for a maintainable, extensible solution.
This article explains why Android only supports Vector drawables, explores how to load and render SVG files using AndroidSVG, Glide, and PathView, discusses custom SvgDrawable attempts, introduces iconfont for vector icons, and provides a comprehensive comparison of Android vector graphic solutions.
This guide walks you through Apple’s Live Activity feature introduced at WWDC22, covering the required ActivityKit framework, project configuration for Objective‑C/Swift mixed or pure Swift apps, data modeling, creation, updating, ending, push‑token handling, server‑side push payloads, permission checks, and common pitfalls such as network‑image restrictions.
