The HarmonyOS Developer Community is a learning-oriented community for developers to learn, communicate, ask questions, and share.
This article analyzes the RcSwitch component's dual-file architecture, ComponentV2 decorator system, controlled two-way binding, union type design for flexible values, and two-level state synchronization with lifecycle hooks in HarmonyOS 6.
Triggered by the APIfox supply-chain attack, this article details HarmonyOS 6's three-layer request interception (onLoadIntercept, onInterceptRequest, WebSchemeHandler) with code examples for whitelist enforcement, resource substitution, audit logging, and AI-specific filters against prompt injection and data leakage.
This article details two approaches for creating dynamic gradient backgrounds in HarmonyOS apps: a simple property animation for color transitions and a high-performance keyframe animation that moves an oversized gradient layer to achieve complex flowing and rotating effects, with complete code examples and a comparison table.
This tutorial walks through building a HarmonyOS NEXT app that uses ArkTS and the reminderAgentManager API to deliver daily 7:30 AM weather-based umbrella notifications, covering permissions, network requests, decision logic, and UI design.
This HarmonyOS tutorial walks through building a sound-responsive wave ripple animation by capturing microphone amplitude via AudioCapturer, mapping the 0–1 level to a 80–300 pixel radius using a log10 sensitivity curve, animating three staggered circles with opacity fade, and throttling updates to prevent jank.
This guide details the RcText component from the rchoui library for HarmonyOS 6, covering basic text display, theme colors, sizing, custom styling, alignment, decoration, truncation modes, special formats for price and phone numbers, link handling, prefix/suffix icons, interaction events, and layout control with practical code examples.
This article explains how to implement edge-cloud collaboration using HarmonyOS ArkTS for lightweight client-side development and Huawei Cloud FunctionGraph serverless functions for professional cloud-side processing, covering core concepts, advantages, functions, scenarios, a comparison with traditional ECS/containers, quick-start steps, and complete code examples for both ArkTS HTTP requests and FunctionGraph functions.
Through an AI ID photo tool case study, this article demonstrates HarmonyOS concurrency patterns: TaskPool for short preprocessing, Worker for long AI inference, TaskGroup for parallel batch generation, SequenceRunner for dependent tasks, SharedArrayBuffer for zero-copy sharing, Sendable for thread-safe singletons, and producer-consumer queues for real-time previews, with before/after performance metrics.
This tutorial demonstrates how to implement face detection in HarmonyOS apps using Core Vision Kit, covering face position, landmarks, orientation, confidence scores, with complete ArkTS code examples, constraints, error handling, and privacy considerations for offline on-device processing.
This article analyzes HarmonyOS security architecture, detailing its Level II national certification, the six-layer StarShield defense model covering hardware TEE, microkernel isolation, dynamic permissions, distributed security, and a government migration case study with measurable security improvements.
