ArkUIX Module Adapter Skill

Overview

Guide OHOS modules through cross-platform adaptation with automated analysis and code generation. This skill transforms Claude into a specialized adaptation assistant with domain expertise in OHOS/ArkUI-X architecture.

Quick Start

User: "I need to adapt @ohos.data.preferences module"

The skill automatically guides through all 6 phases of adaptation.

6-Phase Workflow

Phase 1: Information Collection

Collects minimal information upfront (module name), then lazily collects additional details (repository name, storage path) only when needed.

Output: Module identification information

Phase 2: Code Existence Check & Sync

Intelligently checks if OHOS code already exists before syncing. Avoids redundant operations.

Decision Tree:

1. Check .repo/manifests/openharmony-master.xml
2. Check plugins/ directory
3. Only sync if both checks fail (with repository verification on GitCode)

Output: Sync status or repository verification results

Phase 3: API Interface Analysis

Analyzes .d.ts file to determine @crossplatform coverage.

Metrics:

• Total interface count (by category)
• Adapted vs needs adaptation counts
• Coverage percentage
• Detailed list of interfaces needing adaptation

Output: Comprehensive API statistics with coverage progress bar

Automation: scripts/dts_analyzer.py interface/sdk-js/api/@ohos.{module}.d.ts

Phase 4: Architecture Analysis

Analyzes OHOS module code composition and platform dependencies.

Analysis Dimensions:

• Code volume statistics (NAPI, business logic, platform-specific)
• Platform dependency ratio
• Internal and external dependencies
• Platform implementation necessity (C/C++ native vs platform-specific code)
• Architecture diagrams (module structure, dependencies, call flow)

Key Rule: C/C++ Cross-Platform Native Support

• Analyzes whether module actually requires Android/iOS platform code
• Many data modules (preferences, RDB, crypto) are pure C/C++ and require zero platform-specific implementation
• Only path/configuration differences needed (~50 lines per platform)

Output: Detailed code composition and dependency analysis

Automation: scripts/architecture_analyzer.py foundation/{module_path}

Phase 5: Architecture Recommendation

Recommends adaptation mode based on analysis: OHOS Reuse / Independent / Hybrid

Decision Matrix:

Mode	Code Reuse	New Code	Time	Best For
OHOS Reuse	90-95%	500-800 lines	4-6 weeks	Data-focused (preferences, kv_store)
Hybrid	60-80%	1,500-2,500 lines	6-10 weeks	Mixed (location, sensor)
Independent	10-30%	4,000-6,000 lines	10-16 weeks	Platform-heavy (BLE, pasteboard)

Output: Recommended mode with rationale and effort estimates

Phase 6: Implementation Guidance

Provides actual implementation code with complete examples for:

• Pure virtual interface (OHOS repo)
• OHOS thin wrapper (100% forwarding)
• Android JNI adapter (complete with error handling)
• iOS Objective-C++ adapter (complete with @try-@catch)
• Build configuration (GN templates)
• Unit tests

Output: Production-ready code with comprehensive error handling

Automation: scripts/code_generator.py {module} {repo} --api-version {ver}

Key Features

🤖 Automated Scripts

All scripts are in scripts/ directory:

# Analyze .d.ts coverage
python3 scripts/dts_analyzer.py interface/sdk-js/api/@ohos.data.preferences.d.ts

# Analyze module architecture
python3 scripts/architecture_analyzer.py foundation/distributeddatamgr/preferences

# Generate configuration files (dry-run)
python3 scripts/code_generator.py data/preferences distributeddatamgr_preferences --api-version 23 --dry-run

# Apply changes
python3 scripts/code_generator.py data/preferences distributeddatamgr_preferences --api-version 23

📚 Progressive Disclosure

Core workflow in SKILL.md (this file), detailed content in references:

• Phase Details: references/phase{1-6}*.md
• Architecture Modes: references/architecture-modes.md
• Code Examples: references/code-examples.md
• Templates: assets/templates/ (code templates for reuse)

🎯 Three Architecture Modes

OHOS Reuse Mode (90-95% reuse)

For data-focused modules with minimal platform dependencies.

Characteristics:

• Platform-independent business logic >90%
• Thin platform adapters (JNI/ObjC++)
• Zero OHOS runtime overhead
• C/C++ Native modules may require zero platform code (up to 100% reuse)

Example Modules: preferences, kv_store, http

Independent Implementation Mode (10-30% reuse)

For modules with heavy platform API dependencies.

Characteristics:

• Platform-specific code >70%
• Native framework integration
• Each platform has own implementation

Example Modules: bluetooth, pasteboard, camera

Hybrid Mode (60-80% reuse)

For mixed data/platform logic modules.

Characteristics:

• Extract common data structures
• Service abstraction layer
• Shared business logic

Example Modules: geolocation, sensor, request

Implementation Checklist

Use this checklist to track adaptation progress:

Phase 1: Information Collection

• Module name collected
• Repository name verified (if needed)

Phase 2: Code Sync

• Repository verified on GitCode
• Code synced (if needed)
• Plugin structure created (if needed)

Phase 3: API Analysis

• .d.ts file analyzed
• Coverage percentage calculated
• Interfaces needing adaptation listed

Phase 4: Architecture Analysis

• Code volume statistics collected
• Platform dependency ratio calculated
• Dependencies identified
• Platform implementation necessity analyzed (C/C++ native vs platform-specific)

Phase 5: Architecture Recommendation

• Architecture mode selected
• Developer confirms choice

Phase 6: Implementation

• Pure virtual interface defined (OHOS repo)
• OHOS thin wrapper implemented (OHOS repo)
• Android adapter implemented (Plugin repo)
• iOS adapter implemented (Plugin repo)
• Build configuration updated
• Configuration files generated (4 files)
• Unit tests written
• Compilation successful (all platforms)
• Tests passing

Mandatory Configuration Files

After code generation, ensure all 4 files are updated:

• plugins/plugin_lib.gni - Module entry
• interface/sdk/plugins/api/apiConfig.json - Library configuration
• build_plugins/sdk/arkui_cross_sdk_description_std.json - Build entries
• interface/sdk-js/api/@ohos.{module}.d.ts - @crossplatform annotations

Troubleshooting

Repository not found on GitCode?

• Browse https://gitcode.com/org/openharmony/repos manually
• Try naming pattern: {subsystem}_{module} or {module}

Validation failed?

• Check all 4 mandatory files exist
• Verify module name format (use forward slashes)
• Ensure .d.ts file path is correct

Build errors?

• Check GN configuration syntax
• Verify dependency declarations
• Check for missing includes

Related Skills

• arkuix-api-adapter - For adapting individual API methods within a module

Tips

1. Start Small: Try with a simple module first (e.g., preferences)
2. Use Dry-Run: Always use --dry-run flag before applying changes
3. Verify Repository: Always verify repository exists before syncing
4. Read References: Consult detailed references for complex phases
5. Run Tests: Always run tests after implementation