Detailed Guide to Developing Flutter Plugins for HarmonyOS
## 0. Environment Setup
*Prerequisite*: Configure HarmonyOS Flutter environment *Reference*: [HarmonyOS Flutter Environment Setup Guide](https://juejin.cn/post/7317214081261207603) *Note*: Downloading and compiling the engine is time-consuming. Pre-built engines are available upon request.
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## 1. Obtain Original Plugin Code
``` git clone <original_plugin_repository> ```
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## 2. Generate OHOS Directory
``` # Option 1: Direct generation (may fail) flutter create -t plugin --platforms ohos
# Option 2: Create demo project and copy flutter create -t plugin --platforms ohos demo cp -r demo/ohos ./ ```
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## 3. Configure Local Dependency
Add local dependency in `pubspec.yaml`:
``` dependencies: your_plugin: path: ../path_to_plugin ```
## 4. Build Plugin Package
```bash flutter build hap \ --local-engine-src-path /path/to/ohos_flutter/src \ --local-engine ohos_release_arm64 ```
*Successful Output*:
```markdown √ Built build/hap/release/entry-release.hap (XX.XMB) ```
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## 5. Verify Generated Files
After successful build:
## 6. Locate Plugin HAR Package
Plugin output directory:
```markdown your_plugin/ohos/build/outputs/ └── har └── your_plugin_ohos.har # Plugin package ```
## 7. Add HAR to Demo Project
Copy HAR to demo project:
bash
```bash cp your_plugin_ohos.har demo_portal/module/ohos/libs/ ```
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## 8. Configure HAR Dependency
## 9. Initialize Plugin
## 10. Test Plugin Functionality
## 11. Develop Native Implementation
Follow these steps for native development:
1. Analyze existing iOS/Android native logic 2. Create HarmonyOS equivalent in `ohos/src/main/cpp/` 3. Implement platform interface:cpp