windows平台OpenHarmony Flutter插件开发介绍

OpenHarmony蒙已经支持flutter，本文介绍在windows上开发OpenHarmony flutter插件的基础步骤

环境搭建

• 下载deveco套件(https://developer.huawei.com/consumer/cn/deveco-studio/)安装
• 下载https://gitee.com/openharmony-sig/flutter_flutter
• 设置windows环境变量，如下图

DEVECO_SDK_HOME C:\Program Files\Huawei\DevEcoFlutter\sdk

FLUTTER_GIT_URL https://gitee.com/openharmony-sig/flutter_flutter

FLUTTER_STORAGE_BASE_URL https://storage.flutter-io.cn

HOS_SDK_HOME C:\Program Files\Huawei\DevEcoFlutter\sdk

PUB_HOSTED_URL https://pub.flutter-io.cn

上述DevEcoFlutter为deveco ide的安装路径

• 设置PATH环境变量

\flutter\flutter_flutter\bin === 上述步骤https://gitee.com/openharmony-sig/flutter_flutter 的下载路径

C:\Program Files\Common Files\Oracle\Java\javapath

%JAVA_HOME%\bin

C:\Program Files\Huawei\DevEcoFlutter\sdk

C:\Program Files\Huawei\DevEcoFlutter\tools\node

C:\Program Files\Huawei\DevEcoFlutter\tools\hvigor\bin

C:\Program Files\Huawei\DevEcoFlutter\tools\ohpm\bin

C:\Users\shiti\AppData\Local\Android\Sdk\platform-tools

插件开发

创建工程

如果是已有插件的鸿蒙化，可以在在插件根目录文件夹下运行如下命令

flutter create --platforms ohos . 新开发插件则直接创建工程

# 创建工程
 flutter create --platforms ohos <projectName>

修改yaml文件

一般只需要修改工程根目录下yaml文件，增加ohos平台；以flutter_filereader为例，增加内容如下图

example目录下的yaml文件一般不需要修改，如果工程运行错误，可以检查该文件中的依赖是否指定本地路径

flutter_filereader: path: ../

构建调试

flutter run --debug //release版本就用release

该命令编译构建结束后自动在手机上安装app并运行

APP产生的调试信息可以通过deveco ide中的hilog查看

重点坑

工程路径浅一点（建议放到根目录），不然可能出现莫名错误，比如找不到文件等

参考资料

https://gitee.com/openharmony-sig/flutter_flutter

https://gitee.com/openharmony-sig/flutter_samples/blob/master/ohos/docs/03_environment/%E9%B8%BF%E8%92%99%E7%89%88Flutter%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA%E6%8C%87%E5%AF%BC.md

https://gitee.com/openharmony-sig/flutter_plus_plugins/blob/master/GUIDE_DOCUMENT.md