鸿蒙开发

1、组件渲染问题Foreach

    //最好写上keyGenerator，index导致只显示一个
    ForEach(rollingList, (item: Item) => {
            Column() {
              Text(item).fontSize(12).fontColor(Color.Black)
            }
            .alignItems(HorizontalAlign.Start)
          }, //默认(item,index)=>index+JSON.stringify(item)
            //(item:Item)=>item.id 当其他属性发生改变 列表不会变化
            //哪个属性变化keyGenerator必须有变化才能成功
            ({id,likeNum,isLike}) => JSON.stringify({ id, likeNum, isLike })
)

2、模块（资源）引用，静态可以引用资源resource

如base模块为 src/main/module.json5 type

{
  "module": {
    "name": "base",
    "type": "shared",// 动态为[shared] 静态为[har]
    "description": "$string:shared_desc",
    "deviceTypes": [
      "phone",
      "tablet"
    ],
    "deliveryWithInstall": true,
    "pages": "$profile:main_pages"
  }
}

修改base/hvigorfile.ts system

// 动态
import { hspTasks } from '@ohos/hvigor-ohos-plugin';
 
export default {
system: hspTasks , /* Built-in plugin of Hvigor. It cannot be modified. */
plugins:[] /* Custom plugin to extend the functionality of Hvigor. */
}
 
// 静态需修改为：
import { harTasks } from '@ohos/hvigor-ohos-plugin';
 
export default {
system: harTasks , /* Built-in plugin of Hvigor. It cannot be modified. */
plugins:[] /* Custom plugin to extend the functionality of Hvigor. */

引用 oh-package.json5

 "dependencies": {
    //静态库
    "@ohos/shareLibrary":"file:../base"
  //动态库
   "base":"file:../base"
  }

3、sharedlibrary模块内使用路由跳转不能直接用'pages/XXPage'

'@bundle:包名（bundleName）/模块名（moduleName）/路径/页面所在的文件名(不加.ets后缀)'

router.pushUrl({
                        url: "@bundle:com.xxx.xxx/xyz/ets/pages/XXPage"
                      }, router.RouterMode.Single).then(()=>{})
                      .catch((err)=>{
                        console.error(`PUSH_URL 错误信息 ${err.code}, message is ${err.message}`)
                      })