华为鸿蒙认证学习

1. 开发这平台

developer.huawei.com/consumer/cn…

2. 《鸿蒙工程师认证》速拿秘籍

www.bilibili.com/read/cv3035…

3. HarmonyOS应用开发者高级认证

developer.huawei.com/consumer/cn…

4. arkTs开发文档

developer.huawei.com/consumer/cn…

5. 知识点

• openHarmonyOS包含HarmonyOS

• stage模型是什么意思？？？

• 框架中对应的几个配置文件

• AppScope/app.json5 描述app整体信息

{
  "app": {
    "bundleName": "com.example.card",
    "vendor": "example", // 公司名称
    "versionCode": 1000000, // 版本code
    "versionName": "1.0.0", // 版本号
    "icon": "$media:app_icon", // APPicon
    "label": "$string:app_name" // app名字
  }
}

• src/main/module.json5 描述模块基本信息

```
{
  "module": {
    "name": "entry",
    "type": "entry",
    "description": "$string:module_desc",
    "mainElement": "EntryAbility",
    "deviceTypes": [
      "phone",
      "tablet"
    ],
    "deliveryWithInstall": true,
    "installationFree": false,
    "pages": "$profile:main_pages",
    "abilities": [ // 模块页面详细信息
      {
        "name": "EntryAbility",
        "srcEntry": "./ets/entryability/EntryAbility.ts",
        "description": "$string:ability_desc",
        "icon": "$media:icon",
        "label": "$string:ability_label",
        "startWindowIcon": "$media:icon",
        "startWindowBackground": "$color:start_window_background",
        "launchType": "singleton",
        "exported": true,
        "skills": [
          {
            "entities": [
              "entity.system.home"
            ],
            "actions": [
              "action.system.home"
            ]
          }
        ]
      }
    ]
  }
}
```

• src/main/resources/base/profile/main_pages.json 描述页面pages信息，就是说有多少个页面

{ // 所有页面都存在
  "src": [
    "pages/BusinessCardPage",
    "pages/DetailPage",
    "pages/login"
  ]
}

• Ability和libary

Ability是UI的组件，libary是包类型

• 父子组件通信
• @Prop 单项通信
• @Link 双向通信
• 生命周期

@compoetent所有组件都包含的生命周期

- aboutToAppear 
- aboutToDisappear 

@enter入口组件包含的生命周期

- onPageShow
- onBackPress
- onPageHide

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