鸿蒙应用开发初尝试《创建项目》，之前那篇hello world作废

经过几年的迅速发展，鸿蒙抛弃了JAVA写应用的方式，几年前了解的鸿蒙显然就gg了。

这几年鸿蒙发布了方舟（ArkUI Arkts），将TypeScript作为了推荐开发语言，你依然可以用FA+JS,但华为推荐用Stage+ArkTs!!!那么你还是用Stage+ArkTs开发吧！！

采用Mac

第一步下载IDEA

HUAWEI DevEco Studio和SDK下载和升级 | HarmonyOS开发者

安装配置

省略安装后启动.....

当你要创建第一个项目的时候会弹出下面这个，我这里已经把node ohpm全部安装好了就全是√。

如果没安装画红框的地方会出现蓝色字，点击安装或选择安装位置就可以

创建项目

点击Finish项目就创建成功了！！

项目目录展示说明

按照Ohos来说，华为把项目化分了包。实际位置可能不在同级目录。

ets/entryability项目目录是华为“约定”存放ablility window的地方

ets/pages 项目目录是华为“约定”存放页面内容（组件）的地方

当然你不一定放要放，可以自己新建包名，ability在配置文件module.json5链接好就行 page在显示的时候对应上包名就可以。

entry/configuration 存放就是配置信息

项目文件说明

AppScope/app.json5文件很显然包括了app的包名，版本，应用名（lable）等信息

{"app": {"bundleName": "com.lyl.hello","vendor": "lyl","versionCode": 1000000,"versionName": "1.0.0","icon": "$media:app_icon","label": "$string:app_name"}
}

entry/configuration/build-profile.json5 api类型等信息

{"apiType": 'stageMode',"buildOption": {},"targets": [{"name": "default","runtimeOS": "HarmonyOS"},{"name": "ohosTest",}]
}

entry/configuration/hvigorfile.ts 构建器脚本暂时不能修改就不列了

entry/configuration/module.json5 类manifest文件写法不同内容不一样

{"module": {"name": "entry","type": "entry","description": "$string:module_desc","mainElement": "EntryAbility","deviceTypes": ["phone","tablet"],"deliveryWithInstall": true,"installationFree": false,"pages": "$profile:main_pages","abilities": [{"name": "EntryAbility","srcEntry": "./ets/entryability/EntryAbility.ts","description": "$string:EntryAbility_desc","icon": "$media:icon","label": "$string:EntryAbility_label","startWindowIcon": "$media:icon","startWindowBackground": "$color:start_window_background","exported": true,"skills": [{"entities": ["entity.system.home"],"actions": ["action.system.home"]}]}]}
}

entry/configuration/oh-package.json5 相当于安卓项目模块（app）下面build.gradle文件

{"name": "entry","version": "1.0.0","description": "Please describe the basic information.","main": "","author": "","license": "","dependencies": {}
}

configuration/build-profile.json5 模块信息，编译api版本等

{"app": {"signingConfigs": [],"compileSdkVersion": 9,"compatibleSdkVersion": 9,"products": [{"name": "default","signingConfig": "default",}]},"modules": [{"name": "entry","srcPath": "./entry","targets": [{"name": "default","applyToProducts": ["default"]}]}]
}

configuration/oh-package.json5相当于安卓项目中project层的build.gradle

{"name": "hello","version": "1.0.0","description": "Please describe the basic information.","main": "","author": "","license": "","dependencies": {},"devDependencies": {"@ohos/hypium": "1.0.6"}
}

configuration/oh-package.json5自动生成的不用直接改

page/index 一种响应式编程组件写法。“状态变更，重新渲染”

@Entry
@Component
struct Index {@State message: string = 'Hello World'build() {Row() {Column() {Text(this.message).fontSize(50).fontWeight(FontWeight.Bold)}.width('100%')}.height('100%')}
}