FilePicker

/applications/standard/filepicker
├── figures                     # 架构图目录
├── product                     # 产品层模块目录
│   └── pad                     # pad模式模块目录
|       └── src
|           ├── main
|               ├── ets
│                   ├── MainAbility              # MainAbility代码目录
|                       ├── module               # 公共文件目录
|                       ├── pages                # 业务特性的View层目录
|                       ├── workers              # worker对于的js文件目录
│                   └── AbilityStage.ts
|               ├── resources   # 资源目录
|               └── config.json # 项目配置信息
│   └── phone                   # phone模式模块目录
|       └── src
|           ├── main
|               ├── ets
│                   ├── MainAbility              # MainAbility代码目录
|                       ├── module               # 公共文件目录
|                       ├── pages                # 业务特性的View层目录
|                       ├── workers              # worker对于的js文件目录
│                   └── AbilityStage.ts
|               ├── resources   # 资源目录
|               └── config.json # 项目配置信息
├── signature                   # 证书文件目录
├── LICENSE                     # 许可文件

// 拉起FilePicker选择文件
globalThis.context.startAbilityForResult(
    {
        bundleName: "com.ohos.filepicker",
        abilityName: "MainAbility",
        parameters: {
            'startMode': 'choose', //choose or save    
        }
    },
    { windowMode: 102 }
)
    
// 拉起FilePicker保存文件
globalThis.context.startAbilityForResult(
	{
        bundleName: "com.ohos.filepicker",
        abilityName: "MainAbility",
        parameters: {
        'startMode': 'save', //choose or save
        'saveFile': 'test.jpg',
        }
    },
    { windowMode: 102 }
)

// file picker返回给startAbilityForResult的数据
var abilityResult = {
    resultCode: resultCode,
    want: {
        parameters: {
            'startMode': startMode,
            'result': result
        }
    }
}
globalThis.context.terminateSelfWithResult(abilityResult)