> You are reading documents of OpenHarmony 3.2 Beta5. You can use the [compatible SDK](../release-notes/OpenHarmony-v3.2-beta5.md#version-mapping) for your application development.
## Introduction
OpenHarmony is an open-source project incubated and operated by the OpenAtom Foundation. The purpose of this project is to build an open-source, distributed operating system (OS) framework for smart devices in all scenarios of a fully-connected world.
> You are reading documents of OpenHarmony 3.2 Beta5. You can use the [compatible SDK](../release-notes/OpenHarmony-v3.2-beta5.md#version-mapping) for your application development.
The application development documents provide reference for you to develop applications using the APIs provided by OpenHarmony. They walk you through how to use JavaScript APIs to develop applications on the standard system.
> - The APIs of this module are supported since API version 6. Updates will be marked with a superscript to indicate their earliest API version.
> - This API is deprecated since API version 9 and will be retained until API version 13.
> - Certain functionalities are changed as system APIs and can be used only by system applications. To use these functionalities, call [@ohos.filemanagement.userFileManager](js-apis-userFileManager.md).
> - The functionalities for selecting and storing media assets are still open to common applications. To use these functionalities, call [@ohos.file.picker](js-apis-file-picker.md).
>
> The APIs of this module are supported since API version 6. Updates will be marked with a superscript to indicate their earliest API version.
## Modules to Import
```js
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@@ -610,7 +607,7 @@ Call this API when you no longer need to use the APIs in the **MediaLibrary** in
@@ -2647,12 +2646,15 @@ Implements the media asset option.
| mimeType | string | Yes | Yes | Multipurpose Internet Mail Extensions (MIME) type of the media.<br>The value can be 'image/\*', 'video/\*', 'audio/\*' or 'file\*'.|
| relativePath | string | Yes | Yes | Custom path for storing media assets, for example, 'Pictures/'. If this parameter is unspecified, media assets are stored in the default path.<br> Default path of images: 'Pictures/'<br> Default path of videos: 'Videos/'<br> Default path of audios: 'Audios/'<br> Default path of files: 'Documents/'|
| type | 'image' | 'video' | 'media' | Yes | Yes | Media type, which can be **image**, **media**, or **video**. Currently, only **media** is supported.|
@@ -45,9 +45,9 @@ BLE connection parameters can be configured, and the connection process is optim
| Software/Tool| Version| Remarks|
| -------- | -------- | -------- |
| OpenHarmony | 3.2 Beta5 | NA |
| Public SDK | Ohos_sdk_public 3.2.10.6 (API Version 9 Beta5) | This toolkit is intended for application developers and does not contain system APIs that require system permissions.It is provided as standard in DevEco Studio.|
| (Optional) HUAWEI DevEco Studio| *To be released*| Recommended for developing OpenHarmony applications|
| (Optional) HUAWEI DevEco Device Tool| *To be released*| Recommended for developing OpenHarmony smart devices|
| Public SDK | Ohos_sdk_public 3.2.10.6 (API Version 9 Beta5) | This toolkit is intended for application developers and does not contain system APIs that require system permissions.<br>It is provided as standard in DevEco Studio.|
@@ -137,9 +137,9 @@ This version has the following updates to OpenHarmony 3.2 Beta4.
### SDK Updates
From this version, only the public SDK is released. You can obtain the public SDK from the mirror or download it through DevEco Studio.
From this version on, only the public SDK is released. You can obtain the public SDK from the mirror or download it from DevEco Studio for your application development.
To use the full SDK that contains the system APIs, you must download the full source code, build a SDK file, and switch to the full SDK on DevEco Studio. For details, see [Guide to Building Full SDK](../application-dev/quick-start/full-sdk-compile-guide.md).
To use the full SDK that contains system APIs, you must download the full code, compile and build an SDK file, and switch to the full SDK on DevEco Studio. For details about how to compile the full SDK using the source code, see [Full SDK Compilation Guide](../application-dev/quick-start/full-sdk-compile-guide.md).
### Feature Updates
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@@ -162,11 +162,13 @@ To use the full SDK that contains the system APIs, you must download the full so
| File storage| - Unified URI processing is added for application files.<br>- Temporary authorization and unified open entry are added for user data.<br>The following requirements are involved:<br>I687C8 [New capability] Unified URI processing for application files<br>I64U8W [Basic capability] Temporary authorization and unified open entry for user data| NA |
| Ability framework| - The restart of resident processes is optimized.<br>- The widget database can be switched.<br>- The asynchronous **onConnected** lifecycle is provided.<br>The following requirements are involved:<br>I65M3F [Basic capability] ShellCommand execution control<br>I65V83 [Basic capability] ServiceExtensionAbility support for asynchronous **onConnected** lifecycle<br>I61H21 [Basic capability] Change of the local widget database<br>I63UJ5 [Ability] [ability_runtime] Exception handling in API version 8 and earlier versions<br>I6BDCW [Basic capability] Forbidden to load code in the **data** directory during application loading<br>I6BDDU [Basic capability] Default ability launch mode of the FA model: Standard<br>I6BDE2 [Basic capability] Protection against frequent restart of resident applications| NA |
For details on the API difference list, see [API Differences](api-change/v3.2-beta5/Readme-EN.md).
For details about the API changes, see [API Differences](api-change/v3.2-beta5/Readme-EN.md).
For details about the API changes of each subsystem, see [Changelogs](changelogs/v3.2-beta5/Readme-EN.md).
For details about the API differences of each subsystem, see [Changelogs](changelogs/v3.2-beta5/Readme-EN.md)
### Chip and Development Board Adaptation
For details about the adaptation status, see [SIG-Devboard](https://gitee.com/openharmony/community/blob/master/sig/sig-devboard/sig_devboard.md).
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@@ -177,9 +179,9 @@ For details about the adaptation status, see [SIG-Devboard](https://gitee.com/op
| Multimedia subsystem| [QR code scanning](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-3.2-Beta5/media/Scan)| The sample app is used to scan QR code. With the app, you can select a QR code image from a folder to identify the QR code information.| ArkTS|
| ArkUI | [Home Page of the Application Market](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-3.2-Beta5/MultiDeviceAppDev/AppMarket) | This sample shows a typical home page of the application market. The page has different display effects in the small window and large window, reflecting the capability of one-time development for multi-device deployment.| ArkTS|
| ArkUI | [Home Page of the Application Market](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-3.2-Beta5/MultiDeviceAppDev/AppMarket)| This sample shows the home page of the application market. The page has different display effects in the small window and large window, reflecting the capability of one-time development for multi-device deployment.| ArkTS|
| File management subsystem| [File Management](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-3.2-Beta5/FileManager/FileIo)| This sample demonstrates file management. It uses the [mediaLibrary](https://gitee.com/openharmony/docs/blob/master/zh-cn/application-dev/reference/apis/js-apis-medialibrary.md), [userFileManager](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-userfilemanager.md) and [fileio](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-fileio.md) APIs to add and access media library files and files in the application sandbox.| ArkTS|
| Ability framework| [Gallery Widget](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-3.2-Beta5/ability/GalleryForm) | This sample app is a gallery widget. It demonstrates how a photo in the gallery is displayed in the widget and how the widget content is periodically updated. | ArkTS|
| Ability framework| [Gallery Widget](https://gitee.com/openharmony/applications_app_samples/tree/OpenHarmony-3.2-Beta5/ability/GalleryForm)| This sample demonstrates the display of **Gallery** images in a widget and periodic update of the widget.| ArkTS|
For more information, visit [Samples](https://gitee.com/openharmony/applications_app_samples).
