2025 年 4 月 1 日,我们移除了 Library API 中的部分镜重。
点击此处了解详情。
管理媒体内容
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
除了在上传媒体内容后访问和检索这些内容之外,您还可以更改其说明。
必需的授权范围
更改应用创建内容的说明需要 photoslibrary.edit.appcreateddata
范围。如需详细了解范围,请参阅授权范围。
如需更改媒体内容的说明,请使用媒体内容的标识符发出 media items update
call
,并在请求中添加新的说明。
如需更改媒体项的说明,您的应用必须已上传媒体项,并且当前经过身份验证的用户必须是所有者。说明不得超过 1,000 个字符。
REST
以下是用于更新媒体内容描述的 PATCH 请求标头:
PATCH https://photoslibrary.googleapis.com/v1/mediaItems/media-item-id?updateMask=description
此请求通过添加字段掩码(由网址中的 updateMask
参数表示)来确定要更新的媒体资源。
在请求正文中添加新说明:
{
"description": "new-media-item-description"
}
如果成功,响应将返回更新后的媒体内容:
{
"id": "media-item-id",
"description": "new-media-item-description",
"productUrl": "media-item-product-url",
"baseUrl": "media-items-in-album",
"mimeType": "mime-type-of-media",
"mediaMetadata": {
...
},
"contributorInfo": {
...
},
"fileName": "item-filename"
}
如未另行说明,那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可,并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情,请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-08-29。
[null,null,["最后更新时间 (UTC):2025-08-29。"],[[["\u003cp\u003eAfter uploading media items to Google Photos, you can change their descriptions using the Google Photos API.\u003c/p\u003e\n"],["\u003cp\u003eModifying descriptions of app-created content requires the \u003ccode\u003ephotoslibrary.edit.appcreateddata\u003c/code\u003e scope and ownership by the authenticated user.\u003c/p\u003e\n"],["\u003cp\u003eTo update a description, use the \u003ccode\u003emediaItems/patch\u003c/code\u003e endpoint with the item's ID and a request body containing the new description.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eupdateMask\u003c/code\u003e parameter in the request URL specifies that only the description is being modified.\u003c/p\u003e\n"],["\u003cp\u003eThe response to a successful update request will return the complete updated media item object.\u003c/p\u003e\n"]]],["To modify a media item's description, use a `media items update call` with a PATCH request, specifying the item's ID and the `updateMask` parameter. Include the new description in the request body, ensuring it's under 1,000 characters. This requires the `photoslibrary.edit.appcreateddata` scope, with the app having uploaded the media, and the authenticated user must be the owner. A successful request returns the updated media item details, including the new description.\n"],null,["# Manage media items\n\nIn addition to [accessing and\nretrieving](/photos/library/guides/access-media-items) media items after you\n[upload](/photos/library/guides/upload-media) them, you can also change their\ndescriptions.\n\nRequired authorization scope\n----------------------------\n\nChanging descriptions of app-created content requires the\n`photoslibrary.edit.appcreateddata` scope. For more information on scopes, see\n[Authorization scopes](/photos/overview/authorization).\n\nChanging media item descriptions\n--------------------------------\n\nTo change a media item's description, make a [`media items update\ncall`](/photos/library/reference/rest/v1/mediaItems/patch) with the identifier\nof the media item, and include the new description in the request.\n\nTo change a media item's description, your app must have uploaded the media\nitem, and the currently authenticated user must be the owner. Descriptions can\nbe no more than 1,000 characters in length. \n\n### REST\n\nHere's a PATCH request header to update a media item description: \n\n```\nPATCH https://photoslibrary.googleapis.com/v1/mediaItems/media-item-id?updateMask=description\n```\n\nThis request determines what properties are being updated by including a\nfield mask, indicated by the `updateMask` parameter in the URL.\n\nInclude the new description in the body of the request: \n\n```restructuredtext\n{\n \"description\": \"new-media-item-description\"\n}\n```\n\nIf successful, the response returns the updated media item: \n\n```restructuredtext\n{\n \"id\": \"media-item-id\",\n \"description\": \"\u003cvar translate=\"no\"\u003enew-media-item-description\u003c/var\u003e\",\n \"productUrl\": \"media-item-product-url\",\n \"baseUrl\": \"media-items-in-album\",\n \"mimeType\": \"mime-type-of-media\",\n \"mediaMetadata\": {\n ...\n },\n \"contributorInfo\": {\n ...\n },\n \"fileName\": \"\u003cvar translate=\"no\"\u003eitem-filename\u003c/var\u003e\"\n}\n```"]]