> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 获取社交关系

> 使用 XblSocialGetSocialRelationshipsAsync 检索 XBOX Live 用户好友及其公共关系属性的示例 XSAPI 扁平 C 代码。

<Note>本主题演示了高级 API 用法。如果您在 Social Manager 中发现不支持的场景，请告知您的开发者客户经理 (DAM)。</Note>

本主题提供了一个代码示例，展示了如何使用 Social Manager API 检索用户的社交关系及其公共属性。

若要开始使用 Social Manager，请参阅 [Social Manager 概述](/services/xbox-services/community/social-manager/live-social-manager-overview)。
Social Manager API 显著简化了跟踪在线好友及其游戏活动的开发。

## 获取第一个用户的社交关系

以下代码示例展示了如何使用 XBOX 服务检索社交关系。

代码示例执行以下操作：

1. 生成系统上所有用户的列表，然后检索第一个用户。
2. 检索该用户的所有社交关系。
3. 显示每个关系的公共属性。

**扁平 C API**

```cpp theme={null}
auto asyncBlock = std::make_unique<XAsyncBlock>(); 
asyncBlock->queue = queue;
asyncBlock->context = nullptr;
asyncBlock->callback = [](XAsyncBlock* asyncBlock)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ asyncBlock }; // Take over ownership of XAsyncBlock*.
    HRESULT hr = XblSocialGetSocialRelationshipsResult(asyncBlock, &state.socialResultHandle);

    // Be sure to call XblSocialRelationshipResultCloseHandle when the result object is no longer needed.
};

HRESULT hr = XblSocialGetSocialRelationshipsAsync(
    xboxLiveContext,
    xboxUserId,
    socialRelationshipFilter,
    0,
    0,
    asyncBlock.get()
);

if (SUCCEEDED(hr))
{
    // The call succeeded, so release the std::unique_ptr ownership of XAsyncBlock* because the callback will take over ownership.
    // If the call fails, std::unique_ptr will keep ownership and delete XAsyncBlock*.
    asyncBlock.release();
}
```

有关详细信息，请参阅以下内容：

* [XAsyncBlock](/reference/system/xasync/structs/xasyncblock)
* [XblSocialGetSocialRelationshipsAsync](/reference/live/xsapi-c/social_c/functions/xblsocialgetsocialrelationshipsasync)
* [XblSocialGetSocialRelationshipsResult](/reference/live/xsapi-c/social_c/functions/xblsocialgetsocialrelationshipsresult)
* [XblSocialRelationshipResultCloseHandle](/reference/live/xsapi-c/social_c/functions/xblsocialrelationshipresultclosehandle)

## 获取单个关系

**扁平 C API**

```cpp theme={null}
const XblSocialRelationship* relationships = nullptr;
size_t relationshipsCount = 0;
HRESULT hr = XblSocialRelationshipResultGetRelationships(state.socialResultHandle, &relationships, &relationshipsCount);

LogToFile("Got %u SocialRelationships:", relationshipsCount);
for (size_t i = 0; i < relationshipsCount; ++i)
{
    LogToFile("Xuid = %u, isFollowingCaller = %u", relationships[i].xboxUserId, relationships[i].isFollowingCaller);
}
```

有关详细信息，请参阅以下内容：

* [XblSocialRelationship](/reference/live/xsapi-c/social_c/structs/xblsocialrelationship)
* [XblSocialRelationshipResultGetRelationships](/reference/live/xsapi-c/social_c/functions/xblsocialrelationshipresultgetrelationships)

## 获取下一页关系

**扁平 C API**

```cpp theme={null}
bool hasNext{ false };
HRESULT hr = XblSocialRelationshipResultHasNext(state.socialResultHandle, &hasNext);

if (hasNext)
{
    auto asyncBlock = std::make_unique<XAsyncBlock>(); 
    asyncBlock->queue = queue;
    asyncBlock->context = nullptr;
    asyncBlock->callback = [](XAsyncBlock* asyncBlock)
    {
        std::unique_ptr<XAsyncBlock> asyncBlockPtr{ asyncBlock }; // Take over ownership of XAsyncBlock*.
        // Close the handle to the previous page of results.
        if (state.socialResultHandle)
        {
            XblSocialRelationshipResultCloseHandle(state.socialResultHandle);
        }
        HRESULT hr = XblSocialRelationshipResultGetNextResult(asyncBlock, &state.socialResultHandle);
    };

    uint32_t maxItems = 100;
    HRESULT hr = XblSocialRelationshipResultGetNextAsync(xboxLiveContext, state.socialResultHandle, maxItems, asyncBlock.get());
    if (SUCCEEDED(hr))
    {
        // The call succeeded, so release the std::unique_ptr ownership of XAsyncBlock* because the callback will take over ownership.
        // If the call fails, std::unique_ptr will keep ownership and delete XAsyncBlock*.
        asyncBlock.release();
    }
}
```

有关详细信息，请参阅以下内容：

* [XAsyncBlock](/reference/system/xasync/structs/xasyncblock)
* [XblSocialRelationshipResultCloseHandle](/reference/live/xsapi-c/social_c/functions/xblsocialrelationshipresultclosehandle)
* [XblSocialRelationshipResultGetNextAsync](/reference/live/xsapi-c/social_c/functions/xblsocialrelationshipresultgetnextasync)
* [XblSocialRelationshipResultGetNextResult](/reference/live/xsapi-c/social_c/functions/xblsocialrelationshipresultgetnextresult)
* [XblSocialRelationshipResultHasNext](/reference/live/xsapi-c/social_c/functions/xblsocialrelationshipresulthasnext)


## Related topics

- [用户系统（好友列表）示例代码](/zh-CN/services/xbox-services/community/people-system/how-to/live-pplsys-howto-nav.md)
- [操作指南](/zh-CN/services/xbox-services/community/people-system/how-to/index.md)
- [处理社交关系更改](/zh-CN/services/xbox-services/community/people-system/how-to/live-handling-a-relationship-change.md)
- [排行榜](/zh-CN/build/steam-porting-guide/features/steam-leaderboards.md)
- [XblSocialRelationshipChangeEventArgs](/zh-CN/reference/live/xsapi-c/social_c/structs/xblsocialrelationshipchangeeventargs.md)