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  "contentMarkdown": "# Unity editor模式不运行游戏的情况下，内存加载的图片导致游戏图集加载错误\n\n> [!note] 我的 UWA 问答\n> 本文收录我在 UWA 问答发表的公开回答。问题内容归原提问者；回答保留当时语境，技术结论可能受 Unity 版本、平台和项目条件限制。\n\n## 问题\n\nUnity editor模式下编辑prefab，图片会加载到内存中。导致一开始运行游戏的时候会触发相关图集SpriteAtlasManager.atlasRequested的提前调用，导致图集加载错误。\n\n![image.png](assets/6074fe116bb31032f97912ec/01.png)\n\n上图是，过早的图集加载，失败时检测到内存中加载的图片。\n\n有没有办法在运行游戏的时候清除编辑预制体时内存中的图片图集？或者类似的办法？\n\n补充：在不运行游戏的情况下调用内存查看的接口，发现内存中仍然有很多图片被加载了\n\n![image.png](assets/6074fe116bb31032f97912ec/02.png)\n\n- 提问者：潜行医生-577493\n- 提问时间：2021-04-13 18:12:33\n\n## 我的回答\n\n这个问题本质上是，当引用到Atlas的Sprite加载时，如果内存中没有Atlas，就会触发加载图集的”请求“（atlasRequested）。Editor下编辑prefab，会生成这个请求，在游戏运行的第一帧，这个请求函数会被调用。而这个请求是由Native层发出的（[RequiredByNativeCode]），所以我们没有办法控制，跟卸载内存中的资源是没有关系的。\n\n![image.png](assets/6074fe116bb31032f97912ec/03.png)\n\n而这个请求也只会在运行时的第一帧进行调用，所以，不要在第一帧注册atlasRequested事件，在第一帧之后，或者在需要加载相应Prefab时注册该函数，就可以避免在启动游戏时调用该函数。\n\n![image.png](assets/6074fe116bb31032f97912ec/04.png)\n\n- 回答时间：2021-04-14 07:05:16\n- 最后更新：2021-04-14 07:05:16\n- 采纳状态：已采纳\n\n## 来源与关系\n\n- 上位集合：[[10-计算机、信息技术与工程/05-游戏图形与运行时/我的UWA问答/我的UWA问答|我的 UWA 问答]]\n- UWA 标签：项目管理、资源管理、内存管理\n- 原始问题：[Unity editor模式不运行游戏的情况下，内存加载的图片导致游戏图集加载错误](https://answer.uwa4d.com/question/6074fe116bb31032f97912ec)\n- 源页最后更新：2021-04-14 07:05:16\n"
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