Unity 的 Package Manager

A package is a container that stores various types of features or assets, such as:

• Editor 工具和库，例如文本编辑器、动画查看器或测试框架。
• 运行时工具和库，例如物理 API 或图形管线。
• 资源集合，如纹理或动画。
• 项目模板，用于与其他人共享常见的项目类型。

包通过 Package Manager 为 Unity 提供了广泛的增强功能。在 Editor 中，可以通过以下菜单来访问 Package Manager 窗口：Window > Package Manager。

Note: The Package Manager also supports viewing any Asset Store packages you have already downloaded or imported from the Unity Asset Store. For more information, see Asset packages.

Unity 如何使用包

When Unity opens a Project, the Unity Package Manager reads the Project manifest (1) to figure out what packages to load in the Project. Then it sends a request (2) to the package registry server (3) for each package that appears as a dependency in the manifest. The package registry then sends the requested information and data back to the Package Manager (4), which then installs those packages (5) in the Project. Each Project has its own manifest which lists the packages to load as “dependencies” of the Project.

Unity Package Manager 安装包的方式

如果要在项目中包含某个包，则必须更新项目清单以将该包包含在依赖项列表中。如果需要，可以直接修改项目清单，但是让 Package Manager 执行此操作会更安全、更轻松。有关使用用户界面的更多信息，请参阅 Package Manager 窗口的文档。

如何使用 Package Manager

Package Manager 使用三个界面与用户、清单和注册表进行通信：

• 在 Unity 2018.1 中添加了 Unity Package Manager