为了完成这点，您需要再一次返回到插件声明，并添加一个新的扩展。

To accomplish this, you need to once again return to the plug-in manifest and add a new extension.

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添加一个动作并包含清单2中的代码来完成这个步骤。

Add an activity and include the code detailed in Listing 2 to accomplish this.

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否则，您将需要发出各种命令来注册主x ML模式，添加其他必要的模式，并完成注册过程。

Otherwise, you need to issue individual commands to register your primary XML schema, add the other required schemas, and complete the registration process.

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