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无法扩展MapActivity

[英]Couldn't extend MapActivity

I am trying to extend MapActivity in my application. 我正在尝试在我的应用程序中扩展MapActivity。 But each time I am getting an error. 但是每次我得到一个错误。 It says that to create a class named MapActivity. 它说要创建一个名为MapActivity的类。 What to do? 该怎么办? Please help. 请帮忙。

You probably haven't done the steps required to set up a Maps project as described in Maps External API Overview. 您可能尚未按照Maps外部API概述中的说明完成设置Maps项目所需的步骤。 Read the following document, and you should be all set. 阅读以下文档,您应该已经准备就绪。

https://developers.google.com/maps/documentation/android/ https://developers.google.com/maps/documentation/android/

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