我写一个Android应用程序，将使用谷歌地图，但要实现这一点，我需要谷歌的API。当我下载了Android平台的SDK（例如Android 4.0的）我没有下载谷歌API的原因不知道，我需要它来实现这一feature.However，我回去，并下载了它。我该如何将它添加到现有的项目。做了一些搜索和所有展示了如何启动一个新的项目与API但不知道如何将其添加到现有的项目。

I am writing an android app that will use Google Maps but to implement this I need the Google API. When I downloaded the android platform sdk (example android 4.0) I did not download the Google API cause did not know that I would need it to implement this feature.However, I went back and downloaded it. How do I add it to my existing project. Did some searching and all showed how to start a new project with the API but not how to add it to the existing project.

推荐答案

既然你已经下载了，你正在开发，例如安卓4.谷歌的API的版本，所有你需要做的是：

Since you have already downloaded the Google APIs for the version that you are developing for, example Android 4. all you have to do is:

右键点击您的项目 - ＆GT;进入属性 - ＆GT;那么Android的 - ＆GT;然后选择谷歌的API，在API级别14