Changing from Android 2.2 to 2.1

I have developed an app using android 2.2, I want to downg开发者_开发知识库rade it to 2.1 (to do some testing), Is this possible? If so how do I do this?

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Right click on the project > BuildPath > configureBuildPath it will open properties box of project select android in left side box, and change the version

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Well on most handsets you can only the version supplied by your vendor. But the android emulators can be used with all versions you want.

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Here is a list that lines up the API number with the version of android.

As mentioend above (Someone beat me to the steps) the best thing to do is simply change that one number in eclipse, and wa-la you will be targeting that specific version.