Before you can apply Compatibility Package on your project, you have to prepare something first:
- First of all, make sure you have installed Compatibility Package:
In Eclipse, click Window -> Android SDK Manager, scroll down to Extras, install Android Compatibility package.
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- Include Compatibility Package in your Build Path:
Right click on your project in Package Explorer, -> Properties.
Select Java Build Path tab on the left.
Click Add External JARS button on the right.
Browse to select your instaled android-support-v4.jar, and click OK.
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Now you should have android-support-v4.jar in your Java Build Path, click OK.
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updated@2011-12-27:
It's called Android Support Package now, in /android-sdks/extras/android/support/v4/android-support-v4.jar
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next:
- Example of using Compatibility Package, implement Fragment on pre-Android 3.0 devices