if you have Android project generated by activitycreator tool (e.g. book sample code) and you want to import it into Eclipse here are the steps:
- Create new workspace in Eclipse (optional) anywhere OUTSIDE of the folder that contains project you are importing
- Click File -> New -> Android Project
- From the pop-up select “Create project from existing source” and navigate to the top folder of Android project you are importing

How to import .apk apps in eclipse
- Click “Finish”. Voila! You done
