Non-compact version
1.1.5_r3:http://rapidshare.com/files/304445926/sources_1.5_r3.zip
2.1.6_r2:http://devfrustrated.com/devblog/wp-content/uploads/2010/07/sources_1.6.zip
3.2.0 (Master branch): Http://rapidshare.com/files/304452966/sources-master.zip
4.2.1_r2:http://devfrustrated.com/devblog/wp-content/uploads/2010/07/sources_2.1.zip
5.2.2:http://devfrustrated.com/devblog/wp-content/uploads/2010/07/sources_2.2.zip
Android2.3:http://lizongbo.googlecode.com/files/android_gingerbread_javasrc.zip
How to install: Create a new Sources folder yourself under the Android-sdk-windows/platforms/android-8 directory
Extract the source code into this folder. The sources directory below is the Android Java subdirectory. Restart Eclipse.
If your eclipse Android uses Android level 8, android2.2. Then you can see the source code. If you're using android1.5, it's the same. Download the source package and unzip the package to the Android-sdk-windows/platforms/android-3 directory.
Principle: http://log4think.com/browsing-android-source-in-eclipse/
Own production: http://618119.com/archives/2011/01/01/201.html