Eclipse: view the android source package (eclipse imports the android source package)

I used to, but I forgot to leave the draft for a long time. I 'd like to write it down:

Download the source code package of the corresponding version, such as android-2.3-src.rar, android-2.3.3-src.rar,

After the download, create the Sources folder in the corresponding platforms version, put the downloaded file, and decompress it.

In the android project of the corresponding version, right-click android. jar, then click Properties-> external forder-> select the decompressed sources directory (My: e:/PD/android-sdk_r18-windows/platforms/Android-2.3.3/sources ), after you click OK, press the Alt key and click the function or class name to view the source code ~~~