It will be empty. Nothing to worry. It a library with resources.
http://developer.android.com/tools/support-library/features.html#v7-appcompat
And to setup
http://developer.android.com/tools/support-library/setup.html
Question
I was adding the android.support.v7.appcompat library to my Android project and found that there was no class in src!
So I went into the $ANDROID_SDK/extras/android/support/v7/appcompat/src and it was indeed empty.
So is it supposed to be empty or am I the only one and if I am the only one then how do I solve this problem
La solution
It will be empty. Nothing to worry. It a library with resources.
http://developer.android.com/tools/support-library/features.html#v7-appcompat
And to setup
http://developer.android.com/tools/support-library/setup.html