I meets some problems so I want to find the source code of the Android support libraries . For example , I want to read the ActionBarActivity.java source code in version 19.
You can browse to your sdk directory and support directory and you can find the aar files there- on mac its i located on
/Users/username/Library/Android/sdk/extras/android/m2repository/com/android/support/
Ensure you are having the the version you want to see. And Then change the version in your gradle.build to the one you need. Then sync the project, Now Change the explorer mode of android studio to the project mode.
Now you can browse to the external libraries to see the sources.