First, you need to include ActionBarSherlock into your project, you can do this by import the file aar that you find in this site:
http://gradleplease.appspot.com/
Then, search for actionbarsherlock and you will find this piece of code:
dependencies {
compile 'com.actionbarsherlock:actionbarsherlock:4.4.0@aar'
}
Put this code into your build.gradle
file (inside app folder). If the dependencies it's alreay there, just include the compile ...
line.
The next step is add the SlidingMenu into your project, check into this repository the dependency for the project:
https://github.com/jzaccone/SlidingMenu-aar
Then add into build.gradle
as same as above.
You can also clone the SlidingMenu into your project and import manually, It's up to you.
Remember to change all of your activities and fragments to extends the
SherlockActivity / SherlockFragment.