ActionBarSherlock - extension of the support library designed to facilitate the use of the action bar design pattern across all versions of Android with a single API.
The library will automatically use the native action bar when appropriate or will automatically wrap a custom implementation around your layouts. This allows you to easily develop an application with an action bar for every version of Android from 2.x and up.
ProGuard rules for ActionBarSherlock
ProGuard optimizes the your code and will try remove all unused classes. Remaining classes, fields, and methods after obfuscation phase will be with short names. Specify the following ProGuard rules in proguard-rules.pro file.
-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }
-keepattributes *Annotation*
For more information about ActionBarSherlock please see the website.