question: public void handleConfiguration ( Class < OpsType > opsType ) throws InstantiationException , IllegalAccessException { if ( mRetainedFragmentManager . firstTimeIn ( ) ) { Log . d ( TAG , "First time onCreate() call" ) ; initialize ( opsType ) ; } else { Log . d ( TAG , "Second or subsequent onCreate() call" ) ; mOpsInstance = mRetainedFragmentManager . get ( opsType . getSimpleName ( ) ) ; if ( mOpsInstance == null ) initialize ( opsType ) ; else mOpsInstance . onConfiguration ( this , false ) ; } }
target:  Handle hardware (re)configurations, such as rotating the display.