question: public static Boolean deleteAppFiles ( ) { Boolean res = false ; File f = getAppFolder ( ) ; if ( f . exists ( ) && f . isDirectory ( ) ) { File [ ] files = f . listFiles ( ) ; for ( File file : files ) { file . delete ( ) ; } if ( f . listFiles ( ) . length == 0 ) { res = true ; } } return res ; }
target:  Delete all the extracted APKs