public static String getReadableFileSize ( int size ) { final int BYTES_IN_KILOBYTES = 1024 ; final DecimalFormat dec = new DecimalFormat ( "###.#" ) ; final String KILOBYTES = " KB" ; final String MEGABYTES = " MB" ; final String GIGABYTES = " GB" ; float fileSize = 0 ; String suffix = KILOBYTES ; if ( size > BYTES_IN_KILOBYTES ) { fileSize = size / BYTES_IN_KILOBYTES ; if ( fileSize > BYTES_IN_KILOBYTES ) { fileSize = fileSize / BYTES_IN_KILOBYTES ; if ( fileSize > BYTES_IN_KILOBYTES ) { fileSize = fileSize / BYTES_IN_KILOBYTES ; suffix = GIGABYTES ; } else { suffix = MEGABYTES ; } } } return String . valueOf ( dec . format ( fileSize ) + suffix ) ; }
Get the file size in a human - readable string .