I am new in android development. recently I've developed an android app, that accesses my FTP server by entering the required user-name and password. and i want to publish this app on Google play store. but some of my android developer friends told me that these .apk files can easily be cracked and if it does, all my data on FTP will be hacked, and I'll be GONE !
Can anyone please provide me a possible solution to either hide my username and password from hackers ? or any other alternative solution of accessing my FTP server ?