Android app development for R pi

hey Ceans,
can you help me build a android app with SSH access.
My requirements are if i click on a button certain command must be executed on the client.
i have made a small apk with buttons and as dont have android programming knowledge i am not able so build ssh server

actually i want to control my raspberry pi with that app!

an simple example
#-Link-Snipped-#

i would like a custom app like that with my own commands.

can any one provide me the source code like in the app above ?