Arduino Serial.println be sent in android textbox

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http://stackoverflow.com – Good Day! I don't really know how to ask the right question but I'll try to explain the situation thoroughly. Im trying to make a 12-button keypad for android phones, I used a Mini Clone version of arduino Atmeg168, a 3x4 keypad, and a bluetooth shield, honestly, I havent really successfully show up all the alphabets. I'm using a Android App called Bluetooth SPP to receive the serial data being transfer by the bluetooth, What I want to achieve is to being able put the characters or send the characters that are being send to a textbox of the android. Is it Possible? here's the code Ive been u (HowTos)