Text Message Simple development question

[Evanmg7]

Hi,

I am in the process of creating a simple android app to do have a number of functions using text messages. I currently can not find out the directory or some way in code to access text messages on my phone. I will need the text messages in order to create a search bar so that I can create my program. Someone please tell me the directory (I believe it might be somewhere under SDCARD but I am not unable to find them)

Thank you,

Evan