HC-SR04 comunicate android

Hello friends, sorry my English because I am using a translator.
Next, I have a project in electronics and I want my android app to communicate with my sensor HC-SR04, I'm using JY-MCU to communicate with my bluetooth device.
The HC-SR04 returns on the screen of android its results second by second!
Ideas of how to assemble the blocks android?'m Out of ideas! : (

sayoan@gmail.com