android send all .txt line to arduino via bluetooth

Using Arduino Networking, Protocols, and Devices
1

I need android application to send all line from all .txt from folder to arduino via bluetooth and delete txt
I need this to my arduino watch project and send android notification to arduino nano
Please help me

Sorry for my bad english but im living in Poland

2

I suspect you will need to ask on an Android Forum for an Android application.

On the Arduino side have a look at the examples in Serial Input Basics - simple reliable ways to receive data.

...R