##Describe This project is a practium
##TODO
- Update the UI
##Version
- V0.0.6
- Use database istead of file to store data
- V0.0.5
- Add function to get friend list
- V0.0.4
- Add HeartBeat
- Fix the logical of auto sign in
- V0.0.3
- Add auto sign in function
- V0.0.2
- Fix a small bug
- V0.0.1
- Create the project
- Add a default MainActivity
- Add a service to test socket connect and use a activity to use it