Restrict edittext for numeric and capital alphabets input is so easy in android. We just need to add two lines of code in xml file and we are ready. textCapCharacters
Socket connection is made of server and client. Server can be a computer which is bounded to particular address (host name) and specific port number, and client can be a browser or application, which already knows address and port where server is listening.
Stream inside BLoC – solve ConnectionState.waiting problem