connect method
void
connect()
Implementation
void connect() {
if (_state == XmppConnectionState.Closing) {
_state = XmppConnectionState.WouldLikeToOpen;
}
if (_state == XmppConnectionState.Closed) {
_state = XmppConnectionState.Idle;
}
if (_state == XmppConnectionState.Idle) {
openSocket();
}
}