android - client can't send message from separate class -

i created socket program on android studio. first create on main class , working. of site separate connect , disconnect works. there problem when client send message on server. whenever put letter, output blank space.

separate class

public class socketclient extends thread {  string serverm = null;  socket client; string socketdata; context context; string message; string address; public boolean mrun = true; private printwriter printwriter;  public socketclient (string address, context context, string message  ) {     this.address = address;     this.context = context;     this.message = message; }  @override public void run(){     mrun = true;     try {         client = new socket(address, 3818);         bufferedreader mbufferin = new bufferedreader(                 new inputstreamreader(client.getinputstream()));          while (mrun) {             serverm = mbufferin.readline();              if (serverm != null) {                 system.out.println(serverm);                 socketdata = serverm;             }         }     } catch (unknownhostexception e) {         e.printstacktrace();     } catch (ioexception e) {         e.printstacktrace();     } }  public void stopsocket() {     if(client !=null)     {         toast.maketext(context, "disconnected", toast.length_long).show();         try {             client.close();         }         catch (ioexception e) {             // todo auto-generated catch block             e.printstacktrace();         }     }     else{         toast.maketext(context, "socket not found", toast.length_long).show();     } }   public void sendsocket() {     if (message != null) {         try {              printwriter = new printwriter(client.getoutputstream(),true);             printwriter.write(message + "\r\n"); // write message output stream             printwriter.flush();          }catch (unknownhostexception e) {             e.printstacktrace();         } catch (ioexception e) {             e.printstacktrace();         }     }     toast.maketext(context, "sent", toast.length_long).show(); } 

}

main class

 @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      textfield = (edittext) findviewbyid(r.id.message); // reference text field     connect = (button) findviewbyid(r.id.connect); // reference connect button     disconnect = (button) findviewbyid(r.id.disconnect); // reference connect button     send = (button) findviewbyid(r.id.send); // reference send button     edittextaddress = (edittext) findviewbyid(r.id.address); // reference address      disconnect.setonclicklistener(disconnectonclicklistener);     connect.setonclicklistener(connectonclicklistener);     send.setonclicklistener(sendonclicklistener); }  //button send onclicklistener sendonclicklistener = new onclicklistener() {      public void onclick(view v) {          thread.sendsocket();         textfield.settext(""); // reset text field blank         }  };  //button disconnect onclicklistener disconnectonclicklistener = new onclicklistener() {      public void onclick(view v) {         thread.stopsocket();     }  };  //button connect onclicklistener connectonclicklistener = new onclicklistener() {      public void onclick(view v) {         toast.maketext(getapplicationcontext(),"connected",toast.length_long).show();         thread = new socketclient(edittextaddress.gettext().tostring(), getapplicationcontext(), textfield.gettext().tostring());          thread.start();     } }; 

now know i'm missing. sorry inconvenience.

separate class

public void sendsocket(string newmessage ) {     if (newmessage != null) {         try {             printwriter = new printwriter(socket.getoutputstream(),true);             printwriter.write(newmessage + "\r\n"); // write message output stream             printwriter.flush();          }catch (unknownhostexception e) {             e.printstacktrace();         } catch (ioexception e) {             e.printstacktrace();         }     } } 

}

main class

view.onclicklistener sendonclicklistener = new view.onclicklistener() {      public void onclick(view v) {           thread.sendsocket(textfield.gettext().tostring());      }  };