java - Android telnet client through apache commons -


i new android, want write telnet client app android. have written code using apache commons library telnet. able connect telnet server (for have used asyctask concept) , able read login banner after long time don't know causing that. have modified example given in apache commons work android code.i have 2 java codes in "src" folder (mainactivity.java , telnetclientexample.java). first, want login prompt , want user interact please help, in advance :) posting screen capture of getting.

mainactivity.java

package com.example.telnetapp; import java.io.bufferedinputstream; import java.io.inputstream; import java.io.printwriter;  import android.app.activity; import android.os.asynctask; import android.os.bundle; import android.view.menu; import android.view.menuitem; import android.view.view; import android.view.view.onclicklistener; import android.widget.button; import android.widget.edittext; import android.widget.textview; import android.widget.toast;  public class mainactivity extends activity{     public static int port_int_address;     private edittext server,port;     private button connect;     public static string ip,port_address;     public printwriter out;     public static textview textresponse;     static string response;     public inputstream instr;     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);         server = (edittext)findviewbyid(r.id.edittext1);         port = (edittext)findviewbyid(r.id.edittext2);         connect = (button)findviewbyid(r.id.connect);         textresponse = (textview)findviewbyid(r.id.response);         connect.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view v) {                 ip = server.gettext().tostring();                 port_address = port.gettext().tostring();                 port_int_address = integer.parseint(port_address);                 try{                     myclienttask task = new myclienttask(ip, port_int_address);                     task.execute();                 }                 catch(exception e){toast.maketext(getapplicationcontext(), e.tostring(), toast.length_long).show();}               }          });     }       @override     public boolean oncreateoptionsmenu(menu menu) {         getmenuinflater().inflate(r.menu.main, menu);         return true;     }      @override     public boolean onoptionsitemselected(menuitem item) {         int id = item.getitemid();         if (id == r.id.action_settings) {             return true;         }         return super.onoptionsitemselected(item);     }      public class myclienttask extends asynctask<void, void, void> {           string dstaddress;           int dstport;           telnetclientexample job;           myclienttask(string inetaddress, int port){            dstaddress = inetaddress;            dstport = port;           }           @override           protected void doinbackground(void... arg0) {            try {                job = new telnetclientexample();                job.backgroundjob();             }            catch (exception e)             {                toast.maketext(getapplicationcontext(), e.tostring(), toast.length_short).show();             }             return null;           }            @override           protected void onpostexecute(void result) {                try {                  instr = telnetclientexample.tc.getinputstream();                  byte[] buff = new byte[1024];                  int ret_read = 0;                                   {                   ret_read = instr.read(buff);                   if(ret_read > 0)                    {                       mainactivity.response += new string(buff, 0, ret_read);                    }                  }                  while (ret_read >= 0);                 }                  catch (exception e) {                     mainactivity.response += e.tostring();                     mainactivity.response += "from reading telnet server ! \n";                   }                 textresponse.settext(response);                 super.onpostexecute(result);              }      } }

telnetclientexample.java

package com.example.telnetapp; import java.io.ioexception; import java.io.inputstream;  import org.apache.commons.net.telnet.telnetclient; public class telnetclientexample {     public string remoteip = mainactivity.ip;     public int remoteport= mainactivity.port_int_address;     public static telnetclient tc = null;     public  void backgroundjob() throws ioexception {          tc = new telnetclient();             try {                 tc.connect(remoteip, remoteport);                 }             catch (exception e) {             }     }      public void close_con(){         try {             tc.disconnect();         }         catch (exception e) {             mainactivity.response += e.tostring();             mainactivity.response += "from reading disconnecting telnet server ! \n";         }     } }     problem in code snippet . please , me interactive session.        protected void onpostexecute(void result) {        try {          instr = telnetclientexample.tc.getinputstream();          byte[] buff = new byte[1024];          int ret_read = 0;                   {           ret_read = instr.read(buff);           if(ret_read > 0)            {               mainactivity.response += new string(buff, 0, ret_read);            }          }          while (ret_read >= 0);         }          catch (exception e) {             mainactivity.response += e.tostring();             mainactivity.response += "from reading telnet server ! \n";           }         textresponse.settext(response);         super.onpostexecute(result);      }

the problem getting - enter image description here


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