Hi
 i have done with listactvity in my application ,now i need expand
when clicks and for each item
and again click on expandble list items should be back in same screen.
can you please guide me any one about this


///////////////////

package com.android.samplelisy;


import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;

public class samplelist extends ListActivity {
        String[] values = new String[] { "Application", "product",
        "Sabicproduct" };
        @Override
        public void onCreate(Bundle icicle) {
                super.onCreate(icicle);
                
                
                // Use your own layout
                ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                                R.layout.main, R.id.label, values);
                setListAdapter(adapter);
        }
                
                

        
          @Override
          protected void onListItemClick(ListView l, View v, int position, long 
id)
          {
                  String item = (String)
         getListAdapter().getItem(position);
        
                  switch (position) {
                  case 0:
                          l.setOnItemClickListener(new 
AdapterView.OnItemClickListener() {
                                    @Override
                                    public void onItemClick(AdapterView<?> av, 
View v, int pos, long id) {
                                       // onListItemClick(v,pos,id);
                                        
                                    }

                                        private void onListItemClick(View v, 
int pos, long id) {
                                                // TODO Auto-generated method 
stub
                                                
                                        }
                                });

                  break; case 1:
                
                break;
                
                 }
          }


}

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