Create 2 groups in expandable listview

**krishnaveni** · 08-14-2012, 07:52 AM

Hi i have try to develop expandable listview in android application.now i have one doubts.how is creating 2 groups ion below my code for separate child details...For Eg:
Group name:
OrderInfo,CustomerInfo.
Childname(OrderInfo)ayment_method.
Childname(CustomerInfo):name,email.How is to do.Please help me.

Java Code:

SimpleExpandableListAdapter expListAdapter =
            new SimpleExpandableListAdapter(
                    this,
                    
                    createGroupList(),              // Creating group List.
                    R.layout.group_row,  
                  // Group item layout XML.
                    new String[] { "OrderInfo","CustomerInfo"},  // the key of group item.
                    new int[] { R.id.order,R.id.customer},
                    
                    // ID of each group item.-Data under the key goes into this TextView.
                    createChildList(),              // childData describes second-level entries.
                    R.layout.single_list_item,  
                  //  new String[] {"KEY_ARTIST"},  
                   // new int[] { R.id.payment_label}  // Keys in childData maps to display.
                      // Layout for sub-level entries(second level).
                   new String[] {"KEY_ARTIST","KEY_DURATION","KEY_SUBTOTAL","KEY_DISCOUNT","KEY_COUPON","KEY_COST"},  
                   new int[] { R.id.payment_label,R.id.total_label,R.id.discount_label,R.id.discount_label,R.id.coupon_label,R.id.cost_label}// Keys in childData maps to display.
                 //   new int[] { R.id.payment_label,R.id.total_label}     // Data under the keys above go into these TextViews.
                );
            setListAdapter( expListAdapter );       // setting the adapter in the list.
 
        }catch(Exception e){
            System.out.println("Errrr +++ " + e.getMessage());
        }
    }
   
    /* Creating the Hashmap for the row */
    @SuppressWarnings("unchecked")
    private List createGroupList() {
          ArrayList result = new ArrayList();
          for( int i = 0 ; i < 1 ; ++i ) { // 15 groups........
            HashMap m = new HashMap();
          //  m.put( "OrderInfo","CustomerInfo"); // the key and it's value.
           m.put( "OrderInfo", OrderInfo);
         
            result.add( m );
          }
          return (List)result;
          
    }
    
 

    /* creatin the HashMap for the children */
    @SuppressWarnings("unchecked")
    private List createChildList() {
 
        ArrayList result = new ArrayList();
        for( int i = 0 ; i < 1 ; ++i ) { // this -15 is the number of groups(Here it's fifteen)
          /* each group need each HashMap-Here for each group we have 3 subgroups */
          ArrayList secList = new ArrayList();
          for( int n = 0 ; n < 1 ; n++ ) {
            HashMap child = new HashMap();
            Intent in = getIntent();
            String payment_method = in.getStringExtra(KEY_ARTIST);
            TextView lblPayment = (TextView) findViewById(R.id.payment_label);
         ///  lblPayment.setText(payment_method);
           int payment;
           payment=1;
           
        
          
           String s= getIntent().getStringExtra("payment_method");
           String s1= getIntent().getStringExtra("total");
           String s2= getIntent().getStringExtra("subtotal");
           String s3= getIntent().getStringExtra("discount");
           String s4= getIntent().getStringExtra("coupon_discount");
           String s5= getIntent().getStringExtra("shipping_cost");

         child.put( "KEY_ARTIST", s);
         child.put( "KEY_DURATION", s1);
         child.put( "KEY_SUBTOTAL", s2);
         child.put( "KEY_DISCOUNT", s3);
         child.put( "KEY_COUPON", s4);
         child.put( "KEY_COST", s5);
            secList.add( child);
          }
         result.add( secList );
        }
        return result;
    }

Here my above code is not worked..so please help me i have to change what line.