I am using the linked hashmap to populate values in expandable list .I successfully populate them. Here key is the menuitems and values are corresponding modifiers I places two buttons foe increasing and decreasing quantity of menu items .As it is the key I remove them and update them and again I put them in the list. This time they are inserting on the lastrow . How to placethem in same position as they were before deletion? The function where i update my key.
public void putminusquantity(int pos)
{
try
{
SaleDetailsMenuItems aa = (SaleDetailsMenuItems)listDataChild.keySet().toArray()[pos];
List<ModifList> modlist =listDataChild.get(aa);
//modlist.add(mli);
listDataChild.remove(aa);
int qty = Integer.parseInt(aa.getQuantity());
float priced = Float.parseFloat(aa.getPrice());
//Double finaltotal1 = Math.round( priced * 100.0 ) / 100.0;
//Toast.makeText(getApplicationContext(), finaltotal1.toString(), Toast.LENGTH_SHORT).show();
System.out.println(qty);
float priced1 = priced / qty;
if(qty>1)
{
qty--;
priced = priced1 * qty;
String quantity1 = Integer.toString(qty);
String price1 = Float.toString(priced);
aa.setQuantity(quantity1);
aa.setPrice(price1);
listDataChild.put(aa, modlist);
listviewAdapter = new ExpandableListAdapter(getApplicationContext(), listDataChild);
list.setAdapter(listviewAdapter);
listviewAdapter.notifyDataSetChanged();
resetquantity();
settotal();
}
else
{
Toast.makeText(getApplicationContext(), "Invalid Quantity", Toast.LENGTH_SHORT).show();
}
}
catch(Exception e)
{
System.out.println(e);
}
}
Here is the model class:
class SaleDetailsMenuItems extends Sale
{
int i;
private int id;
private String name;
private String price;
private String quantity;
private int statuss;
private String itemnote;
private long saledetailId;
private long saleid;
private int menutype;
private long menu_id;
private int istaxinclusive;
private int coursing_id;
private String seatname;
private int seatId;
private String reason;
// private int discountdtls;
private int istaxexmpt;
private float taxpercent;
//private float inctaxpercent;
private float taxamt;
private float incltaxamt;
private int ordertype;
private boolean istaxincl;
private int storeid;
private int crtdby;
private int modby;
private int status;
public SaleDetailsMenuItems(int i1,String item, String quantity,
String price, int id, int statuss,String itemnote)
{
// TODO Auto-generated constructor stub
this.i=i1;
this.id=id;
this.name = item;
this.quantity = quantity;
this.price = price;
this.statuss = statuss;
this.itemnote = itemnote;
//this.flag = flag;
}
public int getStatuss() {
return statuss;
}
public void setStatuss(int statuss) {
this.statuss = statuss;
}
public long getSaledetailId() {
return saledetailId;
}
public void setSaledetailId(long saledetailId) {
this.saledetailId = saledetailId;
}
public long getSaleid() {
return saleid;
}
public void setSaleid(long saleid) {
this.saleid = saleid;
}
public int getMenutype() {
return menutype;
}
public void setMenutype(int menutype) {
this.menutype = menutype;
}
public long getMenu_id() {
return menu_id;
}
public void setMenu_id(long menu_id) {
this.menu_id = menu_id;
}
public int getIstaxinclusive() {
return istaxinclusive;
}
public void setIstaxinclusive(int istaxinclusive) {
this.istaxinclusive = istaxinclusive;
}
public int getCoursing_id() {
return coursing_id;
}
public void setCoursing_id(int coursing_id) {
this.coursing_id = coursing_id;
}
public String getSeatname() {
return seatname;
}
public void setSeatname(String seatname) {
this.seatname = seatname;
}
public int getSeatId() {
return seatId;
}
public void setSeatId(int seatId) {
this.seatId = seatId;
}
public String getReason() {
return reason;
}
public void setReason(String reason) {
this.reason = reason;
}
public int getIstaxexmpt() {
return istaxexmpt;
}
public void setIstaxexmpt(int istaxexmpt) {
this.istaxexmpt = istaxexmpt;
}
public float getTaxpercent() {
return taxpercent;
}
public void setTaxpercent(float taxpercent) {
this.taxpercent = taxpercent;
}
public float getTaxamt() {
return taxamt;
}
public void setTaxamt(float taxamt) {
this.taxamt = taxamt;
}
public float getIncltaxamt() {
return incltaxamt;
}
public void setIncltaxamt(float incltaxamt) {
this.incltaxamt = incltaxamt;
}
public int getOrdertype() {
return ordertype;
}
public void setOrdertype(int ordertype) {
this.ordertype = ordertype;
}
public boolean isIstaxincl() {
return istaxincl;
}
public void setIstaxincl(boolean istaxincl) {
this.istaxincl = istaxincl;
}
public int getStoreid() {
return storeid;
}
public void setStoreid(int storeid) {
this.storeid = storeid;
}
public int getCrtdby() {
return crtdby;
}
public void setCrtdby(int crtdby) {
this.crtdby = crtdby;
}
public int getModby() {
return modby;
}
public void setModby(int modby) {
this.modby = modby;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
public String getQuantity() {
return quantity;
}
public void setQuantity(String quantity) {
this.quantity = quantity;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public int getStatus() {
return statuss;
}
public void setStatus(int statuss) {
this.statuss = statuss;
}
public String getItemnote() {
return itemnote;
}
public void setItemnote(String itemnote) {
this.itemnote = itemnote;
}
} I am using this class's object as key in my Map.
