I want to implement the reclyerview to behave like following
items by default will be grey color and the other button hidden until on button add click:
The expansion happens one item per list if any other item is expanded clicking on the next item will first close any open item and then open the new one:
I have tried to implement it but every time a single item clicked and the expansion occurs, then no other item in the list will expand even though clicking on the plus button increases the number on it.
Also the expansion can appear on all items while on the reference its only one item per click that expands.
Here is my code
public class SalesProductsAdapter extends
RecyclerView.Adapter<SalesProductsAdapter.Vh>
implements
TextWatcher,Filterable,View.OnClickListener,AdapterView.OnItemClickListener
{
public List<SalesProductsItems> mItems = new ArrayList<SalesProductsItems>();
public static List<SalesProductsItems> filteredIt = new ArrayList<SalesProductsItems>();
#Override
public Vh onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.selling_screen_sellitems, parent, false);
Vh vh = new Vh(v);
return vh;
}
#Override
public void onBindViewHolder(final Vh holder, final int position) {
final SalesProductsItems cl = filteredIt.get(position);
if(pitems != null && pitems.size() > 0){
for(int j = 0; j < pitems.size(); j++){
Pending_Items _pitems = pitems.get(j);
long proid = cl.getProdid();
long _proid = _pitems.getProdloc();
if(proid == _proid){
prodname = cl.getProduct();
qty[0] = new BigDecimal(_pitems.getQty()).intValue();
unit[0] = _pitems.getPrice();
} else {
prodname = cl.getProduct();
qty[0] = new BigDecimal(cl.getQuantity()).intValue();
unit[0] = cl.getUnit();
}
}
} else {
prodname = cl.getProduct();
qty[0] = new BigDecimal(cl.getQuantity()).intValue();
unit[0] = cl.getUnit();
}
items = pitems.size();
if(items > 0)
imgnext.setVisibility(View.VISIBLE);
else
imgnext.setVisibility(View.GONE);
holder.txtproduct.setText(prodname);
updateViews(qty[0], holder);
if(qty[0] > 0){
System.out.println(" qty is " + s_qty);
holder.imgminus.setVisibility(View.GONE);
holder.imgadd.setVisibility(View.GONE);
holder.txtqty.setText(s_qty[0]);
holder.txtunit.setText(s_unit);
holder.txtsubtotal.setText(s_subtotal[0]);
} else {
holder.imgminus.setVisibility(View.GONE);
holder.txtqty.setVisibility(View.GONE);
holder.txtunit.setText(s_unit);
holder.txtsubtotal.setVisibility(View.GONE);
}
holder.imgadd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
qty[0] += 1;
if(Products.checkQty(context,cl.getProdid(),qty[0])) {
if (qty[0] == 1) {
s_qty[0] = String.valueOf(qty[0]);
holder.txtqty.setText(s_qty[0]);
holder.txtqty.setVisibility(View.VISIBLE);
holder.imgminus.setVisibility(View.VISIBLE);
process_item(cl, holder,position);
changeBg(holder,qty[0]);
holder.txtsubtotal.setVisibility(View.VISIBLE);
} else {
s_qty[0] = String.valueOf(qty[0]);
holder.txtqty.setText(s_qty[0]);
process_item(cl, holder,position);
holder.txtsubtotal.setVisibility(View.VISIBLE);
}
} else {
Toast.makeText(context,cl.getProduct() + " " + context.getResources().getString(R.string
.strsalesquantityerror1) +
" " + Products.getItemOnHand(context,String.valueOf(cl.getProdid())) + " " + context.getResources()
.getString(R.string.strsalesquantityerror2), Toast.LENGTH_LONG).show();
}
}
});
holder.layview.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(holder.imgminus.getVisibility() == View.VISIBLE){
holder.imgminus.setVisibility(View.GONE);
if(qty[0] == 0) {
holder.imgadd.setVisibility(View.VISIBLE);
holder.txtqty.setVisibility(View.GONE);
}
else {
holder.txtqty.setVisibility(View.VISIBLE);
holder.imgadd.setVisibility(View.GONE);
holder.txtqty.setText(s_qty[0]);
}
} else {
Intent intent = new Intent(context,SingeItem.class);
intent.putExtra(Constants.SOURCE,Constants.SALETYPE_SALE);
intent.putExtra(Products.PRODUCTNAME,cl.getProdid());
intent.putExtra(Products.ID, position);
context.startActivity(intent);
}
}
});
holder.txtqty.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(holder.imgadd.getVisibility() == View.GONE){
holder.txtqty.setText(s_qty[0]);
holder.imgadd.setVisibility(View.VISIBLE);
holder.imgminus.setVisibility(View.VISIBLE);
}
}
});
}
// Return the size of your dataset (invoked by the layout manager)
#Override
public int getItemCount() {
return filteredIt.size();
}
#Override
public long getItemId(int arg0){
return 0;
}
private void updateViews(int qt, Vh holder){
double un = unit[0];
double st = new BigDecimal(qt).multiply(new BigDecimal(un)).doubleValue();
s_qty[0] = String.valueOf(qt);
s_subtotal[0] = new BigDecimal(st).setScale(2, RoundingMode.HALF_UP).toString();
s_subtotal[0] = currency + " " + new BigDecimal(subtotal[0]).setScale(2, RoundingMode.HALF_UP).toString();
s_unit = currency+" "+new BigDecimal(unit[0]).setScale(2, RoundingMode.HALF_UP).toString();
holder.txtsubtotal.setText(s_subtotal[0]);
holder.txtunit.setText(s_unit);
holder.txtsubtotal.setVisibility(View.VISIBLE);
if(qt > 0)
imgnext.setVisibility(View.VISIBLE);
else
imgnext.setVisibility(View.GONE);
gtotal += subtotal[0];
txtt.setText(currency + " " + new BigDecimal(gtotal).setScale(2, RoundingMode.HALF_UP).toString());
txti.setText("/ " + items + " " + context.getString(R.string.stritems));
}
}
1) At a time if you want to show/hide only one element this one work fine
Step1)
create a variable and set its value to=-1;
int currentPosition=-1;
Step2)
On bind viewHolder,on itemClick update currentPosition to holder position
onBindViewHolder(ViewHolder v,int position)
{
view.Onclick(...{currentPosition=position;});
if(currentPosition==position)
view.setVisiblity(Visible);
else
view.setVisibility(Gone);
}
2) If you want to show more item on any button click then
Create 2 arrayList,first arrayList store total value and second
arrayList display only few elements in holder;
now on button click add all element to other arrayList and notify.
Related
I have a recycler view that was expanded as implemented here. I want to implement onClickListener on the children of the recycler view so that when i click the child, i will get a Toast message displaying the text that is contained in the child textview.
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
final Item item = data.get(position);
switch (item.type) {
case HEADER:
final MyViewHolder itemController = (MyViewHolder) holder;
itemController.referalItem = item;
itemController.alphabet.setText(item.text.toString());
if (item.invisibleChildren == null) { itemController.btn_expand_toggle.setImageResource(R.mipmap.knob_add);
} else { itemController.btn_expand_toggle.setImageResource(R.mipmap.knob_remove);
}
itemController.btn_expand_toggle.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (item.invisibleChildren == null) {
item.invisibleChildren = new ArrayList<Item>();
int count = 0;
int pos = data.indexOf(itemController.referalItem);
while (data.size() > (pos + 1) && data.get(pos + 1).type == CHILD) {
item.invisibleChildren.add(data.remove(pos + 1));
count++;
}
notifyItemRangeRemoved(pos + 1, count);
itemController.btn_expand_toggle.setImageResource(R.mipmap.knob_add);
} else {
int pos = data.indexOf(itemController.referalItem);
int index = pos + 1;
for (Item i : item.invisibleChildren) {
data.add(index, i);
index++;
}
notifyItemRangeInserted(pos + 1, index - pos - 1);
itemController.btn_expand_toggle.setImageResource(R.mipmap.knob_remove);
item.invisibleChildren = null;
}
}
});
break;
case CHILD:
final TextView itemTextView = (TextView) holder.itemView;
try {
itemTextView.setText(data.get(position).text.toString());
itemTextView.setOnClickListener(new View.OnClickListener() { //setting the onclicklistener
#Override
public void onClick(View v) throws NullPointerException {
Toast.makeText(context, itemTextView.getText().toString(), Toast.LENGTH_SHORT).show(); //Gives nullpointer error
}
});
} catch (NullPointerException e){
}
break;
But i get NullPointerException whenever i click on the child in the recyclerview.Any help will be appreciated. Thank you.
modify adapter code
public class ExpandableListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
//-----add
interface OnItemClickListener{
void OnItemClick(int position);
}
OnItemClickListener onItemClickListener;
public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
this.onItemClickListener = onItemClickListener;
}
//------
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
final Item item = data.get(position);
switch (item.type) {
case HEADER:
final ListHeaderViewHolder itemController = (ListHeaderViewHolder) holder;
itemController.refferalItem = item;
itemController.header_title.setText(item.text);
if (item.invisibleChildren == null) {
itemController.btn_expand_toggle.setImageResource(R.drawable.circle_minus);
} else {
itemController.btn_expand_toggle.setImageResource(R.drawable.circle_plus);
}
itemController.btn_expand_toggle.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (item.invisibleChildren == null) {
item.invisibleChildren = new ArrayList<Item>();
int count = 0;
int pos = data.indexOf(itemController.refferalItem);
while (data.size() > pos + 1 && data.get(pos + 1).type == CHILD) {
item.invisibleChildren.add(data.remove(pos + 1));
count++;
}
notifyItemRangeRemoved(pos + 1, count);
itemController.btn_expand_toggle.setImageResource(R.drawable.circle_plus);
} else {
int pos = data.indexOf(itemController.refferalItem);
int index = pos + 1;
for (Item i : item.invisibleChildren) {
data.add(index, i);
index++;
}
notifyItemRangeInserted(pos + 1, index - pos - 1);
itemController.btn_expand_toggle.setImageResource(R.drawable.circle_minus);
item.invisibleChildren = null;
}
}
});
break;
case CHILD:
TextView itemTextView = (TextView) holder.itemView;
itemTextView.setText(data.get(position).text);
//-----add
itemTextView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(onItemClickListener!=null){
onItemClickListener.OnItemClick(position);
}
}
});
//------
break;
}
}
use like
ExpandableListAdapter adapter = new ExpandableListAdapter(data);
recyclerview.setAdapter(adapter);
adapter.setOnItemClickListener(new ExpandableListAdapter.OnItemClickListener() {
#Override
public void OnItemClick(int position) {
Toast.makeText(MainActivity.this, data.get(position).text,Toast.LENGTH_SHORT).show();
}
});
just go to onBindChildViewHolder in GenreAdapter and add this :
holder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(mactive,artist.getName(),Toast.LENGTH_SHORT).show();
}
});
by the way mactive is the activity passed in by constractor
I have an issue while loading data in adapter view of recycle view.
I have two Fragment in activity and 2nd Fragment have 3 recycle views. But the problem is that I have a checkbox in raw view holder, I checked some one of that. when i scroll up /down then that data of recycleview data rearrange as default and all check boxes are again false.
I used set recycle(false) in on bind method but still not working.
public class VenueOrderPriceAdapter extends
RecyclerView.Adapter<VenueOrderPriceAdapter.DataViewHolder> {
static Context mContext;
public static double final_total;
public static String selected_hr,selected_min;
static private List<VenueOrderPriceModel> stList;
static private String str_id, str_charges, str_is_flat_charges, str_is_per_person_charges;
/*str_hour_extension_charges, str_extra_person_charges=null, str_is_group_size, str_group_size_from,
str_group_size_to*/;
private static boolean isPkgAdded;
public VenueOrderPriceAdapter(Context mContext, List<VenueOrderPriceModel> students) {
this.mContext = mContext;
this.stList = students;
}
// Create new views
#Override
public DataViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
// create a new view
View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_venueorder_price, parent,false);
Log.e("on create called---","dsdf--111");
// create ViewHolder
DataViewHolder viewHolder = new DataViewHolder(itemLayoutView);
final_total=0;
return viewHolder;
}
#Override
public void onBindViewHolder(final DataViewHolder viewHolder, final int positiona) {
Log.e("on bind called---","dsdf"+positiona);
viewHolder.setIsRecyclable(false);
}
// Return the size arraylist
#Override
public int getItemCount() {
return stList.size();
}
public static class DataViewHolder extends RecyclerView.ViewHolder {
public TextView tvName,tv_details,tv_duration ,tv_guestCount,tv_price,tv_extra_charge,tv_addtocart,tv_pkg_rate;
CheckBox cb_selectedprice;
private LinearLayout ll_extra,ll_extra_charge;
Spinner sp_hh,sp_mm,sp_qty;
ImageView img_clock,img_guest,img_remove;
public DataViewHolder(View itemLayoutView) {
super(itemLayoutView);
tvName = (TextView) itemLayoutView.findViewById(R.id.tvName);
tv_details = (TextView) itemLayoutView.findViewById(R.id.tv_details);
tv_duration = (TextView) itemLayoutView.findViewById(R.id.tv_duration);
tv_guestCount = (TextView) itemLayoutView.findViewById(R.id.tv_guestCount);
tv_price = (TextView) itemLayoutView.findViewById(R.id.tv_price);
tv_extra_charge = (TextView)itemLayoutView.findViewById(R.id.tv_extra_charge);
tv_pkg_rate = (TextView)itemLayoutView.findViewById(R.id.tv_pkg_rate);
img_clock = (ImageView) itemLayoutView.findViewById(R.id.img_clock);
img_guest = (ImageView) itemLayoutView.findViewById(R.id.img_guest);
img_remove = (ImageView) itemLayoutView.findViewById(R.id.img_remove);
sp_hh = (Spinner)itemView.findViewById(R.id.sp_hh);
sp_mm = (Spinner)itemView.findViewById(R.id.sp_mm);
sp_qty = (Spinner)itemView.findViewById(R.id.sp_qty);
// tv_ext_person= (TextView)itemView.findViewById(R.id.tv_ext_person);
ll_extra =(LinearLayout)itemView.findViewById(R.id.ll_extra);
ll_extra_charge =(LinearLayout)itemView.findViewById(R.id.ll_extra_charge);
tv_addtocart= (TextView) itemView.findViewById(R.id.tv_addtocart);
cb_selectedprice =(CheckBox)itemView.findViewById(R.id.cb_selectedprice);
final int position = getAdapterPosition();
String extra_duration_charge = "";
str_id= stList.get(position).getId();
if(stList.get(position).getIs_applicable().equalsIgnoreCase("0")){
itemView.setEnabled(false);
itemView.setClickable(false);
itemView.setBackgroundResource(R.color.md_blue_grey_50);
tv_addtocart.setVisibility(View.GONE);
}
tvName.setText(stList.get(position).getPackage_name());
tv_details.setText(stList.get(position).getChrages_inclusion());
tv_price.setText(" $ "+Const.GLOBAL_FORMATTER.format(Double.parseDouble(stList.get(position).getCharges())));
if(stList.get(position).getPacakage_hours()!=null){
tv_duration.setText(stList.get(position).getPacakage_hours().substring(0,stList.get(position).getPacakage_hours().length()-3)+" hr");
}else{
tv_duration.setVisibility(View.GONE);
}
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1")){
tv_guestCount.setText(stList.get(position).getGroup_size_from()
+"-"
+stList.get(position).getGroup_size_to() +" Guest");
}else{
tv_guestCount.setVisibility(View.GONE);
}
//======EXTRA GUEST AND TIME CONDITION FOR TEXT VIEW ==========================================
if(stList.get(position).getIs_hour_extension_charges()!=null) {
if(stList.get(position).getIs_hour_extension_charges().equalsIgnoreCase("1")){
ll_extra_charge.setVisibility(View.VISIBLE);
if (stList.get(position).getExtension_hours().substring(0, 2).equalsIgnoreCase("00")) {
extra_duration_charge = "$ " + stList.get(position).getHour_extension_charges() + " / " + stList.get(position).getExtension_hours().substring(3, 5) + " min";
} else {
extra_duration_charge = "$ " + stList.get(position).getHour_extension_charges() + " / " + stList.get(position).getExtension_hours().substring(0, 5) + " hours";
}
tv_extra_charge.setText(extra_duration_charge);
}
}
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1") && stList.get(position).getIs_extra_person_charges().equalsIgnoreCase("1")){
extra_duration_charge = extra_duration_charge+"\n"+"$"+stList.get(position).getIs_extra_person_charges()+"/ person";
tv_extra_charge.setText(extra_duration_charge);
}
if(extra_duration_charge==null || extra_duration_charge.length()<1){
ll_extra_charge.setVisibility(View.GONE);
if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Flat Rate");
} else if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Per Person");
} else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")) {
tv_pkg_rate.setText("Per Hour");
}
}else{
if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Flat Rate");
} else if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
tv_pkg_rate.setText("Per Person");
} else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")) {
tv_pkg_rate.setText("Per Hour");
}
}
//==========FLAT PER PERSON PER HOURE CHARGES CONDITION======================================================
if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
ll_extra.setVisibility(View.INVISIBLE);
// tv_ext_person.setVisibility(View.GONE);
} else if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1") && stList.get(position).getExtra_person_charges()!=null){
ll_extra.setVisibility(View.VISIBLE);
img_clock.setVisibility(View.GONE);
sp_hh.setVisibility(View.GONE);
//np_itemcount.setVisibility(View.VISIBLE);
// tv_ext_person.setVisibility(View.VISIBLE);
//np_itemcount.setMaxValue(Integer.parseInt(stList.get(position).getGroup_size_to()));
}else{
ll_extra.setVisibility(View.INVISIBLE);
//tv_ext_person.setVisibility(View.GONE);
}
if(stList.get(position).getIs_extra_person_charges().equalsIgnoreCase("0")){
ll_extra.setVisibility(View.INVISIBLE);
//tv_ext_person.setVisibility(View.GONE);
}
}else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")) {
ll_extra.setVisibility(View.VISIBLE);
img_guest.setVisibility(View.GONE);
sp_qty.setVisibility(View.GONE);
//ll_duration.setVisibility(View.GONE);
}
List<String> list_hh = new ArrayList<String>();
list_hh.add("HH");
list_hh.add("01");
list_hh.add("02");
list_hh.add("03");
list_hh.add("04");
list_hh.add("05");
list_hh.add("06");
list_hh.add("07");
list_hh.add("08");
list_hh.add("09");
list_hh.add("10");
list_hh.add("11");
list_hh.add("12");
ArrayAdapter<String> dataAdapter_hh = new ArrayAdapter<String>(mContext,android.R.layout.simple_spinner_item, list_hh);
dataAdapter_hh.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp_hh.setAdapter(dataAdapter_hh);
List<String> list_mm = new ArrayList<String>();
list_mm.add("MM");
list_mm.add("00");
list_mm.add("15");
list_mm.add("30");
list_mm.add("45");
ArrayAdapter<String> dataAdapter_mm = new ArrayAdapter<String>(mContext,android.R.layout.simple_spinner_item, list_mm);
dataAdapter_mm.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp_mm.setAdapter(dataAdapter_mm);
List<String> list_qty = new ArrayList<String>();
list_qty.add("Guest");
for(int a=0;a<100;a++){
list_qty.add(Integer.toString(a));
}
ArrayAdapter<String> dataAdapter_qty = new ArrayAdapter<String>(mContext,android.R.layout.simple_spinner_item, list_qty);
dataAdapter_qty.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp_qty.setAdapter(dataAdapter_qty);
sp_hh.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int positionSP, long id) {
if(sp_mm.getSelectedItemPosition()>1 && positionSP>1){
final_total = Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) * (double) (sp_hh.getSelectedItemPosition() +1) );
}else{
if(positionSP > 1) {
final_total = Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) * (double) (sp_hh.getSelectedItemPosition()));
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
}
}
/* Toast.makeText(parent.getContext(), "Time : " +
sp_hh.getItemAtPosition(sp_hh.getSelectedItemPosition()).toString()
+ ":"
+String.valueOf(sp_mm.getSelectedItem()), Toast.LENGTH_SHORT).show();*/
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
sp_mm.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int positionSP, long id) {
if(positionSP>1){
final_total = Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) *(double) (sp_hh.getSelectedItemPosition() + 1 ));
// tv_menutitle_venuepricing.setText("Pricing Plans "+" ( Total : "+final_total+" )");
}else{
if(sp_hh.getSelectedItemPosition()>0){
final_total =Double.parseDouble(stList.get(position).getCharges())+(Double.parseDouble(stList.get(position).getCharges()) * (double) (sp_hh.getSelectedItemPosition()));
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
}
}
/*Toast.makeText(parent.getContext(), "Time : " + sp_hh.getItemAtPosition(sp_hh.getSelectedItemPosition()).toString()
+ ":" +sp_mm.getItemAtPosition(sp_mm.getSelectedItemPosition()).toString(), Toast.LENGTH_SHORT).show();*/
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
/*chkSelected.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(chkSelected.isChecked()==true){
checked_count=checked_count+1;
if(checked_count > 1){
chkSelected.setChecked(false);
checked_count=checked_count-1;
Log.d("chk count ",""+checked_count);
}else {
Log.d("chk count",""+checked_count);
if(stList.get(position).getIs_perperson_charges().equalsIgnoreCase("1")){
final_total = Double.parseDouble(stList.get(position).getCharges()) * Double.parseDouble(et_guestCount.getText().toString());
// tv_menutitle_venuepricing.setText("Pricing Plans "+" ( Total : "+final_total+" )");
}else if(stList.get(position).getIs_perhour_charges().equalsIgnoreCase("1")){
if(np_minutes_venue_pkg.getValue()>0){
final_total = Double.parseDouble(stList.get(position).getCharges()) * (double)(np_hour_venue_pkg.getValue()+1);
// tv_menutitle_venuepricing.setText("Pricing Plans "+" ( Total : "+final_total+" )");
}else{
if(np_hour_venue_pkg.getValue()>0) {
final_total = Double.parseDouble(stList.get(position).getCharges()) * (double) (np_hour_venue_pkg.getValue());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
//tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}
}
selected_hr= Integer.toString(np_hour_venue_pkg.getValue());
if(selected_hr.length()<=1){
selected_hr="0"+selected_hr;
}
selected_min=Integer.toString(np_minutes_venue_pkg.getValue());
if(selected_min.length()<=1){
selected_min="0"+selected_min;
}
}else if(stList.get(position).getIs_flat_charges().equalsIgnoreCase("1")){
if(stList.get(position).getIs_group_charges().equalsIgnoreCase("1") && stList.get(position).getIs_extra_person_charges().equalsIgnoreCase("1") ){
int guest_from =Integer.parseInt(stList.get(position).getGroup_size_from());
int guest_to =Integer.parseInt(stList.get(position).getGroup_size_to());
int guest =Integer.parseInt(et_guestCount.getText().toString());
if(guest>guest_to){
int extra_guest = guest-guest_to;
final_total = ((double)extra_guest * Double.parseDouble(stList.get(position).getExtra_person_charges()) )
+Double.parseDouble(stList.get(position).getCharges());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : " + Const.GLOBAL_FORMATTER.format(final_total) + " )");
}else{
final_total = Double.parseDouble(stList.get(position).getCharges());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}
}else {
final_total = Double.parseDouble(stList.get(position).getCharges());
// tv_menutitle_venuepricing.setText("Pricing Plans " + " ( Total : "+ Const.GLOBAL_FORMATTER.format(final_total) + " )");
}
}
}
}else{
checked_count=checked_count-1;
Log.d("chk count",""+checked_count);
if(checked_count==0){
// tv_menutitle_venuepricing.setText("Pricing Plans ");
}
}
VenueOrderPriceModel contact = (VenueOrderPriceModel) chkSelected.getTag();
contact.setSelected(chkSelected.isChecked());
stList.get(getAdapterPosition()).setSelected(chkSelected.isChecked());
*//*Toast.makeText(
chkSelected.getContext(),
"Clicked on Checkbox: " + chkSelected.getText() + " is "
+ chkSelected.isChecked(), Toast.LENGTH_LONG).show();*//*
}
});*/
if (cb_selectedprice.isChecked()==true){
img_remove.setVisibility(View.VISIBLE);
}else{
img_remove.setVisibility(View.GONE);
}
img_remove.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
isPkgAdded=false;
cb_selectedprice.setChecked(false);
img_remove.setVisibility(View.GONE);
tv_addtocart.setBackground(mContext.getResources().getDrawable(R.drawable.rounded_corner_orange_white_borde,mContext.getTheme()));
tv_addtocart.setEnabled(true);
final_total=0;
}
});
tv_addtocart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (isPkgAdded == true || cb_selectedprice.isChecked()==true) {
Toast.makeText(mContext, "First Remove Added Pacakge", Toast.LENGTH_LONG).show();
} else {
Log.e("boooking details --",str_dateselected+str_guest_count+str_timeslot);
}
}
});
}
}
// method to access in activity after updating selection
public List<VenueOrderPriceModel> getStudentist() {
return stList;
}
}
You have to maintain the state of each checkbox in you data model from onCheckChangeListener of checkbox wrt every positions.
Then you have to set the checkbox state in onBind method of adapter
The recycler view recycles the view in OnBindViewHolder. So when items are scrolled view is recycled again.To solve this.
create a global variable to store the clicked position.
private mItemSelected=-1;
Then inside viewholder add the clickListener and onClick store the position of the clicked item.
public class ViewHolder extends RecyclerView.ViewHolder {
public ViewHolder(View v) {
super(v);
v.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mItemSelected = getAdapterPosition();
notifyDataSetChanged();
}
});
}
}
And in inside OnBindViewHolder,
#Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
if(mItemSelected==position){
holder.status.setChecked(true);
}else{
holder.status.setChecked(false);
}
}
This is my activity where it contains listView and an action bar icon.
Everytime the app run, it will go through this method to load the SQLite data to listView.
public void retrieveList(String name) {
database = mdb.getReadableDatabase();
Cursor cursor = database.rawQuery("SELECT * FROM " + MyDatabaseHelper.TABLE__TASK + " WHERE Name = ? ", new String[]{name}, null);
if (cursor != null && cursor.getCount() > 0) {
while (cursor.moveToNext()) {
int iD = cursor.getInt(cursor.getColumnIndex("ID"));
String month = cursor.getString(cursor.getColumnIndex("Month"));
double budget = cursor.getDouble(cursor.getColumnIndex("Budget"));
double totalUsed = cursor.getDouble(cursor.getColumnIndex("Total_Used"));
if (adapter != null) {
adapter.add(iD, month, budget, totalUsed);
listview.setAdapter(adapter);
}
}
}
}
The action bar icon (pen) will open a new dialog. Once the save button clicked, it will add new item to listView.
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_add_task:
mClickedPosition = -1;
final AlertDialog.Builder builder = new AlertDialog.Builder(AddMonthlyExpenses.this);
View promptView = getLayoutInflater().inflate(R.layout.dialog_in_addmonthlyexpenses, null);
save = (Button) promptView.findViewById(R.id.okBtn);
month = (EditText) promptView.findViewById(R.id.month);
budget = (EditText) promptView.findViewById(R.id.budget);
alert = builder.create();
alert.setTitle("Add Month ");
alert.setView(promptView);
alert.show();
month.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
showDialog(DATE_DIALOG_ID);
}
});
save.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String month1 = month.getText().toString();
double budget1 = Double.parseDouble(budget.getText().toString());
if ((month1.trim().equals("")) || (String.valueOf(budget1).trim().equals(""))) {
Toast.makeText(getApplicationContext(), " Not Completed", Toast.LENGTH_SHORT).show();
} else {
adapter.add(id,month1, budget1);
Toast.makeText(getApplication(),id+"",Toast.LENGTH_SHORT).show(); // display 0
insert(name, month1, budget1);
listview.setAdapter(adapter);
alert.dismiss();
//retrieveList(String name)
}
}
}
});
break;
ExpensesAdapter
public class ExpensesAdapter extends BaseAdapter {
private static ArrayList<List> search;
private LayoutInflater mInflater;
ListView listview;
Context context;
double used = 0;
public ExpensesAdapter(Context context, ArrayList<List> searchList, ListView listview) {
this.search=searchList;
this.listview=listview;
mInflater = LayoutInflater.from(context);
this.context= context;
}
public int getCount() {
return search.size();
}
public List getItem(int position) {
return search.get(position);
}
public long getItemId(int position) {
return 0;
}
public void removeItem(int position) {
search.remove(position);
this.notifyDataSetChanged();
}
public void add(int id,String month,double budget,double used)
{
List obj = new List(id,month,budget,used);
this.used=used;
obj.setID(id);
obj.setMonthYear(" " + month);
obj.setBudget(budget);
obj.setUsed(used);
search.add(obj);
this. notifyDataSetChanged();
}
public void add(int id,String month, double budget)
{
List obj = new List(id,month,budget);
obj.setMonthYear(" " + month);
obj.setID(id);
obj.setBudget(budget);
search.add(obj);
this. notifyDataSetChanged();
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder =null;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.expenses_adapter, null);
holder= new ViewHolder();
holder.monthAndYear = (TextView) convertView.findViewById(R.id.monthAndYear);
holder.budget = (TextView) convertView.findViewById(R.id.budget);
holder.amount=(TextView)convertView.findViewById(R.id.amount);
holder.progressBar=(ProgressBar)convertView.findViewById(R.id.downloadProgressBar);
holder.balance=(TextView)convertView.findViewById(R.id.balance);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.monthAndYear.setText(search.get(position).getMonthAndYear());
holder.budget.setText("RM" + "" + search.get(position).getBudget());
holder.amount.setText("RM" + "" + search.get(position).getUsed());
holder.progressBar.setProgress((int) search.get(position).getUsed());
holder.progressBar.setMax((int) search.get(position).getBudget());
double a = search.get(position).getBudget();
double b = search.get(position).getUsed();
holder.balance.setText("RM"+""+String.format("%.2f", a-b));
return convertView;
}
static class ViewHolder {
TextView monthAndYear, budget,amount,balance;
ProgressBar progressBar;
}
}
Once the new item is added in listView and I press it, I get id= 0. If I exit the app and click again then only it shows the new id. Is there a way I can make new id assign to new list item instead of exit the app or call the retrieveList method after alert.dismiss(); ?
In your adapter your not setting the id to the obj
public void add(int id,String month,double budget,double used)
{
List obj = new List(id,month,budget,used);
this.used=used;
obj.setMonthYear(" " + month);
obj.setBudget(budget);
obj.setUsed(used);
//Add this line your adapter
obj.setID(id);
search.add(obj);
this. notifyDataSetChanged();
}
public void add(int id,String month, double budget)
{
List obj = new List(id,month,budget);
obj.setMonthYear(" " + month);
obj.setBudget(budget);
//Add this line your adapter
obj.setID(id);
search.add(obj);
this. notifyDataSetChanged();
}
Your getItemId() always returns 0. To match your getItem() try returning something like:
public long getItemId(int position) {
List l = getItem(positon);
return l.getId();
}
Then of course your List must have a getId() which returns a long.
I solved by using this method
change insert(name, month1, budget1); to long id= insert(name, month1, budget1); to get the latest id. Then modify code to this
save.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String month1 = month.getText().toString();
double budget1 = Double.parseDouble(budget.getText().toString());
if ((month1.trim().equals("")) || (String.valueOf(budget1).trim().equals(""))) {
Toast.makeText(getApplicationContext(), " Not Completed", Toast.LENGTH_SHORT).show();
} else {
long id=insert(name, month1, budget1);
adapter.add(id,month1, budget1);
listview.setAdapter(adapter);
alert.dismiss();
check();
}
}
}
});
I am working on custom adapter. I created separate class for it which extends BaseAdapter. I am having two images - (minus) and + (plus) which will decrease or increase quantity of product in list view.
List item looks like
[ - Product qty + ]
Now I already implemented listener for - (minus) image and it is working. But listener for + (plus) image is not working. I printed qty on the console it is incrementing but not getting updated in listview.
Here is the code
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.list_row_sold_item, null);
TextView txtListItem = (TextView) vi.findViewById(R.id.txtListItem);
txtQuantity = (TextView) vi.findViewById(R.id.txtQuantity);
ImageView imgCancel = (ImageView) vi.findViewById(R.id.imgCancel);
ImageView imgPlus = (ImageView) vi.findViewById(R.id.imgPlus);
HashMap<String, String> mapData = new HashMap<String, String>();
mapData = data.get(position);
txtListItem.setText(mapData.get("product"));
txtQuantity.setText(mapData.get("qty"));
imgCancel.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
doButtonOneClickActions(position);
}
});
imgPlus.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
qtyClickAction(position);
}
});
return vi;
}
private void qtyClickAction(int rowNumber) {
System.out.println(rowNumber);
int qty = Integer.parseInt(txtQuantity.getText().toString().trim());
System.out.println("before : " + qty);
qty++;
txtQuantity.setText("" + qty);
System.out.println("after : " + qty);
notifyDataSetChanged();
}
private void doButtonOneClickActions(int rowNumber) {
// Do the actions for Button one in row rowNumber (starts at zero)
System.out.println("rowNumber : " + rowNumber);
int qty = Integer.parseInt(txtQuantity.getText().toString().trim());
if (qty == 1) {
data.remove(rowNumber);
} else {
txtQuantity.setText("" + --qty);
}
notifyDataSetChanged();
}
One more thing, if I delete item in list, it is getting deleted. But how can I get notification for deleted item in my main class. Consider I selected 3 items, now I removed any one item by clicking - (minus). The item is getting deleted from list - the code is in adapter class
notifyDataSetChanged();
But how can I update total amount which is getting calculated in main class
try this it may help you,
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.list_row_sold_item, null);
TextView txtListItem = (TextView) vi.findViewById(R.id.txtListItem);
TextView txtQuantity = (TextView) vi.findViewById(R.id.txtQuantity);
ImageView imgCancel = (ImageView) vi.findViewById(R.id.imgCancel);
ImageView imgPlus = (ImageView) vi.findViewById(R.id.imgPlus);
HashMap<String, String> mapData = new HashMap<String, String>();
mapData = data.get(position);
txtListItem.setText(mapData.get("product"));
txtQuantity.setText(mapData.get("qty"));
imgCancel.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
doButtonOneClickActions(txtQuantity,position);
}
});
imgPlus.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
qtyClickAction(txtQuantity,position);
}
});
return vi;
}
private void qtyClickAction(TextView txtQuantity,int rowNumber) {
System.out.println(rowNumber);
int qty = Integer.parseInt(txtQuantity.getText().toString().trim());
System.out.println("before : " + qty);
qty++;
txtQuantity.setText("" + qty);
System.out.println("after : " + qty);
}
private void doButtonOneClickActions(TextView txtQuantity,int rowNumber) {
// Do the actions for Button one in row rowNumber (starts at zero)
System.out.println("rowNumber : " + rowNumber);
int qty = Integer.parseInt(txtQuantity.getText().toString().trim());
if (qty == 1) {
data.remove(rowNumber);
notifyDataSetChanged();
} else {
txtQuantity.setText("" + --qty);
}
}
try this:
private void qtyClickAction(TextView txtQuantity,int rowNumber) {
System.out.println(rowNumber);
int qty = Integer.parseInt(txtQuantity.getText().toString().trim());
System.out.println("before : " + qty);
qty++;
data.get(rowNumber).set("qty")=qty;
//txtQuantity.setText("" + qty); not needed anymore
System.out.println("after : " + qty);
notifyDataSetChanged();
}
indeed you have not updated the data model so notifyDataSetChanged(); dose not take effect.
In order to send back updated data:
imgCancel.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
doButtonOneClickActions(position);
// update totalAmount
txtAmountAdapter.setText(Integer.valueOf(totalAmount).toString()));
}
});
imgPlus.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
qtyClickAction(position);
// update totalQty
txtAmountAdapter.setText(Integer.valueOf(totalAmount).toString()));
}
});
and pass txtAmount to the constructor of your adapter and store it as txtAmountAdapter. now every update in total amount update txtAmount in main.
i want the same as this link https://www.gorecess.com/ first spinner . multi selection spinner in android with checkbox .Show the spinner in dropdown. anyone know answer...
multi select spinner :
1- create a spinner in your own xml ,like this
<Spinner
android:id="#+id/mySpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginTop="1dp"/>
2-create a custom dapter for spinner like this :
public class AdapterTagSpinnerItem extends ArrayAdapter<TagListSimpleSearch>
{
private LayoutInflater mInflater;
private List<TagListSimpleSearch> listState;
public Spinner mySpinner = null;
public AdapterTagSpinnerItem(Context context, int resource, List<TagListSimpleSearch> objects, Spinner mySpinner)
{
super(context, resource, objects);
this.listState = objects;
this.mySpinner = mySpinner;
mInflater = LayoutInflater.from(context);
}
#Override
public View getDropDownView(int position, View convertView, ViewGroup parent)
{
return getCustomView(position, convertView, parent);
}
#Override
public View getView(int position, View convertView, ViewGroup parent)
{
return getCustomView(position, convertView, parent);
}
public View getCustomView(final int position, View convertView, ViewGroup parent)
{
String text = "";
final ViewHolder holder;
if (convertView == null)
{
holder = new ViewHolder();
mInflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.spinner_item, null, false);
holder.mTextView = convertView.findViewById(R.id.tvSpinnerItem);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
/**
* check position , if position is zero we put space on top of list of spinner
*/
if ((position == 0))
text = oneSpace;
/**
* check position , if position is one we put cross mark before text to show that position used to be for clear all selected items on spinner
*/
else if ((position == 1))
text = " " + String.valueOf((char) crossMarkAroundBox) + " " + listState.get(position).getTagText();
/**
* check position , if position is two we put check mark before text to show that position used to be for select all items on spinner
*/
else if ((position == 2))
text = " " + String.valueOf((char) tikMarkAroundBox) + " " + listState.get(position).getTagText();
/**
* check position , if position is bigger than two we have to check that position is selected before or not and put check mark or dash before text
*/
else
{
if (listState.get(position).isSelected())
{
text = " " + String.valueOf((char) tikMark) + " " + listState.get(position).getTagText();
}
else
{
text = " " + String.valueOf(dash) + " " + listState.get(position).getTagText();
}
}
holder.mTextView.setText(text);
holder.mTextView.setTag(position);
holder.mTextView.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
/**
* if you want open spinner after click on text for first time we have to open spinner programmatically
*/
mySpinner.performClick();
int getPosition = (Integer) v.getTag();
listState.get(getPosition).setSelected(!listState.get(getPosition).isSelected());
notifyDataSetChanged();
/**
* if clicked position is one
* that means you want clear all select item in list
*/
if (getPosition == 1)
{
clearList();
}
/**
* if clicked position is two
* that means you want select all item in list
*/
else if (getPosition == 2)
{
fillList();
}
}
});
return convertView;
}
/**
* clear all items in list
*/
public void clearList()
{
for (TagListSimpleSearch items : listState)
{
items.setSelected(false);
}
notifyDataSetChanged();
}
/**
* select all items in list
*/
public void fillList()
{
for (TagListSimpleSearch items : listState)
{
items.setSelected(true);
}
notifyDataSetChanged();
}
/**
* view holder
*/
private class ViewHolder
{
private TextView mTextView;
}
}
3- now you have to create object for adapter
public class TagListSimpleSearch {
private String TagId;
private String TagText;
private boolean selected;
public String getTagId() {
return TagId;
}
public void setTagId(String TagId) {
this.TagId = TagId;
}
public String getTagText() {
return TagText;
}
public void setTagText(String tagText) {
TagText = tagText;
}
public boolean isSelected()
{
return selected;
}
public void setSelected(boolean selected)
{
this.selected = selected;
}
}
4-fill spinner adapter in your activity
public static String oneSpace =" ";
public static int tikMark =0X2714;
public static int crossMark =0X2715;
public static int tikMarkAroundBox =0X2611;
public static int crossMarkAroundBox =0X274E;
public static String dash ="-";
private Spinner mySpinner;
mySpinner= (Spinner) findViewById(R.id.mySpinner);
List<TagListSimpleSearch> tagsNames = new ArrayList<>();
TagListSimpleSearch tagSpecific=new TagListSimpleSearch();
tagSpecific.setTagId("0");
tagSpecific.setTagText(oneSpace);
tagsNames.add(tagSpecific);
tagSpecific=new TagListSimpleSearch();
tagSpecific.setTagId("1");
tagSpecific.setTagText("select All Items");
tagsNames.add(tagSpecific);
tagSpecific=new TagListSimpleSearch();
tagSpecific.setTagId("2");
tagSpecific.setTagText("remove All Items");
tagsNames.add(tagSpecific);
tagSpecific=new TagListSimpleSearch();
tagSpecific.setTagId("0");
tagSpecific.setTagText("Item 0");
tagsNames.add(tagSpecific);
tagSpecific=new TagListSimpleSearch();
tagSpecific.setTagId("1");
tagSpecific.setTagText("Item 1");
tagsNames.add(tagSpecific);
tagSpecific=new TagListSimpleSearch();
tagSpecific.setTagId("2");
tagSpecific.setTagText("Item 2");
tagsNames.add(tagSpecific);
tagSpecific=new TagListSimpleSearch();
tagSpecific.setTagId("3");
tagSpecific.setTagText("Item 3");
tagsNames.add(tagSpecific);
final AdapterTagSpinnerItem adapterTagSpinnerItem = new AdapterTagSpinnerItem(this, 0, tagsNames,mySpinner);
mySpinner.setAdapter(adapterTagSpinnerItem);
<com.extra.MultiSelectionSpinner
android:id="#+id/input1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="2dp" />
MultiSelectionSpinner spinner=(MultiSelectionSpinner)findViewById(R.id.input1);
List<String> list = new ArrayList<String>();
list.add("List1");
list.add("List2");
spinner.setItems(list);
I have implemented a multiple selection spinner in android using AlertDialog
check the following code
public void classesSelect(){
regclassvalue.setText("");
AlertDialog.Builder builder = new AlertDialog.Builder(RegisterActivity.this);
builder.setTitle("Select Services");
final int array[] = new int[serarray.length];
check = new boolean[serarray.length];
for (int k = 0; k < serarray.length; k++) {
check[k] = false;
}
final List<String> classlist = Arrays.asList(serarray);
final List<Integer> classidlist = Arrays.asList(classidarray);
// this is the main part here we set the multichoice listener using serarray and check
builder.setMultiChoiceItems(serarray, check, new DialogInterface.OnMultiChoiceClickListener() {
#Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
check[which] = isChecked;
}
});
builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
regclassvalue.setText("");
classids = "";
int io = 0;
for (int ii = 0; ii < check.length; ii++) {
boolean checked = check[ii];
if (checked) {
array[io] = ii;
io++;
}
}
for (int k = 0; k < io; k++) {
if (io == 1) {
classids = classids + classidlist.get(array[k]);
regclassvalue.setText(regclassvalue.getText() + classlist.get(array[k]));
} else if (k == io - 1) {
classids = classids + classidlist.get(array[k]);
regclassvalue.setText(regclassvalue.getText() + classlist.get(array[k]));
} else {
classids = classids + classidlist.get(array[k]) + ",";
regclassvalue.setText(regclassvalue.getText() + classlist.get(array[k]) + " ,");
}
}
//Toast.makeText(RegisterActivity.this,classids,Toast.LENGTH_LONG).show();
}
});
builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
for more info please click here