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Ich benutze recyclerview with footer alles funktioniert gut. aber ich kann den letzten Eintrag nicht löschen. Nehmen wir an, wir haben jetzt 2 Produkte in der Liste, wenn der Benutzer ein Produkt entfernt und dann ein Produkt in recyclerview bleibt, dann kann ich das verbleibende Produkt nicht löschen.Recyclerview mit Fußzeile nicht in der Lage, letzten Artikel zu löschen
Während ich einen Artikel haben, es zeigt ID PACK null
genericViewHolder.removes.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
packid=currentItem.getCart_Product_packid();
System.out.println("PACK ID"+packid);
deletetocart();
}
});
ADAPTER
public class HeaderFooterAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;
private static final int TYPE_FOOTER = 2;
private ArrayList<CartModel> idlistData;
private AQuery aQuery;
Context context;
public HeaderFooterAdapter(Context context,ArrayList<CartModel> idlistData) {
this.context = context;
this.idlistData = idlistData;
aQuery = new AQuery(this.context);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder (ViewGroup parent, int viewType) {
if(viewType == TYPE_HEADER) {
View v = LayoutInflater.from (parent.getContext()).inflate (R.layout.item_header, parent, false);
return new HeaderViewHolder (v);
} else if(viewType == TYPE_FOOTER) {
View v = LayoutInflater.from (parent.getContext()).inflate (R.layout.item_footer, parent, false);
return new FooterViewHolder (v);
} else if(viewType == TYPE_ITEM) {
View v = LayoutInflater.from (parent.getContext()).inflate (R.layout.listitem_buynow, parent, false);
return new GenericViewHolder (v);
}
return null;
}
private CartModel getItem (int position) {
return idlistData.get (position);
}
@Override
public void onBindViewHolder (RecyclerView.ViewHolder holder, int position) {
if(holder instanceof HeaderViewHolder) {
HeaderViewHolder headerHolder = (HeaderViewHolder) holder;
headerHolder.txtTitleHeader.setText ("Header");
headerHolder.txtTitleHeader.setOnClickListener (new View.OnClickListener() {
@Override
public void onClick (View view) {
// Toast.makeText (context, "Clicked Header", Toast.LENGTH_SHORT).show();
}
});
} else if(holder instanceof FooterViewHolder) {
FooterViewHolder footerHolder = (FooterViewHolder) holder;
footerHolder.txtTitleFooter.setText ("Footer");
footerHolder.FooterCheckout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Toast.makeText(context, "Clicked Footer", Toast.LENGTH_SHORT).show();
if(userd > 0)
{
System.out.println("Positive");
Intent intent=new Intent(BuyNowActivity.this,DelieveringProduct.class);
startActivity(intent);
}
else
{
System.out.println("Negative");
String skipsid=String.valueOf(userd);
Intent intent=new Intent(BuyNowActivity.this,Login_Page.class);
intent.putExtra("proceedtocheckoutid",skipsid);
intent.putExtra("isCheckOut",true);
startActivity(intent);
}
}
});
} else if(holder instanceof GenericViewHolder) {
final CartModel currentItem = getItem (position - 1);
final GenericViewHolder genericViewHolder = (GenericViewHolder) holder;
genericViewHolder.txtName.setText(currentItem.getCart_Product_Name());
String pics = currentItem.getCart_Product_Img();
aQuery.id(genericViewHolder.proimage).image(pics, true, true, 0, R.mipmap.ic_launcher);
genericViewHolder.buynowprice.setText("$" + currentItem.getCart_Product_Price());
genericViewHolder.buynowqtys.setText(currentItem.getCart_Product_Qty());
genericViewHolder.discounttext.setText(currentItem.getCart_Product_packDiscount());
subtotal.setText("$" + currentItem.getCart_Product_Price());
genericViewHolder.edtcoupan.setText(currentItem.getCart_Product_coupancode());
genericViewHolder.gocoupan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(genericViewHolder.edtcoupan.getText().toString().trim().length() > 0)
{
couponcode=genericViewHolder.edtcoupan.getText().toString();
packid=currentItem.getCart_Product_packid();
System.out.println("Coupan Code on click"+couponcode);
goforcoupan();
}
}
});
genericViewHolder.removes.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
packid=currentItem.getCart_Product_packid();
System.out.println("PACK ID"+packid);
deletetocart();
}
});
}
@Override
public int getItemViewType (int position) {
if (isPositionHeader (position)) {
return TYPE_HEADER;
} else if(isPositionFooter (position)) {
return TYPE_FOOTER;
}
return TYPE_ITEM;
}
private boolean isPositionHeader (int position) {
return position == 0;
}
private boolean isPositionFooter (int position) {
return position == idlistData.size() + 1;
}
@Override
public int getItemCount() {
return idlistData.size() + 2;
}
class FooterViewHolder extends RecyclerView.ViewHolder {
Button FooterCheckout;
TextView txtTitleFooter;
public FooterViewHolder (View itemView) {
super (itemView);
this.txtTitleFooter = (TextView) itemView.findViewById (R.id.txtFooter);
this.FooterCheckout = (Button) itemView.findViewById (R.id.footercheckout);
}
}
class HeaderViewHolder extends RecyclerView.ViewHolder {
TextView txtTitleHeader;
public HeaderViewHolder (View itemView) {
super (itemView);
this.txtTitleHeader = (TextView) itemView.findViewById (R.id.txtHeader);
}
}
class GenericViewHolder extends RecyclerView.ViewHolder {
TextView discounttext;
LinearLayout lindiscount;
EditText edtcoupan;
TextView txtName,buynowprice,buynowqtys,buynowfreq,gocoupan,removes,firsttxt,thirdtxt;
public ImageView proimage;
public RelativeLayout linfreq,linqty;
public GenericViewHolder (View itemView) {
super (itemView);
this.txtName = (TextView) itemView.findViewById (R.id.listitem_buynow_title);
this.proimage = (ImageView)itemView.findViewById(R.id.listitem_buynow_image);
this.buynowprice = (TextView)itemView.findViewById(R.id.listitem_buynow_price);
this.buynowqtys = (TextView)itemView.findViewById(R.id.listitem_buynow_qtys);
this.buynowfreq = (TextView)itemView.findViewById(R.id.listitem_buynow_freq);
this.gocoupan = (TextView)itemView.findViewById(R.id.listitem_buynow_gocoupan);
this.edtcoupan = (EditText)itemView.findViewById(R.id.listitem_buynow_coupan);
this.removes = (TextView)itemView.findViewById(R.id.listitem_buynow_remove);
this.linfreq = (RelativeLayout)itemView.findViewById(R.id.linfreq);
this.linqty = (RelativeLayout)itemView.findViewById(R.id.linqty);
this.lindiscount = (LinearLayout)itemView.findViewById(R.id.coupancodeavailable);
this.discounttext = (TextView)itemView.findViewById(R.id.listitem_buynow_discountstring);
this.firsttxt = (TextView)itemView.findViewById(R.id.firsttext);
this.thirdtxt = (TextView)itemView.findViewById(R.id.thirdtext);
}
}
}
deletetocart
JsonArrayRequest request = new JsonArrayRequest(Request.Method.POST, addtocarturl, new JSONObject(params),
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
System.out.println("response -->> " + response.toString());
cartlist=new ArrayList<CartModel>();
try {
for (int i = 0; i < response.length(); i++) {
JSONObject person = (JSONObject) response
.get(i);
System.out.println("person"+person);
String responsecode = person.getString("subTotal");
System.out.println("subtot"+responsecode);
System.out.println("person"+person);
if(person.getString("responseCode").equals("1"))
{
JSONArray itemslist=person.optJSONArray("itemList");
if(itemslist==null)
{
Toast.makeText(BuyNowActivity.this, "Your Shopping Cart is Empty", Toast.LENGTH_SHORT).show();
}
else {
for (int j = 0; j < itemslist.length(); j++) {
JSONObject cartitems = itemslist.getJSONObject(j);
CartModel cvm = new CartModel();
cvm.setCart_Product_Name(cartitems.getString("prodNarration"));
cvm.setCart_Product_Price(cartitems.getString("finalPrice"));
cvm.setCart_Product_Id(cartitems.getString("productId"));
cvm.setCart_Product_Img(cartitems.getString("packLink"));
cvm.setCart_Product_Qty(cartitems.getString("qty"));
cvm.setCart_Product_packDiscount(cartitems.getString("packDIscDesc"));
cartlist.add(cvm);
}
Toast.makeText(BuyNowActivity.this, "Product Removed Successfully", Toast.LENGTH_SHORT).show();
}
}
else {
System.out.println("something wrong");
}
rcAdapter = new HeaderFooterAdapter(BuyNowActivity.this,cartlist);
rView.setAdapter(rcAdapter);
}
Angenommen, Sie übergeben idlistData in einer Aktivität A an Ihren Adapter, dann können Sie idlistData.remove (index) aufrufen, um ein Element in diesem Index zu entfernen. Danach müssen Sie yourAdapter.notifyDataSetChanged() aufrufen und die Ansicht aktualisieren . Möglicherweise hat sich Ihr Datensatz geändert, Sie haben die Ansicht jedoch nicht aktualisiert. –
zusätzlich ist Ihr Adapter zu lang für StackOverflow ... Sie sollten alle unnötigen Code entfernen, der Ihr Problem nicht reproduziert –
@progressive_overload nach dem Löschen von Daten wird aktualisiert..aber wenn es letzten Artikel erreicht, bekomme ich nicht PACKID von Sysout –