在Recycler View适配器中，必须检查``数量''是否大于或为零，是否从我发送给setter模型的Json URL中获取了数量字符串。物品。
适配器：
public class CartlistAdapter extends RecyclerView.Adapter < CartlistAdapter.ViewHolder > {
private ArrayList < CartItemoriginal > cartlistadp;
private ArrayList < Cartitemoringinaltwo > cartlistadp2;
DisplayImageOptions options;
private Context context;
public static final String MyPREFERENCES = "MyPrefs";
public static final String MYCARTPREFERENCE = "CartPrefs";
public static final String MyCartQtyPreference = "Cartatyid";
SharedPreferences.Editor editor;
SharedPreferences shared,
wishshared;
SharedPreferences.Editor editors;
String pos,
qtyDelete;
String date;
String currentDateandTime;
private static final int VIEW_TYPE_ONE = 1;
private static final int VIEW_TYPE_TWO = 2;
private static final int TYPE_HEADER = 0;
private Double orderTotal = 0.00;
DecimalFormat df = new DecimalFormat("0");
Double extPrice;
View layout,
layouts;
SharedPreferences sharedPreferences;
SharedPreferences.Editor QutId;
boolean flag = false;
public CartlistAdapter() {
}
public CartlistAdapter(ArrayList < CartItemoriginal > cartlistadp, Context context) {
this.cartlistadp = cartlistadp;
this.cartlistadp2 = cartlistadp2;
this.context = context;
options = new DisplayImageOptions.Builder().cacheOnDisk(true).cacheInMemory(true).showImageOnLoading(R.drawable.b2)
.showImageForEmptyUri(R.drawable.b2).build();
if (YelloPage.imageLoader.isInited()) {
YelloPage.imageLoader.destroy();
}
YelloPage.imageLoader.init(ImageLoaderConfiguration.createDefault(context));
}
public int getItemViewType(int position) {
if (cartlistadp.size() == 0) {
Toast.makeText(context, String.valueOf(cartlistadp), Toast.LENGTH_LONG).show();
return VIEW_TYPE_TWO;
}
return VIEW_TYPE_ONE;
}
@Override
public CartlistAdapter.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int position) {
ViewHolder viewHolder = null;
switch (position) {
case VIEW_TYPE_TWO:
View view2 = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.activity_cart, viewGroup, false);
viewHolder = new ViewHolder(view2, new MyTextWatcher(viewGroup, position));
// return view holder for your placeholder
break;
case VIEW_TYPE_ONE:
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.cartitemrow, viewGroup, false);
viewHolder = new ViewHolder(view, new MyTextWatcher(view, position));
// return view holder for your normal list item
break;
}
return viewHolder;
}
@Override
public void onBindViewHolder(CartlistAdapter.ViewHolder viewHolder, int position) {
viewHolder.productnames.setText(cartlistadp.get(position).getProductname());
int totalqty = Integer.parseInt(cartlistadp.get(position).getTotalOutOfStockQuantity());
Log.i("totaqty", String.valueOf(totalqty));
String zero = "0";
if (!cartlistadp.get(position).getTotalOutOfStockQuantity().equalsIgnoreCase(zero)) {
viewHolder.cartalisname.setText(cartlistadp.get(position).getAliasname());
viewHolder.cartprice.setText("Rs" + " " + (Integer.parseInt(cartlistadp.get(position).getPrice()) * cartlistadp.get(position).getQty()));
viewHolder.cartdelivery.setText(cartlistadp.get(position).getDelivery());
viewHolder.cartshippin.setText(cartlistadp.get(position).getShippincharge());
viewHolder.cartsellername.setText(cartlistadp.get(position).getSellername());
viewHolder.Error.setText(cartlistadp.get(position).getError());
viewHolder.qty.setTag(cartlistadp.get(position));
viewHolder.myTextWatcher.updatePosition(position);
if (cartlistadp.get(position).getQty() != 0) {
viewHolder.qty.setText(String.valueOf(cartlistadp.get(position).getQty()));
} else {
viewHolder.qty.setText("0");
}
// viewHolder.cartoutofstock.setVisibility(View.GONE);
} else {
viewHolder.cartoutofstock.setText("Out Of Stock");
viewHolder.deliverylinear.setVisibility(View.GONE);
viewHolder.qtylinear.setVisibility(View.GONE);
viewHolder.sellerlinear.setVisibility(View.GONE);
viewHolder.cartprice.setVisibility(View.GONE);
viewHolder.cartalisname.setVisibility(View.GONE);
viewHolder.cartoutofstock.setText("Out Of Stock");
viewHolder.cartoutofstock.setVisibility(View.VISIBLE);
viewHolder.bottomview.setVisibility(View.GONE);
viewHolder.Error.setVisibility(View.GONE);
}
YelloPage.imageLoader.displayImage(cartlistadp.get(position).getProductimg(), viewHolder.cartitemimg, options);
}
@Override
public int getItemCount() {
return cartlistadp.size();
}
public long getItemId(int position) {
return position;
}
public Object getItem(int position) {
return cartlistadp.get(position);
}
public class ViewHolder extends RecyclerView.ViewHolder {
private TextView productnames, cartalisname, cartprice, cartdelivery, cartshippin, cartsellername, Error, total, cartoutofstock;
private ImageView cartitemimg;
private ImageButton wishbtn, removebtn;
private LinearLayout removecart, movewishlist;
private CardView cd;
private EditText qty;
private ImageView WishImg;
public MyTextWatcher myTextWatcher;
public LinearLayout qtylinear, deliverylinear, sellerlinear;
public View bottomview;
public ViewHolder(final View view, MyTextWatcher myTextWatcher) {
super(view);
productnames = (TextView) view.findViewById(R.id.cartitemname);
cartalisname = (TextView) view.findViewById(R.id.cartalias);
cartprice = (TextView) view.findViewById(R.id.CartAmt);
cartdelivery = (TextView) view.findViewById(R.id.cartdel);
cartshippin = (TextView) view.findViewById(R.id.shippingcrg);
cartsellername = (TextView) view.findViewById(R.id.cartSellerName);
cartitemimg = (ImageView) view.findViewById(R.id.cartimg);
Error = (TextView) view.findViewById(R.id.error);
qtylinear = (LinearLayout) view.findViewById(R.id.qtylinear);
deliverylinear = (LinearLayout) view.findViewById(R.id.deliverlinear);
sellerlinear = (LinearLayout) view.findViewById(R.id.sellerlinear);
cartoutofstock = (TextView) view.findViewById(R.id.CartOutofstock);
bottomview = (View) view.findViewById(R.id.bottomview);
this.myTextWatcher = myTextWatcher;
removecart = (LinearLayout) view.findViewById(R.id.removecart);
movewishlist = (LinearLayout) view.findViewById(R.id.movewishlist);
WishImg = (ImageView) view.findViewById(R.id.wishimg);
qty = (EditText) view.findViewById(R.id.quantity);
qty.addTextChangedListener(myTextWatcher);
String pid, qid;
sharedPreferences = view.getContext().getSharedPreferences(MYCARTPREFERENCE, Context.MODE_PRIVATE);
QutId = sharedPreferences.edit();
Log.d("Position checking1 ---", String.valueOf(getAdapterPosition()));
qty.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
qty.setSelection(qty.getText().length());
return false;
}
});
wishshared = view.getContext().getSharedPreferences(MyPREFERENCES, context.MODE_PRIVATE);
editors = view.getContext().getSharedPreferences(MyPREFERENCES, context.MODE_PRIVATE).edit();
shared = view.getContext().getSharedPreferences(MYCARTPREFERENCE, context.MODE_PRIVATE);
editor = view.getContext().getSharedPreferences(MYCARTPREFERENCE, context.MODE_PRIVATE).edit();
cd = (CardView) view.findViewById(R.id.cv);
productnames.setSingleLine(false);
productnames.setEllipsize(TextUtils.TruncateAt.END);
productnames.setMaxLines(2);
view.setClickable(true);
// view.setFocusableInTouchMode(true);
removecart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (cartlistadp.size() == 1) {
Intent list = new Intent(v.getContext(), Cart.class);
context.startActivity(list);
((Activity) context).finish();
removeAt(getAdapterPosition());
Log.i(String.valueOf(getPosition()), "item");
Toast.makeText(context, "All items deleted from your WishList", Toast.LENGTH_LONG).show();
} else {
removeAt(getAdapterPosition());
}
}
});
MovewishList();
totalPrice();
Checkout_Button();
}
代码：
public void servicecallsingle(String list, final int pin) {
url = Constants.cart_Url + "&product_id=" + list + "&pincode=" + pin;
pDialog.show();
JsonObjectRequest request1 = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener < JSONObject > () {
@Override
public void onResponse(JSONObject response) {
JSONObject response1 = response;
if (response1 != null) {
// int status=jsonObject.optInt("status");
String status = response1.optString("status");
if (status.equalsIgnoreCase("200")) { //check the status 200 or not
try {
productpath = response1.getString("productPath");
} catch (JSONException e) {
e.printStackTrace();
}
JSONObject responses = null;
try {
responses = response1.getJSONObject("response");
jsonarray = responses.getJSONArray(DATA);
} catch (JSONException e) {
e.printStackTrace();
}
if (jsonarray.length() > 0) {
// looping through json and adding to movies list
for (int i = 0; i < jsonarray.length(); i++) {
// Log.i(String.valueOf(jsonarray.length()) + i,"firstmsg");
item = new CartItemoriginal();
JSONObject product = null;
try {
product = jsonarray.getJSONObject(i);
qtyshared = itemsQty.getString(i + 1);
if (qtyshared.equalsIgnoreCase("0")) {
} else {
cartpid = product.getString("product_id");
cartproductname = product.getString("product_name");
cartaliasname = product.getString("product_alias");
cartprice = product.getString("mrp_price");
String sp = product.getString("selling_price");
String op = product.getString("offer_selling_price");
sellerid = product.getString("seller_id");
JSONArray pimg = product.getJSONArray("product_images");
JSONObject firstimg = pimg.getJSONObject(0);
cartimg = firstimg.getString("original_res");
String[] img2 = cartimg.split("\\.");
String imagone = productpath + sellerid + '/' + img2[0] + '(' + '2' + '0' + '0' + ')' + '.' + img2[1];
String Quantity = product.getString("product_max_add");
String minqty = product.getString("product_min_add");
String OutOfStockQuantity = product.getString("quantity");
int qty = Integer.parseInt(Quantity);
/* ** calculation ***/
Long tsLong = System.currentTimeMillis() / 1000;
String ts = tsLong.toString();
int ts1 = Integer.parseInt(ts);
String startdate1 = product.getString("offer_selling_start_date");
String endate1 = product.getString("offer_selling_end_date");
if (("".equals(startdate1)) && ("".equals(endate1))) {
// Toast.makeText(getActivity(),"wrong statemnt",Toast.LENGTH_LONG).show();
if (cartprice.equalsIgnoreCase(sp)) {
double d = Double.parseDouble(cartprice);
int mrp = (int) d;
price = String.valueOf(mrp);
} else {
double s = Double.parseDouble(sp);
int sales = (int) s;
price = String.valueOf(sales);
}
} else {
int startdate = Integer.parseInt(startdate1);
int endate2 = Integer.parseInt(endate1);
if (ts1 > startdate && ts1 < endate2) {
double offer = Double.parseDouble(op);
int offers = (int) offer;
price = String.valueOf(offers);
} else {
if (cartprice.equalsIgnoreCase(sp)) {
double d = Double.parseDouble(cartprice);
int mrp = (int) d;
price = String.valueOf(mrp);
} else {
double s = Double.parseDouble(sp);
int sales = (int) s;
price = String.valueOf(sales);
}
}
}
item.setProductname(cartproductname);
item.setProductimg(imagone);
item.setMaxquantity(Quantity);
item.setAliasname(cartaliasname);
item.setPrice(price);
item.setMinquantity(minqty);
item.setProductid(cartpid);
item.setQty(Integer.parseInt(qtyshared));
item.setTotalOutOfStockQuantity(OutOfStockQuantity);
Log.i("outofstcokquanitity", OutOfStockQuantity);
JSONObject pincode = product.getJSONObject("seller");
process = pincode.getString("process");
Message = pincode.getString("message");
if (process.equalsIgnoreCase("success") && Message.equalsIgnoreCase("success")) {
cartdelivery = pincode.getString("delivery");
cartshippingcharge = pincode.getString("shipping_charge");
String pincodes = pincode.getString("pincode");
/**************************calculation of shipping days**************************/
int day = Integer.parseInt(cartdelivery);
Calendar c = Calendar.getInstance();
String dayNumberSuffix = getDayNumberSuffix(day);
SimpleDateFormat sdf = new SimpleDateFormat(" MMM d'" + dayNumberSuffix + "', yyyy");
String currentDateandTime = sdf.format(new Date());
try {
c.setTime(sdf.parse(currentDateandTime));
} catch (ParseException e) {
e.printStackTrace();
}
c.add(Calendar.DATE, day);
Date resultdate = new Date(c.getTimeInMillis());
currentDateandTime = sdf.format(resultdate);
Log.d(String.valueOf(currentDateandTime) + ta, "shipping days");
item.setDelivery("Standard delivery by" + " " + currentDateandTime);
item.setShippincharge(cartshippingcharge);
item.setSellername("richard feloboune");
} else {
item.setError("Seller doesn't deliver to this item to" + " " + String.valueOf(pinnum));
}
cart.add(item);
}
// cart.add(new CartItemoriginal(imagone,cartproductname,cartaliasname,1,Quantity,minqty,price,cartpid));
} catch (JSONException e) {
e.printStackTrace();
}
}
}
} // condtion check the status 200
else // this is if status falied in runtime
{
Toast.makeText(CartItems.this, "Status Failed in Banner Page check ur network connection", Toast.LENGTH_LONG).show();
}
} else {
Toast.makeText(CartItems.this, "Status Failed in Banner Page check ur network connection", Toast.LENGTH_LONG).show();
}
// llm = new LinearLayoutManager(CartItems.this);
if (cart == null || cart.size() == 0) {
RelativeLayout item = (RelativeLayout) findViewById(R.id.container_Realtivelayout);
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
myView = inflater.inflate(R.layout.activity_cart, null);
item.addView(myView);
MainLinear.setVisibility(View.GONE);
} else {
MainLinear.setVisibility(View.VISIBLE);
final CustomLinearLayoutManagercartpage layoutManager = new CustomLinearLayoutManagercartpage(CartItems.this, LinearLayoutManager.VERTICAL, false);
recyleitems.setHasFixedSize(false);
recyleitems.setLayoutManager(layoutManager);
cartadapter = new CartlistAdapter(cart, CartItems.this);
Log.i(String.valueOf(cartadapter), "cartadapter");
recyleitems.setAdapter(cartadapter);
recyleitems.setNestedScrollingEnabled(false);
myView.setVisibility(View.GONE);
cartadapter.notifyDataSetChanged();
}
pincheck();
pDialog.hide();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.i("onErrorResponse", error.toString());
pDialog.hide();
}
});
AppController.getInstance().addToRequestQueue(request1);
}
我想显示一件商品，但它显示三件缺货。任何人都可以解决这个问题。
高兴地感谢，在此先感谢。
我得到了检查条件是否正确的解决方案，但是我为其他部分设置了很多视图的可见性，因此当我进入其他部分时进行循环时，时间线性布局的可见性消失了，因此下一次循环无法显示视图，因为已经存在可见性了布局。我现在解决了。谢谢
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