Listview更新所选原始更新的另一个原始

Question

• 我正在开发一个购物车应用程序。
  • 其中我显示产品列表，并且每个原始产品都有“添加到购物车”按钮， 每当用户点击它时，该按钮将进入禁用状态，并且应显示另一个包含加减数量的视图。
  • 但是当我点击任何单个产品“添加到购物车”按钮时，该视图将会更新，但是当我滚动listview时，另一个视图会自动更新（不是全部）。

适配器

public class CategoryProductListAdapter extends BaseAdapter {
Context context;
ArrayList<ProductDetailsModel> productDetailsModels;
FragmentManager fragmentManager;
LayoutInflater inflater;

public CategoryProductListAdapter(Context context, ArrayList<ProductDetailsModel> productDetailsModels) {
    this.context = context;
    this.productDetailsModels = productDetailsModels;
    inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public CategoryProductListAdapter(Context context, ArrayList<ProductDetailsModel> productDetailsModels,FragmentManager fragmentManager) {
    this.context = context;
    this.productDetailsModels = productDetailsModels;
    this.fragmentManager = fragmentManager;
    inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

@Override
public int getCount() {
    return productDetailsModels.size();
}

@Override
public Object getItem(int i) {
    return productDetailsModels.get(i);
}

@Override
public long getItemId(int i) {
    return 0;
}

public class Holder {
    LinearLayout llProductRawMain, llProductQty;
    ImageView imgProduct;
    TextView txtProductTitle, txtProductUnit;
    Spinner spProductUnits;
    Button btnAddProduct, btnSubProduct;
    EditText etNoOfProduct;
    TextView txtProductPrice;
    Button btnAddToCart;
}

@Override
public View getView(final int i, View view, ViewGroup viewGroup) {
    final Holder holder;
    if (view == null) {
        holder = new Holder();
        view = inflater.inflate(R.layout.category_product_list_raw, viewGroup, false);
        holder.llProductRawMain = (LinearLayout) view.findViewById(R.id.llProductRawMain);
        holder.llProductQty = (LinearLayout) view.findViewById(R.id.llProductQty);
        holder.imgProduct = (ImageView) view.findViewById(R.id.imgProduct);
        holder.txtProductTitle = (TextView) view.findViewById(R.id.txtProductTitle);
        holder.txtProductUnit = (TextView) view.findViewById(R.id.txtProductUnit);
        holder.spProductUnits = (Spinner) view.findViewById(R.id.spProductUnits);
        holder.btnAddProduct = (Button) view.findViewById(R.id.btnAddProduct);
        holder.btnSubProduct = (Button) view.findViewById(R.id.btnSubProduct);
        holder.etNoOfProduct = (EditText) view.findViewById(R.id.etNoOfProduct);
        holder.txtProductPrice = (TextView) view.findViewById(R.id.txtProductPrice);
        holder.btnAddToCart = (Button) view.findViewById(R.id.btnAddToCart);

        view.setTag(holder);
    } else {
        holder = (Holder) view.getTag();
    }

    holder.txtProductTitle.setText(Html.fromHtml(productDetailsModels.get(i).getName()));
    if (productDetailsModels.get(i).getUnits().size() > 0) {
        holder.txtProductUnit.setVisibility(View.GONE);
        holder.spProductUnits.setVisibility(View.VISIBLE);
        ImageLoader.getInstance().displayImage(productDetailsModels.get(i).getUnits().get(0).getThumb(), holder.imgProduct, DisplayImageOption.getDisplayImage(), new AnimateFirstDisplayListener());
        holder.txtProductPrice.setText(context.getString(R.string.rupee) + " " + productDetailsModels.get(i).getUnits().get(0).getPrice());

        ArrayList<ProductUnitModel> units = new ArrayList<>();
        units.clear();
        units.addAll(productDetailsModels.get(i).getUnits());

        ProductUnitsListAdapter productUnitsListAdapter = new ProductUnitsListAdapter(context, units);
        holder.spProductUnits.setAdapter(productUnitsListAdapter);

        holder.spProductUnits.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view, int j, long l) {
                holder.etNoOfProduct.setText("1");
                ImageLoader.getInstance().displayImage(productDetailsModels.get(i).getUnits().get(j).getThumb(), holder.imgProduct, DisplayImageOption.getDisplayImage(), new AnimateFirstDisplayListener());
                holder.txtProductPrice.setText(context.getString(R.string.rupee) + " " + productDetailsModels.get(i).getUnits().get(j).getPrice());
            }

            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {

            }
        });

    } else {
        holder.spProductUnits.setVisibility(View.GONE);
        holder.txtProductUnit.setVisibility(View.VISIBLE);
        holder.txtProductUnit.setText(productDetailsModels.get(i).getUnit());
        ImageLoader.getInstance().displayImage(productDetailsModels.get(i).getImage(), holder.imgProduct, DisplayImageOption.getDisplayImage(), new AnimateFirstDisplayListener());
        holder.txtProductPrice.setText(context.getString(R.string.rupee) + " " + productDetailsModels.get(i).getPrice());
    }

    holder.llProductRawMain.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (productDetailsModels.get(i).getUnits().size() > 0) {
                /*Intent intent = new Intent(context, ProductDetailActivity.class);
                intent.putExtra("productDetailModel", productDetailsModels.get(i));
                intent.putExtra("productUnits", true);
                intent.putExtra("productUnitPos", holder.spProductUnits.getSelectedItemPosition());
                context.startActivity(intent);*/

                //FragmentManager fragmentManager = fra;
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                ProductDetailFragment productDetailFragment = new ProductDetailFragment();

                Bundle bundles = new Bundle();
                ProductDetailsModel productInfoModel = productDetailsModels.get(i);
                boolean productUnits = true;
                int productUnitPos = holder.spProductUnits.getSelectedItemPosition();
                bundles.putSerializable("productDetailModel", productInfoModel);
                bundles.putBoolean("productUnits",productUnits);
                bundles.putInt("productUnitPos",productUnitPos);
                productDetailFragment.setArguments(bundles);

                fragmentTransaction.replace(R.id.frameContainer, productDetailFragment);
                fragmentTransaction.addToBackStack(productDetailFragment.getClass().getName());
                fragmentTransaction.commit();

            } else {
                /*Intent intent = new Intent(context, ProductDetailActivity.class);
                intent.putExtra("productDetailModel", productDetailsModels.get(i));
                intent.putExtra("productUnits", false);
                intent.putExtra("productUnitPos", 0);
                context.startActivity(intent);*/

                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                ProductDetailFragment productDetailFragment = new ProductDetailFragment();

                Bundle bundles = new Bundle();
                ProductDetailsModel productInfoModel = productDetailsModels.get(i);
                boolean productUnits = false;
                int productUnitPos = 0;
                bundles.putSerializable("productDetailModel", productInfoModel);
                bundles.putBoolean("productUnits",productUnits);
                bundles.putInt("productUnitPos",productUnitPos);
                productDetailFragment.setArguments(bundles);

                fragmentTransaction.replace(R.id.frameContainer, productDetailFragment);
                fragmentTransaction.addToBackStack(productDetailFragment.getClass().getName());
                fragmentTransaction.commit();
            }
        }
    });
    holder.btnAddProduct.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String product_id;
            String variation_id;

            int qty = Integer.parseInt(holder.etNoOfProduct.getText().toString());
            qty++;
            holder.etNoOfProduct.setText(String.valueOf(qty));
            double qtyWisePrice = qty * Double.parseDouble(productDetailsModels.get(i).getPrice());
            holder.txtProductPrice.setText(context.getString(R.string.rupee) + " " + String.valueOf(qtyWisePrice));

            if (productDetailsModels.get(i).getUnits().size() > 0) {
                product_id = productDetailsModels.get(i).getUnits().get(holder.spProductUnits.getSelectedItemPosition()).getProduct_id();
                variation_id = productDetailsModels.get(i).getUnits().get(holder.spProductUnits.getSelectedItemPosition()).getVariation_id();
            } else {
                product_id = productDetailsModels.get(i).getProduct_id();
                variation_id = productDetailsModels.get(i).getVariation_id();
            }

            updateCart(product_id, variation_id, qty);
        }
    });

    holder.btnSubProduct.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            String product_id;
            String variation_id;

            int qty = Integer.parseInt(holder.etNoOfProduct.getText().toString());
            qty--;
            if (qty > 0) {
                holder.etNoOfProduct.setText(String.valueOf(qty));
                double qtyWisePrice = qty * Double.parseDouble(productDetailsModels.get(i).getPrice());
                holder.txtProductPrice.setText(context.getString(R.string.rupee) + " " + String.valueOf(qtyWisePrice));

                if (productDetailsModels.get(i).getUnits().size() > 0) {
                    product_id = productDetailsModels.get(i).getUnits().get(holder.spProductUnits.getSelectedItemPosition()).getProduct_id();
                    variation_id = productDetailsModels.get(i).getUnits().get(holder.spProductUnits.getSelectedItemPosition()).getVariation_id();
                } else {
                    product_id = productDetailsModels.get(i).getProduct_id();
                    variation_id = productDetailsModels.get(i).getVariation_id();
                }

                updateCart(product_id, variation_id, qty);
            } else {
                Toast.makeText(context, "Quntity can not be zero!", Toast.LENGTH_SHORT).show();
            }
        }
    });

    holder.btnAddToCart.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            final boolean isUserLogin = AppMethod.getBooleanPreference((Activity) context, AppConstant.PREF_IS_LOGGED_IN);
            if (isUserLogin) {
                holder.llProductQty.setVisibility(View.VISIBLE);
                holder.btnAddToCart.setVisibility(View.GONE);
                String product_id;
                String variation_id;
                if (productDetailsModels.get(i).getUnits().size() > 0) {
                    product_id = productDetailsModels.get(i).getUnits().get(holder.spProductUnits.getSelectedItemPosition()).getProduct_id();
                    variation_id = productDetailsModels.get(i).getUnits().get(holder.spProductUnits.getSelectedItemPosition()).getVariation_id();
                } else {
                    product_id = productDetailsModels.get(i).getProduct_id();
                    variation_id = productDetailsModels.get(i).getVariation_id();
                }
                updateCart(product_id, variation_id, 1);
            } else {
                Toast.makeText(context, "Please Login for Add to Cart !", Toast.LENGTH_SHORT).show();
            }
        }
    });

    return view;
}

private void updateCart(String product_id, String variation_id, int qty) {
    String customer_id = AppMethod.getStringPreference((Activity) context, AppConstant.PREF_USER_ID);

    if (AppMethod.isNetworkConnected((Activity) context)) {
        JSONObject jsonObject = new JSONObject();
        try {
            jsonObject.put("product_id", product_id);
            jsonObject.put("variation_id", variation_id);
            jsonObject.put("qty", qty);
            jsonObject.put("customer_id", customer_id);

            WsHttpPostJson wsHttpPostJson = new WsHttpPostJson(context, AppConstant.ADD_CART_WS, jsonObject.toString());
            wsHttpPostJson.execute(AppConstant.ADD_CART_WS_URL);

        } catch (JSONException e) {
            e.printStackTrace();
        }
    } else {
        Toast.makeText(context, AppConstant.NO_INTERNET_CONNECTION, Toast.LENGTH_SHORT).show();
    }
}

适配器的XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical">

<LinearLayout
    android:id="@+id/llProductRawMain"
    android:layout_width="175dp"
    android:layout_height="wrap_content"
    android:background="@drawable/product_grid_item_bg"
    android:orientation="horizontal"
    android:padding="2dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/white"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/imgProduct"
                android:layout_width="match_parent"
                android:layout_height="@dimen/_80sdp"
                android:padding="@dimen/_5sdp"
                android:src="@mipmap/ic_launcher" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical"
            android:padding="@dimen/view_margin">

            <TextView
                android:id="@+id/txtProductTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:maxLines="2"
                android:minLines="2"
                android:textSize="@dimen/_11sdp"
                android:text="Product Title"
                android:textColor="#000000" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/txtProductUnit"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/_25sdp"
                    android:gravity="center_vertical"
                    android:padding="5dp"
                    android:textSize="@dimen/_11sdp"
                    android:text="Product Unit" />

                <Spinner
                    android:id="@+id/spProductUnits"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/_25sdp"
                    android:gravity="center"
                    android:background="@drawable/icon_dropdown"
                    android:visibility="gone" />
            </LinearLayout>

            <TextView
                android:id="@+id/txtProductPrice"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="5dp"
                android:text="\u20B9 200"
                android:textStyle="bold"
                android:textSize="@dimen/_13sdp"
                android:textColor="#185401" />

        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <LinearLayout
                android:id="@+id/llProductQty"
                android:layout_width="match_parent"
                android:layout_height="@dimen/_30sdp"
                android:background="@color/app_color"
                android:orientation="horizontal"
                android:visibility="gone">

                <Button
                    android:id="@+id/btnSubProduct"
                    android:layout_width="@dimen/_25sdp"
                    android:layout_height="@dimen/_25sdp"
                    android:layout_gravity="center_vertical"
                    android:background="@drawable/icon_minus"
                    android:gravity="center" />
                <EditText
                    android:id="@+id/etNoOfProduct"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_gravity="center_vertical"
                    android:layout_weight="1"
                    android:background="@null"
                    android:ems="10"
                    android:enabled="false"
                    android:textSize="@dimen/_10sdp"
                    android:gravity="center"
                    android:inputType="number"
                    android:text="1"
                    android:textColor="@color/white" />
                <Button
                    android:id="@+id/btnAddProduct"
                    android:layout_width="@dimen/_25sdp"
                    android:layout_height="@dimen/_25sdp"
                    android:layout_gravity="center_vertical"
                    android:background="@drawable/icon_plus"
                    android:gravity="center" />
            </LinearLayout>
            <Button
                android:id="@+id/btnAddToCart"
                android:layout_width="match_parent"
                android:layout_height="@dimen/_30sdp"
                android:background="@color/add_to_cart_btn_bg"
                android:text="ADD TO CART"
                android:textSize="@dimen/_12sdp"
                android:textColor="@color/app_color" />
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

Answer 1

我也受此影响，并意识到我认为这些链接可以帮助你。

Answer-1

Answer-2

由于