列表视图在更新所选原始数据时更新另一个原始数据 [英] Listview update another raw on update of selected raw
本文介绍了列表视图在更新所选原始数据时更新另一个原始数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
- 我正在处理一个购物车"应用程序.
- 我在其中显示产品列表，每个未加工的产品都有添加到购物车"按钮， 每当用户单击它时，该按钮都将变为禁用状态，并应显示另一个包含加减数量的视图.
- 但是当我单击任何一个产品的添加到购物车"按钮时，该视图将被更新；但是当我滚动列表视图时，另一个视图将自动更新(不是全部).
- I working on one Shopping Cart application.
- In which i show list of products and in that every raw there is "Add to Cart" button, Whenever user clicks on it then that button goes to disable and another view which holds add and subtract quantity should be display.
- But when i clicks on any single product "Add to Cart" button then that view is going to be update, But when i scroll listview then another view gets update automatically (Not all).
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>推荐答案
我也受此困扰，并意识到我认为此链接对您有所帮助.
I suffer from this also and realize that i think this links are help you.
谢谢
这篇关于列表视图在更新所选原始数据时更新另一个原始数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
