I am using RecyclerView in my app which contains a list of products. User is able to change quantity if each and every project. But the problem is this while I scroll the quantity of each product changed. I checked my code but is it working fine. What to do. Please help. While scrolling it is changing the quantity of items

Code :

           <?xml version="1.0" encoding="utf-8"?>
     <RelativeLayout 
        xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
       android:layout_height="match_parent"
        android:layout_margin="@dimen/dp10">


<TextView
    android:id="@+id/txt_review_incorrect_delivery"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="@dimen/dp10"
    android:text="@string/pre_order"
    android:textColor="@color/colorPrimary"
    android:textSize="@dimen/dp20"
    android:textStyle="bold" />


<ScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/txt_review_incorrect_delivery">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_margin="@dimen/dp10"
        android:orientation="vertical">

        <LinearLayout
            android:id="@+id/layProducts"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:weightSum="1">

            <TextView
                android:id="@+id/txtProducts"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="0.95"
                android:background="@drawable/blue_strip"
                android:padding="@dimen/dp10"
                android:text="@string/products"
                android:textColor="@android:color/white"
                android:textSize="@dimen/dp18" />

        </LinearLayout>

        <android.support.v7.widget.RecyclerView
            android:id="@+id/listProducts"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp10"
            android:divider="@null"
            android:dividerHeight="0dp"
            tools:listitem="@layout/item_pre_order_article" />

        <LinearLayout
            android:id="@+id/layTrading"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:weightSum="1">

            <TextView
                android:id="@+id/txtTrading"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="@dimen/dp10"
                android:layout_weight="0.95"
                android:background="@drawable/blue_strip"
                android:padding="@dimen/dp10"
                android:text="@string/trading"
                android:textColor="@android:color/white"
                android:textSize="@dimen/dp18" />

        </LinearLayout>

        <android.support.v7.widget.RecyclerView
            android:id="@+id/listTrading"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp10"
            android:divider="@null"
            android:dividerHeight="0dp"
            tools:listitem="@layout/item_pre_order_article" />


        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:weightSum="1">


            <TextView
                android:id="@+id/txtListUnrecognisedCode"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="@dimen/dp10"
                android:layout_weight="0.95"
                android:background="@drawable/blue_strip"
                android:padding="@dimen/dp10"
                android:text="@string/list_unrecognised"
                android:textColor="@android:color/white"
                android:textSize="@dimen/dp18" />


        </LinearLayout>

        <android.support.v7.widget.RecyclerView
            android:id="@+id/listUnrecognisedCode"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp10"
            android:divider="@null"
            android:dividerHeight="0dp"
            tools:listitem="@layout/item_list_unrecognised_code" />

        <TextView
            android:id="@+id/txtRemarksShopOwner"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp10"
            android:padding="@dimen/dp10"
            android:text="@string/remarks_shop_owner"
            android:textColor="@color/colorNormalGray"
            android:textSize="@dimen/dp18"
            android:textStyle="bold" />

        <EditText
            android:id="@+id/etRemarksShopOwner"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/text_box"
            android:padding="@dimen/dp5" />

        <TextView
            android:id="@+id/txtInternalRemarks"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp10"
            android:padding="@dimen/dp10"
            android:text="@string/internal_remarks"
            android:textColor="@color/colorNormalGray"
            android:textSize="@dimen/dp18"
            android:textStyle="bold" />
        `

        <EditText
            android:id="@+id/etInternalRemarks"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/text_box"
            android:padding="@dimen/dp5" />


        <ImageButton
            android:id="@+id/btnSubmitReport"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="@dimen/dp20"
            android:layout_marginBottom="@dimen/dp10"
            android:background="@android:color/transparent"
            android:src="@drawable/submit_pre_order" />


    </LinearLayout>


</ScrollView>


<ProgressBar
    android:id="@+id/pBar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:visibility="gone" />

Adapter Code:

         public class AdapterPreOrderProducts extends RecyclerView.Adapter<AdapterPreOrderProducts.MyViewHolder> {

Context context;
Integer articelQuantity;
ArrayList<ModelCart> modelCartProductList;

ModelCart modelCart;
DatabaseHelper databaseHelper;
FinalizePreOrderFragment finalizePreOrderFragment;

int product_position;


public AdapterPreOrderProducts(Context context, ArrayList<ModelCart> modelCartProductList, FinalizePreOrderFragment finalizePreOrderFragment) {
    this.context = context;
    this.modelCartProductList = modelCartProductList;
    this.finalizePreOrderFragment = finalizePreOrderFragment;

}


public class MyViewHolder extends RecyclerView.ViewHolder {
    TextView txtArticleName, txtArticleNo, txtEANNo, txtMBHQty, txtArticleQuantity;
    ImageButton imgAddQty, imgSubQty;
    ImageView imgDeleteOrder;
    EditText etArticleQty;

    public MyViewHolder(View view) {
        super(view);

        txtArticleName = (TextView) view.findViewById(R.id.txtArticleName);
        txtArticleNo = (TextView) view.findViewById(R.id.txtArticleNo);
        imgAddQty = (ImageButton) view.findViewById(R.id.imgAddQty);
        imgSubQty = (ImageButton) view.findViewById(R.id.imgSubQty);
        etArticleQty = (EditText) view.findViewById(R.id.etArticleQty);
        txtEANNo = (TextView) view.findViewById(R.id.txtEANNo);
        txtMBHQty = (TextView) view.findViewById(R.id.txtMBHQty);
        txtArticleQuantity = (TextView) view.findViewById(R.id.txtArticleQuantity);
        imgDeleteOrder = (ImageView) view.findViewById(R.id.imgDeleteOrder);


    }

}


@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.item_pre_order_article, parent, false);

    return new MyViewHolder(itemView);
}

@Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {

    databaseHelper = new DatabaseHelper(context);

    modelCart = modelCartProductList.get(position);
    holder.txtArticleName.setText(modelCart.getCart_product_name_fr());
    holder.txtArticleNo.setText(modelCart.getCart_product_art());
    holder.txtEANNo.setText(modelCart.getCart_product_EAN());
    holder.txtMBHQty.setText(modelCart.getCart_product_MBH());
    holder.txtArticleQuantity.setText(modelCart.getProduct_total_quantity());
    holder.etArticleQty.setText(modelCart.getProduct_quantity());


    holder.imgDeleteOrder.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            finalizePreOrderFragment.deleteProduct(position);
        }
    });


    // click listener on buttons
    holder.imgAddQty.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            ModelCart modelCart1 = modelCartProductList.get(position);

            articelQuantity = Integer.parseInt(holder.etArticleQty.getText().toString());
            articelQuantity = articelQuantity + 1;
            holder.etArticleQty.setText(articelQuantity + "");

            int totalQty = articelQuantity * Integer.parseInt(modelCart1.getCart_product_MBH());
            Log.e("TAG", "onClick:totalQty" + totalQty);
            holder.txtArticleQuantity.setText(String.valueOf(totalQty));
            int MBH = Integer.parseInt(modelCart1.getCart_product_MBH());
            Log.e("TAG", "onClick:alldetails" + modelCart1.getCart_product_id() + " " + modelCart1.getProduct_quantity());
            modelCart1.setProduct_quantity(articelQuantity.toString());
            modelCart1.setProduct_total_quantity(MBH * articelQuantity + "");
            modelCart1.setCart_product_id(modelCart1.getCart_product_id());

            databaseHelper.updateCartTable(modelCart1);

            finalizePreOrderFragment.grandTotalProducts(modelCartProductList);
            finalizePreOrderFragment.calculateFranco();

        }
    });
    holder.imgSubQty.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (Integer.parseInt(holder.etArticleQty.getText().toString()) > 1) {


                ModelCart modelCart1 = modelCartProductList.get(position);

                holder.imgSubQty.setClickable(true);
                articelQuantity = Integer.parseInt(holder.etArticleQty.getText().toString());
                articelQuantity = articelQuantity - 1;
                holder.etArticleQty.setText(articelQuantity + "");

                int MBH = Integer.parseInt(modelCart1.getCart_product_MBH());

                int totalQty = articelQuantity * Integer.parseInt(modelCart1.getCart_product_MBH());

                holder.txtArticleQuantity.setText(String.valueOf(totalQty));

                modelCart1.setProduct_quantity(articelQuantity.toString());
                modelCart1.setProduct_total_quantity(MBH * articelQuantity + "");
                modelCart1.setCart_product_id(modelCart1.getCart_product_id());

                Log.e("TAG", "onClick:alldetailsminus" + modelCart1.getCart_product_id() + " " + modelCart1.getProduct_quantity());


                databaseHelper.updateCartTable(modelCart1);

                finalizePreOrderFragment.grandTotalProducts(modelCartProductList);
                finalizePreOrderFragment.calculateFranco();

            }
        }
    });

    holder.etArticleQty.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

        }

        @Override
        public void afterTextChanged(Editable editable) {


            if (!(holder.etArticleQty.getText().toString().matches(""))) {


                ModelCart modelCart1 = modelCartProductList.get(position);

                articelQuantity = Integer.parseInt(holder.etArticleQty.getText().toString());
                int MBH = Integer.parseInt(modelCart1.getCart_product_MBH());

                int totalQty = articelQuantity * Integer.parseInt(modelCart1.getCart_product_MBH());
                holder.txtArticleQuantity.setText(String.valueOf(totalQty));
                modelCart1.setProduct_quantity(articelQuantity.toString());
                modelCart1.setProduct_total_quantity(MBH * articelQuantity + "");
                modelCart1.setCart_product_id(modelCart1.getCart_product_id());
                databaseHelper.updateCartTable(modelCart1);
                finalizePreOrderFragment.grandTotalProducts(modelCartProductList);
                finalizePreOrderFragment.calculateFranco();

            }


        }
    });


}

@Override
public int getItemCount() {
    return modelCartProductList.size();
}


 }

0 Answers