Question

这是图片

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public class ProductFragment extends Fragment  implements SearchView.OnQueryTextListener,ProductAdaptor.ProductAdapterListener {
private static final String TAG = ProductFragment.class.getSimpleName();
/** The default socket timeout in milliseconds */
public static final int DEFAULT_TIMEOUT_MS = 2500;

/** The default number of retries */
public static final int DEFAULT_MAX_RETRIES = 1;

/** The default backoff multiplier */
public static final float DEFAULT_BACKOFF_MULT = 1f;
private ProductAdaptor adapter;
private RecyclerView recyclerView;
private RequestQueue requestQueue;
private VolleySingleton volleySingleton;
// To store all the products
private static  List<ProductInfo> productsList=new ArrayList<>();
ProductAdaptor.ProductAdapterListener listener;
 //Progress dialog
private ProgressDialog pDialog;

public static ProductFragment newInstance() {
    return new ProductFragment();
}
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    pDialog = new ProgressDialog(getActivity());
    pDialog.setCancelable(false);
    listener=this;
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View layout=inflater.inflate(R.layout.product_fragment,container,false);
    recyclerView= (RecyclerView) layout.findViewById(R.id.productList);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    pDialog.setMessage("Fetching products...");
    showpDialog();
    volleySingleton=VolleySingleton.getInstance();
    requestQueue=volleySingleton.getRequestQueue();
    JsonObjectRequest jsObjRequest = new JsonObjectRequest
            (Request.Method.GET, AppConfig.URL_PRODUCTS, (String) null, new Response.Listener<JSONObject>() {

                @Override
                public void onResponse(JSONObject response) {
                    //hide the progress dialog
                    hidepDialog();
                    adapter=new ProductAdaptor(getActivity(),parseJSONOResponse(response),listener);
                    recyclerView.setAdapter(adapter);
                }
            }, new Response.ErrorListener() {

                @Override
                public void onErrorResponse(VolleyError error) {

                    VolleyLog.d(TAG, "Error: " + error.getMessage());
                    Toast.makeText(MyApplication.getAppContext(),
                            error.getMessage(), Toast.LENGTH_SHORT).show();
                    // hide the progress dialog
                    hidepDialog();

                }
            });
    // Wait 20 seconds and don't retry more than once

    jsObjRequest.setRetryPolicy(new DefaultRetryPolicy(
             DEFAULT_TIMEOUT_MS,
            DEFAULT_MAX_RETRIES,
            DEFAULT_BACKOFF_MULT));

    requestQueue.add(jsObjRequest);



    return layout;
}


@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    setHasOptionsMenu(true);



}
public boolean PerformSearch(String searchString){

    //adapter.getFilter().filter(searchString);
    return true;

}

public void setDataSet(List<ProductInfo> newDataSet){
    productsList = newDataSet;
    adapter=new ProductAdaptor(MyApplication.getAppContext(),productsList,this);
    recyclerView.swapAdapter(adapter, false);
    //new way of filtering data

}

private List<ProductInfo> parseJSONOResponse(JSONObject response){
    try {

        JSONArray products = response.getJSONArray("products");
        for (int i = 0; i < products.length(); i++) {

            JSONObject product = (JSONObject) products
                    .get(i);

            String id = product.getString("product_id");
            String name = product.getString("name");
            String description = product
                    .getString("description");
            String image = AppConfig.URL_IMAGE_PRODUCTS + product.getString("image");
            BigDecimal price = new BigDecimal(product
                    .getString("price"));

            ProductInfo p = new ProductInfo(id, name, description,
                    image, price);

            productsList.add(p);

        }
        return productsList;
    } catch (JSONException e) {

        e.printStackTrace();
        Toast.makeText(getActivity(),
                "Error: " + e.getMessage(),
                Toast.LENGTH_LONG).show();
    }
    return productsList;

}
@Override
public void onAddToCartPressed(ProductInfo product) {
    CartHandler cartHandler=new CartHandler(MyApplication.getAppContext());

    if (cartHandler.getProductsInCartCount()==0) {
        cartHandler.addProductInCart(product);
        Toast.makeText(MyApplication.getAppContext(),
                product.getName() + " added to cart!", Toast.LENGTH_SHORT).show();

    }
    else{
        ProductInfo temp=cartHandler.getProductInCart(Integer.parseInt(product.getId()));
        if (temp!=null){

            cartHandler.updateProduct(product);
            Toast.makeText(MyApplication.getAppContext(),
                    product.getName() + " added to cart!", Toast.LENGTH_SHORT).show();
        }else
        {

            cartHandler.addProductInCart(product);
                   Toast.makeText(MyApplication.getAppContext(),
                   product.getName() + " added to cart!",  Toast.LENGTH_SHORT).show();
        }
    }


}
private void showpDialog() {
    if (!pDialog.isShowing()){
        pDialog.show();
    }
}

private void hidepDialog() {
    if (pDialog.isShowing())
        pDialog.dismiss();
}


@Override
public boolean onQueryTextSubmit(String query) {

    return false;
}

@Override
public boolean onQueryTextChange(String query) {
   // final List<ProductInfo> filteredModelList = filter(productsList, query);
   // adapter.animateTo(filteredModelList);
    //recyclerView.scrollToPosition(0);
    return true;
}

private List<ProductInfo> filter(List<ProductInfo> models, String query) {
    query = query.toLowerCase();

    final List<ProductInfo> filteredModelList = new ArrayList<>();
    for (ProductInfo model : models) {
        final String text = model.getName().toLowerCase();
        if (text.contains(query)) {
            filteredModelList.add(model);
        }
    }
    return filteredModelList;
}

}

产品适配器

public class ProductAdaptor extends RecyclerView.Adapter<ProductAdaptor.ProductViewHolder>{
    //implements Filterable {

private final LayoutInflater inflator;
private final List<ProductInfo> products;
private Context context;
private ProductAdapterListener listener;
ImageLoader imageLoader = VolleySingleton.getInstance().getImageLoader();
//private List<ProductInfo> BackupProducts= Collections.emptyList();
ProductInfo current;

public ProductAdaptor(Context context, List<ProductInfo> data, ProductAdapterListener listener){
    inflator= LayoutInflater.from(context);
    products=data;
    this.context=context;
    this.listener=listener;
    //BackupProducts=data;
}

@Override
public ProductAdaptor.ProductViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view=inflator.inflate(R.layout.custom_product, parent, false);
    ProductViewHolder holder=new ProductViewHolder(view);

    return holder;
}

@Override
public void onBindViewHolder(final ProductAdaptor.ProductViewHolder holder, final int position) {
    current=products.get(position);
    holder.title.setText(current.getName());
    holder.icon.setImageUrl(current.getImage(), imageLoader);
    holder.price.setText("Price: Rs. " + current.getPrice());
    holder.description.setText(current.getDescription());
    holder.add_Cart.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            products.get(position).setQuantity(Integer.parseInt(holder.etQuantity.getText().toString()));
            listener.onAddToCartPressed(products.get(position));
        }
    });
    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Log.d("Reading Position", "" + current.getId());
            Intent base=new Intent(context, Products.class);
            base.putExtra("product_id", Integer.parseInt(products.get(position).getId()));
            base.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
            context.startActivity(base);
        }
    });

}
public void setData(List<ProductInfo> list){
    products.clear();
    products.addAll(list);
    notifyDataSetChanged();
}
/*
public void flushFilter(){
    products.clear();
    products.addAll(BackupProducts);
    notifyDataSetChanged();
}*/

public void animateTo(List<ProductInfo> models) {
    applyAndAnimateRemovals(models);
    applyAndAnimateAdditions(models);
    applyAndAnimateMovedItems(models);
}

private void applyAndAnimateRemovals(List<ProductInfo> newModels) {
    for (int i = products.size() - 1; i >= 0; i--) {
        final ProductInfo model = products.get(i);
        if (!newModels.contains(model)) {
            removeItem(i);
        }
    }
}

private void applyAndAnimateAdditions(List<ProductInfo> newModels) {
    for (int i = 0, count = newModels.size(); i < count; i++) {
        final ProductInfo model = newModels.get(i);
        if (!products.contains(model)) {
            addItem(i, model);
        }
    }
}

private void applyAndAnimateMovedItems(List<ProductInfo> newModels) {
    for (int toPosition = newModels.size() - 1; toPosition >= 0; toPosition--) {
        final ProductInfo model = newModels.get(toPosition);
        final int fromPosition = products.indexOf(model);
        if (fromPosition >= 0 && fromPosition != toPosition) {
            moveItem(fromPosition, toPosition);
        }
    }
}

public ProductInfo removeItem(int position) {
    final ProductInfo model = products.remove(position);
    notifyItemRemoved(position);
    return model;
}

public void addItem(int position, ProductInfo model) {
    products.add(position, model);
    notifyItemInserted(position);
}

public void moveItem(int fromPosition, int toPosition) {
    final ProductInfo model = products.remove(fromPosition);
    products.add(toPosition, model);
    notifyItemMoved(fromPosition, toPosition);
}


@Override
public int getItemCount() {
    return products.size();
}
/*
@Override
public Filter getFilter() {
    //flushFilter();
    return new CardFilter(this,BackupProducts);
}
*/


public interface ProductAdapterListener {
    void onAddToCartPressed(ProductInfo product);
}


class ProductViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
    TextView title;
    NetworkImageView icon;
    TextView price;
    TextView description;
    LinearLayout add_Cart;
    TextView etQuantity;

    public ProductViewHolder(final View itemView) {

        super(itemView);

        icon =(NetworkImageView) itemView.findViewById(R.id.productImage);
        title = (TextView) itemView.findViewById(R.id.productName);
        price= (TextView) itemView.findViewById(R.id.productPrice);
        description=(TextView) itemView.findViewById(R.id.productDescription);
        add_Cart= (LinearLayout) itemView.findViewById(R.id.add_cart);
        etQuantity= (TextView) itemView.findViewById(R.id.quanity);

    }

    @Override
    public void onClick(View v) {

    }
}

这些都是此产品列表的类别，如果您需要更多信息，请发表评论

提前致谢

有两个类，它们从我的json中获取产品并将其分配给视图持有者

Answer 1

这个问题是由于重叠的片段造成的，我正在像这样开始片段

fragment=ProductFragment.newInstance();
            getSupportFragmentManager().beginTransaction()
                    .replace(R.id.productFragment,fragment )
                    .commit();

所以简单地说就是

fragment=ProductFragment.newInstance();

解决了我的问题。

谢谢你们的帮助@MohammadAllam

Answer 2

在多次搜索后，我也遇到了这个问题，我修复了它，更新了gradle依赖关系，我认为这是因为一个旧的android依赖关系发生了。

andorid Recycler View与列表相互重叠

2 个答案:

andorid Recycler View与列表相​​互重叠

2 个答案:

andorid Recycler View与列表相互重叠