我已经在android中创建了一个应用程序。在我的托管服务器中,存储了两种类型的图像路径,一种是从google下载的,另一种是我创建的域的文件夹。访问所有图像时,会显示所有下载的图像,但在我的Android应用中看不到保存的图像。
这是我的主要活动
public class MainActivity extends AppCompatActivity {
//this is the JSON Data URL
//make sure you are using the correct ip else it will not work
private static final String URL_PRODUCTS = "http://mdconstructionpune.com/AndriodPHP/Api.php";
//a list to store all the products
List<Product> productList;
//the recyclerview
RecyclerView recyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//getting the recyclerview from xml
recyclerView = findViewById(R.id.recyclerView);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
//initializing the productlist
productList = new ArrayList<>();
//this method will fetch and parse json
//to display it in recyclerview
loadProducts();
}
private void loadProducts() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, URL_PRODUCTS,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONArray array = new JSONArray(response);
for (int i = 0; i < array.length(); i++) {
JSONObject product = array.getJSONObject(i);
productList.add(new Product(
product.getInt("id"),
product.getString("title"),
product.getString("shortdesc"),
product.getDouble("rating"),
product.getDouble("price"),
product.getString("image")
));
}
ProductAdapter adapter = new ProductAdapter(MainActivity.this, productList);
recyclerView.setAdapter(adapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
});
//adding our stringrequest to queue
Volley.newRequestQueue(this).add(stringRequest);
}
}
我的适配器类是
public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.ProductViewHolder> {
private Context mCtx;
private List<Product> productList;
public ProductAdapter(Context mCtx, List<Product> productList) {
this.mCtx = mCtx;
this.productList = productList;
}
@Override
public ProductViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(mCtx);
View view = inflater.inflate(R.layout.product_list, null);
return new ProductViewHolder(view);
}
@Override
public void onBindViewHolder(ProductViewHolder holder, int position) {
Product product = productList.get(position);
//loading the image
Glide.with(mCtx)
.load(product.getImage())
.into(holder.imageView);
holder.textViewTitle.setText(product.getTitle());
holder.textViewShortDesc.setText(product.getShortdesc());
holder.textViewRating.setText(String.valueOf(product.getRating()));
holder.textViewPrice.setText(String.valueOf(product.getPrice()));
}
@Override
public int getItemCount() {
return productList.size();
}
class ProductViewHolder extends RecyclerView.ViewHolder {
TextView textViewTitle, textViewShortDesc, textViewRating, textViewPrice;
ImageView imageView;
public ProductViewHolder(View itemView) {
super(itemView);
textViewTitle = itemView.findViewById(R.id.textViewTitle);
textViewShortDesc = itemView.findViewById(R.id.textViewShortDesc);
textViewRating = itemView.findViewById(R.id.textViewRating);
textViewPrice = itemView.findViewById(R.id.textViewPrice);
imageView = itemView.findViewById(R.id.imageView);
}
}
并且模型类是
public class Product {
private int id;
private String title;
private String shortdesc;
private double rating;
private double price;
private String image;
public Product(int id, String title, String shortdesc, double rating, double price, String image) {
this.id = id;
this.title = title;
this.shortdesc = shortdesc;
this.rating = rating;
this.price = price;
this.image = image;
}
public int getId() {
return id;
}
public String getTitle() {
return title;
}
public String getShortdesc() {
return shortdesc;
}
public double getRating() {
return rating;
}
public double getPrice() {
return price;
}
public String getImage() {
return image;
}
答案 0 :(得分:0)
产品型号类别
public class Product {
private String image;
public Product(String id) {
id = image;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
}
主要活动课程
public class MainActivity extends AppCompatActivity {
RecyclerView recyclerView;
Product product;
List<Product> productList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Application.getInstance().initAppLanguage(this);
setContentView(R.layout.activity_main);
recyclerView = findViewById(R.id.recycler_view);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
productList = new ArrayList<>();
loadProducts();
}
private void loadProducts() {
StringRequest stringRequest = new StringRequest(Request.Method.GET, "http://mdconstructionpune.com/AndriodPHP/Api.php",
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d("Responce",response);
try {
JSONArray array = new JSONArray(response);
for (int i = 0; i < array.length(); i++) {
JSONObject product1 = array.getJSONObject(i);
String id = product1.getString("image");
product = new Product(id);
product.setImage(id);
productList.add(product);
}
ProductAdapter adapter = new ProductAdapter(MainActivity.this, productList);
recyclerView.setAdapter(adapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
});
//adding our stringrequest to queue
Volley.newRequestQueue(this).add(stringRequest);
}
适配器类
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import java.util.List;
public class ProductAdapter extends RecyclerView.Adapter<ProductAdapter.ProductViewHolder> {
private Context mCtx;
private List<Product> productList;
public ProductAdapter(Context mCtx, List<Product> productList) {
this.mCtx = mCtx;
this.productList = productList;
}
@Override
public ProductViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(mCtx);
View view = inflater.inflate(R.layout.product_list, null);
return new ProductViewHolder(view);
}
@Override
public void onBindViewHolder(ProductViewHolder holder, int position) {
Product product = productList.get(position);
//loading the image
Glide.with(mCtx)
.load(product.getImage())
.into(holder.imageView);
/* holder.textViewTitle.setText(product.getTitle());
holder.textViewShortDesc.setText(product.getShortdesc());
holder.textViewRating.setText(String.valueOf(product.getRating()));
holder.textViewPrice.setText(String.valueOf(product.getPrice()));*/
}
@Override
public int getItemCount() {
return productList.size();
}
class ProductViewHolder extends RecyclerView.ViewHolder {
TextView textViewTitle, textViewShortDesc, textViewRating, textViewPrice;
ImageView imageView;
public ProductViewHolder(View itemView) {
super(itemView);
/* textViewTitle = itemView.findViewById(R.id.textViewTitle);
textViewShortDesc = itemView.findViewById(R.id.textViewShortDesc);
textViewRating = itemView.findViewById(R.id.textViewRating);
textViewPrice = itemView.findViewById(R.id.textViewPrice);*/
imageView = itemView.findViewById(R.id.imageView);
}
}
}
尝试此代码并获取其工作图像