我做了一个android Activity ，我正在解析来自JSON webservice的一些数据并将其显示到ListView中，现在我的问题是在我的网络服务中，每个 jsonObject 都有字符串数组(图像网址)，所以我不知道如何单独获取每个数组列表，我已经尝试过，但将所有数组值放入一个数组列表中，请帮助我如何为每个 json 执行单独的数组android中的对象，我的代码和网络服务如下:
webservice link
适配器
package com.eps.blancatours.adapter;
import java.util.ArrayList;
import java.util.HashMap;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.eps.blancatours.R;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
public class DestinationAdapter extends BaseAdapter {
public ArrayList<HashMap<String, Object>> detArray;
private Context mContext;
private DisplayImageOptions options;
public static ImageLoader imageLoader;
@SuppressWarnings("deprecation")
public DestinationAdapter(Context paramContext,
ArrayList<HashMap<String, Object>> list) {
this.mContext = paramContext;
this.detArray = list;
imageLoader = ImageLoader.getInstance();
imageLoader.init(ImageLoaderConfiguration.createDefault(paramContext));
options = new DisplayImageOptions.Builder().cacheOnDisc(true)
.showStubImage(R.drawable.noimage)
.showImageOnFail(R.drawable.noimage).build();
System.out.println(":::::::::::::::mY rESULTANT aRRALYlIST::::::::::::"
+ list);
}
public int getCount() {
return this.detArray.size();
}
public Object getItem(int paramInt) {
return Integer.valueOf(paramInt);
}
public long getItemId(int paramInt) {
return paramInt;
}
@SuppressWarnings({ "static-access", "unchecked" })
public View getView(int paramInt, View paramView, ViewGroup paramViewGroup) {
LayoutInflater localLayoutInflater = (LayoutInflater) this.mContext
.getSystemService("layout_inflater");
Viewholder localViewholder = null;
if (paramView == null) {
paramView = localLayoutInflater.inflate(R.layout.raw_dest,
paramViewGroup, false);
localViewholder = new Viewholder();
localViewholder.destImg = ((ImageView) paramView
.findViewById(R.id.iv_dest));
localViewholder.destName = ((TextView) paramView
.findViewById(R.id.tv_city));
paramView.setTag(localViewholder);
} else {
localViewholder = new Viewholder();
localViewholder = (Viewholder) paramView.getTag();
}
for (HashMap<String, Object> desti : detArray) {
System.out.print("Desti id : " + desti.get("id"));
System.out.print("Desti name : " + desti.get("name"));
System.out.print("Desti program : " + desti.get("program"));
System.out.print("Desti program_link : "
+ desti.get("program_link"));
System.out.print("Desti images_array size : "
+ ((ArrayList<String>) desti.get("images_array")).size());
ArrayList<HashMap<String, Object>> hotels = (ArrayList<HashMap<String, Object>>) desti
.get("hotels");
for (HashMap<String, Object> hotel : hotels) {
System.out.print("hotel id : " + hotel.get("id"));
System.out.print("hotel city_id : " + hotel.get("city_id"));
System.out.print("hotel name : " + hotel.get("name"));
System.out.print("hotel images_array size : "
+ ((ArrayList<String>) hotel.get("images_array"))
.size());
}
localViewholder.destName.setText(detArray.get(paramInt).desti
.get("name"));
imageLoader.displayImage(detArray.get(paramInt).get(0),
localViewholder.destImg, options);
return paramView;
}
}
static class Viewholder {
ImageView destImg;
TextView destName;
}
}
代码
ListView lv_dest;
DestinationAdapter adapter;
private ProgressDialog pDialog;
JSONObject destinations = null;
JSONArray imgArray = null;
Header hdr;
JSONArray hotelArray = null;
Menu menu;
ArrayList<HashMap<String, String>> destList;
ArrayList<String> destiList, hotelList, hotel_images;
String id;
String name;
String program;
String program_link;
String hotel_id;
String city_id;
String hotel_name;
JSONArray hotel_images_array;
Intent i;
private class GetDestinations extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(DestinationsActivity.this);
pDialog.setMessage(getResources().getString(R.string.wait));
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
BackendAPIService sh = new BackendAPIService();
System.out
.println("::::::::::::::::::DESTINATIONS URL:::::::>>>>>>>>>"
+ Const.API_DESTINATIONS);
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(Const.API_DESTINATIONS,
BackendAPIService.GET);
Log.d("Response: ", "> " + jsonStr);
if (jsonStr != null) {
try {
JSONArray jsonArr = new JSONArray(jsonStr);
// Getting JSON Array node
// yes
// looping through All Contacts
for (int i = 0; i < jsonArr.length(); i++) {
JSONObject c = jsonArr.getJSONObject(i);
id = c.getString("id");
name = c.getString("name");
program = c.getString("program");
program_link = c.getString("program_link");
imgArray = c.getJSONArray("images_array");
HashMap<String, String> Destimap = new HashMap<String, String>();
Destimap.put("id", id);
Destimap.put("name", name);
Destimap.put("program", program);
Destimap.put("program_link", program_link);
if (imgArray != null && imgArray.length() != 0) {
for (int j = 0; j < imgArray.length(); j++) {
destiList.add(imgArray.getString(j));
System.out
.println("::::::::::::::::::IMAGE URL:::::::::::::::::"
+ imgArray.getString(j));
}
}
hotelArray = c.getJSONArray("hotels");
if (hotelArray != null && hotelArray.length() != 0) {
for (int k = 0; k < hotelArray.length(); k++) {
JSONObject d = hotelArray.getJSONObject(k);
hotel_id = d.getString("id");
city_id = d.getString("city_id");
hotel_name = d.getString("name");
Destimap.put("hotel_id", hotel_id);
Destimap.put("city_id", city_id);
Destimap.put("hotel_name", hotel_name);
hotel_images_array = d
.getJSONArray("images_array");
if (hotel_images_array != null
&& hotel_images_array.length() != 0) {
for (int l = 0; l < hotel_images_array
.length(); l++) {
hotel_images.add(hotel_images_array
.getString(l));
}
}
}
}
destList.add(Destimap);
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
/**
* Updating parsed JSON data into ListView
* */
adapter = new DestinationAdapter(DestinationsActivity.this,
destList, destiList);
lv_dest.setAdapter(adapter);
}
}
最佳答案
试试这个方法，希望能帮助您解决问题。
String jsonStr ="[{\"id\":\"1\",\"name\":\"Bodrum\",\"program\":null,\"program_link\":null,\"images_array\":[\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f3fde123b.jpg\",\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f3fde20d4.jpg\",\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f3fde21c6.jpg\",\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f43b43e37.jpg\"],\"hotels\":[{\"id\":\"3\",\"city_id\":\"1\",\"name\":\"Bodrum Hotel\",\"images_array\":[]}]},{\"id\":\"2\",\"name\":\"Bursa\",\"program\":null,\"program_link\":null,\"images_array\":[\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f4ff167a8.jpg\",\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f4ff168e1.jpg\",\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f4ff169cb.jpg\"],\"hotels\":[{\"id\":\"4\",\"city_id\":\"2\",\"name\":\"Bursa Hotel\",\"images_array\":[]}]},{\"id\":\"3\",\"name\":\"Istanbul\",\"program\":null,\"program_link\":null,\"images_array\":[\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f5d1927ce.jpg\"],\"hotels\":[{\"id\":\"2\",\"city_id\":\"3\",\"name\":\"Istanbul Hotel\",\"images_array\":[]}]},{\"id\":\"4\",\"name\":\"Bolu\",\"program\":null,\"program_link\":null,\"images_array\":[\"http:\\/\\/dev.booking.blancatours.com\\/uploads\\/53d1f8f500afc.jpg\"],\"hotels\":[]},{\"id\":\"5\",\"name\":\"Trabzon\",\"program\":null,\"program_link\":null,\"images_array\":[],\"hotels\":[]},{\"id\":\"6\",\"name\":\"Yalova\",\"program\":null,\"program_link\":null,\"images_array\":[],\"hotels\":[]},{\"id\":\"7\",\"name\":\"Sapanca\",\"program\":null,\"program_link\":null,\"images_array\":[],\"hotels\":[]},{\"id\":\"8\",\"name\":\"Antalya\",\"program\":null,\"program_link\":null,\"images_array\":[],\"hotels\":[]}]";
try {
JSONArray jsonArr = new JSONArray(jsonStr);
ArrayList<HashMap<String,Object>> list = new ArrayList<HashMap<String, Object>>();
for (int i = 0; i < jsonArr.length(); i++) {
HashMap<String, Object> destiMap = new HashMap<String, Object>();
destiMap.put("id", jsonArr.getJSONObject(i).getString("id"));
destiMap.put("name", jsonArr.getJSONObject(i).getString("name"));
destiMap.put("program", jsonArr.getJSONObject(i).getString("program"));
destiMap.put("program_link", jsonArr.getJSONObject(i).getString("program_link"));
ArrayList<String> images = new ArrayList<String>();
JSONArray imagesJsonArray = jsonArr.getJSONObject(i).getJSONArray("images_array");
for(int j=0;j<imagesJsonArray.length();j++){
images.add(imagesJsonArray.getString(j));
}
destiMap.put("images_array", images);
ArrayList<HashMap<String,Object>> hotels = new ArrayList<HashMap<String,Object>>();
JSONArray hotelsJsonArray = jsonArr.getJSONObject(i).getJSONArray("hotels");
for(int j=0;j<hotelsJsonArray.length();j++){
HashMap<String,Object> hotelMap = new HashMap<String, Object>();
hotelMap.put("id",hotelsJsonArray.getJSONObject(j).getString("id"));
hotelMap.put("city_id",hotelsJsonArray.getJSONObject(j).getString("city_id"));
hotelMap.put("name",hotelsJsonArray.getJSONObject(j).getString("name"));
ArrayList<String> hotelImages = new ArrayList<String>();
JSONArray hotelImagesJsonArray = hotelsJsonArray.getJSONObject(j).getJSONArray("images_array");
for(int k=0;k<hotelImagesJsonArray.length();k++){
hotelImages.add(hotelImagesJsonArray.getString(k));
}
hotelMap.put("images_array", hotelImages);
hotels.add(hotelMap);
}
destiMap.put("hotels",hotels);
list.add(destiMap);
}
for (HashMap<String,Object> desti : list){
System.out.print("Desti id : " + desti.get("id"));
System.out.print("Desti name : " + desti.get("name"));
System.out.print("Desti program : "+desti.get("program"));
System.out.print("Desti program_link : " + desti.get("program_link"));
System.out.print("Desti images_array size : "+((ArrayList<String>)desti.get("images_array")).size());
ArrayList<HashMap<String,Object>> hotels = (ArrayList<HashMap<String,Object>>) desti.get("hotels");
for (HashMap<String,Object> hotel : hotels){
System.out.print("hotel id : " + hotel.get("id"));
System.out.print("hotel city_id : " + hotel.get("city_id"));
System.out.print("hotel name : "+hotel.get("name"));
System.out.print("hotel images_array size : "+((ArrayList<String>)hotel.get("images_array")).size());
}
}
} catch (JSONException e) {
e.printStackTrace();
}
public class DestinationAdapter extends BaseAdapter {
public ArrayList<HashMap<String, Object>> detArray;
private Context mContext;
private DisplayImageOptions options;
public static ImageLoader imageLoader;
@SuppressWarnings("deprecation")
public DestinationAdapter(Context paramContext,ArrayList<HashMap<String, Object>> list) {
this.mContext = paramContext;
this.detArray = list;
imageLoader = ImageLoader.getInstance();
imageLoader.init(ImageLoaderConfiguration.createDefault(paramContext));
options = new DisplayImageOptions.Builder().cacheOnDisc(true)
.showStubImage(R.drawable.noimage)
.showImageOnFail(R.drawable.noimage).build();
}
public int getCount() {
return detArray.size();
}
public Object getItem(int pos) {
return detArray.get(pos);
}
public long getItemId(int pos) {
return pos;
}
public View getView(int position, View view, ViewGroup paramViewGroup) {
Viewholder holder;
if (view == null) {
holder = new Viewholder();
view = LayoutInflater.from(mContext).inflate(R.layout.raw_dest, paramViewGroup, false);
holder.destImg = (ImageView) view.findViewById(R.id.iv_dest);
holder.destName = (TextView) view.findViewById(R.id.tv_city);
view.setTag(holder);
} else {
holder = (Viewholder) view.getTag();
}
holder.destName.setText((String)detArray.get(position).get("name"));
holder.destName.setText((String)detArray.get(position).get("name"));
ArrayList<String> images = (ArrayList<String>)detArray.get(position).get("images_array");
if(images!=null && images.size()>0){
imageLoader.displayImage(images.get(0),holder.destImg, options);
}
return view;
}
class Viewholder {
ImageView destImg;
TextView destName;
}
}
关于java - 如何从android中的特定JSON对象获取ArrayList？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/25073503/