Java 如何从android中的特定JSONObects获取ArrayList?
我做了一个Java 如何从android中的特定JSONObects获取ArrayList?,java,android,json,web-services,arraylist,Java,Android,Json,Web Services,Arraylist,我做了一个android活动,我正在解析来自JSON-webservice的一些数据,并将其显示到列表视图中,现在我的问题是在我的webservice中,每个jsonObject都有字符串数组(图像URL),所以我不知道如何分别获取每个数组列表,我已经尝试过了,但是把所有的ArrayValue都放到了一个arrayList中,请帮助我在android中如何将每个json对象的数组分开,我的代码和Web服务如下: 适配器 package com.eps.blancatours.adapter;
android
活动,我正在解析来自JSON-webservice
的一些数据,并将其显示到列表视图中,现在我的问题是在我的webservice中,每个jsonObject都有字符串数组(图像URL),所以我不知道如何分别获取每个数组列表,我已经尝试过了,但是把所有的ArrayValue都放到了一个arrayList中,请帮助我在android中如何将每个json对象的数组分开,我的代码和Web服务如下:
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;
}
}
package com.eps.blancatours.adapter;
导入java.util.ArrayList;
导入java.util.HashMap;
导入android.content.Context;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.ViewGroup;
导入android.widget.BaseAdapter;
导入android.widget.ImageView;
导入android.widget.TextView;
进口公司eps.blancatours.R;
导入com.nostra13.universalimageloader.core.DisplayImageOptions;
导入com.nostra13.universalimageloader.core.ImageLoader;
导入com.nostra13.universialimageloader.core.imageloader配置;
公共类DestinationAdapter扩展BaseAdapter{
公共数组列表detary;
私有上下文;
私有显示图像选项;
公共静态图像加载器;
@抑制警告(“弃用”)
公共目标适配器(上下文参数上下文,
ArrayList(列表){
this.mContext=paramContext;
this.detArray=list;
imageLoader=imageLoader.getInstance();
init(ImageLoaderConfiguration.createDefault(paramContext));
选项=新建DisplayImageOptions.Builder().cacheOnDisc(true)
.showStubImage(R.drawable.noimage)
.showmageonfail(R.drawable.noimage.build();
System.out.println(“:::::::我的结果数组列表:::::::::”
+名单);
}
public int getCount(){
返回此.detArray.size();
}
公共对象getItem(int参数){
返回整数.valueOf(paramInt);
}
公共长getItemId(int参数){
返回参数;
}
@SuppressWarnings({“静态访问”、“未选中”})
公共视图getView(int-paramInt、View-paramView、ViewGroup-paramViewGroup){
LayoutInflater localLayoutInflater=(LayoutInflater)this.mContext
.getSystemService(“布局和充气机”);
Viewholder localViewholder=null;
if(paramView==null){
paramView=LocalLayoutFlater.充气(R.layout.raw_dest,
paramViewGroup,false);
localViewholder=新的Viewholder();
localViewholder.destImg=((图像视图)参数视图
.findViewById(R.id.iv_dest));
localViewholder.destName=((TextView)paramView
.findviewbyd(R.id.tv_city));
setTag(localViewholder);
}否则{
localViewholder=新的Viewholder();
localViewholder=(Viewholder)paramView.getTag();
}
for(HashMap desti:detArray){
系统输出打印(“目的id:+Desti.get(“id”);
系统输出打印(“目的地名称:”+Desti.get(“名称”);
系统输出打印(“目的程序:”+Desti.get(“程序”);
系统输出打印(“目标程序链接:”
+目的地获取(“程序链接”);
System.out.print(“目标图像\u数组大小:”
+((ArrayList)desti.get(“images_array”).size();
ArrayList酒店=(ArrayList)Destin
.获取(“酒店”);
适用于(HashMap酒店:酒店){
系统输出打印(“酒店id:+hotel.get(“id”));
系统输出打印(“酒店城市id:+hotel.get”(“城市id”);
系统输出打印(“酒店名称:”+hotel.get(“名称”));
System.out.print(“酒店图像\u数组大小:”
+((ArrayList)hotel.get(“images_array”))
.size());
}
localViewholder.destName.setText(detArray.get(paramInt).desti
.get(“name”);
imageLoader.displayImage(detArray.get(paramInt).get(0),
localViewholder.mg,选项);
返回参数视图;
}
}
静态类视窗夹{
ImageView-mg;
文本视图名称;
}
}
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);
}
}
ListView lv\u dest;
目的适配器;
私人对话;
JSONObject destinations=null;
JSONArray imgArray=null;
标题hdr;
JSONArray hotelArray=null;
菜单;
数组列表;
ArrayList Destinlist、hotelList、hotel_images;
字符串id;
字符串名;
字符串程序;
字符串程序链接;
字符串酒店;
字符串城市标识;
字符串酒店;
杰索纳雷酒店;
意图一;
私有类GetDestinations扩展异步任务{
@凌驾
受保护的void onPreExecute(){
super.onPreExecute();
//显示进度对话框
pDialog=新建进度对话框(DestinationsActivity.this);
setMessage(getResources().getString(R.string.wait));
pDialog.setCancelable(假);
pDialog.show();
}
@凌驾
受保护的Void doInBackground(Void…arg0){
//创建服务处理程序类实例
BackendAPIService sh=新的BackendAPIService();
系统输出
.println(“::::::::目的地URL::::::::>>>”
+常数(API_目的地);
//向url发出请求并获得响应
字符串jsonStr=sh.makeServiceCall(Const.API_目的地,
BackendAPIService.GET);
Log.d(“响应:”、“>”+jsonStr);
if(jsonStr!=null){
试一试{
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;
}
}