Java 如何在Expandale列表视图中绑定Json数据?
我想将json数据绑定到Android中的可扩展列表视图。 显示以下错误 错误:Java 如何在Expandale列表视图中绑定Json数据?,java,android,json,expandablelistview,Java,Android,Json,Expandablelistview,我想将json数据绑定到Android中的可扩展列表视图。 显示以下错误 错误: Error:(175, 65) error: incompatible types: MainActivity.ExecuteTask cannot be converted to Context Json数据: [{"PART_ID":"01684.021","SHIFT_DATE":"20-SEP-17","PLAN_QTY":"2","ACTUAL_QTY":"2"}, {"PART_ID":"03
Error:(175, 65) error: incompatible types: MainActivity.ExecuteTask cannot be converted to Context
Json数据:
[{"PART_ID":"01684.021","SHIFT_DATE":"20-SEP-17","PLAN_QTY":"2","ACTUAL_QTY":"2"},
{"PART_ID":"0346001.020","SHIFT_DATE":"20-SEP-17","PLAN_QTY":"4","ACTUAL_QTY":"4"},
{"PART_ID":"01068.021","SHIFT_DATE":"20-SEP-17","PLAN_QTY":"7","ACTUAL_QTY":"7"}]
ExpandableListAdapter.java
package com.example.saravanakumars.expandable_listview;
import android.content.Context;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
import java.util.HashMap;
import java.util.List;
/**
* Created by saravanakumars on 10/3/2017.
*/
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
// ArrayList<TerbaruModel>ListTerbaru;
// ArrayList<ArrayList<ChildTerbaru>> ListChildTerbaru;
// int count;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
package com.example.saravanakumars.expandable_listview;
导入android.content.Context;
导入android.graphics.Typeface;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.ViewGroup;
导入android.widget.BaseExpandableListAdapter;
导入android.widget.TextView;
导入java.util.HashMap;
导入java.util.List;
/**
*由saravanakumars于2017年10月3日创建。
*/
公共类ExpandableListAdapter扩展了BaseExpandableListAdapter{
私人语境(private Context)(私人语境);;
私有列表_listDataHeader;//头标题
//标题标题、子标题格式的子数据
私有HashMap_listDataChild;
//ArrayListterbaru;
//ArrayList ListChildTerbaru;
//整数计数;
公共ExpandableListAdapter(上下文、列表listDataHeader、,
HashMap listChildData){
这._context=context;
这。_listDataHeader=listDataHeader;
这。_listDataChild=listChildData;
}
@凌驾
公共对象getChild(int-groupPosition、int-ChildPosition){
返回此。_listDataChild.get(此。_listDataHeader.get(groupPosition))
.get(childpositionon);
}
@凌驾
公共长getChildId(int-groupPosition,int-childPosition){
返回子位置;
}
@凌驾
公共视图getChildView(int groupPosition,final int childPosition,
布尔值isLastChild、视图转换视图、视图组父级){
最终字符串childText=(字符串)getChild(groupPosition,childPosition);
if(convertView==null){
LayoutInflater infalInflater=(LayoutInflater)this.\u上下文
.getSystemService(上下文布局\充气机\服务);
convertView=infalInflater.充气(R.layout.list_项,空);
}
TextView txtListChild=(TextView)convertView
.findviewbyd(R.id.lblListItem);
setText(childText);
返回视图;
}
@凌驾
公共整数getChildrenCount(整数组位置){
返回此。_listDataChild.get(此。_listDataHeader.get(groupPosition))
.size();
}
@凌驾
公共对象getGroup(int-groupPosition){
返回此。\u listDataHeader.get(groupPosition);
}
@凌驾
public int getGroupCount(){
返回此值。_listDataHeader.size();
}
@凌驾
公共长getGroupId(int-groupPosition){
返回组位置;
}
@凌驾
公共视图getGroupView(int-groupPosition,布尔值isExpanded,
视图(视图、视图组父级){
字符串头文件=(字符串)getGroup(groupPosition);
if(convertView==null){
LayoutInflater infalInflater=(LayoutInflater)this.\u上下文
.getSystemService(上下文布局\充气机\服务);
convertView=infalInflater.充气(R.layout.list_组,空);
}
TextView lblistheader=(TextView)convertView
.findviewbyd(R.id.lblistheader);
lblListHeader.setTypeface(null,Typeface.BOLD);
lblListHeader.setText(标题);
返回视图;
}
@凌驾
公共布尔表ID(){
返回false;
}
@凌驾
公共布尔值isChildSelectable(int-groupPosition,int-childPosition){
返回true;
}
}
MainActivity.java
package com.example.saravanakumars.expandable_listview;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ExpandableListView;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class MainActivity extends AppCompatActivity{
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
String s1 = "CLASIFICACION";
String s2 = "ONE PIECE";
String s3 = "159-OP SHERIDAN";
private String TAG = MainActivity.class.getSimpleName();
private ProgressDialog pDialog;
private static String url = "http://113.193.30.155/MobileService/MobileService.asmx/GetPartbyProcessFamilyModel";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// expListView = (ExpandableListView) findViewById(R.id.lvExp);
//
// // preparing list data
// prepareListData();
//
// listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
//
// // setting list adapter
// expListView.setAdapter(listAdapter);
new ExecuteTask().execute(s1, s2, s3);
}
/*
* Preparing the list data
// */
// private void prepareListData() {
// listDataHeader = new ArrayList<String>();
// listDataChild = new HashMap<String, List<String>>();
//
// // Adding child data
// listDataHeader.add("Defect");
// listDataHeader.add("Production");
// listDataHeader.add("Report");
//
// // Adding child data
// List<String> Defect = new ArrayList<String>();
// Defect.add("Defect-1");
// Defect.add("Defect-2");
// Defect.add("Defect-3");
// Defect.add("Defect-4");
// Defect.add("Defect-5");
//
//
// List<String> Production = new ArrayList<String>();
// Production.add("Production-1");
// Production.add("Production-2");
// Production.add("Production-3");
// Production.add("Production-4");
// Production.add("Production-5");
//
//
// List<String> Report = new ArrayList<String>();
// Report.add("Report-1");
// Report.add("Report-2");
// Report.add("Report-3");
// Report.add("Report-4");
// Report.add("Report-5");
//
// listDataChild.put(listDataHeader.get(0), Defect); // Header, Child data
// listDataChild.put(listDataHeader.get(1), Production);
// listDataChild.put(listDataHeader.get(2), Report);
// }
class ExecuteTask extends AsyncTask<String, Integer, String> {
@Override
protected String doInBackground(String... params) {
String res = PostData(params);
return res;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
// Toast.makeText(getApplicationContext(),
// result,Toast.LENGTH_LONG)
// .show();
fetchResponse(result.replace("\n", "").trim());
pDialog.dismiss();
}
private void fetchResponse(String result) {
if (!result.equals("")) {
try {
JSONArray jsonArray = new JSONArray(result);
expListView = (ExpandableListView) findViewById(R.id.lvExp);
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("SHIFT_DATE");
listDataHeader.add("PART_ID");
listDataHeader.add("PLAN_QTY");
// Adding child data
List<String> SHIFT_DATE = new ArrayList<String>();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
jsonObject = jsonArray.getJSONObject(i);
SHIFT_DATE.add(jsonObject.getString("SHIFT_DATE"));
}
List<String> PART_ID = new ArrayList<String>();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject1 = jsonArray.getJSONObject(i);
jsonObject1 = jsonArray.getJSONObject(i);
PART_ID.add(jsonObject1.getString("PART_ID"));
}
List<String> PLAN_QTY = new ArrayList<String>();
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject2 = jsonArray.getJSONObject(i);
jsonObject2 = jsonArray.getJSONObject(i);
PLAN_QTY.add(jsonObject2.getString("PLAN_QTY"));
}
listDataChild.put(listDataHeader.get(0), SHIFT_DATE); // Header, Child data
listDataChild.put(listDataHeader.get(1), PART_ID);
listDataChild.put(listDataHeader.get(2), PLAN_QTY);
//
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
public String PostData(String[] valuse) {
String s = "";
try {
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost("http://113.193.30.155/MobileService/MobileService.asmx/GetPartbyProcessFamilyModel");
List<BasicNameValuePair> list = new ArrayList<BasicNameValuePair>();
list.add(new BasicNameValuePair("strProcess", s1));
list.add(new BasicNameValuePair("strFamily", s2));
list.add(new BasicNameValuePair("strModel", s3));
httpPost.setEntity(new UrlEncodedFormEntity(list));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
s = readResponse(httpResponse);
// HttpEntity entity = httpResponse.getEntity();
//
// s = EntityUtils.toString(entity);
} catch (Exception exception) {
}
return s;
}
public String readResponse(HttpResponse res) {
InputStream is = null;
String return_text = "";
try {
is = res.getEntity().getContent();
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is));
String line = "";
StringBuffer sb = new StringBuffer();
while ((line = bufferedReader.readLine()) != null) {
sb.append(line);
}
return_text = sb.toString();
} catch (Exception e) {
}
return return_text;
}
}
}
package com.example.saravanakumars.expandable_listview;
导入android.app.ProgressDialog;
导入android.os.AsyncTask;
导入android.os.Bundle;
导入android.support.v7.app.AppActivity;
导入android.widget.ExpandableListView;
导入org.apache.http.HttpEntity;
导入org.apache.http.HttpResponse;
导入org.apache.http.client.HttpClient;
导入org.apache.http.client.entity.UrlEncodedFormEntity;
导入org.apache.http.client.methods.HttpPost;
导入org.apache.http.impl.client.DefaultHttpClient;
导入org.apache.http.message.BasicNameValuePair;
导入org.json.JSONArray;
导入org.json.JSONException;
导入org.json.JSONObject;
导入java.io.BufferedReader;
导入java.io.InputStream;
导入java.io.InputStreamReader;
导入java.util.ArrayList;
导入java.util.HashMap;
导入java.util.List;
公共类MainActivity扩展了AppCompatActivity{
可扩展列表适配器;
ExpandableListView解释视图;
列表列表数据头;
HashMapListDataChild;
字符串s1=“CLASIFICACION”;
字符串s2=“一件”;
字符串s3=“159-OP SHERIDAN”;
私有字符串标记=MainActivity.class.getSimpleName();
私人对话;
专用静态字符串url=”http://113.193.30.155/MobileService/MobileService.asmx/GetPartbyProcessFamilyModel";
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//expListView=(ExpandableListView)findViewById(R.id.lvExp);
//
////准备列表数据
//prepareListData();
//
//listAdapter=新的ExpandableListAdapter(此,listDataHeader,listDataChild);
//
////设置列表适配器
//expListView.setAdapter(listAdapter);
新的ExecuteTask().execute(s1、s2、s3);
}
/*
*准备列表数据
// */
//私有void prepareListData(){
//listDataHeader=新的ArrayList();
//listDataChild=newHashMap();
//
////添加子数据
//添加(“缺陷”);
//添加(“生产”);
//添加(“报告”);
//
////添加子数据
//列表缺陷=新的ArrayList();
//缺陷。添加(“缺陷-1”);
//缺陷。添加(“缺陷-2”);
//缺陷。
listAdapter = new ExpandableListAdapter(this,listDataHeader,listDataChild);
listAdapter = new ExpandableListAdapter(MainActivity.this, listDataHeader, listDataChild);