问题：
从 Web 服务获取的数据显示在列表视图中，然后根据列表中的项目对列表视图自定义适配器进行排序
钱劲
在我的列表视图中有5个数据，但基于Km距离双值，按升序对完整列表视图进行排序。从Webservice获取的所有数据。在列表视图中显示数据正常工作，但只有最后一行数据显示在完整列表中如何解决？
package com.example;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import org.json.JSONArray;
import org.json.JSONObject;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.app.ActivityOptions;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.media.Rating;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.Settings;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.RatingBar;
import android.widget.TextView;
import android.widget.Toast;
public class Find_Stores_1_Distance_Based_Tabview1 extends Fragment implements OnClickListener {
ListView listPage;
Button Near_Me, Top_Service, Rating_Based, Add_ServiceCenter;
View rootView;
int[] images = {
R.drawable.shop1,R.drawable.shop2,R.drawable.shop1,
R.drawable.shop1,R.drawable.shop2,R.drawable.shop1,
R.drawable.shop1,R.drawable.shop2,R.drawable.shop1}
Rating rateme;
float ratingValue = 2.0f;
String ServiceModel = " Phone ";
// for WebService Fetch from web to Find stores ..
private static final String SOAP_ACTION = "************";
private static final String NAMESPACE = "************";
private static final String URL = "************";
private static final String METHOD_NAME = "************";
private String TAG2 = "************";
public static String Status_Response_FindStores_Landing = "";
// for WebService Fetch from web to Find stores ..
private static final String SOAP_ACTION1 = ""************"";
private static final String NAMESPACE1 = ""************"";
private static final String URL1 = ""************"";
private static final String METHOD_NAME1 = ""************"";
private String TAG3 = ""************"";
public static String Status_Res_FindStores_Showpage_Data = "";
public String Center_id,Brand_name, ServiceCenterName,Address1,EMailId,ContactNumber,Pincode,Cityname,Latitude1,Longitude1;
public String Center_id2,Brand_name2, ServiceCenterName2,Address2,EMailId2,ContactNumber2,Pincode2,Cityname2;
// flag for Internet connection status
Boolean isInternetPresent = false;
// Connection detector class
InternetConnectionDetector cd1;
// Progress Bar
ProgressBar pg;
private ProgressDialog progress;
String[] SERVICE_CENTERNAME,Full_ADDRESS,CENTER_ID;
String[] KM_DISTANCE_StringArray;
TextView CenterIDText;
public String CategoryStringItem,BrandStringItem,CityStringItem;
public TextView NotfoundText1;
public Button ReloadButton1;
public String centerId_Service,LatitudeSingle_Service,LangitudeSingle_Service;
public String Latittude_LogitutdeString;
double latitude_Current, longitude_current;
// public Float distance;
public double distance1;
GPSTracker gps;
boolean _areLecturesLoaded = false;
//For Creating Double array;
String[] LatitudeArray,LangitudeArray;
public static int StatusoutPutInteger1;
//For Ascending Order Sort
private boolean mAscendingOrder[] = {true, true, true};
private ItemsListAdapter mAdapter;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.find_stores_1_distancebased_tabview1,container, false);
// creating connection Detector class for checking Internet Status
cd1 = new InternetConnectionDetector(getActivity());
// create class object
gps = new GPSTracker(getActivity());
// call the views with this layout
listPage = (ListView) rootView.findViewById(R.id.listView123);
mAdapter = new ItemsListAdapter();
// ((ListView) rootView.findViewById(R.id.listView123)).setAdapter(mAdapter);
listPage.setAdapter(mAdapter);
// fillShoppingList();
return rootView;
}
public void onResume()
{
try {
super.onResume();
// get Internet status
isInternetPresent = cd1.isConnectingToInternet();
// check for Internet status
if (isInternetPresent)
{
// check if GPS enabled
if(gps.canGetLocation()){
latitude_Current = gps.getLatitude();
longitude_current = gps.getLongitude();
// for data Fetch from web
AsyncCallWSfor_PRODUCT task = new AsyncCallWSfor_PRODUCT();
// Call execute
task.execute();
}else{
// can't get location
// GPS or Network is not enabled
// Ask user to enable GPS/network in settings
gps.showSettingsAlert();
}
}
else
{
Toast.makeText(getActivity(),"Please Check Your Internet Connection ..!",Toast.LENGTH_SHORT).show();
}
} catch (Exception e)
{
e.printStackTrace();
Log.i("Exception in Tab1 Onresume","Error");
}
}
// for Product Web Sync
private class AsyncCallWSfor_PRODUCT extends AsyncTask<String, Void, Void> {
@Override
protected Void doInBackground(String... params)
{
Log.i(TAG2, "doInBackground");
try
{
getSignupdata1(CategoryStringItem,BrandStringItem,CityStringItem);
}
catch (Exception e)
{
// Toast.makeText(getActivity(),"error caught in do in background", Toast.LENGTH_SHORT).show();
Log.i(TAG2, "Error in Find Background");
e.printStackTrace();
}
return null;
// return null;
}
@Override
protected void onPostExecute(Void result)
{
//pg.setVisibility(View.INVISIBLE);
// To dismiss the dialog
progress.dismiss();
Log.i(TAG2, "onPostExecute");
try {
// Show items ascending
mAdapter.sortByPriceAsc();
listPage.setOnItemClickListener(new OnItemClickListener()
{
@Override public void onItemClick(AdapterView<?> arg0, View views,int position, long id)
{
try {
// get Internet status
isInternetPresent = cd1.isConnectingToInternet();
// check for Internet status
if (isInternetPresent)
// for Service Center Show page Data Fetch from web
AsyncCallWSfor_FETCHService_Center task = new AsyncCallWSfor_FETCHService_Center();
// Call execute
task.execute();
}
else
{
Toast.makeText(getActivity(),"Please Check Your Internet Connection..!",Toast.LENGTH_SHORT).show();
}
} catch (Exception e)
{
e.printStackTrace();
Log.i("Exception in Tab1 OnItemClick","Error");
}
}
});
}
} catch (Exception e) {
Log.i(TAG2, "Error in Product Insert");
//Toast.makeText(getActivity(), "Error in sucess",Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
@Override
protected void onPreExecute()
{
progress.setTitle("Progress");
progress.setMessage("Please Wait Loading...");
progress.setProgressStyle(ProgressDialog.STYLE_SPINNER);
progress.setIndeterminate(true);
progress.show();
}
@Override
protected void onProgressUpdate(Void... values) {
Log.i(TAG2, "onProgressUpdate");
}
}
public void getSignupdata1(String Categoryitem,String Branditem, String CityLocation)
{
// Create request
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
PropertyInfo pi3 = new PropertyInfo();
pi3.setName("Categ");
pi3.setValue(Categoryitem);// get the string that is to be sent to the webservice
pi3.setType(String.class);
request.addProperty(pi3);
PropertyInfo pi4 = new PropertyInfo();
pi4.setName("Band");
pi4.setValue(Branditem);// get the string that is to be sent to the webservice
pi4.setType(String.class);
request.addProperty(pi4);
PropertyInfo pi5= new PropertyInfo();
pi5.setName("City");
pi5.setValue(CityLocation);// get the string that is to be sent to the webservice
pi5.setType(String.class);
request.addProperty(pi5);
// Create envelope
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
// Set output SOAP object
envelope.setOutputSoapObject(request);
// Create HTTP call object
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
try {
// Invole web service
androidHttpTransport.call(SOAP_ACTION, envelope);
// Get the response
SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
if ((response.toString()).contains("{"))
{
// JSONArray jr = new JSONArray(response);
SoapObject rep = (SoapObject) envelope.bodyIn;
JSONArray jr = new JSONArray(rep.getPropertyAsString(0));
for (int i = 0; i < jr.length(); i++)
{
JSONObject jb = (JSONObject) jr.get(i);
Center_id = jb.getString("CenterId");
Brand_name = jb.getString("Brand");
ServiceCenterName = jb.getString("Center");
Address1 = jb.getString("Add");
EMailId = jb.getString("mail");
ContactNumber = jb.getString("Contact");
Pincode = jb.getString("PinCode");
Cityname = jb.getString("City");
Latitude1=jb.getString("latitude");
Longitude1=jb.getString("longitude");
double latitude_Doublevalue = Double.parseDouble(Latitude1);
double longitude_Doublevalue = Double.parseDouble(Longitude1);
try
{
Location locationA = new Location("point A");
locationA.setLatitude(latitude_Current);
locationA.setLongitude(longitude_current);
Location locationB = new Location("point B");
locationB.setLatitude(latitude_Doublevalue);
locationB.setLongitude(longitude_Doublevalue);
// distance = locationA.distanceTo(locationB)/1000;//Distance in Kilometers
distance1 = locationA.distanceTo(locationB)/1000;
Log.i("Service_CenterNameStringOutput","Out "+ServiceCenterName);
Log.i("AddressStringOutput","Out "+Address1);
Log.i("DistanceStringOutput","Out "+distance1);
}
catch(Exception ex)
{
ex.printStackTrace();
Log.i(TAG2, "Error in Distance Calculate");
}
getActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
fillShoppingList(Address1,ServiceCenterName,distance1);
}
});
// Log.i("CenterIdssss", Center_id);
}
}
else
{
Status_Response_FindStores_Landing = response.toString();
}
} catch (Exception e) {
Log.i(TAG2, "Error in Signup1 catch");
e.printStackTrace();
}
}
//GPS Enabler
public void showSettingsAlert() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(
getActivity());
alertDialog.setTitle("Settings");
alertDialog.setMessage("Enable Location Provider! Go to settings menu?");
alertDialog.setPositiveButton("Settings",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS);
getActivity().startActivity(intent);
}
});
alertDialog.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertDialog.show();
}
private void fillShoppingList(String address12, String serviceCenterName3, double distance12string )
{
SortAscendingClass item = new SortAscendingClass();
item.setAddressArray(address12);
item.setCmpy_NameArray(serviceCenterName3);
item.setDistancekmArray(distance12string);
mAdapter.addItem(item);
//mAdapter.sortByPriceAsc();
}
/** Adapter for the shopping list items */
private class ItemsListAdapter extends BaseAdapter {
private LayoutInflater vi;
private ArrayList<SortAscendingClass> shoppingList = new ArrayList<SortAscendingClass>();
public ItemsListAdapter()
{
vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
/** Add white line */
public void addItem(SortAscendingClass item) {
shoppingList.add(item);
notifyDataSetChanged();
}
/** Sort shopping list by price ascending */
public void sortByPriceAsc() {
Comparator<SortAscendingClass> comparator = new Comparator<SortAscendingClass>() {
@Override
public int compare(SortAscendingClass object1, SortAscendingClass object2) {
return Double.compare(object1.getDistancekmArray(), object2.getDistancekmArray());
}
};
Collections.sort(shoppingList, comparator);
notifyDataSetChanged();
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
convertView = vi.inflate(R.layout.findstores_service_center_tabview1_2_3_listview, null);
holder.myImage = (ImageView) convertView.findViewById(R.id.imageView1);
holder.ServcieCenterFullname = (TextView) convertView.findViewById(R.id.textView1);
holder.AddressName = (TextView) convertView.findViewById(R.id.textView2);
holder.ratingtext = (RatingBar)convertView.findViewById(R.id.ratingBarinTabs);
holder.myDistance = (TextView) convertView.findViewById(R.id.Distance);
holder.SErvice_Available = (TextView) convertView.findViewById(R.id.serviceCategory);
/*holder.CenterIDText=(TextView)convertView.findViewById(R.id.CenterId_xml);
holder.LatitudeText=(TextView)convertView.findViewById(R.id.latitude_xml);
holder.LangitudeText=(TextView)convertView.findViewById(R.id.langitude_xml);*/
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
holder.myImage.setImageResource(images[position]);
holder.ServcieCenterFullname.setText(String.valueOf(shoppingList.get(position).getCmpy_NameArray()));
holder.AddressName.setText(String.valueOf(shoppingList.get(position).getAddressArray()));
holder.ratingtext.setRating(ratingValue); // to set rating value
holder.myDistance.setText(String.valueOf(shoppingList.get(position).getDistancekmArray()+" Km"));
holder.SErvice_Available.setText(ServiceModel);
return convertView;
}
@Override
public int getCount() {
return shoppingList.size();
}
@Override
public Object getItem(int position) {
return shoppingList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
/** Helper class acting as a holder of the information for each row */
private class ViewHolder {
/*public TextView name;
public TextView price;
public TextView quantity;*/
public ImageView myImage;
public TextView ServcieCenterFullname;
public TextView AddressName ;
public RatingBar ratingtext ;
public TextView myDistance;
public TextView SErvice_Available;
public TextView CenterIDText;
public TextView LatitudeText;
public TextView LangitudeText;
}
}
}
共有3个答案
淳于坚壁
使用< code>ArrayAdapter，按整数对与< code>adapter关联的数组中的元素进行排序，并将< code>adapter链接到您的listView。
柳英豪
您可以对支持listview的适配器进行排序，ListView将自动排序。
欧阳声
您还可以使用Collections和ArrayList按以下方式进行排序。
Collections.sort(YourArrayList);
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