Json listview doldurma sorunu ...
Sorunumuz şu; listview'e json ile verileri parse edip alıyoruz yukarı bölümde olusturdugumuz search bar'ında arama yaptığımız zaman loga dogru sonucu vermesine rağmen listview'i yanlış şekilde dolduruyor. Örneğin; listview 5 veriyle başlangıcta doluyor arama yerine istediğimiz şeyi yazdıktan sonra mesela 1 sonuc buluyor. 1 sonuç bulduğunu loga doğru şekilde 1 olarak yazıyor fakat listview'de 1 tane sadece o veriyi getirmesi gerekirken daha önce olusturgu 5 verili listview'in tüm yerlerini buldugu 1 veriyle dolduruyor.
Bu sorunu nasıl çözebiliriz.
Kodumuz aşağıdaki şekilde. listview oluşturmakta sıkıntı olmadığı için xml'i yazmadım.
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.util.LangUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ListActivity;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.SearchView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
public class restorantAltSayfa extends ListActivity {
ListView listView;
ArrayList<String> x = new ArrayList<String>();
ArrayList<String> y = new ArrayList<String>();
ArrayList<String> z = new ArrayList<String>();
ArrayList<String> t = new ArrayList<String>();
ArrayList<String> aramaVerileri = new ArrayList<String>();
ArrayList<String> values = new ArrayList<String>();
ArrayList<String> sonuclar = new ArrayList<String>();
ArrayList<String> phoneArray = new ArrayList<String>();
ArrayList<String> addressArray = new ArrayList<String>();
public static String a="";
public static String b="";
public static String c="";
public static String d="";
public static String e="";
public static boolean kontrol = false;
public int sayac;
public static HashMap<String, Object> searchHM = new HashMap<String, Object>();
public static String strUrl = "http://www.bervamimarlik.com/restorant.php";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.restorant_altsayfa);
// URL to the JSON data
//String strUrl = "http://www.bervamimarlik.com/restorant.php";
// Creating a new non-ui thread task to download json data
DownloadTask downloadTask = new DownloadTask();
// Starting the download process
downloadTask.execute(strUrl);
// Getting a reference to ListView of activity_main
listView = (ListView) findViewById(android.R.id.list);
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String name = ((TextView) view.findViewById(R.id.name)).getText().toString();
String phone = ((TextView) view.findViewById(R.id.phone)).getText().toString();
döngü:for(int counter = 0; counter<sayac; counter++){
if(name.equals(x.get(counter))){
a=y.get(counter);
b=z.get(counter);
c=t.get(counter);
break döngü;
}
}
// Starting single contact activity
Intent in = new Intent(getApplicationContext(),
SingleContactActivity.class);
in.putExtra("Name", name);
in.putExtra("Phone", phone);
in.putExtra("Description", a);
in.putExtra("Image", b);
in.putExtra("coordinate", c);
startActivity(in);
}
});
Button buttonSearch =(Button)findViewById(R.id.button1);
buttonSearch.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
EditText edt = (EditText)findViewById(R.id.editText1);
String labelData = edt.getText().toString();//casita
search: for(int i= 0; i<sayac; i++){
d = aramaVerileri.get(i); //casita/taksim/restorant
String[] sonuc = d.split("/"); //casita taksim restorant
for(int say=0; say<sonuc.length; say++){
String part = sonuc[say]; //casita
if(part.equals(labelData)){
e=y.get(i); //30001
sonuclar.add(e); //30001 i sonuclara ekle
continue search;
}//end if
}//end inner for
}//end out for
String bulunanId = "";
String eslenenId = "";
String eslenenName = "";
String eslenenImage = "";
String eslenenPhone = "";
String eslenenAddress = "";
for(int sayBeni = 0; sayBeni<sonuclar.size(); sayBeni++){
bulunanId = sonuclar.get(sayBeni);//30001
loop:for(int sayBeniInner =0; sayBeniInner<sayac; sayBeniInner++){
eslenenId = y.get(sayBeniInner);
if(eslenenId.equals(bulunanId)){
eslenenName = x.get(sayBeniInner);
eslenenImage = z.get(sayBeniInner);
eslenenPhone = phoneArray.get(sayBeniInner);
eslenenAddress = addressArray.get(sayBeniInner);
searchHM.put("Name", eslenenName);
searchHM.put("image", R.drawable.appicon);
searchHM.put("image_path", eslenenImage);
searchHM.put("Phone", eslenenPhone);
searchHM.put("Address", eslenenAddress);
Log.w("BULDUUUUU", eslenenName);
break loop;
}//end if
}//end inner for
}// end out for
kontrol=true;
listView.setAdapter(null);
DownloadTask downloadTask = new DownloadTask();
downloadTask.execute(strUrl);
}//end onClick
});
}
/** A method to download json data from url */
private String downloadUrl(String strUrl) throws IOException{
String data = "";
InputStream iStream = null;
try{
URL url = new URL(strUrl);
// Creating an http connection to communicate with url
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(iStream));
StringBuffer sb = new StringBuffer();
String line = "";
while( ( line = br.readLine()) != null){
sb.append(line);
}
data = sb.toString();
br.close();
}catch(Exception e){
Log.d("Exception while downloading url", e.toString());
}finally{
iStream.close();
}
return data;
}
/** AsyncTask to download json data */
private class DownloadTask extends AsyncTask<String, Integer, String>{
String data = null;
@Override
protected String doInBackground(String... url) {
try{
data = downloadUrl(url[0]);
}catch(Exception e){
Log.d("Background Task",e.toString());
}
return data;
}
@Override
protected void onPostExecute(String result) {
// The parsing of the xml data is done in a non-ui thread
ListViewLoaderTask listViewLoaderTask = new ListViewLoaderTask();
// Start parsing xml data
listViewLoaderTask.execute(result);
}
}
/** AsyncTask to parse json data and load ListView */
private class ListViewLoaderTask extends AsyncTask<String, Void, SimpleAdapter>{
JSONObject jObject;
// Doing the parsing of xml data in a non-ui thread
@Override
protected SimpleAdapter doInBackground(String... strJson) {
try{
jObject = new JSONObject(strJson[0]);
CountryJSONParser countryJsonParser = new CountryJSONParser();
countryJsonParser.parse(jObject);
}catch(Exception e){
Log.d("JSON Exception1",e.toString());
}
// Instantiating json parser class
CountryJSONParser countryJsonParser = new CountryJSONParser();
// A list object to store the parsed countries list
List<HashMap<String, Object>> datas = null;
try{
// Getting the parsed data as a List construct
datas = countryJsonParser.parse(jObject);
}catch(Exception e){
Log.d("Exception",e.toString());
}
String[] from = { "Name","image","Phone", "Address","StarImage1","StarImage2","StarImage3","StarImage4","StarImage5"};
int[] to = { R.id.name,R.id.imageView1,R.id.phone,R.id.adress,R.id.cost1,R.id.cost2,R.id.cost3,R.id.cost4,R.id.cost5};
// Instantiating an adapter to store each items
// R.layout.listview_layout defines the layout of each item
SimpleAdapter adapter = new SimpleAdapter(getBaseContext(), datas, R.layout.list, from, to);
kontrol=false;
return adapter;
}
/** Invoked by the Android on "doInBackground" is executed */
@Override
protected void onPostExecute(SimpleAdapter adapter) {
// Setting adapter for the listview
listView.setAdapter(null);
adapter.notifyDataSetChanged();
listView.setAdapter(adapter);
for(int i=0;i<adapter.getCount();i++){
HashMap<String, Object> hm = (HashMap<String, Object>) adapter.getItem(i);
String imgUrl = (String) hm.get("image_path");
ImageLoaderTask imageLoaderTask = new ImageLoaderTask();
HashMap<String, Object> hmDownload = new HashMap<String, Object>();
hm.put("image_path",imgUrl);
hm.put("position", i);
// Starting ImageLoaderTask to download and populate image in the listview
imageLoaderTask.execute(hm);
}
}
}
/** AsyncTask to download and load an image in ListView */
private class ImageLoaderTask extends AsyncTask<HashMap<String, Object>, Void, HashMap<String, Object>>{
@Override
protected HashMap<String, Object> doInBackground(HashMap<String, Object>... hm) {
InputStream iStream=null;
String imgUrl = (String) hm[0].get("image_path");
int position = (Integer) hm[0].get("position");
URL url;
try {
url = new URL(imgUrl);
// Creating an http connection to communicate with url
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
// Connecting to url
urlConnection.connect();
// Reading data from url
iStream = urlConnection.getInputStream();
// Getting Caching directory
File cacheDirectory = getBaseContext().getCacheDir();
// Temporary file to store the downloaded image
File tmpFile = new File(cacheDirectory.getPath() + "/wpta_"+position+".png");
tmpFile.getParentFile().mkdirs();
// The FileOutputStream to the temporary file
FileOutputStream fOutStream = new FileOutputStream(tmpFile);
// Creating a bitmap from the downloaded inputstream
Bitmap b = BitmapFactory.decodeStream(iStream);
// Writing the bitmap to the temporary file as png file
b.compress(Bitmap.CompressFormat.PNG,100, fOutStream);
// Flush the FileOutputStream
fOutStream.flush();
//Close the FileOutputStream
fOutStream.close();
// Create a hashmap object to store image path and its position in the listview
HashMap<String, Object> hmBitmap = new HashMap<String, Object>();
// Storing the path to the temporary image file
hmBitmap.put("image",tmpFile.getPath());
// Storing the position of the image in the listview
hmBitmap.put("position",position);
// Returning the HashMap object containing the image path and position
return hmBitmap;
}catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(HashMap<String, Object> result) {
// Getting the path to the downloaded image
String path = (String) result.get("image");
// Getting the position of the downloaded image
int position = (Integer) result.get("position");
// Getting adapter of the listview
SimpleAdapter adapter = (SimpleAdapter ) listView.getAdapter();
// Getting the hashmap object at the specified position of the listview
HashMap<String, Object> hm = (HashMap<String, Object>) adapter.getItem(position);
// Overwriting the existing path in the adapter
hm.put("image",path);
// Noticing listview about the dataset changes
adapter.notifyDataSetChanged();
}
}
//////////////////////////////////////////////
public class CountryJSONParser {
// Receives a JSONObject and returns a list
public List<HashMap<String,Object>> parse(JSONObject jObject){
JSONArray jCountries = null;
try {
// Retrieves all the elements in the 'countries' array
jCountries = jObject.getJSONArray("restorantTable");
} catch (JSONException e) {
e.printStackTrace();
}
// Invoking getCountries with the array of json object
// where each json object represent a country
return getCountries(jCountries);
}
private List<HashMap<String, Object>> getCountries(JSONArray jCountries){
int countryCount = jCountries.length();
sayac = countryCount;
List<HashMap<String, Object>> countryList = new ArrayList<HashMap<String,Object>>();
HashMap<String, Object> country = null;
// Taking each country, parses and adds to list object
for(int i=0; i<countryCount;i++){
try {
// Call getCountry with country JSON object to parse the country
country = getCountry((JSONObject)jCountries.get(i));
countryList.add(country);
} catch (JSONException e) {
e.printStackTrace();
}
}
return countryList;
}
// Parsing the Country JSON object
private HashMap<String, Object> getCountry(JSONObject jCountry){
HashMap<String, Object> country = new HashMap<String, Object>();
String acilName = "";
String image="";
String phone = "";
String address="";
String description = "";
String stardata = "";
String coordinate = "";
String search = "";
String id = "";
try {
acilName = jCountry.getString("restorantName");
image = jCountry.getString("images");
phone = jCountry.getString("restorantPhone");
address = jCountry.getString("restorantSemt");
stardata = jCountry.getString("restorantCost");
coordinate = jCountry.getString("restorantCoordinates");
search = jCountry.getString("restorantSearch");
id = jCountry.getString("restorantId");
String details = phone ;
if(stardata.equals("1")){
country.put("StarImage1", R.drawable.dollar);
country.put("StarImage2", R.drawable.dollarempty);
country.put("StarImage3", R.drawable.dollarempty);
country.put("StarImage4", R.drawable.dollarempty);
country.put("StarImage5", R.drawable.dollarempty);
}else if(stardata.equals("2")) {
country.put("StarImage1", R.drawable.dollar);
country.put("StarImage2", R.drawable.dollar);
country.put("StarImage3", R.drawable.dollarempty);
country.put("StarImage4", R.drawable.dollarempty);
country.put("StarImage5", R.drawable.dollarempty);
}else if(stardata.equals("3")) {
country.put("StarImage1", R.drawable.dollar);
country.put("StarImage2", R.drawable.dollar);
country.put("StarImage3", R.drawable.dollar);
country.put("StarImage4", R.drawable.dollarempty);
country.put("StarImage5", R.drawable.dollarempty);
}else if(stardata.equals("4")) {
country.put("StarImage1", R.drawable.dollar);
country.put("StarImage2", R.drawable.dollar);
country.put("StarImage3", R.drawable.dollar);
country.put("StarImage4", R.drawable.dollar);
country.put("StarImage5", R.drawable.dollarempty);
}else {
country.put("StarImage1", R.drawable.dollar);
country.put("StarImage2", R.drawable.dollar);
country.put("StarImage3", R.drawable.dollar);
country.put("StarImage4", R.drawable.dollar);
country.put("StarImage5", R.drawable.dollar);
}
country.put("Name", acilName);
country.put("image", R.drawable.appicon);
country.put("image_path", image);
country.put("Phone", phone);
country.put("Address", address);
x.add(acilName);
y.add(id);
z.add(image);
t.add(coordinate);
aramaVerileri.add(search);
phoneArray.add(phone);
addressArray.add(address);
} catch (JSONException e) {
e.printStackTrace();
} if(kontrol==false){
return country;
} else{
return searchHM;
}
}
}
}
