我正在做一个项目，我从JSON填充Listview。
JSON iam传递工作完美，我的列表视图正确显示所有列表值但是当我点击10/12列表后的任何列表时出现问题，我得到的值从第一个开始重复。
不会检索相应的值。
我也就此问题对其他帖子进行了评审，但现在解决了我的问题。
以下是我的代码。我希望有人会找到解决方案。
package com.desitv.geojoy;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.actionbarsherlock.app.SherlockFragment;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import com.actionbarsherlock.widget.SearchView;
import com.desitv.geojoy.R;
import com.desitv.geojoy.adapter.LatestGridAdapter;
import com.desitv.geojoy.item.ItemLatest;
import com.desitv.geojoy.util.AlertDialogManager;
import com.desitv.geojoy.util.Constant;
import com.desitv.geojoy.util.JsonUtils;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;
public class LatestFragment extends SherlockFragment {
ListView lsv_latest;
List<ItemLatest> arrayOfLatestMusic;
LatestGridAdapter objAdapter;
AlertDialogManager alert = new AlertDialogManager();
ArrayList<String> allListImageUrl,allListChannelCatName;
ArrayList<String> allListChannelId,allListChannelCatId,allListChannelUrl,allListChannelName,allListChannelDesc;
String[] allArrayImage,allArrayChannelCatName;
String[] allArrayChannelId,allArrayChannelCatId,allArrayChannelurl,allArrayChannelName,allArrayChannelDesc;
private ItemLatest objAllBean;
private int columnWidth;
JsonUtils util;
int textlength = 0;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View rootView = inflater.inflate(R.layout.fragment_latest, container, false);
setHasOptionsMenu(true);
lsv_latest=(ListView)rootView.findViewById(R.id.lsv_latest);
arrayOfLatestMusic=new ArrayList<ItemLatest>();
allListImageUrl=new ArrayList<String>();
allListChannelCatName=new ArrayList<String>();
allListChannelCatId=new ArrayList<String>();
allListChannelId=new ArrayList<String>();
allListChannelName=new ArrayList<String>();
allListChannelUrl=new ArrayList<String>();
allListChannelDesc=new ArrayList<String>();
allArrayImage=new String[allListImageUrl.size()];
allArrayChannelCatName=new String[allListChannelCatName.size()];
allArrayChannelId=new String[allListChannelId.size()];
allArrayChannelCatId=new String[allListChannelCatId.size()];
allArrayChannelurl=new String[allListChannelUrl.size()];
allArrayChannelName=new String[allListChannelName.size()];
allArrayChannelDesc=new String[allListChannelDesc.size()];
util=new JsonUtils(getActivity());
if (JsonUtils.isNetworkAvailable(getActivity())) {
new MyTask().execute(Constant.LATEST_URL);
} else {
showToast("No Network Connection!!!");
alert.showAlertDialog(getActivity(), "Internet Connection Error",
"Please connect to working Internet connection", false);
}
lsv_latest.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
// TODO Auto-generated method stub
objAllBean=arrayOfLatestMusic.get(position);
int pos=objAllBean.getId();
Intent intplay=new Intent(getActivity(),TvDetails.class);
intplay.putExtra("POSITION", pos);
intplay.putExtra("CHANNEL_IMAGE", allArrayImage);
intplay.putExtra("CHANNEL_CATNAME", allArrayChannelCatName);
intplay.putExtra("CHANNEL_CATID", allArrayChannelCatId);
intplay.putExtra("CHANNEL_URL", allArrayChannelurl);
intplay.putExtra("CHANNEL_NAME", allArrayChannelName);
intplay.putExtra("CHANNEL_CID", allArrayChannelId);
intplay.putExtra("CHANNEL_DISCRIPTION", allArrayChannelDesc);
startActivity(intplay);
}
});
return rootView;
}
private class MyTask extends AsyncTask<String, Void, String> {
ProgressDialog pDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Loading...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected String doInBackground(String... params) {
return JsonUtils.getJSONString(params[0]);
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if (null != pDialog && pDialog.isShowing()) {
pDialog.dismiss();
}
if (null == result || result.length() == 0) {
showToast("Server Connection Error");
alert.showAlertDialog(getActivity(), "Server Connection Error",
"May Server Under Maintaines Or Low Network", false);
} else {
try {
JSONObject mainJson = new JSONObject(result);
JSONArray jsonArray = mainJson.getJSONArray(Constant.LATEST_ARRAY_NAME);
JSONObject objJson = null;
for (int i = 0; i < jsonArray.length(); i++) {
objJson = jsonArray.getJSONObject(i);
ItemLatest objItem = new ItemLatest();
objItem.setId(objJson.getInt(Constant.CHANNEL_ID));
objItem.setCategoryId(objJson.getInt(Constant.CHANNEL_CATID));
objItem.setCategoryName(objJson.getString(Constant.CHANNEL_CAT_NAME));
objItem.setChannelName(objJson.getString(Constant.LATEST_CHANNEL_NAME));
objItem.setChannelUrl(objJson.getString(Constant.lATETST_CHANNEL_URL));
objItem.setDescription(objJson.getString(Constant.LATEST_CHANNEL_DESCRIPTION));
objItem.setImage(objJson.getString(Constant.LATEST_CHANNEL_IMAGE));
arrayOfLatestMusic.add(objItem);
}
} catch (JSONException e) {
e.printStackTrace();
}
for(int j=0;j<arrayOfLatestMusic.size();j++)
{
objAllBean=arrayOfLatestMusic.get(j);
allListImageUrl.add(objAllBean.getImage());
allArrayImage=allListImageUrl.toArray(allArrayImage);
allListChannelCatName.add(objAllBean.getCategoryName());
allArrayChannelCatName=allListChannelCatName.toArray(allArrayChannelCatName);
allListChannelId.add(String.valueOf(objAllBean.getId()));
allArrayChannelId=allListChannelId.toArray(allArrayChannelId);
allListChannelCatId.add(String.valueOf(objAllBean.getCategoryId()));
allArrayChannelCatId=allListChannelCatId.toArray(allArrayChannelCatId);
allListChannelUrl.add(String.valueOf(objAllBean.getChannelUrl()));
allArrayChannelurl=allListChannelUrl.toArray(allArrayChannelurl);
allListChannelName.add(String.valueOf(objAllBean.getChannelName()));
allArrayChannelName=allListChannelName.toArray(allArrayChannelName);
allListChannelDesc.add(objAllBean.getDescription());
allArrayChannelDesc=allListChannelDesc.toArray(allArrayChannelDesc);
}
setAdapterToListview();
}
}
}
public void setAdapterToListview() {
objAdapter = new LatestGridAdapter(getActivity(), R.layout.latest_lsv_item,
arrayOfLatestMusic,columnWidth);
lsv_latest.setAdapter(objAdapter);
}
public void showToast(String msg) {
Toast.makeText(getActivity(), msg, Toast.LENGTH_LONG).show();
}
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.menu_search, menu);
final SearchView searchView = (SearchView) menu.findItem(R.id.search)
.getActionView();
final MenuItem searchMenuItem = menu.findItem(R.id.search);
searchView.setOnQueryTextFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
// TODO Auto-generated method stub
if(!hasFocus) {
searchMenuItem.collapseActionView();
searchView.setQuery("", false);
}
}
});
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextChange(String newText) {
textlength=newText.length();
arrayOfLatestMusic.clear();
for(int i=0;i< allArrayChannelName.length;i++)
{
if(textlength <= allArrayChannelName[i].length())
{
if(newText.toString().equalsIgnoreCase((String) allArrayChannelName[i].subSequence(0, textlength)))
{
ItemLatest objItem = new ItemLatest();
objItem.setId(Integer.parseInt(allArrayChannelId[i]));
objItem.setCategoryId(Integer.parseInt(allArrayChannelCatId[i]));
objItem.setCategoryName(allArrayChannelCatName[i]);
objItem.setDescription(allArrayChannelDesc[i]);
objItem.setImage(allArrayImage[i]);
objItem.setChannelName(allArrayChannelName[i]);
objItem.setChannelUrl(allArrayChannelurl[i]);
arrayOfLatestMusic.add(objItem);
}
}
}
setAdapterToListview();
return false;
}
@Override
public boolean onQueryTextSubmit(String query) {
// Do something
return true;
}
});
}
}
LatestGridAdapter代码
package com.desitv.geojoy.adapter;
import java.util.List;
import com.desitv.geojoy.R;
import com.desitv.geojoy.imageloader.ImageLoader;
import com.desitv.geojoy.item.ItemLatest;
import com.desitv.geojoy.util.Constant;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class LatestGridAdapter extends ArrayAdapter<ItemLatest>{
private Activity activity;
private List<ItemLatest> itemsLatest;
private ItemLatest objLatestBean;
private int row;
public ImageLoader imageLoader;
public LatestGridAdapter(Activity act, int resource, List<ItemLatest> arrayList, int columnWidth) {
super(act, resource, arrayList);
this.activity = act;
this.row = resource;
this.itemsLatest = arrayList;
imageLoader=new ImageLoader(activity);
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
ViewHolder holder;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(row, null);
holder = new ViewHolder();
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
if ((itemsLatest == null) || ((position + 1) > itemsLatest.size()))
return view;
objLatestBean = itemsLatest.get(position);
holder.imgv_latetst=(ImageView)view.findViewById(R.id.picture);
holder.name=(TextView)view.findViewById(R.id.text);
holder.txt_category=(TextView)view.findViewById(R.id.text_category);
imageLoader.DisplayImage(Constant.SERVER_IMAGE_UPFOLDER_THUMB+objLatestBean.getImage().toString(), holder.imgv_latetst);
holder.name.setText(objLatestBean.getChannelName().toString());
holder.txt_category.setText(objLatestBean.getCategoryName().toString());
return view;
}
public class ViewHolder {
public ImageView imgv_latetst;
public TextView name,txt_category;
}
}