在android中使用edittext对ListView进行排序
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【中文标题】在android中使用edittext对ListView进行排序【英文标题】：Sort ListView using edittext in android 【发布时间】：2015-01-30 20:09:48 【问题描述】：我想做什么::
我正在尝试使用编辑文本搜索列表视图
发生了什么：
数据已正确填充到列表视图，但在 edittext 中输入文本时出现错误
FrgVendorsSearch.java
public class FrgVendorsSearch extends Fragment implements OnClickListener
private String errMsg="",txtMsg="";
private static boolean isErr=false;
ListView lst;
ArrayList<HashMap<String, String>> lstData;
SearchModel searchModel;
HashMap<String, String> mapData;
ImageButton btnFilterId;
EditText edtSearchId;
String url;
String name;
String city;
AdptVendorSearch adapter;
String serverStatus,serverMessage;
String categories;
private ArrayList<SearchModel> _searchModel = new ArrayList<SearchModel>();
public FrgVendorsSearch()
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
View rootView = inflater.inflate(R.layout.frg_vendors_search, container, false);
initInstances(rootView);
return rootView;
@Override
public void onActivityCreated(Bundle savedInstanceState)
super.onActivityCreated(savedInstanceState);
@Override
public void onStart()
super.onStart();
url=getResources().getString(R.string.vendorList_api)+"?status=1".trim();
setOnClickListeners();
if(CommonFunctions.isOnline(getActivity()))
//Internet connectivity is available
new LongOperation().execute("");
else
//Show the Message
getFragmentManager().popBackStack(FrgAddNewJobs.class.getSimpleName(), getFragmentManager().POP_BACK_STACK_INCLUSIVE);
DlgUniversalError.showQuitAlert(getActivity(), getResources().getString(R.string.connToInternetTryAgain));
edtSearchId.addTextChangedListener(new TextWatcher()
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3)
adapter.getFilter().filter(arg0);
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3)
@Override
public void afterTextChanged(Editable arg0)
);
@Override
public void onClick(View v)
switch (v.getId())
case R.id.btnFilterId:
break;
case R.id.edtSearchId:
break;
private class LongOperation extends AsyncTask<String, Integer, String>
@Override
protected void onPreExecute()
@Override
protected String doInBackground(String... params)
try
httpServerRequest(url);
catch (ConnectTimeoutException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
publishProgress(1);
catch (SocketException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
publishProgress(2);
catch (IOException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
publishProgress(3);
catch (JSONException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
publishProgress(4);
catch (Exception e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
publishProgress(0);
return "Executed";
@Override
protected void onProgressUpdate(Integer... arrMsg)
if(arrMsg[0]==0)
if(isErr==true)
DlgUniversalError.showQuitAlert(getActivity(),errMsg);//Pop the dialog
else if(arrMsg[0]==1)
DlgUniversalError.showQuitAlert(getActivity(),getActivity().getResources().getString(R.string.connDelayTryAgainLater));//Pop the dialog
else if(arrMsg[0]==2)
DlgUniversalError.showQuitAlert(getActivity(),getActivity().getResources().getString(R.string.connDelayTryAgainLater));//Pop the dialog
else if(arrMsg[0]==3)
DlgUniversalError.showQuitAlert(getActivity(),getActivity().getResources().getString(R.string.connDelayTryAgainLater));//Pop the dialog
else if(arrMsg[0]==4)
DlgUniversalError.showQuitAlert(getActivity(),errMsg);//Pop the dialog
@Override
protected void onPostExecute(String result)
adapter=new AdptVendorSearch(getActivity(),_searchModel);
lst.setAdapter(adapter);
private void httpServerRequest(String _url) throws Exception
InputStream inputStream = null;
InputStream response = null;
String result = "";
JSONObject jsonObj;
DateFormat sdf;
DateFormat df;
Date startDate;
try
//lstData.clear();
HttpClient httpclient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(_url);
//SET THE HTTP HEADERS
httpGet.setHeader("phonenumber",AppController.getPhoneNumber());
httpGet.setHeader("authtoken",AppController.getAuthCode());
//SET THE HTTP PARAMS
HttpParams httpParameters = httpGet.getParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 10*1000);
HttpConnectionParams.setSoTimeout(httpParameters, 10*1000);
// 8. Execute POST request to the given URL
HttpResponse httpResponse = httpclient.execute(httpGet);
// 9. receive response as inputStream
inputStream = httpResponse.getEntity().getContent();
// 10. convert inputstream to string
if(inputStream != null)
result = convertInputStreamToString(inputStream);
else
result = "Did not work!";
jsonObj = new JSONObject(result);
serverStatus=jsonObj.getString("status");
serverMessage=jsonObj.getString("message");
if(serverMessage.equalsIgnoreCase("Done"))
//Valid Response
JSONArray data=jsonObj.getJSONArray("data");
for(int i=0; i<data.length();i++)
mapData=new HashMap<String, String>();
JSONObject temp_obj = data.getJSONObject(i);
JSONObject userIdObj=new JSONObject(temp_obj.getString("userId"));
name=userIdObj.getString("name");
JSONObject addressIdObj=new JSONObject(temp_obj.getString("addressId"));
city=addressIdObj.getString("city");
JSONArray categoryArrObj=temp_obj.getJSONArray("sp_category");
StringBuilder categoryBuilder = new StringBuilder();
for(int j=0; j<categoryArrObj.length();j++)
JSONObject temp_obj_category = categoryArrObj.getJSONObject(j);
JSONObject jobCategoryObj=new JSONObject(temp_obj_category.getString("jobCategoryId"));
categoryBuilder.append(jobCategoryObj.getString("name"));
categoryBuilder.append(", ");
categories=categoryBuilder.toString();
// Prepare the List object
mapData.put("name",name);
mapData.put("city",city);
mapData.put("categories",categories);
lstData.add(mapData);
SearchModel searchModel=new SearchModel();
searchModel.setName(name);
searchModel.setLocation(city);
searchModel.setCategory(categories);
_searchModel.add(searchModel);
Log.d("", "");
else if(serverMessage.equalsIgnoreCase("Invalid Tolken"))
//Tolken Expired
Intent i = new Intent(getActivity(), ActMain.class);
SharedPreferences pref = getActivity().getApplicationContext().getSharedPreferences("MyPref", 0);
Editor editor = pref.edit();
editor.clear();
editor.commit();
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
catch (MalformedURLException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
throw e;
catch (ConnectTimeoutException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
throw e;
catch (SocketException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
throw e;
catch (IOException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
throw e;
catch (JSONException e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
throw e;
catch (Exception e)
if(isErr==false)
errMsg=e.getLocalizedMessage();
isErr=true;
throw e;
private void initInstances(View rootView)
lstData=new ArrayList<HashMap<String,String>>();
searchModel=new SearchModel();
lst=(ListView) rootView.findViewById(R.id.lst);
btnFilterId=(ImageButton) rootView.findViewById(R.id.btnFilterId);
edtSearchId=(EditText) rootView.findViewById(R.id.edtSearchId);
private void setOnClickListeners()
edtSearchId.setOnClickListener(this);
btnFilterId.setOnClickListener(this);
private static String convertInputStreamToString(InputStream inputStream) throws Exception
String result = "";
try
BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
String line = "";
result = "";
while((line = bufferedReader.readLine()) != null)
result += line;
inputStream.close();
catch (Exception e)
// TODO Auto-generated catch block
e.printStackTrace();
return result;
AdptVendorSearch.java
public class AdptVendorSearch extends BaseAdapter implements Filterable
Context context;
private ValueFilter valueFilter;
ArrayList<SearchModel> searchModel;
private ArrayList<SearchModel> _searchModel;
private ArrayList<SearchModel> mStringFilterList;
public AdptVendorSearch(Context _context, ArrayList<SearchModel> _searchModel)
this.context = _context;
this._searchModel=_searchModel;
mStringFilterList=_searchModel;
getFilter();
@Override
public int getCount()
// TODO Auto-generated method stub
return mStringFilterList.size();
@Override
public Object getItem(int position)
// TODO Auto-generated method stub
return null;
@Override
public long getItemId(int position)
// TODO Auto-generated method stub
return position;
// our ViewHolder.
// caches our TextView
static class ViewHolderItem
TextView txtMsgNameId,txtLocationId,txtCategoryId,txtAvailId;
RatingBar rtngId;
@Override
public View getView(int position, View convertView, ViewGroup parent)
// TODO Auto-generated method stub
ViewHolderItem viewHolder;
if(convertView==null)
// inflate the layout
LayoutInflater inflater = (LayoutInflater)context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.adpt_vendor_search, parent, false);
//convertView.setMinimumHeight(30); //set minimum height of view here
// well set up the ViewHolder
viewHolder = new ViewHolderItem();
viewHolder.txtMsgNameId = (TextView) convertView.findViewById(R.id.txtMsgNameId);
viewHolder.txtLocationId = (TextView) convertView.findViewById(R.id.txtLocationId);
viewHolder.txtCategoryId = (TextView) convertView.findViewById(R.id.txtCategoryId);
viewHolder.txtAvailId = (TextView) convertView.findViewById(R.id.txtAvailId);
viewHolder.rtngId = (RatingBar) convertView.findViewById(R.id.rtngId);
// store the holder with the view.
convertView.setTag(viewHolder);
else
// we've just avoided calling findViewById() on resource every time
// just use the viewHolder
viewHolder = (ViewHolderItem) convertView.getTag();
viewHolder.txtMsgNameId.setText(_searchModel.get(position).getName());
viewHolder.txtLocationId.setText("Location: "+_searchModel.get(position).getlocation());
viewHolder.txtCategoryId.setText("Category: "+_searchModel.get(position).getCategory());
//viewHolder.txtAvailId.setText("Availability: "+mapData.get("availability"));
//viewHolder.rtngId.setRating((Float.valueOf(mapData.get("ratings"))));
return convertView;
@Override
public Filter getFilter()
if(valueFilter==null)
valueFilter=new ValueFilter();
return valueFilter;
private class ValueFilter extends Filter
//Invoked in a worker thread to filter the data according to the constraint.
@Override
protected FilterResults performFiltering(CharSequence constraint)
FilterResults results=new FilterResults();
if(constraint!=null && constraint.length()>0)
ArrayList<SearchModel> filterList=new ArrayList<SearchModel>();
//ArrayList<HashMap<String, String>> filterlstData=new ArrayList<HashMap<String, String>>();
for(int i=0;i<mStringFilterList.size();i++)
if((mStringFilterList.get(i).getName().toUpperCase())
.contains(constraint.toString().toUpperCase()))
SearchModel SearchModel = new SearchModel();
SearchModel.setName(mStringFilterList.get(i).getName());
SearchModel.setCategory(mStringFilterList.get(i).getCategory());
SearchModel.setLocation(mStringFilterList.get(i).getlocation());
filterList.add(SearchModel);
results.count=filterList.size();
results.values=filterList;
else
results.count=mStringFilterList.size();
results.values=mStringFilterList;
return results;
//Invoked in the UI thread to publish the filtering results in the user interface.
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,
FilterResults results)
_searchModel=(ArrayList<SearchModel>) results.values;
notifyDataSetChanged();
日志::
12-02 19:57:07.985: E/androidRuntime(625): FATAL EXCEPTION: main
12-02 19:57:07.985: E/AndroidRuntime(625): java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
12-02 19:57:07.985: E/AndroidRuntime(625): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
12-02 19:57:07.985: E/AndroidRuntime(625): at java.util.ArrayList.get(ArrayList.java:304)
12-02 19:57:07.985: E/AndroidRuntime(625): at com.windhyaworks.adapters.AdptVendorSearch.getView(AdptVendorSearch.java:96)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.AbsListView.obtainView(AbsListView.java:2012)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.ListView.makeAndAddView(ListView.java:1772)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.ListView.fillSpecific(ListView.java:1318)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.ListView.layoutChildren(ListView.java:1603)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.AbsListView.onLayout(AbsListView.java:1863)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.View.layout(View.java:11180)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewGroup.layout(ViewGroup.java:4203)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.View.layout(View.java:11180)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewGroup.layout(ViewGroup.java:4203)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.View.layout(View.java:11180)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewGroup.layout(ViewGroup.java:4203)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:887)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.View.layout(View.java:11180)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewGroup.layout(ViewGroup.java:4203)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.View.layout(View.java:11180)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewGroup.layout(ViewGroup.java:4203)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.View.layout(View.java:11180)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewGroup.layout(ViewGroup.java:4203)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.View.layout(View.java:11180)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewGroup.layout(ViewGroup.java:4203)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1468)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2418)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.os.Handler.dispatchMessage(Handler.java:99)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.os.Looper.loop(Looper.java:137)
12-02 19:57:07.985: E/AndroidRuntime(625): at android.app.ActivityThread.main(ActivityThread.java:4340)
12-02 19:57:07.985: E/AndroidRuntime(625): at java.lang.reflect.Method.invokeNative(Native Method)
12-02 19:57:07.985: E/AndroidRuntime(625): at java.lang.reflect.Method.invoke(Method.java:511)
12-02 19:57:07.985: E/AndroidRuntime(625): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-02 19:57:07.985: E/AndroidRuntime(625): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-02 19:57:07.985: E/AndroidRuntime(625): at dalvik.system.NativeStart.main(Native Method)
【问题讨论】：
【参考方案1】：这个：
@Override
public int getCount()
// TODO Auto-generated method stub
return mStringFilterList.size();
到：
@Override
public int getCount()
// TODO Auto-generated method stub
return _searchModel.size();
因为你有：
protected void publishResults(CharSequence constraint,
FilterResults results)
_searchModel=(ArrayList<SearchModel>) results.values; // <<--- here
notifyDataSetChanged();
【讨论】：
检查他的构造函数。 mStringFilterList=_searchModel;那么有什么区别呢？ _searchModel=(ArrayList以上是关于在android中使用edittext对ListView进行排序的主要内容，如果未能解决你的问题，请参考以下文章
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