Develop Reference

Searching in a listview using a Custom Adapter with text and images

I am configuring a resource in my app to search in a Listview using a custom Adapter. I using an EditText to type the string and passing the text to Adapter on addTextChangedListener Event, but it is not working.
I configure the adapter with "implements Filterable" and enable Listview with ".setTextFilterEnabled(true)", but doesn´t work.
I saw that I must implement "public Filter getFilter()" but I have no idea how can I do that.
When I type some words in EditText, like "cel" or "12" the filter goes in action, but the result is always the same: The first two items in Listview, no matter what is into the Listview (the content of listview is random).
Below a snippet of my Fragment Activity:
public class VideosFragment extends Fragment {
private ListView listView;
private ArrayList<String> idVideo = new ArrayList<>();
private ArrayList<String> titleVideo = new ArrayList<>();
private ArrayList<String> descVideo = new ArrayList<>();
private ArrayList<String> urlVideo = new ArrayList<>();
private ArrayList<String> channelTitle = new ArrayList<>();
private ArrayList<String> canalTitle = new ArrayList<>();
private ArrayList<String> canalId = new ArrayList<>();
private CustomFiltraCanaisAdapter customFiltraCanaisAdapter;
private EditText editText;
CustomVideoAdapter customVideoAdapter;
public VideosFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_videos, container, false);
// Configure Listview
listView = (ListView)view.findViewById(R.id.listView_videos);
//Create search parameters
editText = (EditText) view.findViewById(R.id.searchList);
listView.setTextFilterEnabled(true);
editText.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
#Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
String text = editText.getText().toString().toLowerCase(Locale.getDefault());
VideosFragment.this.customVideoAdapter.getFilter().filter(text);
}
#Override
public void afterTextChanged(Editable editable) {
}
});
and below my CustomAdapter:
public class CustomVideoAdapter extends ArrayAdapter<String> implements Filterable {
private final Activity context;
private final ArrayList<String> videoTitle;
private final ArrayList<String> videoDesc;
private final ArrayList<String> videoId;
private final ArrayList<String> channelTitle;
private final ArrayList<String> imgurl;
public CustomVideoAdapter(Activity context, ArrayList<String> videoTitle,
ArrayList<String> videoId,
ArrayList<String> channelTitle,
ArrayList<String> imgurl,
ArrayList<String> videoDesc) {
super(context, R.layout.custom_lista_videos, videoTitle);
// TODO Auto-generated constructor stub
this.context = context;
this.videoTitle = videoTitle;
this.videoDesc = videoDesc;
this.videoId = videoId;
this.channelTitle = channelTitle;
this.imgurl = imgurl;
}
public View getView(int position,View view,ViewGroup parent) {
LayoutInflater inflater=context.getLayoutInflater();
View rowView=inflater.inflate(R.layout.custom_lista_videos, null,true);
TextView txtTitle = (TextView) rowView.findViewById(R.id.txtVideoTitle);
ImageView imgPhoto = (ImageView) rowView.findViewById(R.id.imgPhoto);
TextView txtChannelTitle = (TextView) rowView.findViewById(R.id.txtChannelTitle);
TextView txtVideoId = (TextView) rowView.findViewById(R.id.txtVideoId);
TextView txtVideoDesc = (TextView) rowView.findViewById(R.id.txtVideoDesc);
txtTitle.setText(videoTitle.get(position));
Picasso.with(context).load(imgurl.get(position)).into(imgPhoto);
txtChannelTitle.setText(channelTitle.get(position));
txtVideoId.setText(videoId.get(position));
txtVideoDesc.setText(videoDesc.get(position));
return rowView;
};
What is missing?
After some helps I trying to create (and use) a Model Class, but I still have no progress because I did not figure out how can I must change my code on "CustomAdapter" to use correctly this code.
My Model Class is below:
public class FilteredVideoAdapter {
private ArrayList<String> storedVideoTitle = null;
private ArrayList<String> storedVideoDesc = null;
private ArrayList<String> storedVideoId = null;
private ArrayList<String> storedChannelTitle = null;
private ArrayList<String> storedImgurl = null;
public FilteredVideoAdapter(){
}
public ArrayList<String> getStoredVideoTitle() {
return storedVideoTitle;
}
public void setStoredVideoTitle(ArrayList<String> storedVideoTitle) {
this.storedVideoTitle = storedVideoTitle;
}
public ArrayList<String> getStoredVideoDesc() {
return storedVideoDesc;
}
public void setStoredVideoDesc(ArrayList<String> storedVideoDesc) {
this.storedVideoDesc = storedVideoDesc;
}
public ArrayList<String> getStoredVideoId() {
return storedVideoId;
}
public void setStoredVideoId(ArrayList<String> storedVideoId) {
this.storedVideoId = storedVideoId;
}
public ArrayList<String> getStoredChannelTitle() {
return storedChannelTitle;
}
public void setStoredChannelTitle(ArrayList<String> storedChannelTitle) {
this.storedChannelTitle = storedChannelTitle;
}
public ArrayList<String> getStoredImgurl() {
return storedImgurl;
}
public void setStoredImgurl(ArrayList<String> storedImgurl) {
this.storedImgurl = storedImgurl;
}
public FilteredVideoAdapter withFilteredVideoAdapter(
ArrayList<String> storedVideoTitle,
ArrayList<String> storedVideoDesc,
ArrayList<String> storedVideoId,
ArrayList<String> storedChannelTitle,
ArrayList<String> storedImgurl){
this.storedVideoTitle = storedVideoTitle;
this.storedVideoDesc = storedVideoDesc;
this.storedVideoId = storedVideoId;
this.storedChannelTitle = storedChannelTitle;
this.storedImgurl = storedImgurl;
return this;
}
}

This is what you have to do inside your adapter, you might need to do some tweaks:-
#Override
public Filter getFilter() {
return new Filter() {
#Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults();
// If the constraint (search string/pattern) is null
// or its length is 0, i.e., its empty then
// we just set the `values` property to the
// original contacts list which contains all of them
if (constraint == null || constraint.length() == 0) {
results.values = videoTitle;;
results.count = videoTitle.size();
}
else {
// Some search copnstraint has been passed
// so let's filter accordingly
ArrayList<String> filteredTitle = new ArrayList<String>();
// We'll go through all the title and see
// if they contain the supplied string
for (String c : string) {
if (string.toUpperCase().contains( constraint.toString().toUpperCase() )) {
// if `contains` == true then add it
// to our filtered list
filteredTitle.add(c);
}
}
// Finally set the filtered values and size/count
results.values = filteredTitle;
results.count = filteredTitle.size();
}
// Return our FilterResults object
return results;
}
#Override
protected void publishResults(CharSequence constraint, FilterResults results) {
mList = (ArrayList<String>) results.values;
notifyDataSetChanged();
}
};
}
Hope this will help you.

You can do this without using filterable, Try this code
Your Activity Code
vendorSearchEt.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
if (vendorSearchEt.getText().toString().length() == 0) {
if (vendorsListAdapter != null) {
vendorsListAdapter.filter("");
}
} else {
String text = vendorSearchEt.getText().toString().toLowerCase(Locale.getDefault());
if (vendorsListAdapter != null) {
vendorsListAdapter.filter(text);
}
}
}
});
Adapter Class
public class VendorsListAdapter extends BaseAdapter {
// Declare Variables \\
Context mContext;
LayoutInflater inflater;
private List<VendorsList> vendorsLists = null;
private ArrayList<VendorsList> arrayListVendorsList = null;
AppCompatActivity act;
public VendorsListAdapter(Context context,
List<VendorsList> vendorsLists) {
mContext = context;
this.vendorsLists = vendorsLists;
arrayListVendorsList = new ArrayList<>(vendorsLists);
inflater = LayoutInflater.from(mContext);
act = (AppCompatActivity) context;
}
public class ViewHolder {
TextView vendorNameTv;
}
#Override
public int getCount() {
return vendorsLists.size();
}
#Override
public VendorsList getItem(int position) {
return vendorsLists.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder holder;
if (view == null) {
holder = new ViewHolder();
view = inflater.inflate(R.layout.lv_items_vendors_list, null);
holder.vendorNameTv = view.findViewById(R.id.lv_items_vendors_name_tv);
holder.vendorNameTv.setTypeface(StaticMethods.customFont(act, "Quicksand-Regular.otf"));
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
holder.vendorNameTv.setText(vendorsLists.get(position).getVendorName());
return view;
}
/**
* Filter Class for item searching
*
* #param charText Text to be searched
*/
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
vendorsLists.clear();
if (charText.length() == 0) {
vendorsLists.addAll(arrayListVendorsList);
} else {
for (VendorsList vendorsList : arrayListVendorsList) {
if (vendorsList.getVendorName().toLowerCase(Locale.getDefault())
.contains(charText)) {
vendorsLists.add(vendorsList);
}
}
}
notifyDataSetChanged();
}}

ListView search not working

I am trying to use TextChangedListener to implement search functionality on my ListView. But after adding some character in EditText; the ListView goes blank. I have implemented filter method in my ArrayAdapter class.
I am getting my data from JSON.
Here's my code:
UserList.java
public class UserList extends AppCompatActivity {
private ListView listView;
private ArrayList<MyDataModel> list;
private MyArrayAdapter adapter;
private EditText search;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.user_list);
search = (EditText) findViewById(R.id.search);
//Array List for Binding Data from JSON to this List
list = new ArrayList<>();
//Binding that List to Adapter
adapter = new MyArrayAdapter(this, list);
//Getting List and Setting List Adapter
listView = (ListView) findViewById(R.id.listView);
listView.setAdapter(adapter);
listView.setTextFilterEnabled(true);
search.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
String text = search.getText().toString().toLowerCase(Locale.getDefault());
adapter.filter(text);
}
#Override
public void afterTextChanged(Editable s) {
}
});
//Checking Internet Connection
if (InternetConnection.checkConnection(getApplicationContext())) {
new GetDataTask().execute();
} else {
Snackbar.make(findViewById(R.id.parentLayout),"Internet Connection Not Available", Snackbar.LENGTH_LONG).show();
}
}
//Creating Get Data Task for Getting Data From Web
class GetDataTask extends AsyncTask<Void, Void, Void> {
ProgressDialog dialog;
int jIndex;
int x;
#Override
protected void onPreExecute() {
super.onPreExecute();
//Progress Dialog for User Interaction
x=list.size();
if(x==0)
jIndex=0;
else
jIndex=x;
dialog = new ProgressDialog(UserList.this);
dialog.setTitle("Please Wait..."+x);
dialog.setMessage("Retrieving Data");
dialog.show();
}
#Nullable
#Override
protected Void doInBackground(Void... params) {
//Getting JSON Object from Web Using okHttp
JSONObject jsonObject = JSONParser.getDataFromWeb();
try {
if (jsonObject != null) {
if(jsonObject.length() > 0) {
JSONArray array = jsonObject.getJSONArray(Keys.KEY_CONTACTS);
//Check Length of Array...
int lenArray = array.length();
if(lenArray > 0) {
for( ; jIndex < lenArray; jIndex++) {
//Creating Every time New Object and adding to List
MyDataModel model = new MyDataModel();
JSONObject innerObject = array.getJSONObject(jIndex);
String name = innerObject.getString(Keys.KEY_NAME);
model.setName(name);
list.add(model);
}
}
}
} else {
}
} catch (JSONException je) {
Log.i(JSONParser.TAG, "" + je.getLocalizedMessage());
}
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
dialog.dismiss();
//Checking if List size if more than zero then update ListView
if(list.size() > 0) {
adapter.notifyDataSetChanged();
} else {
Snackbar.make(findViewById(R.id.parentLayout), "No Data Found", Snackbar.LENGTH_LONG).show();
}
}
}
}
I have implemented the filter method in my ArrayAdapter class.
Here's my ArrayAdapter class:
MyArrayAdapter.java
public class MyArrayAdapter extends ArrayAdapter<MyDataModel> implements Filterable{
List<MyDataModel> modelList;
Context context;
private LayoutInflater mInflater;
private ArrayList<MyDataModel> arrayList;
public MyArrayAdapter(Context context, List<MyDataModel> objects) {
super(context, 0, objects);
this.context = context;
this.mInflater = LayoutInflater.from(context);
modelList = objects;
this.arrayList = new ArrayList<MyDataModel>();
this.arrayList.addAll(modelList);
}
#Override
public MyDataModel getItem(int position) {
return modelList.get(position);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder vh;
if (convertView == null) {
View view = mInflater.inflate(R.layout.layout_row_view, parent, false);
vh = ViewHolder.create((RelativeLayout) view);
view.setTag(vh);
} else {
vh = (ViewHolder) convertView.getTag();
}
MyDataModel item = getItem(position);
vh.textViewName.setText(item.getName());
return vh.rootView;
}
private static class ViewHolder {
public final RelativeLayout rootView;
public final TextView textViewName;
private ViewHolder(RelativeLayout rootView, TextView textViewName) {
this.rootView = rootView;
this.textViewName = textViewName;
}
public static ViewHolder create(RelativeLayout rootView) {
TextView textViewName = (TextView) rootView.findViewById(R.id.textViewName);
return new ViewHolder(rootView, textViewName);
}
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
modelList.clear();
if (charText.length() == 0) {
modelList.addAll(arrayList);
} else {
for (MyDataModel wp : arrayList) {
if (wp.getName().toLowerCase(Locale.getDefault()).contains(charText)) {
modelList.add(wp);
}
}
}
notifyDataSetChanged();
}

Call search function from aftertTexChange
search.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
// i have updated this
String text = e.toString().toLowerCase(Locale.getDefault());
adapter.filter(text);
}
});
now your search method should like this
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
modelList.clear();
// add this one here
notifyDataSetChanged();
if (charText.length() == 0) {
modelList.addAll(arrayList);
} else {
// change this for loop
for (int i = 0; i< arrayList.size(); i++) {
if (arrayList.get(i).getName().toLowerCase(Locale.getDefault()).contains(charText)) {
modelList.add(arrayList.get(i));
}
}
}
notifyDataSetChanged();
}

Filter returns empty listview

Hi I am trying a search/filter app where data are coming from mySql database to fill up the listview. The populating of listview is working perfectly fine, except for the filtering part. It doesn't filter the listview, it's empty. Help please.
MAIN Activity:
public class MainActivity extends Activity {
public static final String url = "";
// Declare Variables
ListView list;
ListViewAdapter adapter;
EditText editsearch;
String[] rank;
String[] country;
String[] population;
ArrayList<WorldPopulation> arraylist = new ArrayList<WorldPopulation>();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Generate list View from ArrayList
displayListView();
// Locate the ListView in listview_main.xml
list = (ListView) findViewById(R.id.listview);
// Pass results to ListViewAdapter Class
adapter = new ListViewAdapter(this, arraylist);
// Binds the Adapter to the ListView
list.setAdapter(adapter);
// Locate the EditText in listview_main.xml
editsearch = (EditText) findViewById(R.id.search);
// Capture Text in EditText
editsearch.addTextChangedListener(new TextWatcher() {
#Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
String text = editsearch.getText().toString().toLowerCase(Locale.getDefault());
adapter.filter(text);
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
// TODO Auto-generated method stub
}
#Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
});
}
private void displayListView() {
// Creating volley request obj
StringRequest stringRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>(){
#Override
public void onResponse(String response) {
parseData(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
//Creating request queue
RequestQueue requestQueue = Volley.newRequestQueue(this);
//Adding request to the queue
requestQueue.add(stringRequest);
}
private void parseData(String json) {
JSONArray items = null;
JSONObject jsonObject=null;
try {
jsonObject = new JSONObject(json);
items = jsonObject.getJSONArray("result");
rank = new String[items.length()];
country = new String[items.length()];
population = new String[items.length()];
for (int i = 0; i < items.length(); i++) {
JSONObject jo = items.getJSONObject(i);
rank[i] = jo.getString("rank");
country[i] = jo.getString("country");
population[i] = jo.getString("population");
WorldPopulation wp = new WorldPopulation(rank[i], country[i],
population[i]);
// Binds all strings into an array
arraylist.add(wp);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
BASE Adapter:
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context mContext;
LayoutInflater inflater;
private List<WorldPopulation> worldpopulationlist = null;
private ArrayList<WorldPopulation> arraylist;
public ListViewAdapter(Context context, List<WorldPopulation> worldpopulationlist) {
mContext = context;
this.worldpopulationlist = worldpopulationlist;
inflater = LayoutInflater.from(mContext);
this.arraylist = new ArrayList<WorldPopulation>();
this.arraylist.addAll(worldpopulationlist);
}
public class ViewHolder {
TextView rank;
TextView country;
TextView population;
}
#Override
public int getCount() {
return worldpopulationlist.size();
}
#Override
public WorldPopulation getItem(int position) {
return worldpopulationlist.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder holder;
if (view == null) {
holder = new ViewHolder();
view = inflater.inflate(R.layout.listview_item, null);
// Locate the TextViews in listview_item.xml
holder.rank = (TextView) view.findViewById(R.id.rank);
holder.country = (TextView) view.findViewById(R.id.country);
holder.population = (TextView) view.findViewById(R.id.population);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
// Set the results into TextViews
holder.rank.setText(worldpopulationlist.get(position).getRank());
holder.country.setText(worldpopulationlist.get(position).getCountry());
holder.population.setText(worldpopulationlist.get(position).getPopulation());
// Listen for ListView Item Click
view.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// Send single item click data to SingleItemView Class
Intent intent = new Intent(mContext, SingleItemView.class);
// Pass all data rank
intent.putExtra("rank",(worldpopulationlist.get(position).getRank()));
// Pass all data country
intent.putExtra("country",(worldpopulationlist.get(position).getCountry()));
// Pass all data population
intent.putExtra("population",(worldpopulationlist.get(position).getPopulation()));
// Pass all data flag
// Start SingleItemView Class
mContext.startActivity(intent);
}
});
return view;
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
worldpopulationlist.clear();
if (charText.length() == 0) {
worldpopulationlist.addAll(arraylist);
}
else
{
for (WorldPopulation wp : arraylist)
{
if (wp.getCountry().toLowerCase(Locale.getDefault()).contains(charText))
{
worldpopulationlist.add(wp);
}
}
}
notifyDataSetChanged();
}
And the model:
public class WorldPopulation {
private String rank;
private String country;
private String population;
public WorldPopulation(String rank, String country, String population) {
this.rank = rank;
this.country = country;
this.population = population;
}
public String getRank() {
return this.rank;
}
public String getCountry() {
return this.country;
}
public String getPopulation() {
return this.population;
}
}

Issue with adding addTextChangedListener in adapter

I'm trying to implement a search function in my application. I have used an adapter to because I want to display 2 textviews in listview and listview should be clickable (I don;t think it's possible to do without an adapter).
My problem is I can't use addTextChangedListener in the adapter class. it gives exception (It worked in my activity class).
search activity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.search_results_activity);
new SearchMenuAsyncTask(getApplicationContext(), this).execute();
listtv = (LinearLayout) findViewById(R.id.product_lv);
lv = (ListView) findViewById(R.id.list_view);
inputSearch = (EditText) findViewById(R.id.inputSearch);
inputSearch.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
System.out.println("Text ["+s+"]");
adapter.getFilter().filter(s.toString());
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
#Override
public void afterTextChanged(Editable s) {
}
});
}
#Override
public void onTaskCompleted(JSONArray responseJson) {
try {
final List<String> descriptions = new ArrayList<String>();
final List<String> menudescriptions = new ArrayList<String>();
for (int i = 0; i < responseJson.length(); ++i) {
final JSONObject object = responseJson.getJSONObject(i);
if ((object.getString("MainCategoryID")).equals("5")
&& (object.getString("SubCategoryID")).equals("6")
&& (object.getString("Visible")).equals("true")) {
Log.i("descriptionsBev ", object.getString("Description"));
descriptions.add(object.getString("Description"));
Log.i("MenuDescription ",
object.getString("MenuDescription"));
menudescriptions
.add(object.getString("MenuDescription"));
}
adapter = new CustomListSearch(
getApplicationContext(), descriptions,
menudescriptions);
lv.setAdapter(adapter);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
CustomListSearch.java
public class CustomListSearch extends BaseAdapter implements Filterable {
private Context context;
private final List<String> descriptions;
private List<String>filteredData = null;
private final List<String> menudescriptions;
private ItemFilter mFilter = new ItemFilter();
private LayoutInflater mInflater;
ArrayAdapter<String> adapter;
public CustomListSearch(Context c, List<String> data,
List<String> menudescriptions) {
this.context = c;
this.filteredData = data ;
this.descriptions = data;
this.menudescriptions = menudescriptions;
mInflater = LayoutInflater.from(context);
}
#Override
public int getCount() {
return filteredData.size();
}
#Override
public Object getItem(int position) {
return filteredData.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
private class ViewHolder {
private TextView tvMenudescriptions;
private TextView tvDescriptions;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = LayoutInflater.from(context).inflate(
R.layout.search_list_item, parent, false);
holder.tvDescriptions = (TextView) convertView
.findViewById(R.id.product_name);
holder.tvMenudescriptions = (TextView) convertView
.findViewById(R.id.product_description);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tvDescriptions.setText(descriptions.get(position));
holder.tvMenudescriptions.setText(menudescriptions.get(position));
LinearLayout itemlist = (LinearLayout) convertView
.findViewById(R.id.product_lv);
itemlist.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(context, "Still under constructions...",
Toast.LENGTH_LONG).show();
}
});
return convertView;
}
#Override
public Filter getFilter() {
// TODO Auto-generated method stub
return mFilter;
}
private class ItemFilter extends Filter {
#Override
protected FilterResults performFiltering(CharSequence constraint) {
String filterString = constraint.toString().toLowerCase();
FilterResults results = new FilterResults();
final List<String> list = descriptions;
int count = list.size();
final ArrayList<String> nlist = new ArrayList<String>(count);
String filterableString ;
for (int i = 0; i < count; i++) {
filterableString = list.get(i);
if (filterableString.toLowerCase().contains(filterString)) {
nlist.add(filterableString);
}
}
results.values = nlist;
results.count = nlist.size();
return results;
}
#SuppressWarnings("unchecked")
#Override
protected void publishResults(CharSequence constraint, FilterResults results) {
filteredData = (ArrayList<String>) results.values;
notifyDataSetChanged();
}
}
}
I was following below answer and worked this out
Custom Listview Adapter with filter Android

How to implement autocompletetextview with listview?

I am getting response from server and display it using listview and it works fine,now what I am trying is i added autocompletetextview to search items by name,but when i run my app it crashes and showing errors..i already ask this
Tab1Activity.java
public class Tab1Activity extends ListActivity{
private ProgressDialog pDialog;
JSONArray Product=null;
private ListView listview;
ArrayList<HashMap<String,String>> aList;
ArrayList<HashMap<String, String>> arrayTemplist;
private static String PRODUCT_URL = "";
private static final String PRODUCT_DATA="Product";
private static final String PRODUCT_ID="productid";
private static final String PRODUCT_NAME="product_name";
private static final String PRODUCT_CODE="skucode";
private static final String PRODUCT_IMAGE="product_photo";
private static final String PRODUCT_WEIGHT="weight";
private static final String PRODUCT_SALERATE="sale_rate";
//private static final String PRODUCT_LOCATION="weight";
private CustomAdapterTabone adapter;
private TextView noacpt;
private AutoCompleteTextView inputSearch;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.list_view_tabone);
//noacpt=(TextView)findViewById(R.id.no_acceptedlist);
/*String strtext = getIntent().getStringExtra("id");
System.out.println("<<<<<<<< id : " + strtext);*/
final ListView listview = (ListView)findViewById(android.R.id.list);
//listview.setSelector( R.drawable.list_selector);
//listview.setSelector(R.drawable.listselector);
new LoadAlbums().execute();
aList = new ArrayList<HashMap<String, String>>();
final ListView lv = getListView();
inputSearch = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1);
inputSearch.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
arrayTemplist= new ArrayList<HashMap<String,String>>();
String searchString =inputSearch.getText().toString().toLowerCase();
for (int i = 0; i < aList.size(); i++)
{
String currentString =aList.get(i).get(Tab1Activity.PRODUCT_NAME);
if (currentString.toLowerCase().startsWith(searchString ))
{
arrayTemplist.add(aList.get(i));
}
}
for (int i = 0; i < arrayTemplist.size(); i++)
{
String currentstrin = arrayTemplist.get(i).get(Tab1Activity.PRODUCT_NAME);
//Toast.makeText(getApplicationContext(), currentstrin, Toast.LENGTH_LONG).show();
}
adapter=new CustomAdapterTabone(getApplicationContext(), arrayTemplist);
listview.setAdapter(adapter);
/* SimpleAdapter adapters = new SimpleAdapter(Tab1Activity.this, arrayTemplist,R.layout.list_item_tabone, new String[] { PRODUCT_NAME
}, new int[] {
R.id.txtpronameacptedlist});
lv.setAdapter(adapters);
*/
}
#Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
#Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
}
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
Intent intent = new Intent(getApplicationContext(), AllProductDetails.class);
intent.putExtra("productid", aList.get(position).get(PRODUCT_ID));
startActivity(intent);
}
class LoadAlbums extends AsyncTask<String, String, ArrayList<HashMap<String,String>>> {
/**
* Before starting background thread Show Progress Dialog
* */
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Tab1Activity.this);
pDialog.setMessage("Loading...");
pDialog.setIndeterminate(true);
// pDialog.setIndeterminateDrawable(getResources().getDrawable(R.drawable.custom_progress));
pDialog.setCancelable(false);
pDialog.show();
}
protected ArrayList<HashMap<String,String>> doInBackground(String... args) {
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
ArrayList<HashMap<String,String>> data = new ArrayList<HashMap<String, String>>();
String jsonStr = sh.makeServiceCall(PRODUCT_URL, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
// Getting JSON Array node
Product = jsonObj.getJSONArray(PRODUCT_DATA);
for (int i = 0; i < Product.length(); i++) {
JSONObject c = Product.getJSONObject(i);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(PRODUCT_ID, c.getString(PRODUCT_ID));
map.put(PRODUCT_NAME,c.getString(PRODUCT_NAME));
map.put(PRODUCT_CODE, c.getString(PRODUCT_CODE));
map.put(PRODUCT_IMAGE, c.getString(PRODUCT_IMAGE));
map.put(PRODUCT_WEIGHT, c.getString(PRODUCT_WEIGHT));
map.put(PRODUCT_SALERATE, c.getString(PRODUCT_SALERATE)+getResources().getString(R.string.rupee));
// map.put(INTEREST_ACCEPT_LOCATION, c.getString(INTEREST_ACCEPT_LOCATION));
// adding HashList to ArrayList
data.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return data;
}
protected void onPostExecute(ArrayList<HashMap<String,String>> result) {
super.onPostExecute(result);
// dismiss the dialog after getting all albums
if (pDialog.isShowing())
pDialog.dismiss();
// updating UI from Background Thread
aList = new ArrayList<HashMap<String, String>>();
aList.addAll(result);
adapter = new CustomAdapterTabone(getApplicationContext(),result);
setListAdapter(adapter);
aList.addAll(result);
adapter.notifyDataSetChanged();
}
}
CustomAdapter
public class CustomAdapterTabone extends BaseAdapter{
private Context context;
private ArrayList<HashMap<String,String>> listData;
private AQuery aQuery;
private static final String TAG_NAME="product_name";
private static final String TAG_PROFILE="skucode";
private static final String TAG_IMAGE="product_photo";
private static final String TAG_CAST="weight";
private static final String TAG_AGE="sale_rate";
// private static final String TAG_LOCATION="weight";
public CustomAdapterTabone(Context context,ArrayList<HashMap<String,String>> listData) {
this.context = context;
this.listData=listData;
aQuery = new AQuery(this.context);
}
#Override
public int getCount() {
return listData.size();
}
#Override
public Object getItem(int position) {
return listData.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = LayoutInflater.from(context).inflate(R.layout.list_item_tabone, null);
holder.propic = (ImageView) convertView.findViewById(R.id.propicaccept);
holder.txtproname = (TextView) convertView.findViewById(R.id.txtpronameacptedlist);
holder.txtproid = (TextView) convertView.findViewById(R.id.txtproidacptedlist);
holder.txtprofilecast = (TextView) convertView.findViewById(R.id.txtprofilecastacptedlist);
holder.txtprofileage = (TextView) convertView.findViewById(R.id.txtprofileageacptedlist);
// holder.txtprofileplace = (TextView) convertView.findViewById(R.id.txtprofileplaceacptedlist);
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
holder.txtproname.setText(listData.get(position).get(TAG_NAME));
holder.txtproid.setText(listData.get(position).get(TAG_PROFILE));
holder.txtprofilecast.setText(listData.get(position).get(TAG_CAST));
holder.txtprofileage.setText(listData.get(position).get(TAG_AGE));
//holder.txtprofileplace.setText(listData.get(position).get(TAG_LOCATION));
aQuery.id(holder.propic).image(listData.get(position).get(TAG_IMAGE),true,true,0,R.drawable.ic_launcher);
// image parameter : 1 : memory cache,2:file cache,3:target width,4:fallback image
return convertView;
}
class ViewHolder{
ImageView propic;
TextView txtproname;
TextView txtproid;
TextView txtprofilecast;
TextView txtprofileage;
TextView txtprofileplace;
}
}

First create a custom adapter implements filterable:
public class MyFilterableAdapter extends BaseAdapter implements Filterable {
private Context context;
private List<String> items;
private List<String> filteredItems;
private ItemFilter mFilter = new ItemFilter();
public MyFilterableAdapter(Context context, List<String> items) {
//super(context, R.layout.your_row, items);
this.context = context;
this.items = items;
this.filteredItems = items;
}
#Override
public int getCount() {
return filteredItems.size();
}
#Override
public Object getItem(int position) {
return filteredItems.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.row_search_merchant, parent, false);
viewHolder = new ViewHolder();
viewHolder.tvTitle = (TextView) convertView.findViewById(R.id.tv_title);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
String location = filteredItems.get(position);
if (!location.isEmpty() || viewHolder != null) {
viewHolder.tvTitle.setText(location);
}
return convertView;
}
public static class ViewHolder {
TextView tvTitle;
}
private class ItemFilter extends Filter {
#Override
protected FilterResults performFiltering(CharSequence constraint) {
String filterString = constraint.toString().toLowerCase();
FilterResults results = new FilterResults();
int count = items.size();
final List<String> tempItems = new ArrayList<>(count);
for (int i = 0; i < count; i++) {
if (items.get(i).toLowerCase().contains(filterString)) {
tempItems.add(items.get(i));
}
}
results.values = tempItems;
results.count = tempItems.size();
return results;
}
#SuppressWarnings("unchecked")
#Override
protected void publishResults(CharSequence constraint, FilterResults results) {
filteredItems = (ArrayList<String>) results.values;
notifyDataSetChanged();
}
}
public Filter getFilter() {
return mFilter;
}
}
And than create a textwatcher
public class MyTextWatcher implements TextWatcher {
private MyCustomAdapter lAdapter;
public MyTextWatcher(MyCustomAdapter lAdapter) {
this.lAdapter = lAdapter;
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
lAdapter.getFilter().filter(s.toString().toLowerCase());
}
}
And finally add your TextWatcher to your Search Edit Text:
final MyCustomAdapter lAdapter = new MyCustomAdapter(context, items);
EditText etSearch = (EditText) view.findViewById(R.id.et_search);
etSearch.addTextChangedListener(new SearchTextWatcher(lAdapter));
I hope this'll help you.