Halani is right. Here is my implementation using the widely used collection class.
package com.urugn.autocomplete.adapter;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Filter;
import android.widget.TextView;
import com.urugn.android.v_route_info.R;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
public class PlacesAdapter extends ArrayAdapter {
private final String MY_DEBUG_TAG = "MapAdapter";
private ArrayList<Map> items;
private ArrayList<Map> itemsAll;
private ArrayList<Map> suggestions;
private int viewResourceId;
private final String key = "description";
public PlacesAdapter(Context context, int resource, int textViewResourceId, List objects) {
super(context, resource, textViewResourceId, objects);
viewResourceId = textViewResourceId;
itemsAll = new ArrayList(objects);
suggestions = new ArrayList(objects);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
Map map = (Map) getItem(position);
if (map != null) {
if (v != null) {
TextView vriPlace = (TextView) v.findViewById(R.id.vriPlace);
if (vriPlace != null) {
vriPlace.setText((String) map.get(key));
}
}
}
return v;
}
@Override
public Filter getFilter() {
return nameFilter;
}
Filter nameFilter = new Filter() {
@Override
public String convertResultToString(Object resultValue) {
String str = (String) ((Map) resultValue).get(key);
return str;
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
Log.d("VRIPlacesFilter", "Filter " + constraint);
if (constraint != null) {
suggestions.clear();
for (Map map : itemsAll) {
if (((String) map.get(key)).toLowerCase().startsWith(constraint.toString().toLowerCase())) {
Log.d("VRIPlacesFilter", "Found " + map.get(key));
suggestions.add(map);
}
}
FilterResults filterResults = new FilterResults();
filterResults.values = suggestions;
filterResults.count = suggestions.size();
return filterResults;
} else {
return new FilterResults();
}
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
Log.d("VRIPlacesFilter", "Publish " + constraint + " " + results.count);
if (results != null && results.count > 0) {
ArrayList<Map> filteredList = (ArrayList<Map>) results.values;
clear();
for (Map c : filteredList) {
add(c);
Log.d("VRIPlacesFilter", "Publish " + c.get(key));
}
}
if (results.count > 0) {
notifyDataSetChanged();
} else {
}
}
};
}
Install Auto Kit Adapter for TextView
List<Map<String, String>> places = new ArrayList<Map<String, String>>();
Map<String, String> map = new HashMap<String, String>();
map.put("description", "My place");
map.put("description", "Her place");
map.put("description", "Our place");
map.put("description", "There place");
map.put("description", "The place");
places.add(map);
PlacesAdapter adapter = new PlacesAdapter(getBaseContext(), R.layout.auto_complete, R.id.vriPlace, places);
AutoCompleteTextView myAuto = new AutoCompleteTextView();
myAuto.setAdapter(adapter);
And for the Layout auto_complete.xml adapter, I have the following.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/vriPlace"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textStyle="bold"
android:textColor="#ff7e00"
android:textAppearance="?android:attr/textAppearanceLarge"
/>
</LinearLayout>
Hope this helps.