Support searching with 'contains' instead 'startWith'

searchablespinnerlibrary/src/main/java/com/toptoche/searchablespinnerlibrary/SearchableAdapter.java

@@ -0,0 +1,69 @@
+package com.toptoche.searchablespinnerlibrary;
+
+import android.content.Context;
+import android.widget.ArrayAdapter;
+import android.widget.Filter;
+import android.widget.Filterable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SearchableAdapter extends ArrayAdapter<String> implements Filterable {
+
+    private ArrayList<String> items;
+    private ArrayList<String> filteredItems;
+
+    SearchableAdapter(Context context, int resource, ArrayList<String> objects) {
+        super(context, resource, objects);
+        this.items = objects;
+        this.filteredItems = objects;
+    }
+
+    @Override
+    public int getCount() {
+        return filteredItems.size();
+    }
+
+    @Override
+    public String getItem(int position) {
+        return filteredItems.get(position);
+    }
+
+    private List<String> getAllItems() {
+        return items;
+    }
+
+    @Override
+    public Filter getFilter() {
+        Filter filter = new Filter() {
+            @Override
+            protected FilterResults performFiltering(CharSequence constraint) {
+                FilterResults results = new FilterResults();
+                ArrayList<String> filteredItems = new ArrayList<>();
+                List<String> items = getAllItems();
+
+                if (constraint == null || constraint.length() == 0) {
+                    results.values = items;
+                    results.count = items.size();
+                } else {
+                    for (String item : items) {
+                        if (item.toLowerCase().contains(constraint.toString().toLowerCase())) {
+                            filteredItems.add(item);
+                        }
+                    }
+                    results.values = filteredItems;
+                    results.count = filteredItems.size();
+                }
+
+                return results;
+            }
+
+            @Override
+            protected void publishResults(CharSequence constraint, FilterResults results) {
+                filteredItems = (ArrayList<String>) results.values;
+                notifyDataSetChanged();
+            }
+        };
+        return filter;
+    }
+}

searchablespinnerlibrary/src/main/java/com/toptoche/searchablespinnerlibrary/SearchableListDialog.java

@@ -14,19 +14,19 @@
 import android.view.WindowManager;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.AdapterView;
-import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.SearchView;
 
 import java.io.Serializable;
+import java.util.ArrayList;
 import java.util.List;
 
 public class SearchableListDialog extends DialogFragment implements
         SearchView.OnQueryTextListener, SearchView.OnCloseListener {
 
     private static final String ITEMS = "items";
 
-    private ArrayAdapter listAdapter;
+    private SearchableAdapter listAdapter;
 
     private ListView _listViewItems;
 
@@ -152,12 +152,12 @@ private void setData(View rootView) {
         mgr.hideSoftInputFromWindow(_searchView.getWindowToken(), 0);
 
 
-        List items = (List) getArguments().getSerializable(ITEMS);
+        ArrayList items = (ArrayList) getArguments().getSerializable(ITEMS);
 
         _listViewItems = (ListView) rootView.findViewById(R.id.listItems);
 
         //create the adapter by passing your ArrayList data
-        listAdapter = new ArrayAdapter(getActivity(), android.R.layout.simple_list_item_1,
+        listAdapter = new SearchableAdapter(getActivity(), android.R.layout.simple_list_item_1,
                 items);
         //attach the adapter to the list
         _listViewItems.setAdapter(listAdapter);
@@ -196,9 +196,9 @@ public boolean onQueryTextChange(String s) {
 //        listAdapter.filterData(s);
         if (TextUtils.isEmpty(s)) {
 //                _listViewItems.clearTextFilter();
-            ((ArrayAdapter) _listViewItems.getAdapter()).getFilter().filter(null);
+            listAdapter.getFilter().filter(null);
         } else {
-            ((ArrayAdapter) _listViewItems.getAdapter()).getFilter().filter(s);
+            listAdapter.getFilter().filter(s);
         }
         if (null != _onSearchTextChanged) {
             _onSearchTextChanged.onSearchTextChanged(s);