如何为自定义BaseAdapter创建方法getFilter（）

Question

在活动中我有列表和大量，我需要在我的列表中搜索。我想要在ActionBar中搜索。我在ActionBar中创建了图标并尝试在其中进行搜索，但我的适配器有问题，我不知道如何使用getFilter（）...这是活动代码：

public class Profile extends Activity {
...
private ListView prof;
private ArrayList<String> prof_item = new ArrayList<String>();
private String[] prof_inst;
MyProfieAdapter adapter;
RadioButton rbtn;
Menu menu;
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.profile);
    mSettings = getSharedPreferences(APP_PREFERENCES, Context.MODE_PRIVATE);
    String mString = mSettings.getString(APP_PREFERENCES_NAME, null);
    prof = (ListView) findViewById(R.id.profiles);
    prof_inst = getResources().getStringArray(R.array.inst);
    prof_item.add("11-101");
    prof_item.add("11-102");
    prof_item.add("11-201");
    prof_item.add("11-202");
    prof_item.add("11-203");
    prof_item.add("11-204");
    prof_item.add("11-205");
    prof_item.add("11-301");
    prof_item.add("11-302");
    prof_item.add("11-303");
    prof_item.add("11-304");
    prof_item.add("11-305");
    prof_item.add("11-306");
    adapter = new MyProfieAdapter(Profile.this, R.layout.profile_item,
            prof_item, prof_inst);
    prof.setAdapter(adapter);
    prof.setTextFilterEnabled(true);
    prof.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1,
                int position, long arg3) {
            Log.d("List", "Position is = " + position);
            Toast t = Toast.makeText(getApplicationContext(), "Position "
                    + position, Toast.LENGTH_LONG);
            t.show();
            rbtn = (RadioButton) arg1.findViewById(R.id.radioButton1);
            rbtn.setChecked(true);
            SharedPreferences.Editor editor = mSettings.edit();
            editor.putString(APP_PREFERENCES_NAME, prof_item.get(position)).commit();
            editor.apply();
            Log.d("Editor", editor.toString());

        }
    });
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case R.id.action_search:

        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView = (SearchView) menu.findItem(
                R.id.action_search).getActionView();

        searchView.setSearchableInfo(searchManager
                .getSearchableInfo(getComponentName()));
        searchView.setIconifiedByDefault(false);

        SearchView.OnQueryTextListener textChangeListener = new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextChange(String newText) {
                // this is your adapter that will be filtered
                 adapter.getFilter().filter(newText);
                System.out.println("on text change text: " + newText);
                return true;
            }

            @Override
            public boolean onQueryTextSubmit(String query) {
                // this is your adapter that will be filtered
                 adapter.getFilter().filter(query);
                System.out.println("on query submit: " + query);
                return true;
            }
        };
        searchView.setOnQueryTextListener(textChangeListener);
    }
    return super.onOptionsItemSelected(item);
}

这是我的适配器列表：

public class MyProfieAdapter extends BaseAdapter {

Activity context;
ArrayList<String> items;
String[] items2;
ViewHolder holder;
private boolean userSelected = false;
private RadioButton mCurrentlyCheckedRB;
RadioButton radioBtn;
TextView text;
TextView inst;

private class ViewHolder {
    RadioButton radioBtn;
    TextView text;
    TextView inst;
}

public MyProfieAdapter(Activity context, int profileItem, ArrayList<String> items,
        String[] items2) {
    super();
    this.items = items;
    this.items2 = items2;
    this.context = context;
}

public View getView(final int position, View convertView, ViewGroup parent) {
    holder = null;
    LayoutInflater mInflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    if (convertView == null) {
        convertView = mInflater.inflate(R.layout.profile_item, null);
        holder = new ViewHolder();
        radioBtn = (RadioButton) convertView
                .findViewById(R.id.radioButton1);
        radioBtn.setFocusable(false);
        text = (TextView) convertView.findViewById(R.id.profile_text);
        convertView.setTag(holder);
        inst = (TextView) convertView.findViewById(R.id.textgroup);
        convertView.setTag(holder);
    } else
        holder = (ViewHolder) convertView.getTag();

    if (position == getCount() - 1 && userSelected == false) {
        mCurrentlyCheckedRB = radioBtn;
    } else {
        radioBtn.setChecked(false);
    }

    radioBtn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {

            if (mCurrentlyCheckedRB != null) {
                mCurrentlyCheckedRB.setChecked(true);
                Log.d("ListSelect", "Position is " + position + " "
                        + items.get(position));
            }

            if (mCurrentlyCheckedRB == v)
                return;

            mCurrentlyCheckedRB.setChecked(false);
            ((RadioButton) v).setChecked(true);
            mCurrentlyCheckedRB = (RadioButton) v;
        }
    });

    text.setText(items.get(position));
    inst.setText(items2[position]);
    return convertView;
}

请帮帮我。我没有任何想法......