アプリにリストビューがあります。これは次のようになります。
--img-- --ArrayListItems（names）--- --- TextView ----
アプリを下位互換性を持たせるために、検索ビューでアクションバーシャーロックを使用しています。ベースアダプタを拡張し、フィルタリング可能なものを実装するカスタムアダプタを使用しています。私が実際に必要としているのは、ユーザーが検索バーにテキストを入力すると、ArrayListItems（names）に基づいてリストビューをフィルタリングできるはずです。私はstackoverflowに関するいくつかの投稿を参照し、すべてのコードスニペットを試しました。しかし、それでも私は検索することができません。コードを実行すると、検索バーは何もしません。
私の活動では、次のことを行いました。
public class SearchViewActionBar extends SherlockActivity implements SearchView.OnQueryTextListener
{
public SearchView mSearchView;
private TextView mStatusView;
int mSortMode = -1;
protected CharSequence[] _options = { "Wild Life", "River", "Hill Station", "Temple", "Bird Sanctuary", "Hill", "Amusement Park"};
protected boolean[] _selections = new boolean[ _options.length ];
private final String[] mStrings = Cheeses.sCheeseStrings;
ListView lv1;
ItemListBaseAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
setContentView(R.layout.activity_main);
ArrayList<ItemDetails> image_details = GetSearchResults();
lv1= (ListView) findViewById(R.id.list_view);
adapter=new ItemListBaseAdapter(this, image_details);
lv1.setAdapter(adapter);
lv1.setTextFilterEnabled(true);
mSearchView = (SearchView) findViewById(R.id.action_search);
/*lv1.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> a, View v, int position, long id) {
Object o = lv1.getItemAtPosition(position);
ItemDetails obj_itemDetails = (ItemDetails)o;
//Toast.makeText(ListViewImagesActivity.this, "You have chosen : " + " " + obj_itemDetails.getName(), Toast.LENGTH_LONG).show();
}
});*/
}
private ArrayList<ItemDetails> GetSearchResults()
{
ArrayList<ItemDetails> results = new ArrayList<ItemDetails>();
for(int i=0;i<mStrings.length;i++)
{
ItemDetails item_details = new ItemDetails();
item_details.setName(mStrings[i]);
item_details.setItemDescription("200");
results.add(item_details);
}
return results;
}
private void setupSearchView() {
mSearchView.setIconifiedByDefault(true);
mSearchView.setOnQueryTextListener(this);
mSearchView.setSubmitButtonEnabled(false);
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
super.onCreateOptionsMenu(menu);
MenuInflater inflater = getSupportMenuInflater();
inflater.inflate(R.menu.searchview_in_menu, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
mSearchView = (SearchView) searchItem.getActionView();
setupSearchView();
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu)
{
if (mSortMode != -1)
{
//Drawable icon = menu.findItem(mSortMode).getIcon();
//menu.findItem(R.id.action_sort).setIcon(icon);
}
return super.onPrepareOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
switch (item.getItemId()) {
//case R.id.action_search:
//finish();
//getSupportActionBar().setDisplayShowHomeEnabled(false);
//getSupportActionBar().setDisplayShowTitleEnabled(false);
//System.out.println("search pressed");
//break;
case R.id.action_edit:
System.out.println("category pressed");
showDialog( 0 );
//finish();
break;
default:
//return super.onOptionsItemSelected(item);
break;
}
/*
String c="Category";
if(s.equals(c))
{
System.out.println("same");
;
}*/
//Toast.makeText(this, "Selected Item: " + item.getTitle(), Toast.LENGTH_SHORT).show();
return true;
}
protected Dialog onCreateDialog( int id )
{
return
new AlertDialog.Builder( this )
.setTitle( "Category" )
.setMultiChoiceItems( _options, _selections, new DialogSelectionClickHandler() )
.setPositiveButton( "SAVE", new DialogButtonClickHandler() )
.create();
}
public class DialogSelectionClickHandler implements DialogInterface.OnMultiChoiceClickListener
{
public void onClick( DialogInterface dialog, int clicked, boolean selected )
{
Log.i( "ME", _options[ clicked ] + " selected: " + selected );
}
}
public class DialogButtonClickHandler implements DialogInterface.OnClickListener
{
public void onClick( DialogInterface dialog, int clicked )
{
switch( clicked )
{
case DialogInterface.BUTTON_POSITIVE:
printSelectedPlanets();
break;
}
}
}
protected void printSelectedPlanets()
{
for( int i = 0; i < _options.length; i++ ){
Log.i( "ME", _options[ i ] + " selected: " + _selections[i] );
}
}
public void onSort(MenuItem item)
{
mSortMode = item.getItemId();
invalidateOptionsMenu();
}
public boolean onQueryTextChange(String newText)
{
/*ActionBar ab = getSupportActionBar();
ab.setDisplayShowTitleEnabled(false);
ab.setDisplayShowHomeEnabled(false);*/
//getSupportActionBar().setDisplayShowHomeEnabled(false);
//getSupportActionBar().setDisplayShowTitleEnabled(false);
if (TextUtils.isEmpty(newText))
{
System.out.println("empty query");
lv1.clearTextFilter();
}
else
{
//System.out.println(newText.toString());
adapter.getFilter().filter(newText);
//adapter.getFilter().filter(s);
//lv1.setFilterText(newText.toString());
}
return true;
}
public boolean onQueryTextSubmit(String query)
{
mStatusView.setText("Query = " + query + " : submitted");
return false;
}
public boolean onClose()
{
mStatusView.setText("Closed!");
return false;
}
protected boolean isAlwaysExpanded()
{
return false;
}
}
私のアダプタークラス：
public class ItemListBaseAdapter extends BaseAdapter implements Filterable
{
private static ArrayList<ItemDetails> itemDetailsrrayList,list;
private Integer[] imgid = {
//R.drawable.p1,
R.drawable.bb2,
/*R.drawable.p2,
R.drawable.bb5,
R.drawable.bb6,
R.drawable.d1*/
};
private LayoutInflater l_Inflater;
public ItemListBaseAdapter(Context context, ArrayList<ItemDetails> results) {
itemDetailsrrayList = results;
l_Inflater = LayoutInflater.from(context);
}
public int getCount() {
return itemDetailsrrayList.size();
}
public Object getItem(int position) {
return itemDetailsrrayList.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
ViewHolder holder;
if (convertView == null) {
convertView = l_Inflater.inflate(R.layout.item_details_view, null);
holder = new ViewHolder();
holder.txt_itemName = (TextView) convertView.findViewById(R.id.textView1);
holder.txt_itemDescription = (TextView) convertView.findViewById(R.id.textView2);
//holder.txt_itemPrice = (TextView) convertView.findViewById(R.id.phone);
holder.itemImage = (ImageView) convertView.findViewById(R.id.imageView1);
convertView.setTag(holder);
} else
{
holder = (ViewHolder) convertView.getTag();
}
holder.txt_itemName.setText(itemDetailsrrayList.get(position).getName());
//holder.txt_itemDescription.setText(itemDetailsrrayList.get(position).getItemDescription());
holder.txt_itemDescription.setText("200");
//holder.txt_itemPrice.setText(itemDetailsrrayList.get(position).getPrice());
//holder.itemImage.setImageResource(imgid[itemDetailsrrayList.get(position).getImageNumber() - 1]);
holder.itemImage.setImageResource(imgid[0]);
return convertView;
}
static class ViewHolder
{
TextView txt_itemName;
TextView txt_itemDescription;
//TextView txt_itemPrice;
ImageView itemImage;
}
public Filter getFilter()
{
Filter filter = new Filter() {
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,FilterResults results) {
list = (ArrayList<ItemDetails>) results.values; // has the filtered values
notifyDataSetChanged(); // notifies the data with new filtered values
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults results = new FilterResults(); // Holds the results of a filtering operation in values
List<String> FilteredArrList = new ArrayList<String>();
if (list == null) {
list = new ArrayList<ItemDetails>(list); // saves the original data in mOriginalValues
}
/********
*
* If constraint(CharSequence that is received) is null returns the mOriginalValues(Original) values
* else does the Filtering and returns FilteredArrList(Filtered)
*
********/
if (constraint == null || constraint.length() == 0) {
// set the Original result to return
results.count = list.size();
results.values = list;
} else {
constraint = constraint.toString().toLowerCase();
for (int i = 0; i < list.size(); i++)
{
String data="b";
//= list.getName(i);
if (data.toLowerCase().startsWith(constraint.toString())) {
FilteredArrList.add(data);
}
}
// set the Filtered result to return
results.count = FilteredArrList.size();
results.values = FilteredArrList;
}
return results;
}
};
return filter;
}
}