Как фильтровать вид списка ящика?

Question

У моего приложения есть ящик, который содержит пользовательский просмотр списка. Каждый элемент списка имеет один значок и текстовое представление. Поэтому я хочу фильтровать элементы на основе текста в текстовом виде. Заранее спасибо

Answer 1

я обеспечиваю здесь пример кода для фильтрации адаптер:

Вот list_item.xml:

<?xml version="1.0" encoding="utf-8"?> 
<TextView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/list_view" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:padding="10dp" 
    android:textSize="16sp" > 

</TextView> 

Вот SearchableAdapter.java:

import java.util.ArrayList; 
import java.util.List; 

import android.content.Context; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.Filter; 
import android.widget.Filterable; 
import android.widget.TextView; 

// The standard text view adapter only seems to search from the beginning of whole words 
// so we've had to write this whole class to make it possible to search 
// for parts of the arbitrary string we want 
public class SearchableAdapter extends BaseAdapter implements Filterable { 

    private List<String>originalData = null; 
    private List<String>filteredData = null; 
    private LayoutInflater mInflater; 
    private ItemFilter mFilter = new ItemFilter(); 

    public SearchableAdapter(Context context, List<String> data) { 
     this.filteredData = data ; 
     this.originalData = data ; 
     mInflater = LayoutInflater.from(context); 
    } 

    public int getCount() { 
     return filteredData.size(); 
    } 

    public Object getItem(int position) { 
     return filteredData.get(position); 
    } 

    public long getItemId(int position) { 
     return position; 
    } 

    public View getView(int position, View convertView, ViewGroup parent) { 
     // A ViewHolder keeps references to children views to avoid unnecessary calls 
     // to findViewById() on each row. 
     ViewHolder holder; 

     // When convertView is not null, we can reuse it directly, there is no need 
     // to reinflate it. We only inflate a new View when the convertView supplied 
     // by ListView is null. 
     if (convertView == null) { 
      convertView = mInflater.inflate(R.layout.list_item, null); 

      // Creates a ViewHolder and store references to the two children views 
      // we want to bind data to. 
      holder = new ViewHolder(); 
      holder.text = (TextView) convertView.findViewById(R.id.list_view); 

      // Bind the data efficiently with the holder. 

      convertView.setTag(holder); 
     } else { 
      // Get the ViewHolder back to get fast access to the TextView 
      // and the ImageView. 
      holder = (ViewHolder) convertView.getTag(); 
     } 

     // If weren't re-ordering this you could rely on what you set last time 
     holder.text.setText(filteredData.get(position)); 

     return convertView; 
    } 

    static class ViewHolder { 
     TextView text; 
    } 

    public Filter getFilter() { 
     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 = originalData; 

      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(); 
     } 

    } 
} 

Я представил эту демку от here.

За дополнительной информацией просьба ознакомиться с ней.

Thanks