Пользовательский ListView с фильтром на textChanged

Question

Я нашел много вопросов и ответов, связанных с моей проблемой. Но я не могу с этим справиться. У меня есть ListView, в котором отображаются все данные из БД. Теперь я должен отфильтровать из этого списка, когда я набираю буквы в editext. Фильтр, который я пытался, всегда показывал ошибку в классе Filter и FilterResult. Я пытаюсь найти решение со вчерашнего дня. Я знаю, что я что-то делаю неправильно, но я не могу найти, что это и где. Как исправить этот фильтр в моем коде.

Показать все данные из БД:

private void getAdapterView() { 
    List<NewCustomerGetSetter> cont = ncdbh.getAllCustomerBikeWithStatusOfP(); // Get all the value from DB 
    for (NewCustomerGetSetter cn : cont) { 
     cust_name.add(cn.getName()); //Below all are List 
     cust_mobile.add(cn.getMobile1()); 
     vehicle_number.add(cn.getBikeNo()); 
     from_date.add(cn.getFromDate()); 
     to_date.add(cn.getToDate()); 
     days.add(cn.getTotalDays()); 
     amount.add(cn.getTotalCost()); 

     Log.d(cn.getID()+"",cn.getName()+" "+cn.getMobile1()+" "+count); 
     count++; 
    } 
    // Pass values to custom Adapter 
    list_return.setAdapter(new ReturnVehicleCustomAdapter(this, cust_name, cust_mobile, vehicle_number,from_date,to_date,days,amount));  
} 

AfterTextChanged Функция

search.addTextChangedListener(new TextWatcher() { 

    @Override 
    public void afterTextChanged(Editable arg0) { 
     //Not coded. Depends on Shorted filter problem Solved need to think how to pass/ call that filter. 
    } 

    @Override 
    public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) { 
    } 

    @Override 
    public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) { 
    } 
}); 

Пользовательский адаптер Класс:

public class ReturnVehicleCustomAdapter extends BaseAdapter{ 
    private Filter mFilter; 
    //ReturnVehicle rv = new ReturnVehicle(); 
    List<String> cust_mobile = new ArrayList<String>(); 
    List<String> vehicle_number = new ArrayList<String>(); 
    List<String> cust_name = new ArrayList<String>(); 
    List<String> cust_from = new ArrayList<String>(); 
    List<String> cust_to = new ArrayList<String>(); 
    List<String> cust_days = new ArrayList<String>(); 
    List<String> cust_amount = new ArrayList<String>(); 
    Context context, context1; 

    private LayoutInflater inflater = null; 

    public ReturnVehicleCustomAdapter(ReturnVehicle vehicleMasterClass, List<String> cust_name_, 
      List<String> cust_mobile_, List<String> vehicle_number_,List<String> cust_from_, 
      List<String> cust_to_, List<String> cust_days_,List<String> vehicle_amount_) { 
     cust_name=cust_name_; 
     cust_mobile=cust_mobile_; 
     vehicle_number=vehicle_number_; 
     cust_to=cust_to_; 
     cust_from=cust_from_; 
     cust_days=cust_days_; 
     cust_amount=vehicle_amount_; 
     context=vehicleMasterClass; 
     inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    public ReturnVehicleCustomAdapter(ReturnVehicle returnVehicle) { 
    } 

    @Override 
    public int getCount() { 
     return cust_mobile.size(); 
    } 

    @Override 
    public Object getItem(int position) { 
     // TODO Auto-generated method stub 
     return position; 
    } 

    @Override 
    public long getItemId(int position) { 
     // TODO Auto-generated method stub 
     return position; 
    } 

    public class Holder1 { 
     TextView tv; 
     TextView tv1; 
     TextView tv2; 
    } 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     // TODO Auto-generated method stub 
     final Object[] cust_mobile_obj = cust_mobile.toArray(); 
     final Object[] vehicle_number_obj = vehicle_number.toArray(); 
     final Object[] cust_name_obj = cust_name.toArray(); 
     final Object[] cust_from_obj = cust_from.toArray(); 
     final Object[] cust_to_obj = cust_to.toArray(); 
     final Object[] cust_days_obj = cust_days.toArray(); 
     final Object[] cust_amount_obj = cust_amount.toArray(); 
     Holder1 holder1 = new Holder1(); 
     View rowView1 = inflater.inflate(R.layout.return_custom_listview, null); 
     holder1.tv = (TextView) rowView1.findViewById(R.id.r_name); 
     holder1.tv1 = (TextView) rowView1.findViewById(R.id.r_mobile); 
     holder1.tv2 = (TextView) rowView1.findViewById(R.id.r_bike); 
     cust_mobile.toString(); 
     holder1.tv.setText((CharSequence) vehicle_number_obj[position]); 
     holder1.tv1.setText((CharSequence) cust_name_obj[position]); 
     holder1.tv2.setText((CharSequence) cust_mobile_obj[position]); 

     rowView1.setOnClickListener(new OnClickListener() {    
      @Override 
      public void onClick(View v) { 
       ((ReturnVehicle) context).name_ = cust_name_obj[position].toString(); 
       ((ReturnVehicle) context).mobile_ = cust_mobile_obj[position].toString(); 
       ((ReturnVehicle) context).bike1 = vehicle_number_obj[position].toString(); 
       ((ReturnVehicle) context).from_date1 = cust_from_obj[position].toString(); 
       ((ReturnVehicle) context).to_date1 = cust_to_obj[position].toString(); 
       ((ReturnVehicle) context).days1 = cust_days_obj[position].toString(); 
       ((ReturnVehicle) context).amount1 = cust_amount_obj[position].toString(); 
       ((ReturnVehicle) context).name.setText(((ReturnVehicle)context).name_); 
       ((ReturnVehicle) context).mobile.setText(((ReturnVehicle)context).mobile_); 
       ((ReturnVehicle) context).bike.setText(((ReturnVehicle)context).bike1); 
       ((ReturnVehicle) context).from.setText(((ReturnVehicle)context).from_date1); 
       ((ReturnVehicle) context).eto.setText(((ReturnVehicle)context).to_date1); 
       ((ReturnVehicle) context).tdays.setText(((ReturnVehicle)context).days1); 
       ((ReturnVehicle) context).price.setText(((ReturnVehicle)context).amount1); 
       ((ReturnVehicle) context).extend.setText(((ReturnVehicle)context).df.format(((ReturnVehicle) context).c.getTime()).toString()); 
       ((ReturnVehicle)context).diffDateSet(); 
       //Toast.makeText(context, "You Clicked "+cust_mobile_obj[position], Toast.LENGTH_LONG).show(); 
      } 
     }); 
     return rowView1; 
    } 

    @Override 
    public Filter getFilter() { 
     return new Filter() { 
      @SuppressWarnings("unchecked") 
      @Override 
      protected void publishResults(CharSequence constraint, FilterResults results) { 
       Log.d("", "**** PUBLISHING RESULTS for: " + constraint); 
       vehicle_number = (List<String>) results.values; 
       ReturnVehicleCustomAdapter.this.notifyDataSetChanged(); 
      } 

      @Override 
      protected FilterResults performFiltering(CharSequence constraint) { 
       Log.d("", "**** PERFORM FILTERING for: " + constraint); 
       List<String> filteredResults = getFilteredResults(constraint); 

       FilterResults results = new FilterResults(); 
       results.values = filteredResults; 

       return results; 
      } 

      private List<String> getFilteredResults(CharSequence constraint) { 
       if (constraint.length() == 0) { 
        return vehicle_number; 
       } 
       List<String> listResult = new ArrayList<String>(); 
       for (String obj : vehicle_number){ 
        // if (condition){ 
         listResult.add(obj); 
        // } 
       } 
       return listResult; 
      } 
     }; 
    } 
} 

Answer 1

Я чувствовал SimpleCursorAdapter было трудно реализовать. Поэтому я нашел решение для фильтрации методом Filter. Ниже приведен код.

@Override 
public Filter getFilter() { 
    if(valueFilter==null) { 
     valueFilter=new ValueFilter(); 
    } 
    return valueFilter; 
} 
/**This class do all the filters*/ 
private class ValueFilter extends Filter { 
    /**Invoked in a worker thread to filter the data according to the constraint.*/ 
    @Override 
    protected FilterResults performFiltering(CharSequence constraint) { 
     FilterResults results=new FilterResults(); 
     if(constraint!=null && constraint.length()>0){ 
      ArrayList<ReturnVehicleListValueGetSet> filterList=new ArrayList<ReturnVehicleListValueGetSet>(); 
      for(int i=0;i<filter_list.size();i++){ 
       if((filter_list.get(i).getName().toUpperCase()).contains(constraint.toString().toUpperCase())) { 
        ReturnVehicleListValueGetSet contacts = new ReturnVehicleListValueGetSet(); 
        contacts.setName(filter_list.get(i).getName()); 
        contacts.setMob(filter_list.get(i).getMob()); 
        contacts.setVehNum(filter_list.get(i).getVehNum()); 
        filterList.add(contacts); 
       } 
      } 
      results.count=filterList.size(); 
      results.values=filterList; 
     }else{ 
      results.count=filter_list.size(); 
      results.values=filter_list; 
     } 
     return results; 
    } 

    /**Invoked in the UI thread to publish the filtering results in the user interface.*/ 
    @SuppressWarnings("unchecked") 
    @Override 
    protected void publishResults(CharSequence constraint,FilterResults results) { 
     veh_list=(ArrayList<ReturnVehicleListValueGetSet>) results.values; 
     notifyDataSetChanged(); 
    } 
}