在ArrayAdapter中实现getFilter（）android listview

Question

在我的列表视图中有四个文本视图和图像。

我想设置过滤器上txtcompany文本视图

我想实现一个用getFilter（），但它提供了一个错误的结果

请帮助我如何能在列表视图

实现用getFilter（）

列表视图ArrayAdapter源代码
类数据延伸ArrayAdapter {

  Button imageView; 
      TextView txtcompany; 
      TextView txtDesc; 
      TextView txtPosition; 
      TextView txtState; 
      TextView txtCity; 
      String[] companyarray; 
      String[] positonarray; 
      String[] cityarray; 
      String[] statearray; 
      String[] Descarray; 
      String[] contry; 
      String[] pass; 
      ArrayList<String> receiceValueOfAdapter=new ArrayList<String>(6); 
      ArrayList<String> time=new ArrayList<String>(6); 
     Context context; 
     Data(Context c, String[] company, String[] position, String[] city, String[] state,ArrayList<String> receiveValue, String[] Desc,ArrayList<String> time1, 
       String[] pass,String[] contry) 
     { 
      super(c,R.layout.list_item,R.id.txt_company,company); 
      this.context=c; 
      this.pass=pass; 
      this.companyarray=company; 
      this.positonarray=position; 
      this.cityarray=city; 
      this.statearray=state; 
      this.receiceValueOfAdapter=receiveValue; 
      this.Descarray=Desc; 
      this.time=time1; 
      this.contry=contry; 
     } 
     public View getView(int position, View convertView, ViewGroup parent) { 
      final String description; 
      String upperString=""; 
      LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 
      View row; 
      row=mInflater.inflate(R.layout.list_item, parent,false); 
      txtcompany = (TextView) row.findViewById(R.id.txt_company); 
      imageView = (Button) row.findViewById(R.id.img); 
      //imageView.setVisibility(View.INVISIBLE); 
      txtPosition= (TextView) row.findViewById(R.id.txt_position); 
      txtCity= (TextView) row.findViewById(R.id.txt_city); 
      txtState= (TextView) row.findViewById(R.id.txt_state); 

      if(companyarray[position].toString().length()>0) 
      upperString = companyarray[position].substring(0,1).toUpperCase() + companyarray[position].substring(1); 
      txtcompany.setText(" "+upperString); 
      txtPosition.setText(" "+positonarray[position]); 
      Log.d("City",statearray[position]+"City "+cityarray[position]); 
      if(cityarray[position].toString().length()==0) 
      { 
       txtCity.setText(statearray[position]); 

      } 
      if(statearray[position].toString().trim().length()==0) 
      { 
       txtCity.setText(" "+cityarray[position]); 
      } 
      if(statearray[position].toString().trim().length()<2 && cityarray[position].toString().trim().length()<2) 
      { 
       txtCity.setText(" "+contry[position]); 

      } 

      if(statearray[position].toString().trim().length()>=2 && cityarray[position].toString().trim().length()>=2) 
      { 

       txtCity.setText(" "+cityarray[position]+", "+statearray[position]); 
      } 

      txtState.setText(""+time.get(position)); 
      imageView.setTag(receiceValueOfAdapter.get(position)); 

      description= Descarray[position]; 
      final int l=position; 
      imageView.setOnClickListener(new OnClickListener() { 
        @Override 
        public void onClick(final View v) { 
        // Toast.makeText(contect, ""+ txtPosition.getText().toString(), Toast.LENGTH_LONG).show(); 


         try{ 
          String strurl1=pass[l].trim(); 
          String strurl= strurl1.trim(); 
          if (!strurl.trim().startsWith("https://") && !strurl.trim().startsWith("http://")){ 
           strurl = "http://"+ strurl; 
          } 
         Intent ii = new Intent(Intent.ACTION_VIEW); 
         ii.setData(null); 
         ii.setData(Uri.parse(strurl)); 
         startActivity(ii); 

         } 
         catch(Exception e) 
         { 

         } 


        } 
       }); 
      return row; 
     } 
    } 

的EditText变化监听器java代码

lstsearch.addTextChangedListener(new TextWatcher() 
       { 
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) 
        { 

        } 

        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) 
        { 
         Main_listview.this.datadap.getFilter().filter(charSequence); 
        } 

        public void afterTextChanged(Editable editable) 
        { 


        } 
       }); 

Answer 1

您可以创建一个这样的自定义方法。

public void filter(String charText,int flag) 

{ 
    if(flag==0){ 
charText = charText.toLowerCase(Locale.getDefault()); 


if (charText.length() == 0) 

{ 

     ListofDetails.addAll(arraylist); 

    } 
    else 
    { 
     for (ListofDetails wp : arraylist) 
     { 
      if (wp.getCountry().toLowerCase(Locale.getDefault()).contains(charText)) 
      { 
       NewList.add(wp); 
      } 
     } 
    } 


elseif 

{ 

///do some code 

} 

}