搜索时未选中自定义适配器复选框

Question

我面临这个问题，即当我检查某个项目并在此后搜索该名称时，该复选框变为未选中状态。

我希瑟

检查它是否被选中我搜索

之后我怎么能保证我搜索后项目仍然会检查？

CustomAdapter.java

import android.app.Activity; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.ArrayAdapter; 
import android.widget.CheckBox; 
import android.widget.CompoundButton; 
import android.widget.Filter; 
import android.widget.Filterable; 
import android.widget.ImageView; 
import android.widget.TextView; 
import java.util.ArrayList; 

public class CustomAdapter extends ArrayAdapter<Contact> implements Filterable { 

    private final Activity context; 
    private ArrayList<Contact> contacts; 
    ArrayList<Contact> stringFilterList; 
    ValueFilter valueFilter; 

    private static class ViewHolder { 
     TextView name; 
     TextView phoneno; 
     CheckBox checkBox; 
     ImageView photo; 

    } 

    public CustomAdapter(Activity context, ArrayList<Contact> contacts) { 
     super(context, R.layout.custom, contacts); 
     //super(context, R.layout.custom, contacts); 
     this.context = context; 
     this.contacts = contacts; 
     this.stringFilterList = contacts; 
    } 

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

    /*@Override 
    public String getItem(int position) { 

     return contacts.get(position).getName(); 
    } 

    @Override 
    public long getItemId(int position) { 
     return contacts.indexOf(getItem(position)); 
    }*/ 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 

     ViewHolder viewHolder; 
     if (convertView == null) { 
      LayoutInflater inflater = context.getLayoutInflater(); 
      convertView = inflater.inflate(R.layout.custom, null); 
      viewHolder = new ViewHolder(); 
      viewHolder.name = (TextView) convertView.findViewById(R.id.name); 
      viewHolder.phoneno = (TextView) convertView.findViewById(R.id.phoneno); 
      viewHolder.checkBox = (CheckBox) convertView.findViewById(R.id.checkBox); 
      viewHolder.photo = (ImageView) convertView.findViewById(R.id.photo); 

      viewHolder.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { 

       @Override 
       public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
        int getPosition = (Integer) buttonView.getTag(); // Here we get the position that we have set for the checkbox using setTag. 
        contacts.get(getPosition).setSelected(buttonView.isChecked()); // Set the value of checkbox to maintain its state. 


        //stringFilterList.get(getPosition).setSelected(buttonView.isChecked()); 
       } 
      }); 

      convertView.setTag(viewHolder); 
      convertView.setTag(R.id.name, viewHolder.name); 
      convertView.setTag(R.id.phoneno, viewHolder.phoneno); 
      convertView.setTag(R.id.photo, viewHolder.photo); 
      convertView.setTag(R.id.checkBox, viewHolder.checkBox); 

     } 
      viewHolder = (ViewHolder) convertView.getTag(); 


     viewHolder.checkBox.setTag(position); // This line is important. 

     viewHolder.name.setText(contacts.get(position).getName()); 
     viewHolder.phoneno.setText(contacts.get(position).getPhoneNo()); 
     viewHolder.photo.setImageResource(R.drawable.photo); 
     viewHolder.checkBox.setChecked(contacts.get(position).isSelected()); 
     return convertView; 
    } 

    @Override 
    public Filter getFilter() { 
     if (valueFilter == null) { 
      valueFilter = new ValueFilter(); 
     } 
     return valueFilter; 
    } 

    private class ValueFilter extends Filter { 
     @Override 
     protected FilterResults performFiltering(CharSequence constraint) { 
      FilterResults results = new FilterResults(); 

      if (constraint != null && constraint.length() > 0) { 
       ArrayList<Contact> filterList = new ArrayList<Contact>(); 
       for (int i = 0; i < stringFilterList.size(); i++) { 
        if ((stringFilterList.get(i).getName().toUpperCase()).contains(constraint.toString().toUpperCase())) { 
         Contact contact = new Contact(stringFilterList.get(i).getName(), stringFilterList.get(i).getPhoneNo()); 
         filterList.add(contact); 


        } 
       } 
       results.count = filterList.size(); 
       results.values = filterList; 
      } else { 
       results.count = stringFilterList.size(); 
       results.values = stringFilterList; 
      } 
      return results; 

     } 

     @Override 
     protected void publishResults(CharSequence constraint, FilterResults results) { 
      contacts = (ArrayList<Contact>) results.values; 
      notifyDataSetChanged(); 
     } 
    } 
} 

Answer 1

更新您的ValueFilter如下

private class ValueFilter extends Filter { 
     @Override 
     protected FilterResults performFiltering(CharSequence constraint) { 
      FilterResults results = new FilterResults(); 

      if (constraint != null && constraint.length() > 0) { 
       ArrayList<Contact> filterList = new ArrayList<Contact>(); 
       for (int i = 0; i < stringFilterList.size(); i++) { 
        if ((stringFilterList.get(i).getName().toUpperCase()).contains(constraint.toString().toUpperCase())) { 
         Contact contact = new Contact(stringFilterList.get(i).getName(), stringFilterList.get(i).getPhoneNo(),**stringFilterList.get(i).isSelected**); 
         filterList.add(contact); 


        } 
       } 
       results.count = filterList.size(); 
       results.values = filterList; 
      } else { 
       results.count = stringFilterList.size(); 
       results.values = stringFilterList; 
      } 
      return results; 

     } 

isSelected值添加到您的新的联系人列表。

Answer 2

搜索后，当前视图将等于0的位置让看到

contacts.get(position).isSelected() 

返回true或false。