複選框在列表視圖過濾搜索後改變位置

Question

我過濾搜索後checkbox改變位置，我不明白爲什麼 我會在過濾列表中選中一個多項目：

現在我將清除過濾器，結果會是這樣的：

過濾器和checkbox工作正常，只有當我過濾結果，並點擊checkbox仍然在頂部？

這裏是我的代碼：

 protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.choosegroup); 

     getAllContacts(this.getContentResolver()); 
     friends = (ListView) findViewById(R.id.listView); 
     ma = new MyAdapter(); 
     friends.setAdapter(ma); 
     friends.setOnItemClickListener(this); 
     friends.setItemsCanFocus(false); 
     friends.setTextFilterEnabled(true); 
     // adding 
     toolbar = (Toolbar) findViewById(R.id.tool_bar4); 
     setSupportActionBar(toolbar); 
     getSupportActionBar().setDisplayHomeAsUpEnabled(true); 

     Intent i = getIntent(); 
     groupname = i.getStringExtra("name"); 

     search = (EditText) findViewById(R.id.editText12); 

     but = (Button) toolbar.findViewById(R.id.buttonz); 
     but.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       StringBuilder checkedcontacts = new StringBuilder(); 
       System.out.println("..." + ma.mCheckStates.size()); 
       for (int i = 0; i < phno1.size(); i++) { 
        if (ma.mCheckStates.get(i) == true) { 
         checkedcontacts.append(phno1.get(i).toString()); 
         checkedcontacts.append("\n"); 
        } else { 
//      System.out.println("Not Checked.." + phno1.get(i).toString()); 
        } 
       } 
       Toast.makeText(Choosegroup.this, checkedcontacts, Toast.LENGTH_LONG).show(); 
      } 
     }); 
     friends.setEmptyView(findViewById(R.id.emptyElement5)); 
     friends.setOnTouchListener(new View.OnTouchListener() { 
      @Override 
      public boolean onTouch(View v, MotionEvent event) { 
       int action = event.getAction(); 
       switch (action) { 
        case MotionEvent.ACTION_DOWN: 
         // Disallow ScrollView to intercept touch events. 
         v.getParent().requestDisallowInterceptTouchEvent(true); 
         break; 

        case MotionEvent.ACTION_UP: 
         // Allow ScrollView to intercept touch events. 
         v.getParent().requestDisallowInterceptTouchEvent(false); 
         break; 
       } 
       return false; 
      } 
     }); 
     search.addTextChangedListener(new TextWatcher() { 

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

      } 

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

      @Override 
      public void afterTextChanged(Editable s) { 
       Log.d("tag", "*** Search value changed: " + s.toString()); 
       ma.getFilter().filter(s.toString()); 
       ma.notifyDataSetChanged(); 
      } 
     }); 
    } 
    @Override 
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 
     // TODO Auto-generated method stub 
     ma.toggle(arg2); 
    } 

    public void getAllContacts(ContentResolver cr) { 

     String sortOrder = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " COLLATE LOCALIZED ASC"; 
     Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, sortOrder); 
     while (phones.moveToNext()) 
     { 
      String name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); 
      String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 
      System.out.println("..."+phoneNumber); 
      name1.add(name); 
      phno1.add(phoneNumber); 
     } 
     phones.close(); 

    } 
    class MyAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener 
    { private SparseBooleanArray mCheckStates; 
     private Context mContext; 
     List<String> mOriginalValues; // Original Values 
     LayoutInflater mInflater; 
     TextView tv1,tv; 
     CheckBox cb; 
     MyAdapter() 
     { 
      mCheckStates = new SparseBooleanArray(); 
      mInflater = (LayoutInflater)Choosegroup.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     } 
     @Override 
     public int getCount() { 
      // TODO Auto-generated method stub 
      return name1.size(); 
     } 

     @Override 
     public Object getItem(int position) { 
      // TODO Auto-generated method stub 
      return name1.get(position); 
     } 

     @Override 
     public long getItemId(int position) { 
      // TODO Auto-generated method stub 
      return position; 
     } 
     class ViewHolder { 
      protected TextView tv1,tv; 
      protected CheckBox cb; 
     } 
     @Override 
     public View getView(final int position, View convertView, ViewGroup parent) { 
      // TODO Auto-generated method stub 
      ViewHolder viewHolder; 
      if(convertView==null){ 
       convertView = mInflater.inflate(R.layout.groupuser, null); 
       viewHolder = new ViewHolder(); 
       viewHolder.tv = (TextView) convertView.findViewById(R.id.textView32); 
       viewHolder.tv1 = (TextView) convertView.findViewById(R.id.textView33); 
       viewHolder.cb = (CheckBox) convertView.findViewById(R.id.checkBox); 
       convertView.setTag(viewHolder); 
      } else { 
       viewHolder = (ViewHolder) convertView.getTag(); 
      } 

      viewHolder.tv.setText(name1.get(position)); 
      viewHolder.tv1.setText(phno1.get(position)); 
      viewHolder.cb.setTag(position); 
      viewHolder.cb.setChecked(mCheckStates.get(position)); 
      viewHolder.cb.setOnCheckedChangeListener(this); 

      return convertView; 
     } 
     public boolean isChecked(int position) { 
      return mCheckStates.get(position, false); 
     } 

     public void setChecked(int position, boolean isChecked) { 
      mCheckStates.put(position, isChecked); 
      System.out.println("hello..."); 
      ma.notifyDataSetChanged(); 
     } 

     public void toggle(int position) { 
      setChecked(position, !isChecked(position)); 
     } 
     @Override 
     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
      // TODO Auto-generated method stub 
      mCheckStates.put((Integer) buttonView.getTag(), isChecked); 
     } 

     public android.widget.Filter getFilter() { 
      return new android.widget.Filter() { 
       @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 (mOriginalValues == null) 
        { 
         System.out.println(""); 
         mOriginalValues = new ArrayList<String>(name1); // 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 = mOriginalValues.size(); 
         results.values = mOriginalValues; 
        } 
        else 
        { 
         constraint = constraint.toString().toLowerCase(); 
         for (int i = 0; i < mOriginalValues.size(); i++) 
         { 
          String data = mOriginalValues.get(i); 
          if (data.toLowerCase().startsWith(constraint.toString().toLowerCase())) 
          { 
           FilteredArrList.add(mOriginalValues.get(i)); 
          } 
         } 
         // set the Filtered result to return 
         results.count = FilteredArrList.size(); 
         results.values = FilteredArrList; 
        } 
        return results; 
       } 

       @Override 
       protected void publishResults(CharSequence constraint, FilterResults results) { 
        name1 = (List<String>) results.values; // has the filtered values 
        ma.notifyDataSetChanged(); 
       } 
      }; 
     } 
    } 
} 

Answer 1

通過這個鏈接，並嘗試這樣的代碼，

http://www.mysamplecode.com/2012/07/android-listview-checkbox-example.html