如何使用listview和複選框？

我有我的適配器類getView方法如下：如何使用listview和複選框？

public View getView(int position, View convertView, ViewGroup parent) { 
View view = null; 
if (convertView == null) { 
    LayoutInflater inflator = context.getLayoutInflater(); 
    view = inflator.inflate(R.layout.userlist, null); 
    final ViewHolder viewHolder = new ViewHolder(); 
    viewHolder.text2 = (TextView) view.findViewById(R.id.stuname); 
    viewHolder.text = (TextView) view.findViewById(R.id.rollno); 
    viewHolder.checkbox = (CheckBox) view.findViewById(R.id.cb); 
    viewHolder.checkbox 
     .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { 

     @Override 
     public void onCheckedChanged(CompoundButton buttonView, 
      boolean isChecked) { 
      Model element = (Model) viewHolder.checkbox 
       .getTag(); 
      element.setSelected(buttonView.isChecked()); 
      // Toast.makeText(getContext(), "Checked", 
        // Toast.LENGTH_SHORT).show(); 


     } 
     }); 
    view.setTag(viewHolder); 
    viewHolder.checkbox.setTag(list.get(position)); 
} else { 
    view = convertView; 
    ((ViewHolder) view.getTag()).checkbox.setTag(list.get(position)); 
} 
ViewHolder holder = (ViewHolder) view.getTag(); 
holder.text.setText(list.get(position).getName()); 
holder.text2.setText(list.get(position).getRoll()); 
holder.checkbox.setChecked(list.get(position).isSelected()); 
return view; 
}

有一個oncheckedchange聽衆在這裏。

我的問題是如何傳遞信息，如列表項已更改爲我的主要活動？當複選框狀態發生變化時，我們還可以在主要活動中執行某些操作？

來源

2013-05-02 DoYou EvenLift