我正在使用custom adpater in AlertDialog
. 在那个适配器中,我正在使用TextView and CheckBox
..现在我想处理 CheckBoxsetOnCheckedChangeListener
以检查选中或未选中的 CheckBox..并且根据 CheckBox 的状态,我想实现一些代码。但是这个听众被解雇了不止一次。那我该如何处理呢?如果有人有想法,请建议我。
正是我的问题是当我选中复选框时,我想增加一些值,当我取消选中时,我想减少一些值。但我没有得到确切的总和值,如果我滚动,那么这个总和值会改变..所以我必须做什么?
以下是我的自定义 Adaper:
private class Updateinfo_ServiceAdapter extends BaseAdapter
{
@Override
public int getCount() {
// TODO Auto-generated method stub
return _options_services.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
Viewholder holder;
LayoutInflater inflater=getLayoutInflater();
if(convertView==null)
{
convertView=inflater.inflate(R.layout.row_updateinfo_service, null);
holder=new Viewholder();
holder.txtname=(TextView)convertView.findViewById(R.id.serviceName);
holder.chkSelected=(CheckBox)convertView.findViewById(R.id.chk);
convertView.setTag(holder);
}
else
{
holder=(Viewholder)convertView.getTag();
}
holder.txtname.setText(_options_services[position]);
holder.chkSelected.setChecked(_selections_services[position]);
holder.chkSelected.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
if (isChecked) {
allowServicesSum = allowServicesSum
+ Integer.parseInt((String) services[position]
.getSystemServiceID());
System.out.println("AllowService sum is "+allowServicesSum);
} else {
allowServicesSum = allowServicesSum
- Integer.parseInt((String) services[position]
.getSystemServiceID());
System.out.println("AllowService sum is "+allowServicesSum);
}
}
});
if(_selections_services[position])
{
holder.chkSelected.setEnabled(false);
}
else
{
holder.chkSelected.setEnabled(true);
}
return convertView;
}
private class Viewholder
{
TextView txtname;
CheckBox chkSelected;
}
}