多次调用适配器getView

Question

我的 getView 被多次调用。我设置了listview的fill_parent宽度和fill_parent高度，但它不起作用。 见适配器代码：

public class CustomAdapter extends BaseAdapter implements OnCheckedChangeListener {
private Context ctx;
public ArrayList<Objects> listToSend;
private ViewHolder holder;
private TextView tv;
private LayoutInflater mInflater;


public AdapterOrderType(Context context, ArrayList<Objects> list) {
    this.ctx = context;
    this.listToSend = list;
    mInflater = (LayoutInflater)ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

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

@Override
public Object getItem(int position) {
    return listToSend.get(position);
}

@Override
public long getItemId(int position) {
    return position;
}

static class ViewHolder {
    private TextView tv;
    private LinearLayout ll;
}

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

    Object object = objects.get(position);

     ViewHolder holder = null;
     if (convertView == null) {
         convertView = mInflater.inflate(R.layout.item_objects, null);
         holder = new ViewHolder();

        holder.tv = (TextView)convertView.findViewById(R.id.objname);

         convertView.setTag(holder);
     } else {
         holder = (ViewHolder)convertView.getTag();
     }
    Log.e("called times: ",String.valueOf(position)); 
    return convertView;
}

@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
//  }
  }

我的日志：

调用次数：0

调用次数：1

调用次数：2

调用次数：0

---

我的适配器绘制的列表视图项目数量错误，这是个问题

Answer 1

当然会。适配器中的getView 方法会为屏幕上可见的列表中的每一行调用，因此显然会被多次调用。