我的getView被多次调用。我设置listview的fill_parent width和fill_parent高度,但它不起作用。 请参阅适配器代码:
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:
呼叫时间:0
呼叫时间:1
呼叫时间:2
呼叫时间:0
我的适配器正在绘制错误数量的listview项目,这是问题
答案 0 :(得分:2)
当然会。适配器中的getView
方法为List中显示在屏幕上的每一行调用,因此显然会多次调用它。