baseadapter例子里，listview里所有按钮有重用么

寂寞的地瓜发布于 2013/08/08 13:27

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答案 2

Android

您好请教一个baseadapter的问题

您那个baseadapter例子里，listview里所有按钮有重用么？

我按照您的写了，结果是所有按钮的id一样，当按钮的hashcode和convertView一样有重用，这是为什么呢？

加载中

贺路的路

2013/08/14 13:24

是不是把id写成position了，没上代码啊

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寂

寂寞的地瓜

2013/08/14 23:22

没有啊，下面是BaseAdapter

public class MyAdapter extends BaseAdapter{

private LayoutInflater mInflater;

public MyAdapter(Context context){
this.mInflater = LayoutInflater.from(context);
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return getDate().size();
}

@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 0;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
Log.v("MyLisViewBaset", "getView " + position + " " + convertView);

if(convertView == null){
holder = new ViewHolder();
convertView = mInflater.inflate(R.layout.baseadapter02, null);
holder.title = (TextView) convertView.findViewById(R.id.baseadapter02_ItemTitle);
holder.text = (TextView) convertView.findViewById(R.id.abaseadapter02_ItemText);
holder.bt = (Button) convertView.findViewById(R.id.baseadapter02_ItemButton);

convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}

holder.title.setText(getDate().get(position).get("ItemTitle").toString());
holder.text.setText(getDate().get(position).get("ItemText").toString());
holder.bt.setText(position+"");

holder.bt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {

System.out.println("dfdfdfdfdfdf");
Log.v("=======================================", "==========================================");
Log.v("MyListViewBase", "你点击了按钮" + position);
Log.v("MyListViewBase", "你点击了按钮" + v.toString() + " id:" + v.getId());
}
});
return convertView;
}

public final class ViewHolder{
public TextView title;
public TextView text;
public Button bt;
}
}

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