ベースアダプターコード
public class ListAdapter extends BaseAdapter{
public ArrayList<HashMap<String,String>> list;
Activity activity;
public ListAdapter(Activity activity, ArrayList<HashMap<String, String>>list ) {
// TODO Auto-generated constructor stub
super();
this.activity=(Activity)activity;
this.list=list;
for(int i=0;i<3;i++)
{
HashMap<String, String>temp=(HashMap<String, String>)list.get(i);
System.out.println(temp.get("message"));
System.out.println(temp.get("from_whom"));
}
}
public int getCount() {
// TODO Auto-generated method stub
list.size();
return 0;
}
public Object getItem(int position) {
// TODO Auto-generated method stub
return list.get(position);
}
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
private class ViewHolder {
TextView Message;
TextView fromWhom;
}
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ViewHolder holder;
LayoutInflater inflater = activity.getLayoutInflater();
if (convertView == null)
{
convertView = inflater.inflate(R.layout.custom_list_view, null);
holder = new ViewHolder();
holder.Message = (TextView) convertView.findViewById(R.id.message);
holder.fromWhom = (TextView) convertView.findViewById(R.id.fromWhom);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
HashMap<String, String> item = list.get(position);
String message = item.get("message");
String from_whom = item.get("from_whom");
holder.Message.setText(message);
holder.fromWhom.setText(from_whom);
return convertView;
}
}
メインクラスコード
public class go_on extends Activity
{
ListView list;
ArrayList<String> nlist;
ArrayList<HashMap<String, String>> Hlist;
HashMap<String, String> temp;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
list = (ListView)findViewById(R.id.mylist);
Hlist = new ArrayList<HashMap<String,String>>();
for(int i=0;i<3;i++)
{
temp= new HashMap<String, String>();
temp.put("message","I am fine");
temp.put("from_whom", "123");
Hlist.add(temp);
}
ListAdapter listAdapter = new ListAdapter(this, Hlist);
list.setAdapter(listAdapter);
}
}
でもリストは来ない。問題は見つかりませんでした。私を助けてください。