ListView(列表)与Button的组合

package com.lilin.lb; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.TextView; public class MyAdapter extends BaseAdapter { private LayoutInflater mInflater; private List<Map<String, Object>> mData; public MyAdapter(Context context) { mInflater = LayoutInflater.from(context); init(); } // 初始化 private void init() { mData = new ArrayList<Map<String, Object>>(); Map<String, Object> map = new HashMap<String, Object>(); map.put("file_name", "附件一"); map.put("file_time", "2011/07/09"); mData.add(map); map = new HashMap<String, Object>(); map.put("file_name", "附件一"); map.put("file_time", "2011/07/09"); mData.add(map); } @Override public int getCount() { return mData.size(); } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; // convertView为null的时候初始化convertView。 if (convertView == null) { holder = new ViewHolder(); convertView = mInflater.inflate(R.layout.list, null); holder.file_name = (TextView) convertView .findViewById(R.id.file_name); holder.file_time = (TextView) convertView .findViewById(R.id.file_time); holder.download_btn = (Button) convertView .findViewById(R.id.download_btn); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.file_name.setText(mData.get(position).get("file_name") .toString()); holder.file_time.setText(mData.get(position).get("file_time") .toString()); return convertView; } public final class ViewHolder { public TextView file_name; public TextView file_time; public Button download_btn; } }