listview 实现多按钮操作

package com.overwrite; import java.util.List; import java.util.Map; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.Button; import android.widget.EditText; import android.widget.SimpleAdapter; import com.android.R; public class AddMinAdapter extends SimpleAdapter { private LayoutInflater mInflater; private int resource; private List<Map<String, String>> mData; public AddMinAdapter(Context _context, List<Map<String, String>> _data, int _resource, String[] _from, int[] _to) { super(_context, _data, _resource, _from, _to); mInflater = LayoutInflater.from(_context); this.mData = _data; this.resource = _resource; } @Override public int getCount() { return mData.size(); } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if (convertView == null) { holder = new ViewHolder(); convertView = mInflater.inflate(resource, null); holder.addBut = (Button) convertView.findViewById(R.id.addbutton); holder.minBut = (Button) convertView.findViewById(R.id.minbutton); holder.number = (EditText) convertView.findViewById(R.id.number); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.number.setText(mData.get(position).get("number")); holder.addBut.setOnClickListener(new addButOnclick(position, mData, convertView)); holder.minBut.setOnClickListener(new minButOnclick(position, mData, convertView)); return convertView; } /** * 添加事件 */ class addButOnclick implements OnClickListener { int position = 0; List<Map<String, String>> data; View convertView; public addButOnclick(int _position, List<Map<String, String>> _data, View _convertView) { this.position = _position; this.data = _data; this.convertView = _convertView; } public void onClick(View v) { EditText number = (EditText) convertView.findViewById(R.id.number); number.setText((Integer.parseInt(number.getText() + "") + 1) + ""); data.get(position).put("number", (Integer.parseInt(data.get(position).get("number")+"")+1)+""); } } /** * 减法事件 */ class minButOnclick implements OnClickListener { int position = 0; List<Map<String, String>> data; View convertView; public minButOnclick(int _position, List<Map<String, String>> _data, View _convertView) { this.position = _position; this.data = _data; this.convertView = _convertView; } public void onClick(View v) { EditText number = (EditText) convertView.findViewById(R.id.number); int num = Integer.parseInt(number.getText() + ""); if (num > 1) { number.setText((num - 1) + ""); data.get(position).put("number", (Integer.parseInt(data.get(position).get("number")+"")-1)+""); } } } public class ViewHolder { public Button addBut; public Button minBut; public EditText number; } }