Android之记录ListView的checkbox选择位置问题

<CheckBox
android:id="@+id/checkbox"
android:focusable="false" // 必须有
android:clickable="false"  // 必须有
android:layout_marginLeft="20dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>

public class ListViewCheckBoxActivity extends Activity {
private ListView listview;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
listview = (ListView) findViewById(R.id.listview);
MyAdapter adapter=new MyAdapter(this);
listview.setAdapter(adapter);
listview.setItemsCanFocus(false);
listview.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
listview.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
System.out.println("aa");
ViewHolder vHollder = (ViewHolder) view.getTag();
//在每次获取点击的item时将对于的checkbox状态改变，同时修改map的值。
vHollder.cBox.setChecked(true);
boolean check = vHollder.cBox.isChecked();
MyAdapter.isSelected.put(position, check);
}
});
}
}

package com.lee0000.ListViewCheckBox;
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.CheckBox;
import android.widget.ImageView;
import android.widget.TextView;

public class MyAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private List<Map<String, Object>> mData;
public static Map<Integer, Boolean> isSelected;
public MyAdapter(Context context) {
mInflater = LayoutInflater.from(context);
init();
}

//初始化
private void init() {
mData=new ArrayList<Map<String, Object>>();
for (int i = 0; i < 25; i++) {
Map<String, Object> map = new HashMap<String, Object>();
map.put("title", "第" + (i + 1) + "行的标题");
mData.add(map);
}

//这儿定义isSelected这个map是记录每个listitem的状态，初始状态全部为false。
isSelected = new HashMap<Integer, Boolean>();
for (int i = 0; i < mData.size(); i++) {
isSelected.put(i, false);
}
}

@Override
public int getCount() {
return mData.size();
}

@Override
public Object getItem(int position) {
return mData.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@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.listviewcontent, null);
holder.title = (TextView) convertView.findViewById(R.id.text);
holder.cBox = (CheckBox) convertView.findViewById(R.id.checkbox);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}

holder.title.setText(mData.get(position).get("title").toString());
holder.cBox.setChecked(isSelected.get(position));
return convertView;
}

public class ViewHolder {
public TextView title;
public CheckBox cBox;
}
}