ListView+CheckBox的使用

初学安卓，项目中有用到ListView+CheckBox，下面来分享一下代码：

1.创建checkboxlist_item.xml存放listItem，代码如下：

2.创建数组对象Record 

package com.callrecording;

import android.graphics.drawable.Drawable;

import java.io.Serializable;

/**
 * Created by lenovo on 2018/10/11.
 */

public class Record  implements Serializable {
    private String recordId;
    private String recordName;
    private boolean isChcked;    //保存复选框的状态

    public void setRecordName(String  recordName)
    {
        this.recordName = recordName;
    }
    public String getRecordName()
    {
        return recordName;
    }


    public void setIsChcked(boolean isChcked)
    {
        this.isChcked = isChcked;
    }
    public boolean getIsChcked()
    {
        return isChcked;
    }



    public String getRecordId()
    {
        return recordId;
    }

}

之前试过不创建这个对象，没有这个对象会导致点击复选框的时候获取不到数据，而且会出现复选框勾选错乱的情况

3.创建适配器CheckBoxAdapter :

package com.callrecording;

import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by lenovo on 2018/10/11.
 */

public class CheckBoxAdapter extends BaseAdapter {
    private static String TAG = "CheckBoxAdapter";
    private Context context;
    private List list;
    private LayoutInflater layoutInflater;
    private TextView tv;
    private CheckBox cb;
    public CheckBoxAdapter(Context context,List list) {
        this.context = context;
        this.list = list;//list中checkbox状态为false
        layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }


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

    @Override
    public Object getItem(int position) {
        return null != list?list.get(position):null;
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewCache viewCache = new ViewCache();
        Record record=(Record)getItem(position);
// 判断是不是第一次进来
        if(convertView == null){
            convertView = layoutInflater.inflate(R.layout.checkboxlist_item, null);
            tv = (TextView) convertView.findViewById(R.id.item_tv);
            cb = (CheckBox) convertView.findViewById(R.id.cb);
            viewCache.tv = tv;
            viewCache.cb = cb;
            convertView.setTag(viewCache);
            final ViewCache finalViewHolder = viewCache;
            viewCache.cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                    Record info = (Record) finalViewHolder.cb.getTag();
                    info.setIsChcked(compoundButton.isChecked());
                }
            });
            convertView.setTag(viewCache);
            viewCache.cb.setTag(record);
        }else {
            viewCache = (ViewCache) convertView.getTag();
            viewCache.cb.setTag(record);
        }
        viewCache.tv.setText(record.getRecordName());
        viewCache.cb.setChecked(record.getIsChcked());

        return convertView;
}
public class ViewCache{

        TextView tv;

        CheckBox cb;

    }

}

4.加载并显示数据：

public void showList(List l) {
    try {
    list = new ArrayList();
    if(l!=null) {
        for (int i = 0; i < l.size(); i++) {
            Record record = new Record();
            record.setRecordName(l.get(i).toString());
            record.setIsChcked(false);
            list.add(record);
        }//初始化数据
    }
    listview = (ListView)findViewById(R.id.recordlistview);
    cbAdapter = new CheckBoxAdapter(this,list);
    listview.setAdapter(cbAdapter);
        Log.i(TAG,"列表信息:" +list.toString());
    listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView parent, View view,int position, long id) {
            CheckBoxAdapter.ViewCache viewCache = (CheckBoxAdapter.ViewCache) view.getTag();
            viewCache.cb.toggle();
            list.get(position).setIsChcked(viewCache.cb.isChecked());
            String nameStr=list.get(position).getRecordName();
            name=nameStr.substring(nameStr.indexOf(" ")+2,nameStr.length());
            Log.i(TAG,"文件名:" +name);
            cbAdapter.notifyDataSetChanged();
        }
    });
    } catch (Exception e) {
        e.printStackTrace();
        Log.i(TAG,"错误信息:" +e.toString());
    }
    Toast.makeText(Call.this, "加载完成！" , Toast.LENGTH_SHORT).show();

}

我是初学菜鸟，不对的地方请各位大神不吝赐教，不喜勿喷！