Android 带checkbox的listView 实现多选，全选，反选，删除

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activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >  <LinearLayout       android:layout_width="match_parent"      android:layout_height="wrap_content"      >    <Button         android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="全选"        android:layout_weight="1"        />    <Button         android:id="@+id/button2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="反 选"         android:layout_weight="1"        />    <Button         android:id="@+id/button3"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="全不选"         android:layout_weight="1"        />    <Button         android:id="@+id/button4"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="删除"         android:layout_weight="1"        /></LinearLayout><TextView     android:id="@+id/price"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    /><ListView     android:id="@+id/listveiw"    android:layout_width="match_parent"    android:layout_height="match_parent"        ></ListView>        </LinearLayout>

listveiw.xml

如果ListView的Item中包含CheckBox，由于CheckBox的焦点优先级高于ListView，所以当选中ListView时，ListView将不会有选中的状态，解决的方法就是在checkbox组件中加一属性：android:focusable="false"

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent" >   <TextView        android:id="@+id/text"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:text="ddd"              />   <CheckBox       android:id="@+id/checkbox"       android:layout_width="wrap_content"       android:layout_height="wrap_content"              android:focusable="false"          android:clickable="false"

       android:layout_alignParentRight="true"       android:layout_alignParentTop="true" /></RelativeLayout>

MainActivity.java

package com.bawei.day04_listview;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import com.bawei.day04_listview.Adper.ViewHolder;import com.bawei.vo.Good;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ListView;import android.widget.TextView;public class MainActivity extends Activity {    private Button button1;    private Button button2;    private Button button3;    private ListView listView;    private List<Good> list;    private TextView price;    private int num = 0;    private int pric = 0;    private BaseAdapter adapter;    private Button button4;    private List<Good> li;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        button1 = (Button) findViewById(R.id.button1);// 全选        button2 = (Button) findViewById(R.id.button2);// 反选        button3 = (Button) findViewById(R.id.button3);// 全不选        button4 = (Button) findViewById(R.id.button4);// 删除        listView = (ListView) findViewById(R.id.listveiw);// 价格        price = (TextView) findViewById(R.id.price);        list = new ArrayList<Good>();        // 赋值        for (int i = 0; i < 60; i++) {            list.add(new Good(i + "", false));        }        // 适配        adapter = new Adper(list, MainActivity.this);        listView.setAdapter(adapter);        // 全选        button1.setOnClickListener(new OnClickListener() {            public void onClick(View v) {                // TODO Auto-generated method stub                num = 0;                pric = 0;                for (int i = 0; i < list.size(); i++) {                    // 改变boolean                    list.get(i).setBo(true);                    // 如果为选中                    if (list.get(i).getBo()) {                        num++;                        pric += Integer.parseInt(list.get(i).getName());                    }                }                // 刷新                adapter.notifyDataSetChanged();                // 显示                price.setText("一共选了" + num + "件," + "价格是" + pric + "元");            }        });        // 反选        button2.setOnClickListener(new OnClickListener() {            public void onClick(View v) {                // TODO Auto-generated method stub                num = 0;                pric = 0;                for (int i = 0; i < list.size(); i++) {                    // 改值                    if (list.get(i).getBo()) {                        list.get(i).setBo(false);                    } else {                        list.get(i).setBo(true);                    }                    // 刷新                    adapter.notifyDataSetChanged();                    // 如果为选中                    if (list.get(i).getBo()) {                        num++;                        pric += Integer.parseInt(list.get(i).getName());                    }                }                // 用TextView显示                price.setText("一共选了" + num + "件," + "价格是" + pric + "元");            }        });        // 全不选        button3.setOnClickListener(new OnClickListener() {            public void onClick(View v) {                // TODO Auto-generated method stub                num = 0;                pric = 0;                for (int i = 0; i < list.size(); i++) {                    // 改值                    list.get(i).setBo(false);                    // 刷新                    adapter.notifyDataSetChanged();                    // 如果为选中                    if (list.get(i).getBo()) {                        num++;                        pric += Integer.parseInt(list.get(i).getName());                    }                }                price.setText("一共选了" + num + "件," + "价格是" + pric + "元");            }        });        // 删除1        /*         * li = new ArrayList<Good>(); button4.setOnClickListener(new         * OnClickListener() {         *          * public void onClick(View v) { // TODO Auto-generated method stub for         * (int i = 0; i < list.size(); i++) { if(list.get(i).getBo()){         * //把要删除的保存起来 li.add(list.get(i));         *          * }         *          * } //删除 list.removeAll(li); adapter.notifyDataSetChanged(); num = 0;         * pric = 0; price.setText("一共选了"+num+"件,"+"价格是"+pric+"元"); } });         */        // 删除2        /*button4.setOnClickListener(new OnClickListener() {            public void onClick(View v) {                // TODO Auto-generated method stub                for (int i = 0; i < list.size(); i++) {                    if (list.get(i).getBo()) {                        list.remove(i);                       i--;                    }                }                           adapter.notifyDataSetChanged();                num = 0;                pric = 0;                price.setText("一共选了" + num + "件," + "价格是" + pric + "元");            }        });*/        // 删除3        button4.setOnClickListener(new OnClickListener() {            public void onClick(View v) {                // TODO Auto-generated method stub                // 获取list集合对应的迭代器                Iterator it = list.iterator();                while (it.hasNext()) {                    // 得到对应集合元素                    Good g = (Good) it.next();                    // 判断                    if (g.getBo()) {                        // 从集合中删除上一次next方法返回的元素                        it.remove();                    }                }                // 刷新                adapter.notifyDataSetChanged();                num = 0;                pric = 0;                // 显示                price.setText("一共选了" + num + "件," + "价格是" + pric + "元");            }        });        // 绑定listView的监听器        listView.setOnItemClickListener(new OnItemClickListener() {            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,                    long arg3) {                // TODO Auto-generated method stub                // 取得ViewHolder对象                ViewHolder viewHolder = (ViewHolder) arg1.getTag();                // 改变CheckBox的状态                viewHolder.checkBox.toggle();                // 将CheckBox的选中状况记录下来                list.get(arg2).setBo(viewHolder.checkBox.isChecked());                // 调整选定条目                if (viewHolder.checkBox.isChecked() == true) {                    num++;                    pric += Integer.parseInt(list.get(arg2).getName());                } else {                    num--;                    pric -= Integer.parseInt(list.get(arg2).getName());                }                // 用TextView显示                price.setText("一共选了" + num + "件," + "价格是" + pric + "元");            }        });    }}

List的Vo类Good.java

package com.bawei.vo;public class Good {private String name;private boolean bo;public String getName() {    return name;}public void setName(String name) {    this.name = name;}public boolean getBo() {    return bo;}public void setBo(boolean bo) {    this.bo = bo;}@Overridepublic String toString() {    return "Good [name=" + name + ", bo=" + bo + "]";}public Good(String name, boolean bo) {    super();    this.name = name;    this.bo = bo;}public Good() {    super();}}

适配Adper.java

package com.bawei.day04_listview;import java.util.List;import com.bawei.vo.Good;import android.content.Context;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.TextView;public class Adper extends BaseAdapter {    List<Good> list;    Context context;        public Adper(List<Good> list, Context context) {        // TODO Auto-generated constructor stub    this.list=list;    this.context=context;            }    public int getCount() {        // TODO Auto-generated method stub        return list.size();    }    public Object getItem(int position) {        // TODO Auto-generated method stub        return null;    }    public long getItemId(int position) {        // TODO Auto-generated method stub        return 0;    }    public View getView(final int position, View convertView, ViewGroup parent) {        // TODO Auto-generated method stub        final ViewHolder viewHolder;        if(convertView==null){            convertView=View.inflate(context, R.layout.listveiw, null);         viewHolder=new ViewHolder();         viewHolder.textView=(TextView) convertView.findViewById(R.id.text);        viewHolder.checkBox=(CheckBox) convertView.findViewById(R.id.checkbox);         convertView.setTag(viewHolder);        }else{            viewHolder=(ViewHolder) convertView.getTag();        }        viewHolder.textView.setText("价格："+list.get(position).getName());                //显示checkBox        viewHolder.checkBox.setChecked(list.get(position).getBo());                return convertView;            }class ViewHolder{    TextView textView;    CheckBox checkBox;}}

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