listview全选，和反选的实现

<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" >

    <ListView
        android:id="@+id/lv"
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:layout_weight="5" >
    </ListView>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:orientation="horizontal" 
        android:layout_weight="1"
        >

        <Button
            android:id="@+id/btn_1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="全选" />

        <Button
            android:id="@+id/btn_2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="反选" />

        <Button
            android:id="@+id/btn_3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="确定" />
    </LinearLayout>

</LinearLayout>

布局文件

package com.example.listview;

import android.os.Bundle;
import android.app.Activity;
import android.text.TextUtils;
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.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {
    private ListView lv;
    private String[] data = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" };


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lv = (ListView) findViewById(R.id.lv);
        lv.setAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_checked, data));
        lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        //全选按钮
        findViewById(R.id.btn_1).setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                for (int i = 0; i < data.length; i++) {
                    //遍历并设置所有的为选中状态
                    lv.setItemChecked(i, true);
                }

            }
        });
        //反选按钮
        findViewById(R.id.btn_2).setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                //遍历所有,如果选中的设置为否  ，  如果没有选中的设置为是
                for (int i = 0; i < data.length; i++) {

                    if (lv.isItemChecked(i)) {
                        lv.setItemChecked(i, false);
                    } else {
                        lv.setItemChecked(i, true);
                    }
                }
            }
        });
        //获得内容并输入
        findViewById(R.id.btn_3).setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                String s = "";
                for (int i = 0; i < data.length; i++) {
                    if (lv.isItemChecked(i)) {
                        s += lv.getItemAtPosition(i).toString()+"
";
                    }
                }
                Toast.makeText(MainActivity.this, s, 1000).show();
            }
        });
    }

    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}