关于AlertDialog多选框中全选和反选的实现办法

 package mobile.android.ch07.multi.choice.dialog;

 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.os.Bundle;
 import android.util.SparseBooleanArray;
 import android.view.View;
 import android.widget.ListView;

 public class Main extends Activity {
         private String[] provinces = new String[] { "辽宁省", "山东省", "河北省", "福建省", "广东省", "全选" };
         private ListView lv = null;
         private boolean[] state = new boolean[] { false, true, false, true, false, false };

         @Override
         public void onCreate(Bundle savedInstanceState) {
                 super.onCreate(savedInstanceState);
                 setContentView(R.layout.main);
         }

         public void onClick_MultiChoiceDialog(View view) {

                 final AlertDialog ad = new AlertDialog.Builder(this).setIcon(R.drawable.image).setTitle("选择省份")
                                 .setMultiChoiceItems(provinces, state, new DialogInterface.OnMultiChoiceClickListener() {
                                         public void onClick(DialogInterface dialog, int whichButton, boolean isChecked) {

                                                 if (whichButton == 5 && isChecked) {
                                                         // lv.setItemChecked(0, true);
                                                         // lv.setItemChecked(1, true);
                                                         // lv.setItemChecked(2, true);
                                                         // lv.setItemChecked(3, true);
                                                         // lv.setItemChecked(4, true);
                                                         SparseBooleanArray sb;
                                                         sb = lv.getCheckedItemPositions();
                                                         // int size=sb.size();
                                                         for (int i = 0; i <= 5; i++) {
                                                                 if (sb.get(i) == false) {
                                                                         lv.setItemChecked(i, true);
                                                                 }
                                                         }
                                                 } else if (whichButton == 5 && !isChecked) {
                                                         // state = new boolean[6];
                                                         for (int i = 0; i < state.length; i++) {
                                                                 state<i> = false;
                                                         }
                                                         lv.clearChoices();
 //                                                        lv.invalidate();
 //                                                         ad.onContentChanged();
                                                         // SparseBooleanArray sb;
                                                         // sb = lv.getCheckedItemPositions();
                                                         // // int size=sb.size();
                                                         // for (int i = 0; i <= 5; i++) {
                                                         // if (sb.get(i) == true) {
                                                         // lv.setItemChecked(i, false);
                                                         // }
                                                         // }
                                                         System.out.println("");
                                                 }
                                         }
                                 }).setPositiveButton("确定", new DialogInterface.OnClickListener() {
                                         public void onClick(DialogInterface dialog, int whichButton) {
                                                 int count = lv.getCount();
                                                 String s = "您选择了:";
                                                 for (int i = 0; i < provinces.length; i++) {

                                                         if (lv.getCheckedItemPositions().get(i))
                                                                 s += i + ":" + lv.getAdapter().getItem(i) + "  ";

                                                 }
                                                 if (lv.getCheckedItemPositions().size() > 0) {
                                                         new AlertDialog.Builder(Main.this).setMessage(s).show();
                                                 } else {
                                                         new AlertDialog.Builder(Main.this).setMessage("您未选择任何省份").show();

                                                 }

                                         }
                                 }).setNegativeButton("取消", null).create();
                 lv = ad.getListView();
                 ad.show();
         }
 }

这个是网友给出的办法，我按照这个办法，结果还是不能实现反选，每次点击反选，显示出来的条目都没有反选，只有往上滚动列表，之前隐藏的条目才显示为反选。

后来在反选遍历列表的时候加入lv.setItemChecked(i, false)就好了，可以正常显示为反选。

后来调试之后发现前面那样虽然可以正常显示，但是实际得到的列表的ture、false值有出入，重新修改了代码：

 package mobile.android.ch07.multi.choice.dialog;

 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.os.Bundle;
 import android.util.SparseBooleanArray;
 import android.view.View;
 import android.widget.ListView;

 public class Main extends Activity {
         private String[] provinces = new String[] { "辽宁省", "山东省", "河北省", "福建省", "广东省", "全选" };
         private ListView lv = null;
         private boolean[] state = new boolean[] { false, true, false, true, false, false };

         @Override
         public void onCreate(Bundle savedInstanceState) {
                 super.onCreate(savedInstanceState);
                 setContentView(R.layout.main);
         }

         public void onClick_MultiChoiceDialog(View view) {

                 final AlertDialog ad = new AlertDialog.Builder(this).setIcon(R.drawable.image).setTitle("选择省份")
                                 .setMultiChoiceItems(provinces, state, new DialogInterface.OnMultiChoiceClickListener() {
                                         public void onClick(DialogInterface dialog, int whichButton, boolean isChecked) {

                                                 if (whichButton == 5) {
                                                         for (int i = 0; i <= 5; i++) {

                                                                         lv.setItemChecked(i, isChecked);
                                     state[i] = isChecked;

                                                         }
                                                 }
                                 }).setPositiveButton("确定", new DialogInterface.OnClickListener() {
                                         public void onClick(DialogInterface dialog, int whichButton) {
                                                 int count = lv.getCount();
                                                 String s = "您选择了:";
                                                 for (int i = 0; i < provinces.length; i++) {

                                                         if (lv.getCheckedItemPositions().get(i))
                                                                 s += i + ":" + lv.getAdapter().getItem(i) + "  ";

                                                 }
                                                 if (lv.getCheckedItemPositions().size() > 0) {
                                                         new AlertDialog.Builder(Main.this).setMessage(s).show();
                                                 } else {
                                                         new AlertDialog.Builder(Main.this).setMessage("您未选择任何省份").show();

                                                 }

                                         }
                                 }).setNegativeButton("取消", null).create();
                 lv = ad.getListView();
                 ad.show();
         }
 }