android对话框，checkBox,同一时候在同一个页面上保存数据

package com.example.selectonlyonle;





import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;





public class MainActivity extends Activity {





private EditText editText;

private final static int DIALOG = 1;

boolean[] flags = new boolean[] { false, false, false, false };// 初始复选情况

String[] items = null;

private String lv_items[] = { "轮胎（400）", " 无骨雨刷（100）", "刹车片（235）",

"刹车盘（500）" };

private String lv_items_value[] = { "400", "100", "235", "500" };

private String result;

private int motoal;

private String test;





@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);





items = getResources().getStringArray(R.array.hobby);

editText = (EditText) findViewById(R.id.editText);

Button button = (Button) findViewById(R.id.button);

button.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {

// 显示对话框

showDialog(DIALOG);

}

});

}





/**

* 创建复选框对话框

*/

@Override

public Dialog onCreateDialog(int id) {

Dialog dialog = null;

switch (id) {

case DIALOG:

AlertDialog.Builder builder = new AlertDialog.Builder(this);

// 设置对话框的图标

// builder.setIcon(R.drawable.header);

// 设置对话框的标题

builder.setTitle("复选框对话框");

builder.setMultiChoiceItems(R.array.hobby, flags,

new DialogInterface.OnMultiChoiceClickListener() {

public void onClick(DialogInterface dialog, int which,

boolean isChecked) {

flags[which] = isChecked;

System.out.println(which+"==which==="+which);

result = "您选择了：";

// for (int i = 0; i < flags.length; i++) {

if (flags[which]) {

result = result + items[which] + "、";

motoal = motoal

+ Integer

.valueOf(lv_items_value[which]);

System.out.println(result + "======"

+ motoal);

// test = test +lv_items_value[i];



}

// }

if (!flags[which]) {

// 假设选中了又不选了

motoal = motoal

- Integer

.valueOf(lv_items_value[which]);

System.out.println("==motoal=0="

+ motoal);

}

// for (int a = 0; a < 4; a++) {

// if (flags[a] == false) {

// motoal = motoal

// - Integer

// .valueOf(lv_items_value[a]);

// System.out.println("==motoal=0="

// + motoal);

// }

// }

// System.out.println("========="+test);

// editText.setText(motoal+"");

editText.setText(motoal + "");

}

});

// builder.setPositiveButton(result,

// new DialogInterface.OnClickListener() {

// public void onClick(DialogInterface dialog, int which) {

// }

// });

// 加入一个确定button

builder.setPositiveButton(" 确 定 ",

new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

}

});

// 创建一个复选框对话框

dialog = builder.create();

break;

}

return dialog;

}

}

----------------------array.xml---------------------------------

<?xml version="1.0" encoding="utf-8"?

>

<resources>

  <string-array name="hobby">        

     <item>轮胎（400）</item>            

     <item>无骨雨刷（100）</item>            

     <item>刹车片（235）</item>        

     <item>刹车盘（500）</item>        

  </string-array>

</resources>

这是看着网上的代码，仅仅是稍加了自己的理解。以及checkbox中数据的加减

------------------------------activity_main.xml-----------

<?xml version="1.0" encoding="utf-8"?

>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >





    <EditText

        android:id="@+id/editText"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:cursorVisible="false"

        android:editable="false"

        android:text="" />





    <Button

        android:id="@+id/button"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="显示复选框对话框" />





</LinearLayout>