1、我們在佈局檔案中用一個按鈕進行測試，給按鈕註冊事件，下面是佈局檔案的程式碼：

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="18dp"
        android:text="@string/text_java" />

    <CheckBox
        android:id="@+id/checkBox2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/checkBox1"
        android:layout_marginTop="36dp"
        android:text="@string/text_3G" />

    <CheckBox
        android:id="@+id/checkBox3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/checkBox2"
        android:layout_below="@+id/checkBox2"
        android:layout_marginTop="43dp"
        android:text="@string/text_net" />

    <CheckBox
        android:id="@+id/checkBox4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/checkBox3"
        android:layout_below="@+id/checkBox3"
        android:layout_marginTop="44dp"
        android:text="@string/text_PHP" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/checkBox2"
        android:layout_below="@+id/checkBox4"
        android:layout_marginTop="58dp"
        android:onClick="getValues"
        android:text="@string/text_get" />

</RelativeLayout>
 

2、這是佈局檔案中引用的string.xml的值：

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

    <string name="app_name">lession16-checkbox</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="text_java">Java專業</string>
    <string name="text_net">NET專業</string>
    <string name="text_PHP">PHP專業</string>
    <string name="text_3G">3G專業</string>
    <string name="text_get">獲取值</string>
   

</resources>
 

3、MainActivity中的程式碼：

package com.example.lession16_checkbox;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.view.Menu;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.Toast;

public class MainActivity extends Activity {
	
	//宣告元件
	private CheckBox cb1,cb2,cb3,cb4;
	
	//宣告一個集合
	private List<CheckBox> checkBoxs=new ArrayList<CheckBox>();

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		//獲取元件
		cb1 = (CheckBox) findViewById(R.id.checkBox1);
		cb2 = (CheckBox) findViewById(R.id.checkBox2);
		cb3 = (CheckBox) findViewById(R.id.checkBox3);
		cb4 = (CheckBox) findViewById(R.id.checkBox4);
		
		//預設選項
		cb2.setChecked(true);
		cb4.setChecked(true);
		
		//註冊事件
		cb1.setOnCheckedChangeListener(listener);
		cb2.setOnCheckedChangeListener(listener);
		cb3.setOnCheckedChangeListener(listener);
		cb4.setOnCheckedChangeListener(listener);
		//把四個元件新增到集合中去
		checkBoxs.add(cb1);
		checkBoxs.add(cb2);
		checkBoxs.add(cb3);
		checkBoxs.add(cb4);
	}

	@Override
	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;
	}
	
	public void getValues(View v) {

		String content = "";

		for (CheckBox cbx : checkBoxs) {
			if (cbx.isChecked()) {
				content += cbx.getText() + "\n";
			}
		}

		if ("".equals(content)) {
			content = "您還沒有選擇尼";
		}
		new AlertDialog.Builder(this).setMessage(content).setTitle("選中的內容如下")
				.setPositiveButton("關閉", null).show();

	}

	CompoundButton.OnCheckedChangeListener listener = new CompoundButton.OnCheckedChangeListener() {

		@Override
		public void onCheckedChanged(CompoundButton buttonView,
				boolean isChecked) {
			// TODO Auto-generated method stub
			CheckBox box = (CheckBox) buttonView;

			Toast.makeText(getApplicationContext(),
					"獲取的值:" + isChecked + "xxxxx" + box.getText(),
					Toast.LENGTH_LONG).show();

		}
	};

}