豆瓣学习 设置 PreferenceActivity

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >

    <PreferenceCategory android:title="设置选项1" >
        <CheckBoxPreference
            android:defaultValue="是否开启checkbox"
            android:enabled="true"
            android:key="checkboxkey"
            android:summary="摘要"
            android:summaryOff="我被关闭啦 嘎嘎"
            android:summaryOn="我被开启啦 哈哈"
            android:title="标题" />
    </PreferenceCategory>
    <PreferenceCategory android:title="设置选项2" >
        <ListPreference
            android:dialogTitle="请选择"
            android:entries="@array/arraykey"
            android:entryValues="@array/arrayvalues"
            android:key="listselcet"
            android:negativeButtonText="取消"
            android:summary="请在对话框里面选择"
            android:title="选择条目" />

    </PreferenceCategory>

</PreferenceScreen>

package cn.itcast.preferenceactivity;

import android.app.Activity;
import android.os.Bundle;
import android.preference.PreferenceActivity;

public class PreferenceActivityActivity extends PreferenceActivity {



	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		
		addPreferencesFromResource(R.xml.preference);
		
		
		System.out.println(getPreferenceManager().getSharedPreferences().getBoolean("checkboxkey", false));
	}
  
	
	
}