sivAddress.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                if (sivAddress.isChecked()) {
                    sivAddress.setChecked(false);
                    stopService(new Intent(SettingActivity.this,//只写this则表示OnClickListener，所以要写SettingActivity.this，
                            AddressService.class));// 停止归属地服务
                } else {
                    sivAddress.setChecked(true);
                    startService(new Intent(SettingActivity.this,
                            AddressService.class));// 开启归属地服务，就会调用AddressService的onCreate方法监听电话的状态。
                }
            }
        });

package com.itheima52.mobilesafe.utils;

import java.util.List;

import android.app.ActivityManager;
import android.app.ActivityManager.RunningServiceInfo;
import android.app.ActivityManager.RunningTaskInfo;
import android.content.Context;

/**
 * 服务状态工具类
 * 
 * // 根据归属地服务是否运行来更新checkbox
        boolean serviceRunning = ServiceStatusUtils.isServiceRunning(this,
        "com.itheima52.mobilesafe.service.AddressService");//Service的包名类名
 */
public class ServiceStatusUtils {
    /**
     * 检测服务是否正在运行
     */
    public static boolean isServiceRunning(Context ctx, String serviceName) {
        ActivityManager am = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE);
        List<RunningServiceInfo> runningServices = am.getRunningServices(100);// 获取系统所有正在运行的服务,最多返回100个
        
        for (RunningServiceInfo runningServiceInfo : runningServices) {
            String className = runningServiceInfo.service.getClassName();// 获取服务的名称
            // System.out.println(className);
            if (className.equals(serviceName)) {// 服务存在
                return true;
            }
        }
        return false;
    }
}

package com.itheima52.mobilesafe.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.itheima52.mobilesafe.R;

/**
 * 设置中心的自定义组合控件
 * 
 * <com.itheima52.mobilesafe.view.SettingClickView
        android:id="@+id/scv_address_location"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
        
    private void initAddressStyle() {
        scvAddressStyle = (SettingClickView) findViewById(R.id.scv_address_style);
        scvAddressStyle.setTitle("归属地提示框风格");
        int style = mPref.getInt("address_style", 0);// 读取保存的style
        scvAddressStyle.setDesc(items[style]);
        scvAddressStyle.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                showSingleChooseDailog();
            }
        });
    }
 */
public class SettingClickView extends RelativeLayout {

    private TextView tvTitle;
    private TextView tvDesc;

    public SettingClickView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initView();
    }

    public SettingClickView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView();
    }

    public SettingClickView(Context context) {
        super(context);
        initView();
    }

    /**
     * 初始化布局
     */
    private void initView() {
        // 将自定义好的布局文件设置给当前的SettingClickView
        View.inflate(getContext(), R.layout.view_setting_click, this);
        tvTitle = (TextView) findViewById(R.id.tv_title);
        tvDesc = (TextView) findViewById(R.id.tv_desc);
    }

    public void setTitle(String title) {
        tvTitle.setText(title);
    }

    public void setDesc(String desc) {
        tvDesc.setText(desc);
    }
}

package com.itheima52.mobilesafe.service;

import com.itheima52.mobilesafe.R;
import com.itheima52.mobilesafe.db.dao.AddressDao;

import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.view.View;
import android.view.WindowManager;
import android.widget.TextView;
import android.widget.Toast;

/**
 * 来电提醒的服务
 * 清单文件注册：<service android:name=".service.AddressService" >
 * 
 */
public class AddressService extends Service {

    private TelephonyManager tm;
    private MyListener listener;
    private OutCallReceiver receiver;
    private WindowManager mWM;
    private View view;
    private SharedPreferences mPref;

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
                
    @Override
    public void onCreate() {
        super.onCreate();

        mPref = getSharedPreferences("config", MODE_PRIVATE);
        //来电是通过TelephonyManager服务来监听，去电是通过广播接受者来接收，这是安卓的api决定的。
        
        tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
        listener = new MyListener();
        tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);// 监听来电的状态，

        receiver = new OutCallReceiver();
        IntentFilter filter = new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL);
        registerReceiver(receiver, filter);// 动态注册广播
    }

    class MyListener extends PhoneStateListener {
        @Override
        public void onCallStateChanged(int state, String incomingNumber) {
            switch (state) {
            case TelephonyManager.CALL_STATE_RINGING:// 电话铃声响了
                System.out.println("电话铃响...");
                String address = AddressDao.getAddress(incomingNumber);// 根据来电号码查询归属地
                // Toast.makeText(AddressService.this, address,
                // Toast.LENGTH_LONG)
                // .show();
                showToast(address);
                break;
            case TelephonyManager.CALL_STATE_IDLE:// 电话闲置状态，挂断电话的时候消除showToast()方法产生的WindowManager窗口。
                if (mWM != null && view != null) {
                    mWM.removeView(view);// 从window中移除view，否则这个窗口会一直显示在手机屏幕。
                    view = null;
                }
                break;
            default:
                break;
            }
            super.onCallStateChanged(state, incomingNumber);
        }
    }

    /**
     * 监听去电的广播接受者 需要权限: android.permission.PROCESS_OUTGOING_CALLS
     */
    class OutCallReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            String number = getResultData();// 获取去电电话号码
            String address = AddressDao.getAddress(number);
            Toast.makeText(context, address, Toast.LENGTH_LONG).show();
            showToast(address);
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();//停掉本AddressService服务，但是他里面的tm服务监听没有停止，
        tm.listen(listener, PhoneStateListener.LISTEN_NONE);// 停止来电监听
        unregisterReceiver(receiver);// 注销去电广播
    }

    /**
     * 自定义归属地浮窗
     */
    private void showToast(String text) {
        mWM = (WindowManager) this.getSystemService(Context.WINDOW_SERVICE);//系统服务，WindowManager可以一直显示在手机屏幕上。
        //模仿的Toast源码
        WindowManager.LayoutParams params = new WindowManager.LayoutParams();
        params.height = WindowManager.LayoutParams.WRAP_CONTENT;
        params.width = WindowManager.LayoutParams.WRAP_CONTENT;
        params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
                | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
        params.format = PixelFormat.TRANSLUCENT;
        params.type = WindowManager.LayoutParams.TYPE_TOAST;
        params.setTitle("Toast");

        // view = new TextView(this);
        view = View.inflate(this, R.layout.toast_address, null);
        /*<?xml version="1.0" encoding="utf-8"?>
        <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/call_locate_blue"
            android:gravity="center_vertical"
            android:orientation="horizontal" >
            <ImageView
                android:id="@+id/imageView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@android:drawable/ic_menu_call" />        安卓的图片
            <TextView
                android:id="@+id/tv_number"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="未知号码"
                android:textSize="18sp"
                android:textColor="#fff" />
        </LinearLayout>*/
        int[] bgs = new int[] { R.drawable.call_locate_white,
                R.drawable.call_locate_orange, R.drawable.call_locate_blue,
                R.drawable.call_locate_gray, R.drawable.call_locate_green };
        int style = mPref.getInt("address_style", 0);

        view.setBackgroundResource(bgs[style]);// 根据存储的样式更新背景

        TextView tvText = (TextView) view.findViewById(R.id.tv_number);
        tvText.setText(text);

        mWM.addView(view, params);// 将view添加在屏幕上(Window，所有的控件都显示在window上，在windoew上面可以显示Activity和fragment，)
    }
}