java攻城狮之路(Android篇)--BroadcastReceiver&Service

四大组件：
activity 显示。
contentProvider 对外暴露自己的数据给其他的应用程序。
BroadcastReceiver 广播接收者，必须指定要接收的广播类型。必须明确的指定action
service 服务，是运行后台，它是没有界面的。对某件事情进行监听。

一、广播：事件。
普通广播：是异步的。会广播接收者同时接收，不能被中断
sendBroadcast()
有序广播：是同步的。会根据广播接收的优先级进行接收，是可以中断短信到来广播
sendOrderBroadcast()
-1000 ~ 1000
如果有序广播明确的指定了广播接收者，他是无法被中断的。
广播接收者的订阅：
1 在清单文件里面指定

<receiver android:name=".SmsReceiver">

    <intent-filter android:priority="1000">

        <action android:name="android.provider.Telephony.SMS_RECEIVED"/>

    </intent-filter>

</receiver>

2 在代码里面指定

IntentFilter filter = new IntentFilter();

filter.setPriority(1000);

filter.addAction("android.provider.Telephony.SMS_RECEIVED");

registerReceiver(new SmsReceiver(), filter);

当广播接收者一旦接收到广播，它会执行里面的onReceive()方法，但是里面是不能执行耗时的操作，这个方式如果在10s之内没有执行完毕，就会出现anr异常，也就是应用无响应异常

练习1：利用广播拦截短信、拦截外拨电话、增加IP拨号功能

java攻城狮之路(Android篇)--BroadcastReceiver&Service

package com.shellway.mysmsreceiver;

import android.support.v7.app.ActionBarActivity;

import android.content.IntentFilter;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

public class MainActivity extends ActionBarActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //代码注册广播接收者

        IntentFilter filter = new IntentFilter();

        filter.setPriority(1000);

        filter.addAction("android.provider.Telephony.SMS_RECEIVED");

        registerReceiver(new SmsReceiver(), filter);

    }

}

MainActivity.java

package com.shellway.mysmsreceiver;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.text.BoringLayout;

import android.util.Log;

public class PhoneReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

        //得到外拨电话

        String number = getResultData();

        Log.i("i", number);

      //  abortBroadcast();//因为底层明确了广播接收者，所以这种中断打电话的效果不行

      //  setResultData(null);//应该用这种方式来中断打电话

      //  给用户设置IP拨号

        setResultData("17951"+number);

    }

}

PhoneReceiver.java

package com.shellway.mysmsreceiver;

import java.text.SimpleDateFormat;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.telephony.SmsMessage;

import android.telephony.gsm.SmsManager;

import android.util.Log;

public class SmsReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

        // TODO Auto-generated method stub

      Log.i("i", "已经接收到短信");

      Bundle bundle = intent.getExtras();

      Object[] objects = (Object[]) bundle.get("pdus");

      for (Object object : objects) {

        SmsMessage smsMessage = SmsMessage.createFromPdu((byte[])object);

        //获取短信内容

        String body = smsMessage.getDisplayMessageBody();

        //获取来短信的电话号码

        String addr = smsMessage.getDisplayOriginatingAddress();

        //获取短信到来的时间

        Long time = smsMessage.getTimestampMillis();

        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH：mm:ss");

        String date = sdf.format(time);

        Log.i("i", "电话号码："+addr);

        Log.i("i", "短信内容： "+body);

        Log.i("i","时间： "+ date);

        if(addr.equals("5558")){

            //中断广播，注意在配置文件里要设置好这个接收者的优先级为最高

            abortBroadcast();

            //拦截消息转发给第三方

            android.telephony.SmsManager smsManager = android.telephony.SmsManager.getDefault();

            smsManager.sendTextMessage("5554", null, addr + ","+ body +","+ date, null, null);

        }

    }

  }

}

SmsReceiver.java

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

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

    package="com.shellway.mysmsreceiver"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <uses-permission android:name="android.permission.RECEIVE_SMS"/>

    <uses-permission android:name="android.permission.SEND_SMS"/>

    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <!--  这里使用了代码来实现广播接收者的注册来代替

        <receiver android:name=".SmsReceiver">

            <intent-filter android:priority="1000">

                <action android:name="android.provider.Telephony.SMS_RECEIVED"></action>

            </intent-filter>

        </receiver>

        -->

        <receiver android:name=".PhoneReceiver">

            <intent-filter android:priority="1000">

                <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>

            </intent-filter>

        </receiver>

    </application>

</manifest>

AndroidManifest.xml

运行结果截图：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

练习2：自定义广播(这里演示自己接收自己发出的广播)

java攻城狮之路(Android篇)--BroadcastReceiver&Service

package com.shellway.customreceiver;

import android.support.v7.app.ActionBarActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.EditText;

public class MainActivity extends ActionBarActivity {

    private EditText et_data;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //获取用户输入的数据

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

    }

    public void send(View view){

        String data = et_data.getText().toString();

        //创建一个意图

        Intent intent = new Intent(this,CustomReceiver.class);

        //给我这个广播自定义一个动作名称

        intent.setAction("com.shellway.CustomReceiver");

        //往意图里封装数据

        intent.putExtra("data", data);

        //发送的是普通广播，不是有序广播

        sendBroadcast(intent);

    }

}

MainActivity.java

package com.shellway.customreceiver;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

public class CustomReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

        //接收广播过来的数据

        String data = intent.getStringExtra("data");

        Log.i("i", data);

    }

}

CustomReceiver.java

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="要广播的数据：" />

    <EditText

        android:id="@+id/et_data"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:hint="请输入要广播发送的数据"

        />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:onClick="send"

        android:text="开始广播"

        />

</LinearLayout>

activity_main.xml

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

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

    package="com.shellway.customreceiver"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <receiver android:name=".CustomReceiver">

            <intent-filter>

                <action android:name="com.shellway.CustomReceiver"></action>

            </intent-filter>

        </receiver>

    </application>

</manifest>

AndroidManifest.xml

运行结果截图：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

二、service:服务
运行于后台，没有界面，对某件事情进行监听。它不能自己运行，必须手动激活。

当服务被创建的时候会调用一个onCreate()方法。

练习3：通过服务监听电话的呼叫状态

java攻城狮之路(Android篇)--BroadcastReceiver&Service

package com.shellway.myservice;

import android.support.v7.app.ActionBarActivity;

import android.telephony.TelephonyManager;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

public class MainActivity extends ActionBarActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

    public void startService(View view){

         //创建一个意图

         Intent intent = new Intent(this,MyService.class);

         //启动一个服务

         startService(intent);

    }

}

MainActivity.java

package com.shellway.myservice;

import android.app.Service;

import android.content.Context;

import android.content.Intent;

import android.os.IBinder;

import android.telephony.PhoneStateListener;

import android.telephony.TelephonyManager;

import android.util.Log;

public class MyService extends Service {

    //定义一个系统默认的电话服务管理者

    private TelephonyManager tm;

    private MyPhoneStateListener listener;

    //当服务被创建的时候调用该方法

    @Override

    public void onCreate() {

        super.onCreate();

        listener = new MyPhoneStateListener();

        tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        //监听电话的呼叫状态

        tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);

    }

    private final class MyPhoneStateListener extends PhoneStateListener{

        @Override

        public void onCallStateChanged(int state, String incomingNumber) {

            // TODO Auto-generated method stub

            super.onCallStateChanged(state, incomingNumber);

            switch (state) {

            case TelephonyManager.CALL_STATE_IDLE://闲置状态

                Log.i("i", "闲置状态");

                Log.i("i", incomingNumber);

                break;

            case TelephonyManager.CALL_STATE_OFFHOOK://接听状态

                Log.i("i", "接听状态");

                break;

            case TelephonyManager.CALL_STATE_RINGING://响铃状态

                Log.i("i", "响铃状态");

                break;

            default:

                break;

            }

        }

    }

    @Override

    public IBinder onBind(Intent intent) {

        return null;

    }

}

MyService.java

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:onClick="startService"

        android:text="启动一个监听电话服务"

        />

</LinearLayout>

activity_main.xml

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

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

    package="com.shellway.myservice"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <service android:name=".MyService"></service>

    </application>

</manifest>

AndroidManifest.xml

运行结果截图：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

练习4：在通话的同时刻录音频

package com.shellway.myservice;

import java.io.File;

import java.io.IOException;

import android.app.Service;

import android.content.Context;

import android.content.Intent;

import android.media.MediaRecorder;

import android.os.Environment;

import android.os.IBinder;

import android.telephony.PhoneStateListener;

import android.telephony.TelephonyManager;

import android.util.Log;

public class MyService extends Service {

    //定义一个系统默认的电话服务管理者

    private TelephonyManager tm = null;

    private MyPhoneStateListener listener;

    //声明一个音频刻录机

    private MediaRecorder mr;

    //当服务被创建的时候调用该方法

    @Override

    public void onCreate() {

        super.onCreate();

        listener = new MyPhoneStateListener();

        tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        //监听电话的呼叫状态

        tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);

    }

    private final class MyPhoneStateListener extends PhoneStateListener{

        String fileName ;

        @Override

        public void onCallStateChanged(int state, String incomingNumber) {

            // TODO Auto-generated method stub

            super.onCallStateChanged(state, incomingNumber);

            switch (state) {

            case TelephonyManager.CALL_STATE_IDLE://闲置状态

                Log.i("i", "闲置状态");

                Log.i("i", incomingNumber);

                if (mr!=null) {

                    mr.stop();

                    mr.reset();

                    mr.release();

                    mr = null;

                }

                if (fileName!=null) {

                    //这里可以写一些上传录制的音频到服务器

                    //默认只能刻录自己的声音，若要刻录对方声音就要对底层进行修改

                    Log.i("i", fileName);

                }

                break;

            case TelephonyManager.CALL_STATE_OFFHOOK://接听状态

                Log.i("i", "接听状态");

                mr = new MediaRecorder();

                //1、设置刻录的音频来源,来自麦克风

                mr.setAudioSource(MediaRecorder.AudioSource.MIC);

                //2、设置所刻录的音频输出格式

                mr.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);

                //3、设置输出数据的编码

                mr.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

                File file = new File(Environment.getExternalStorageDirectory(),

                                      System.currentTimeMillis()+".3gp");

                //获取文件名，如果在刻录完成后可以把它上传到服务器,就要用到 httpClient 3.0

                 fileName = file.getName();

                //4、设置输出的路径

                mr.setOutputFile(file.getAbsolutePath());

                try {

                    //准备刻录

                    mr.prepare();

                    //开始刻录

                    mr.start();

                } catch (IllegalStateException e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                } catch (IOException e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

                break;

            case TelephonyManager.CALL_STATE_RINGING://响铃状态

                Log.i("i", "响铃状态");

                break;

            default:

                break;

            }

        }

    }

    @Override

    public IBinder onBind(Intent intent) {

        return null;

    }

    @Override

    public void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

    }

}

在练习3项目的MyService类中添加录音的代码

同时添加录音权限和外存储权限：

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>

    <uses-permission android:name="android.permission.RECORD_AUDIO"/>

运行结果截图：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

Service的生命周期：

如果用startService()去启动服务。只能通过stopService()的方式去停止，且：
onCreate() 只会被调用一次
onStart() 只要启动就会多次调用
onDestory() 只会被调用一次

如果用bindService()去启动(绑定)服务：
onCreate() 只会被调用一次
onBind() 只会被调用一次
onUnbind() 只会被调用一次
onDestroy() 只会被调用一次
注意：
如果访问者退出，需要把连接释放。
可以多次绑定，但是解绑服务只能执行一次，多次解绑就会出错。
用bindService()后要记得解绑，若绑定后没有解绑而直接退出，则会出现以下异常：
09-01 04:10:53.014: E/ActivityThread(5415):
Activity cn.itcast.service.MainActivity has leaked ServiceConnection cn.itcast.service.MainActivity$MyServiceConnection@44ee6248 that was originally bound here

服务里面能否执行耗时的操作？
答：服务里面是不能执行耗时的操作。如果需要执行耗时的操作：可以开启子线程来执行。
在开发的时候往往都需要和服务进行通信，就需要使用bindService()来启动服务。

Service的生命周期练习：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

package com.shellway.servicelifecycle;

import android.support.v7.app.ActionBarActivity;

import android.content.ComponentName;

import android.content.Intent;

import android.content.ServiceConnection;

import android.os.Bundle;

import android.os.IBinder;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

public class MainActivity extends ActionBarActivity {

    private MyServiceConnection conn = null;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

    //用startService方式开启一个服务

    public void startService(View view){

        Intent intent = new Intent(this,ServiceLifeCycle.class);

        startService(intent);

    }

    //用startService方式开启一个服务,只能用stopService()去停止这个服务

    public void stopService(View view){

        Intent intent = new Intent(this,ServiceLifeCycle.class);

        stopService(intent);

    }

    //绑定服务,即用bindService()开启一个服务

    public void bindService(View view){

        Intent intent = new Intent(this,ServiceLifeCycle.class);

        bindService(intent, conn,  BIND_AUTO_CREATE);

    }

    public void unbindService(View view){

        //解绑服务

        unbindService(conn);

        conn = null;

    }

    private class MyServiceConnection implements ServiceConnection {

        @Override

        public void onServiceConnected(ComponentName name, IBinder service) {

            // TODO Auto-generated method stub

        }

        @Override

        public void onServiceDisconnected(ComponentName name) {

            // TODO Auto-generated method stub

        }

    }

    @Override

    protected void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        if (conn!=null) {

            //解绑服务

            unbindService(conn);

            conn = null;

        }

    }

}

MainActivity.java

package com.shellway.servicelifecycle;

import android.app.Service;

import android.content.Intent;

import android.content.ServiceConnection;

import android.os.IBinder;

import android.util.Log;

public class ServiceLifeCycle extends Service {

    @Override

    public void onCreate() {

        // TODO Auto-generated method stub

        super.onCreate();

        Log.i("i", " onCreate ");

    }

    @Override

    public void onStart(Intent intent, int startId) {

        // TODO Auto-generated method stub

        super.onStart(intent, startId);

        Log.i("i", " onStart ");

    }

    @Override

    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        Log.i("i", " onBind ");

        return null;

    }

    @Override

    public void unbindService(ServiceConnection conn) {

        // TODO Auto-generated method stub

        super.unbindService(conn);

        Log.i("i", " unbindService ");

    }

    @Override

    public void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        Log.i("i", " onDestroy ");

    }

}

ServiceLifeCycle.java

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="启动服务startService"

        android:onClick="startService"

        />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="停止服务stopService"

        android:onClick="stopService"

        />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="绑定服务bindService"

        android:onClick="bindService"

        />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="解绑服务unbindService"

        android:onClick="unbindService"

        />

</LinearLayout>

activity_main.xml

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

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

    package="com.shellway.servicelifecycle"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <service android:name=".ServiceLifeCycle"></service>

    </application>

</manifest>

AndroidMainfest.xml

运行结果截图：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

如何调用服务里面的方法？步骤：
1 设计一个接口：IStudentQueryService Student queryStudent(int no);
2 在activity里面进行绑定操作：
bindService(intent,conn,flag);
3 写一个连接实现类：

private final class MyServiceConnection implements ServiceConnection{

    public void onServiceConnected(ComponentName name, IBinder service) {

        // TODO Auto-generated method stub

        ibinder = (IStudnetQueryService) service;

    }

    public void onServiceDisconnected(ComponentName name) {

        // TODO Auto-generated method stub

        conn = null;

        ibinder = null;

    }

}

4 在activity里面用IStudentQueryService 来接收onServiceConnected(ComponentName name, IBinder service)
返回过来的IBinder对象。

5 写一个StudentService extends Service ,重写onBind()
编译一个内部类StudentBinder extends Binder implements IStudnetQueryService

6 创建StudentBinder的对象，通过onBind()方法返回。
7 在activity通过onBind()返回的对象调用服务里面的方法。

练习：访问本地服务的方法

java攻城狮之路(Android篇)--BroadcastReceiver&Service

package com.shellway.callservicemethods;

import com.shellway.callservicemethods.domain.Student;

import com.shellway.callservicemethods.imp.IStudentService;

import android.support.v7.app.ActionBarActivity;

import android.content.ComponentName;

import android.content.Intent;

import android.content.ServiceConnection;

import android.os.Bundle;

import android.os.IBinder;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.EditText;

import android.widget.TextView;

public class MainActivity extends ActionBarActivity {

    private MyServiceConnection conn;

    private EditText et_id;

    private IStudentService istu;

    private TextView tv;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

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

        tv = (TextView) findViewById(R.id.tv_show);

        //创建一个绑定服务的连接

        conn = new MyServiceConnection();

        //应用一启动就绑定一个服务

        Intent intent = new Intent(this,CallServiceMethods.class);

        bindService(intent, conn,  BIND_AUTO_CREATE);

    }

    //点击查询按钮操作

    public void query(View view){

        //获得用户输入的数据

        String id = et_id.getText().toString();

        //调用本地服务里面的方法

        Student stu = istu.getStudent(Integer.valueOf(id));

        //把返回数据设置到界面

        tv.setText(stu.toString());

    }

    private class MyServiceConnection implements ServiceConnection{

        @Override

        public void onServiceConnected(ComponentName name, IBinder service) {

            // TODO Auto-generated method stub

            //因为在服务中接口的实现类继承了IBinder，所以可以把它通过Ibinder这个通道返回

            istu = (IStudentService) service;

        }

        @Override

        public void onServiceDisconnected(ComponentName name) {

            // TODO Auto-generated method stub

            conn = null;

            istu = null;

        }

    }

    @Override

    protected void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        //当界面退出时记得解绑

        if (conn!=null) {

            unbindService(conn);

            conn=null;

        }

    }

}

MainActivity.java

package com.shellway.callservicemethods;

import com.shellway.callservicemethods.domain.Student;

import com.shellway.callservicemethods.imp.IStudentService;

import android.app.Service;

import android.content.Intent;

import android.os.Binder;

import android.os.IBinder;

public class CallServiceMethods extends Service {

    //定义一个我们自定义的接口的实现类

    private MyStudentService iBinder = new MyStudentService();

    //模拟一个学生信息数据库

    Student[] students = new Student[]{new Student(),new Student(1,"韩信",67),

            new Student(2,"蒙恬",58),new Student(3,"颜路",25),new Student(4,"张良",28)};

    @Override

    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        return iBinder;

    }

    private class MyStudentService extends Binder implements IStudentService{

        @Override

        public Student getStudent(int id) {

            // TODO Auto-generated method stub

            return reStudent(id);

        }

    }

    //通过传过来的学生ID获得学生信息，这里是被调用的服务里面的方法

    public Student reStudent(int id){

        return students[id];

    }

}

CallServiceMethods.java

package com.shellway.callservicemethods.domain;

public class Student {

    private int id;

    private String name;

    private int age;

    public Student() {

        super();

        // TODO Auto-generated constructor stub

    }

    public Student(int id, String name, int age) {

        super();

        this.id = id;

        this.name = name;

        this.age = age;

    }

    public int getId() {

        return id;

    }

    public void setId(int id) {

        this.id = id;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public int getAge() {

        return age;

    }

    public void setAge(int age) {

        this.age = age;

    }

    @Override

    public String toString() {

        return "Student [id=" + id + ", name=" + name + ", age=" + age + "]";

    }

}

Student.java

package com.shellway.callservicemethods.imp;

import com.shellway.callservicemethods.domain.Student;

public interface IStudentService {

    public Student getStudent(int id);

}

IStudentService.java

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="请输入要查询学生的学号：" />

    <EditText

        android:id="@+id/et_id"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:onClick="query"

        android:text="查询"

        />

    <TextView

        android:id="@+id/tv_show"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="学生信息"

        />

</LinearLayout>

activity_main.xml

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

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

    package="com.shellway.callservicemethods"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <service android:name=".CallServiceMethods"></service>

    </application>

</manifest>

AndroidManifest.xml

运行结果截图：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

上面的操作是一个本地的服务。在开发的时候有可能还会去调用别人应用里面提供好的服务。

远程绑定服务，调用服务里面的方法。这里一两个名词：IPC(Inter-Process Communication,进程间通信)和AIDL
1 编写一个接口，再把接口文件修改为aidl,不能有修饰符。
如果我们使用了自定义对象需要实现Parcelable接口，还需要定义个一个aidl文件对这个类进行一个描述(Student.aidl).
编译器就会在gen目录下面生成对应的xx.java文件
2 在服务里面创建一个内部类：extends Stub 实现未实现的方法。
生成这个类的对象通过onBind()方法返回。

3 在客户端绑定服务。
注意：

public void onServiceConnected(ComponentName name, IBinder service) {

    // TODO Auto-generated method stub

    ibinder = Stub.asInterface(service);

}

练习：远程服务的绑定，即访问远程服务的方法。

java攻城狮之路(Android篇)--BroadcastReceiver&Service

服务端：注意运行的时候先启动服务端

package com.shellway.callremoteservice;

import android.support.v7.app.ActionBarActivity;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

public class MainActivity extends ActionBarActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

}

MainActivity.java

package com.shellway.callremoteservice;

import com.shellway.callremoteservice.domain.Student;

import com.shellway.callremoteservice.imp.IStudentService.Stub;

import android.app.Service;

import android.content.Intent;

import android.os.IBinder;

import android.os.RemoteException;

public class CallRemoteService extends Service {

    //自定义一个类继承Stub

    private MyStudentService iBinder = new MyStudentService();

    //模拟虚拟数据

    Student[] students = new Student[]{new Student(1,"荆轲",67),new Student(2,"端慕容",58),

                                       new Student(3,"高渐离",25),new Student(4,"高月",28)};

    @Override

    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        //通过ononBind()返回自定义类的对象

        return iBinder;

    }

    private class MyStudentService extends Stub{

        @Override

        public Student getStudent(int id) throws RemoteException {

            // TODO Auto-generated method stub

            return reStudent(id);

        }

    }

    //获取数据

    public  Student reStudent(int id){

        return students[id-1];

    }

}

CallRemoteService.java

package com.shellway.callremoteservice.domain;

import android.os.Parcel;

import android.os.Parcelable;

public class Student implements Parcelable {

    private int id;

    private String name;

    private int age;

    public Student(int id, String name, int age) {

        super();

        this.id = id;

        this.name = name;

        this.age = age;

    }

    @Override

    public int describeContents() {

        // TODO Auto-generated method stub

        return 0;

    }

    @Override

    public void writeToParcel(Parcel dest, int flags) {

        // TODO Auto-generated method stub

        dest.writeInt(id);

        dest.writeString(name);

        dest.writeInt(age);

    }

     public static final Parcelable.Creator<Student> CREATOR

         = new Parcelable.Creator<Student>() {

     public Student createFromParcel(Parcel in) {

         return new Student(in);

     }

     public Student[] newArray(int size) {

         return new Student[size];

     }

    };

    public Student(Parcel in){

        id = in.readInt();

        name = in.readString();

        age = in.readInt();

    }

    @Override

    public String toString() {

        return "Student [id=" + id + ", name=" + name + ", age=" + age + "]";

    }

}

Student.java

package com.shellway.callremoteservice.domain;

parcelable Student;

Student.aidl

package com.shellway.callremoteservice.imp;

import com.shellway.callremoteservice.domain.Student;

interface IStudentService {

 Student getStudent(int id);

}

IStudentService.aidl

<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="com.shellway.callremoteservice.MainActivity" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/hello_world" />

</RelativeLayout>

activity_main.xml

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

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

    package="com.shellway.callremoteservice"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <!-- 这里的service要给它一个action,好让它对外提供接口 -->

        <service android:name=".CallRemoteService">

            <intent-filter >

                <action android:name="com.shellway.callremoteservice.service"/>

            </intent-filter>

        </service>

    </application>

</manifest>

AndroidManifest.xml

客户端：注意这里面的另外两个包中的类都要从服务端拷贝过来，所以客户端就不贴一样的代码了。

package com.shellway.callremoteservicemethods;

import android.content.ComponentName;

import android.content.Intent;

import android.content.ServiceConnection;

import android.os.Bundle;

import android.os.IBinder;

import android.os.RemoteException;

import android.support.v7.app.ActionBarActivity;

import android.view.View;

import android.widget.EditText;

import android.widget.TextView;

import com.shellway.callremoteservice.domain.Student;

import com.shellway.callremoteservice.imp.IStudentService;

import com.shellway.callremoteservice.imp.IStudentService.Stub;

public class MainActivity extends ActionBarActivity {

    private IStudentService iBinder;

    private MyServiceConnection conn;

    private EditText et_id;

    private TextView tv;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

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

        tv = (TextView) findViewById(R.id.tv_show);

        conn = new MyServiceConnection();

        //程序一开始就要绑定一个远程服务

        Intent intent = new Intent();

        intent.setAction("com.shellway.callremoteservice.service");

        bindService(intent, conn, BIND_AUTO_CREATE);

    }

    public void query(View view){

        String id = et_id.getText().toString();

        try {

            //这里是调用远程服务中的方法，即自己先前在服务端定义接口实现类，

            //然后New出一个对象并传过来，通过它来调用里面服务里面的方法

            Student stu = iBinder.getStudent(Integer.valueOf(id));

            tv.setText(stu.toString());

        } catch (NumberFormatException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (RemoteException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

    private class MyServiceConnection implements ServiceConnection{

        @Override

        public void onServiceConnected(ComponentName name, IBinder service) {

            // TODO Auto-generated method stub

            //这里是得到远程服务中，自己先前在服务端定义接口实现类的对象

            iBinder = Stub.asInterface(service);

        }

        @Override

        public void onServiceDisconnected(ComponentName name) {

            // TODO Auto-generated method stub

        }

    }

    @Override

    protected void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        unbindService(conn);

    }

}

MainActivity.java

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

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="请输入要查询学生的学号：" />

    <EditText

        android:id="@+id/et_id"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:onClick="query"

        android:text="查询"

        />

    <TextView

        android:id="@+id/tv_show"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="学生信息"

        />

</LinearLayout>

activity_main.xml

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

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

    package="com.shellway.callremoteservicemethods"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

AndroidManifest.xml

运行效果截图：

java攻城狮之路(Android篇)--BroadcastReceiver&Service

练习：调用Android底层已经实现的挂断电话endcall()方法，这里也用到了调用远程服务里方法知识

java攻城狮之路(Android篇)--BroadcastReceiver&Service

/* //device/java/android/android/content/Intent.aidl

**

** Copyright 2007, The Android Open Source Project

**

** Licensed under the Apache License, Version 2.0 (the "License");

** you may not use this file except in compliance with the License.

** You may obtain a copy of the License at

**

**     http://www.apache.org/licenses/LICENSE-2.0

**

** Unless required by applicable law or agreed to in writing, software

** distributed under the License is distributed on an "AS IS" BASIS,

** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

** See the License for the specific language governing permissions and

** limitations under the License.

*/

package android.telephony;

parcelable NeighboringCellInfo;

NeighboringCellInfo.aidl

/*

 * Copyright (C) 2007 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.internal.telephony;

import android.os.Bundle;

import java.util.List;

import android.telephony.NeighboringCellInfo;

/**

 * Interface used to interact with the phone.  Mostly this is used by the

 * TelephonyManager class.  A few places are still using this directly.

 * Please clean them up if possible and use TelephonyManager insteadl.

 *

 * {@hide}

 */

interface ITelephony {

    /**

     * Dial a number. This doesn't place the call. It displays

     * the Dialer screen.

     * @param number the number to be dialed. If null, this

     * would display the Dialer screen with no number pre-filled.

     */

    void dial(String number);

    /**

     * Place a call to the specified number.

     * @param number the number to be called.

     */

    void call(String number);

    /**

     * If there is currently a call in progress, show the call screen.

     * The DTMF dialpad may or may not be visible initially, depending on

     * whether it was up when the user last exited the InCallScreen.

     *

     * @return true if the call screen was shown.

     */

    boolean showCallScreen();

    /**

     * Variation of showCallScreen() that also specifies whether the

     * DTMF dialpad should be initially visible when the InCallScreen

     * comes up.

     *

     * @param showDialpad if true, make the dialpad visible initially,

     *                    otherwise hide the dialpad initially.

     * @return true if the call screen was shown.

     *

     * @see showCallScreen

     */

    boolean showCallScreenWithDialpad(boolean showDialpad);

    /**

     * End call if there is a call in progress, otherwise does nothing.

     *

     * @return whether it hung up

     */

    boolean endCall();

    /**

     * Answer the currently-ringing call.

     *

     * If there's already a current active call, that call will be

     * automatically put on hold.  If both lines are currently in use, the

     * current active call will be ended.

     *

     * TODO: provide a flag to let the caller specify what policy to use

     * if both lines are in use.  (The current behavior is hardwired to

     * "answer incoming, end ongoing", which is how the CALL button

     * is specced to behave.)

     *

     * TODO: this should be a oneway call (especially since it's called

     * directly from the key queue thread).

     */

    void answerRingingCall();

    /**

     * Silence the ringer if an incoming call is currently ringing.

     * (If vibrating, stop the vibrator also.)

     *

     * It's safe to call this if the ringer has already been silenced, or

     * even if there's no incoming call.  (If so, this method will do nothing.)

     *

     * TODO: this should be a oneway call too (see above).

     *       (Actually *all* the methods here that return void can

     *       probably be oneway.)

     */

    void silenceRinger();

    /**

     * Check if we are in either an active or holding call

     * @return true if the phone state is OFFHOOK.

     */

    boolean isOffhook();

    /**

     * Check if an incoming phone call is ringing or call waiting.

     * @return true if the phone state is RINGING.

     */

    boolean isRinging();

    /**

     * Check if the phone is idle.

     * @return true if the phone state is IDLE.

     */

    boolean isIdle();

    /**

     * Check to see if the radio is on or not.

     * @return returns true if the radio is on.

     */

    boolean isRadioOn();

    /**

     * Check if the SIM pin lock is enabled.

     * @return true if the SIM pin lock is enabled.

     */

    boolean isSimPinEnabled();

    /**

     * Cancels the missed calls notification.

     */

    void cancelMissedCallsNotification();

    /**

     * Supply a pin to unlock the SIM.  Blocks until a result is determined.

     * @param pin The pin to check.

     * @return whether the operation was a success.

     */

    boolean supplyPin(String pin);

    /**

     * Supply puk to unlock the SIM and set SIM pin to new pin.

     *  Blocks until a result is determined.

     * @param puk The puk to check.

     *        pin The new pin to be set in SIM

     * @return whether the operation was a success.

     */

    boolean supplyPuk(String puk, String pin);

    /**

     * Handles PIN MMI commands (PIN/PIN2/PUK/PUK2), which are initiated

     * without SEND (so <code>dial</code> is not appropriate).

     *

     * @param dialString the MMI command to be executed.

     * @return true if MMI command is executed.

     */

    boolean handlePinMmi(String dialString);

    /**

     * Toggles the radio on or off.

     */

    void toggleRadioOnOff();

    /**

     * Set the radio to on or off

     */

    boolean setRadio(boolean turnOn);

    /**

     * Request to update location information in service state

     */

    void updateServiceLocation();

    /**

     * Enable location update notifications.

     */

    void enableLocationUpdates();

    /**

     * Disable location update notifications.

     */

    void disableLocationUpdates();

    /**

     * Enable a specific APN type.

     */

    int enableApnType(String type);

    /**

     * Disable a specific APN type.

     */

    int disableApnType(String type);

    /**

     * Allow mobile data connections.

     */

    boolean enableDataConnectivity();

    /**

     * Disallow mobile data connections.

     */

    boolean disableDataConnectivity();

    /**

     * Report whether data connectivity is possible.

     */

    boolean isDataConnectivityPossible();

    Bundle getCellLocation();

    /**

     * Returns the neighboring cell information of the device.

     */

    List<NeighboringCellInfo> getNeighboringCellInfo();

     int getCallState();

     int getDataActivity();

     int getDataState();

    /**

     * Returns the current active phone type as integer.

     * Returns TelephonyManager.PHONE_TYPE_CDMA if RILConstants.CDMA_PHONE

     * and TelephonyManager.PHONE_TYPE_GSM if RILConstants.GSM_PHONE

     */

    int getActivePhoneType();

    /**

     * Returns the CDMA ERI icon index to display

     */

    int getCdmaEriIconIndex();

    /**

     * Returns the CDMA ERI icon mode,

     * 0 - ON

     * 1 - FLASHING

     */

    int getCdmaEriIconMode();

    /**

     * Returns the CDMA ERI text,

     */

    String getCdmaEriText();

    /**

     * Returns true if OTA service provisioning needs to run.

     * Only relevant on some technologies, others will always

     * return false.

     */

    boolean needsOtaServiceProvisioning();

    /**

      * Returns the unread count of voicemails

      */

    int getVoiceMessageCount();

    /**

      * Returns the network type

      */

    int getNetworkType();

    /**

     * Return true if an ICC card is present

     */

    boolean hasIccCard();

    /**

     * Return if the current radio is LTE on CDMA. This

     * is a tri-state return value as for a period of time

     * the mode may be unknown.

     *

     * @return {@link Phone#LTE_ON_CDMA_UNKNOWN}, {@link Phone#LTE_ON_CDMA_FALSE}

     * or {@link PHone#LTE_ON_CDMA_TRUE}

     */

    int getLteOnCdmaMode();

}

ITelephony.aidl

package com.shellway.endcall;

import android.support.v7.app.ActionBarActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

public class MainActivity extends ActionBarActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //这里我们让应用一启动就开始一个服务

        Intent intent = new Intent(this,EndCallService.class);

        startService(intent);

    }

}

MainActivity.java

package com.shellway.endcall;

import java.lang.reflect.Method;

import com.android.internal.telephony.ITelephony;

import android.app.Service;

import android.content.Context;

import android.content.Intent;

import android.database.ContentObserver;

import android.net.Uri;

import android.os.Handler;

import android.os.IBinder;

import android.provider.CallLog.Calls;

import android.telephony.PhoneStateListener;

import android.telephony.TelephonyManager;

public class EndCallService extends Service {

    private TelephonyManager tm;

    private MyPhoneStateListener listener;

    @Override

    public void onCreate() {

        // TODO Auto-generated method stub

        super.onCreate();

        listener = new MyPhoneStateListener();

        tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);

    }

    @Override

    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        return null;

    }

    private class MyPhoneStateListener extends PhoneStateListener {

        @Override

        public void onCallStateChanged(int state, String incomingNumber) {

            // TODO Auto-generated method stub

            super.onCallStateChanged(state, incomingNumber);

            switch (state) {

            case TelephonyManager.CALL_STATE_IDLE://闲置状态

                break;

            case TelephonyManager.CALL_STATE_OFFHOOK://通话状态

                break;

            case TelephonyManager.CALL_STATE_RINGING://响铃状态

            /**

             * Android里面所有的底层服务都是交给了一个类ServiceManager来管理，我们可以用Everything工具来找到这个类

             * 这个类里面有IBinder getService(String name),void addService(String name,IBinder service)

             * 这里我们要想得到Android给我们提供好的挂断电话方法endCall()，就得先得到它给我们返回的IBinder对象

             * 然后把它转成ITelephoneService

             */

                endcall(incomingNumber);

                break;

            default:

                break;

            }

        }

        public void endcall(String incomingNumber){

            if(incomingNumber.equals("5558")){

                try {

                    //这里为了搞到ServiceManager里的getService返回给我们一个IBinder对象，用了反射实现

                    Class clazz = Class.forName("android.os.ServiceManager");

                    Method method = clazz.getMethod("getService", String.class);

                    //这个是代理对象，我们还要对它进行转化

                    IBinder service = (IBinder) method.invoke(null, Context.TELEPHONY_SERVICE);

                    ITelephony ibinder = ITelephony.Stub.asInterface(service);

                    ibinder.endCall();

                    //注册一个内容提供者

                    getContentResolver().registerContentObserver(Calls.CONTENT_URI, true,

                                                      new MyContentObserver(incomingNumber));

                } catch (Exception e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

            }

        }

        private class MyContentObserver extends ContentObserver{

            private String incomingNumber;

            public MyContentObserver(String incomingNumber) {

                super(new Handler());

                // TODO Auto-generated constructor stub

                this.incomingNumber = incomingNumber;

            }

            @Override

            public void onChange(boolean selfChange) {

                // TODO Auto-generated method stub

                super.onChange(selfChange);

                //删除通话记录    通过记录的存储是一个异步的操作

                Uri uri = Calls.CONTENT_URI;

                getContentResolver().delete(uri, "number = ?", new String[]{"5558"});

                //取消内容观察者

                getContentResolver().unregisterContentObserver(this);

            }

        }

    }

}

EndCallService.java

<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="com.shellway.endcall.MainActivity" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/hello_world" />

</RelativeLayout>

activity_main.xml

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

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

    package="com.shellway.endcall"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="21" />

    <!-- 监听电话状态的权限 -->

    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>

    <!-- 挂断电话需要同打电话一样的权限 -->

    <uses-permission android:name="android.permission.CALL_PHONE"/>

    <!-- 读、写通话记录的权限 -->

    <uses-permission android:name="android.permission.READ_CALL_LOG"/>

    <uses-permission android:name="android.permission.WRITE_CALL_LOG"/>

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <service android:name=".EndCallService"></service>

    </application>

</manifest>

AndroidManifest.xml

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java攻城狮之路(Android篇)--BroadcastReceiver&Service

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