挂断电话的实现(即类似于电话号码黑名单)

在文章的开头先列出以下需要注意的地方：

1、需要用到的权限如下：

<uses-permission android:name="android.permission.READ_PHONE_STATE"/><!--用于读取电话的状态-->
<uses-permission android:name="android.permission.WRITE_CONTACTS"/><!--用于删除来电记录-->
<uses-permission android:name="android.permission.CALL_PHONE"/><!--用于挂断电话-->

2、挂断电话所需要用到的类、方法、与包

类：

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

方法：

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

包：

所需要用到的包的下载路径为：

下载地址如下：

http://download.csdn.net/detail/caihongshijie6/6282451

代码如下：

在写代码之前先把所需要用到的包导进来。。

1、MainActivity

package com.njupt.endcall1;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

Intent intent = new Intent(this,PhoneService1.class);
startService(intent);
}

@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;
}

}

2、PhoneService

package com.njupt.endcall1;

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 PhoneService1 extends Service {

private TelephonyManager tm;
private MyPhoneStateListener listener;

@Override
public void onCreate() {
super.onCreate();

tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
listener = new MyPhoneStateListener();

tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
}

private class MyPhoneStateListener extends PhoneStateListener {
public MyPhoneStateListener() {
}

@Override
public void onCallStateChanged(int state, String incomingNumber) {
super.onCallStateChanged(state, incomingNumber);

switch (state) {
case TelephonyManager.CALL_STATE_IDLE:

break;
case TelephonyManager.CALL_STATE_OFFHOOK:
break;
case TelephonyManager.CALL_STATE_RINGING:
endcall(incomingNumber);
break;
default:
break;
}
}
}

private void endcall(String incomingNumber) {
try {
if (incomingNumber.equals("5560")) {
Class clazz = Class.forName("android.os.ServiceManager");
Method method = clazz.getMethod("getService", String.class);
IBinder ibinder =  (IBinder) method.invoke(null, Context.TELEPHONY_SERVICE);
ITelephony iTelephony = ITelephony.Stub.asInterface(ibinder);
iTelephony.endCall();

getContentResolver().registerContentObserver(Calls.CONTENT_URI,true, new MyContentObserver(new Handler(), incomingNumber));

}
} catch (Exception e) {
e.printStackTrace();
}
}

private class MyContentObserver extends ContentObserver{
private String incomingNumber;
public MyContentObserver(Handler handler , String incomingNumber) {
super(handler);
this.incomingNumber = incomingNumber;
}

@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);

Uri uri = Calls.CONTENT_URI;
getContentResolver().delete(uri," number = ? ", new String[]{incomingNumber});
getContentResolver().unregisterContentObserver(this);
}
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}

}

3、AndroidManifest.xml

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

<service android:name="com.njupt.endcall1.PhoneService1"/>