android 电话监听和拦截

一、首先在manifest.xml文件中获取监听电话权限，注册监听电话的Activity

<receiver android:name=".PhoneReceiver">
<intent-filter android:priority="1000">
<action android:name="android.intent.action.PHONE_STATE"/>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</receiver>

1  <!-- 添加访问手机电话状态的权限 -->
2     <uses-permission android:name="android.permission.READ_PHONE_STATE" />

二、实现过程中主要问题为接口ITelephony，是Android系统Phone类中TelephonyManager提供给上层应用程序用户与telephony进行操作交互的接口。，必须通过AIDL（Android Interface Definition Language,即Android接口定义语言）。

　　具体操作就是在src文件在新建一个包，包名为：com.android.internal.telephony，在这个包里面新建一个名为ITelephony.aidl ，本文主要通过接口获得endCall()函数来拦截电话。最后rebuild project一下，在android studio 本工程的packets同目录下自动生成ITelephony.java文件

/*
* 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 or go to the Home screen
*
* @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);
/**
* 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();
}

三、主要实现代码

在Activity中import com.android.internal.telephony.ITelephony;就可以使用ITelephony接口

package com.example.administrator.locker2;

import java.lang.reflect.Method;

import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;

import com.android.internal.telephony.ITelephony;

public class PhoneReceiver extends BroadcastReceiver {
String TAG = "PhoneReceiver";

@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)) {
// 如果是去电（拨出）
} else {
TelephonyManager tm = (TelephonyManager) context.getSystemService(Service.TELEPHONY_SERVICE);
// 设置一个监听器
tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);
}
}

PhoneStateListener listener = new PhoneStateListener() {

@Override
public void onCallStateChanged(int state, String incomingNumber) {
// state 当前状态 incomingNumber,貌似没有去电的API
super.onCallStateChanged(state, incomingNumber);
switch (state) {
//手机空闲了
case TelephonyManager.CALL_STATE_IDLE:
break;
//电话被挂起
case TelephonyManager.CALL_STATE_OFFHOOK:
break;
// 当电话呼入时
case TelephonyManager.CALL_STATE_RINGING:
Log.e(TAG, "来电号码是："+ incomingNumber);
// 如果该号码属于黑名单
if (incomingNumber.equals("*********")) {
// TODO:如果是黑名单，就进行屏蔽
stopCall();
　　　　　　　　　　　　　}
break;
}
}
};

public void stopCall() {

try {
Method method = Class.forName("android.os.ServiceManager").getMethod("getService", String.class);
// 获取远程TELEPHONY_SERVICE的IBinder对象的代理
IBinder binder = (IBinder) method.invoke(null, new Object[] { "phone" });
// 将IBinder对象的代理转换为ITelephony对象
ITelephony telephony = ITelephony.Stub.asInterface(binder);
// 挂断电话
telephony.endCall();
//telephony.cancelMissedCallsNotification();

} catch (Exception e) {
}

}

}

四、真机测试，当本机开启该应用时，拦截号码拨号方显示您所拨打的电话正在通话中