android 电话监听和拦截

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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

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