Android电话拦截及拦截提示音的实现

   本文所讲的内容是在Android系统中如何写程序进行 电话拦截，并发出拦截提示音提醒用户，可以说此功能还是比较实用的。

       1、电话拦截

       这个功能大家可能都知道了，就是利用反射原理调用ITelephony的隐藏方法来实现。

       2、拦截后提示忙音/空号/已关机/已停机

       这个功能其实是要用到MMI指令，具体如何设置呼叫转移的指定可以参考这里 http://baike.baidu.com/view/206402.html?fromTaglist。

       在本文中我们会用到“遇忙转移”的功能。中国移动的设置方式是 **67#电话号码#，取消方式为 ##67#。”无条件转移“用21代替67即可。这两个指令可以直接在手机的拨号界面输入并拨号测试。ITelephony的endcall方法挂断电话后，会提示电话忙。如果事前设置好了忙时转移到一个空号/已关机/已停机的电话号码，就会提示您拨的电话号码是空号/已关机/已停机。

       其实大家可以下载 xxx卫士看下，它设置来电拒接模式后，都是会启动设置MMI指令的界面。然后再去“设置->通话设置->来电转接”，看看 “占线时转接” 设置好的电话号码，就可以知道空号/已关机/已停机对应的电话号码是什么了。

       1、修改一下BLOCKED_NUMBER这个变量值，把它设置为你要测试拦截的电话号码。

       2、全部功能是在一个Activity里实现的，所以大家要先运行这个Activity，然后点击“设置呼叫转移”，设置好呼叫转移后，不要关闭这个Activity，关了就拦截不了电话了。有心的朋友可以自己去写一个Service在后台运行拦截功能。

       实现方式1：

       代码如下：

Java代码

package net.toeach.android.callforwarding;

import java.lang.reflect.Method;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.media.AudioManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.RemoteException;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;

import com.android.internal.telephony.ITelephony;

/**
 * 演示如何设置呼叫转移，拦截电话（拦截后提示为空号）的例子
 * @author Tony from ToEach.
 * @email [email protected]
 */
public class MainActivity extends Activity {
 private static final String TAG = MainActivity.class.getSimpleName();

 private final static int OP_REGISTER = 100;
 private final static int OP_CANCEL = 200;

 private final static String BLOCKED_NUMBER = "1892501xxxx";//要拦截的号码
 //占线时转移，这里13800000000是空号，所以会提示所拨的号码为空号
    private final String ENABLE_SERVICE = "tel:**67*13800000000%23";
    //占线时转移
    private final String DISABLE_SERVICE = "tel:%23%2367%23";

 private IncomingCallReceiver mReceiver;
    private ITelephony iTelephony;
    private AudioManager mAudioManager;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        findViewById(R.id.btnEnable).setOnClickListener(new OnClickListener(){
   public void onClick(View v) {
          //设置呼叫转移
          Message message = mHandler.obtainMessage();
    message.what = OP_REGISTER;
    mHandler.dispatchMessage(message);
   }
        });

        findViewById(R.id.btnDisable).setOnClickListener(new OnClickListener(){
   public void onClick(View v) {
    //取消呼叫转移
             Message message = mHandler.obtainMessage();
       message.what = OP_CANCEL;
       mHandler.dispatchMessage(message);
   }
        });

        mReceiver = new IncomingCallReceiver();
  IntentFilter filter = new IntentFilter("android.intent.action.PHONE_STATE");
        registerReceiver(mReceiver, filter);// 注册BroadcastReceiver

        mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

        //利用反射获取隐藏的endcall方法
        TelephonyManager telephonyMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
  try {
   Method getITelephonyMethod = TelephonyManager.class.getDeclaredMethod("getITelephony", (Class[]) null);
   getITelephonyMethod.setAccessible(true);
   iTelephony = (ITelephony) getITelephonyMethod.invoke(telephonyMgr, (Object[]) null);
     } catch (Exception e) {
      e.printStackTrace();
     }
    }

    private Handler mHandler = new Handler() {
  public void handleMessage(Message response) {
      int what = response.what;
      switch(what) {
       case OP_REGISTER:{
        Intent i = new Intent(Intent.ACTION_CALL);
              i.setData(Uri.parse(ENABLE_SERVICE));
              startActivity(i);
        break;
       }
       case OP_CANCEL:{
        Intent i = new Intent(Intent.ACTION_CALL);
              i.setData(Uri.parse(DISABLE_SERVICE));
              startActivity(i);
        break;
       }
      }
  }
 };

 private class IncomingCallReceiver extends BroadcastReceiver{
  @Override
  public void onReceive(Context context, Intent intent) {
   String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
         Log.i(TAG, "State: "+ state);

   String number = intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);
         Log.d(TAG, "Incomng Number: " + number);

         if(state.equalsIgnoreCase(TelephonyManager.EXTRA_STATE_RINGING)){//电话正在响铃
          if(number.equals(BLOCKED_NUMBER)){//拦截指定的电话号码
           //先静音处理
           mAudioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT);
           Log.d(TAG, "Turn ringtone silent");

           try {
            //挂断电话
      iTelephony.endCall();
     } catch (RemoteException e) {
      e.printStackTrace();
     }

     //再恢复正常铃声
                 mAudioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
          }
         }
  }
 }
}

       AndroidManifest.xml如下：

XML/HTML代码

xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android "
      package="net.toeach.android.callforwarding"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <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>
    <uses-sdk android:minSdkVersion="8" />

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

manifest>

       实现方式2：

       1、建立包android.refuseCalling。

       refuseCalling.java代码如下：

Java代码

package android.refuseCalling;

import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import android.content.Context;
import android.content.Intent;
import android.os.RemoteException;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.TextView;
import com.android.internal.telephony.ITelephony;

public class refuseCalling extends Activity {

    private static final String TAG = "Telephony";
    private TextView view = null;
    private TelephonyManager tManager = null;
    private ITelephony iTelephony  = null;

     //占线时转移，提示所拨的号码为空号
    private final String ENABLE_SERVICE = "tel:**67*13800000000%23";
     //占线时转移，提示所拨的号码为关机
    private final String ENABLE_POWEROFF_SERVICE = "tel:**67*13810538911%23";
    //占线时转移，提示所拨的号码为停机
    private final String ENABLE_STOP_SERVICE = "tel:**21*13701110216%23";

    //占线时转移
    private final String DISABLE_SERVICE = "tel:%23%2321%23";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //打开监听电话功能
        TelephonyManager mTelephonyMgr = (TelephonyManager) this
                .getSystemService(Context.TELEPHONY_SERVICE);
        mTelephonyMgr.listen(new TeleListener(),
                PhoneStateListener.LISTEN_CALL_STATE);

        //gui
        view = new TextView(this);
        view.setText("listen the state of phone\n");
        setContentView(view);

        tManager = (TelephonyManager)this.getSystemService(Context.TELEPHONY_SERVICE);
        //初始化iTelephony
        Class  c = TelephonyManager.class;
        Method getITelephonyMethod = null;
        try {
        getITelephonyMethod = c.getDeclaredMethod("getITelephony", (Class[])null);
        getITelephonyMethod.setAccessible(true);
        } catch (SecurityException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        } catch (NoSuchMethodException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        }

        try {
        iTelephony = (ITelephony) getITelephonyMethod.invoke(tManager, (Object[])null);
        } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        } catch (InvocationTargetException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        }

        //启用空号提示
        Intent i = new Intent(Intent.ACTION_CALL);
        i.setData(Uri.parse(ENABLE_STOP_SERVICE));
        startActivity(i);
        Log.v(TAG, "启用空号提示");
    }

    class TeleListener extends PhoneStateListener {

        @Override
        public void onCallStateChanged(int state, String incomingNumber) {
            super.onCallStateChanged(state, incomingNumber);
            switch (state) {
            case TelephonyManager.CALL_STATE_IDLE: {
                Log.e(TAG, "CALL_STATE_IDLE");
                view.append("CALL_STATE_IDLE " + "\n");
                break;
            }
            case TelephonyManager.CALL_STATE_OFFHOOK: {
                Log.e(TAG, "CALL_STATE_OFFHOOK");
                view.append("CALL_STATE_OFFHOOK" + "\n");
                break;
            }
            case TelephonyManager.CALL_STATE_RINGING: {
                Log.e(TAG, "CALL_STATE_RINGING");
                view.append("CALL_STATE_RINGING" + "\n");
                try {
                    iTelephony.endCall();
                } catch (RemoteException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
                break;
            }
            default:
                break;
            }
        }
    }
    protected void onStop() {
        super.onStop();
        }
    protected void onDestroy() {
        super.onDestroy();
        finish();
        Intent i = new Intent(Intent.ACTION_CALL);
        i.setData(Uri.parse(DISABLE_SERVICE));
        startActivity(i);
        }
}

       2、建立包android.telephony。

       NeighboringCellInfo.aidl代码如下：

       package android.telephony;

       3、建立包 com.android.internal.telephony。

       ITelephony.aidl代码如下：

Java代码

/*
 *
 * Licensed under the  android 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;
//import com.FrameSpeed.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);

     /**
     * [ASD2-ES1|Connice|2011.04.14]
     */
    boolean supplyPuk(String puk, String pin);

    /**
     * Handles PIN MMI commands (PIN/PIN2/PUK/PUK2), which are initiated
     * without SEND (so dial 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 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();
}

parcelable NeighboringCellInfo;

       4、AndroidManifest.xml代码如下：

XML/HTML代码

xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="android.refuseCalling"
      android:versionCode="1"
      android:versionName="1.0">
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
     <uses-permission android:name="android.permission.CALL_PHONE" />
     <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".refuseCalling"
                  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>