Android 实现电话拦截及拦截提示音功能的开发

  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：

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;   
  
  
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：

        实现方式2：

       1、建立包android.refuseCalling。

       refuseCalling.java代码如下：

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 phonen");   
    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：

  
  
package com.android.internal.telephony;   
  
import android.os.Bundle;   
import java.util.List;   
import android.telephony.NeighboringCellInfo;   
//import com.frameSpeed.NeighboringCellInfo;   
  
  
interface ITelephony {   
  
    
  void dial(String number);  
  
  void call(String number);   
  
    
  boolean showCallScreen();   
  
    
  boolean showCallScreenWithDialpad(boolean showDialpad);   
  
    
  boolean endCall();   
  
    
  void answerRingingCall();   
  
    
  void silenceRinger();   
  
    
  boolean isOffhook();   
  
    
  boolean isRinging();   
  
    
  boolean isIdle();   
  
    
  boolean isRadioOn();   
  
    
  boolean isSimPinEnabled();   
  
    
  void cancelMissedCallsNotification();   
  
    
  boolean supplyPin(String pin);   
     
     
  boolean supplyPuk(String puk, String pin);   
  
    
  boolean handlePinMmi(String dialString);  
  
  void toggleRadioonOff();   
  
    
  boolean setRadio(boolean turnOn);   
  
    
  void updateServiceLocation();   
  
    
  void enableLocationUpdates();   
  
    
  void disableLocationUpdates();   
  
    
  int enableApnType(String type);   
  
    
  int disableApnType(String type);   
  
    
  boolean enableDataConnectivity();   
  
    
  boolean disableDataConnectivity();   
  
    
  boolean isDataConnectivityPossible();   
  
  Bundle getCellLocation();   
  
    
  List getNeighboringCellInfo();   
  
   int getCallState();   
   int getDataActivity();   
   int getDataState();   
  
    
  int getActivePhoneType();   
  
    
  int getCdmaEriIconIndex();   
  
    
  int getCdmaEriIconMode();   
  
    
  String getCdmaEriText();   
  
    
  boolean needsOtaServiceProvisioning();   
  
    
  int getVoiceMessageCount();   
  
    
  int getNetworkType();   
     
    
  boolean hasIccCard();   
}   
  
parcelable NeighboringCellInfo; 

  4、AndroidManifest.xml代码如下：

希望通过此文能对开发Android 开发电话应用的朋友提供帮助,谢谢大家对本站的支持！