Android四大组件应用系列——实现电话阻截和电话录音

public class TelReceiver extends BroadcastReceiver {    public TelReceiver() {    }    @Override    public void onReceive(Context context, Intent intent) {        Intent i=new Intent(context,ListenPhoneService.class);        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        i.setAction(intent.getAction());        i.putExtra(TelephonyManager.EXTRA_INCOMING_NUMBER,                intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER));//电话号码        i.putExtra(TelephonyManager.EXTRA_STATE,                intent.getStringExtra(TelephonyManager.EXTRA_STATE));//电话状态        context.startService(i);//启动服务    }}

<receiver android:name=".TelReceiver" >    <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>

public class ListenPhoneService  extends  Service {    private  AudioManager mAudioManager;    private TelephonyManager tm;    public ListenPhoneService() {    }    @Override    public void onCreate() {        super.onCreate();        mAudioManager=(AudioManager)getSystemService(Context.AUDIO_SERVICE);        tm=(TelephonyManager)getSystemService(Service.TELEPHONY_SERVICE);    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        if(intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)){//去电广播，android没有来电话广播        }else{//去掉拨打电话就是来电状态了  //方法1//获得来电电话// String number=intent.getStringExtra(TelephonyManager.EXTRA_INCOMING_NUMBER);//获得电话状态// String state=intent.getStringExtra(TelephonyManager.EXTRA_STATE);//            Log.d("jereh", "incoming phone:" + number);//            Log.d("jereh","call state:"+state);//            TelephonyManager.EXTRA_STATE_IDLE: 没有来电 或者 挂断//            TelephonyManagerEXTRA_STATE_OFFHOOK: 接起电话//            TelephonyManager.EXTRA_STATE_RINGING:当电话呼入时,响铃时//           if(state.equals(TelephonyManager.EXTRA_STATE_RINGING)){//           if(number.equals("13280998858")){//拦截指定的电话号码//               mAudioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT);//               Log.d("jereh","电话被拦截");//              stopCall();//                    mAudioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL);//恢复铃声//                }//            }else if(state.equals(TelephonyManager.EXTRA_STATE_OFFHOOK)){        //接起电话//                recordCall();//开始录音//            }else if(state.equals(TelephonyManager.EXTRA_STATE_IDLE)){//                stopCall();//停止录音//            } //方法2            // 设置一个监听器,监听电话状态            tm.listen(listener,PhoneStateListener.LISTEN_CALL_STATE);        }        return super.onStartCommand(intent, flags, startId);    }    /**     * 挂断电话     */    private void stopCall(){        try {            //Android的设计将ServiceManager隐藏了，所以只能使用反射机制获得。            Method method=Class.forName("android.os.ServiceManager").getMethod("getService", String.class);            IBinder binder=(IBinder)method.invoke(null, new Object[]{"phone"});//获得系统电话服务            ITelephony telephoney=ITelephony.Stub.asInterface(binder);            telephoney.endCall();//挂断电话            stopSelf();//停止服务        } catch (Exception e) {            e.printStackTrace();        }    }    PhoneStateListener listener=new PhoneStateListener(){        @Override        public  void onCallStateChanged(int state,String incomingNumber){            switch (state){                //手机空闲了                case TelephonyManager.CALL_STATE_IDLE:                     stopCall();//停止录音                    break;                //接起电话                case TelephonyManager.CALL_STATE_OFFHOOK:                    recordCall();//开始录音                    break;                // 响铃时                case TelephonyManager.CALL_STATE_RINGING:                    Log.e("jereh", "来电号码是："+ incomingNumber);                    // 如果该号码属于黑名单                    if (incomingNumber.equals("123456")) {                        // 如果是黑名单，就进行屏蔽                        stopCall();                    }                    break;            }        }    };    /**     * 停止录音     */    private void stopRecord(){        if(recording){            recorder.stop();            recorder.release();            recording=false;            stopSelf();//停止服务        }    }    /**     * 电话录音     */    private MediaRecorder recorder;    private boolean recording ;    private void recordCall(){        Log.d("jereh", "record calling")  if( Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){       recorder=new MediaRecorder();       recorder.setAudioSource(MediaRecorder.AudioSource.MIC);//读麦克风的声音       recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//设置输出格式       recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);// 编码方式       File file=new    File(Environment.getDownloadCacheDirectory().getAbsolutePath(),"recorder");      if(!file.exists()){                file.mkdir();       }   recorder.setOutputFile(file.getAbsolutePath() + "/"   + System.currentTimeMillis() + "3gp");// 存放的位置是放在sd卡recorder目录下    try {            recorder.prepare();            recorder.start();            recording=true;       } catch (IOException e) {                e.printStackTrace();      }      } }    @Override    public IBinder onBind(Intent intent) {         throw new UnsupportedOperationException("Not yet implemented");    }}

<service    android:name=".ListenPhoneService"    android:enabled="true"    android:exported="true" ></service>

<!-- 添加访问手机电话状态的权限 --><uses-permission android:name="android.permission.READ_PHONE_STATE" /><!-- 拨打电话权限 --><uses-permission android:name="android.permission.CALL_PHONE" /><!-- 监听手机去电的权限 --><uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" /><!-- 在SDCard中创建与删除文件权限 --><uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" /><!-- 往SDCard写入数据权限 --><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />