Androidは電話で自動録音する機能を実現します。

package com.sdvdxl.phonerecorder; 
 
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
 
import com.sdvdxl.outgoingcall.OutgoingCallState; 
 
import android.content.Context; 
import android.content.Intent; 
import android.util.Log; 
 
/** 
 * 
 * @author mrloong 
 *         
 * onPhoneStateChanged: mForegroundCall.getState()           
 * mBackgroundCall.getState()      
 *     DIALING       ，      ，        ， 
 * ALERTING     ，       ， 
 *    ACTIVE       
 *    DISCONNECTED            
 *    IDLE           
 *  
 */ 
public class ReadLog extends Thread { 
 private Context ctx; 
 private int logCount; 
  
 private static final String TAG = "LogInfo OutGoing Call"; 
  
 /** 
  *       
  * @author sdvdxl 
  *  
  */ 
 private static class CallViewState { 
  public static final String FORE_GROUND_CALL_STATE = "mForeground"; 
 } 
  
 /** 
  *      
  * @author sdvdxl 
  * 
  */ 
 private static class CallState { 
  public static final String DIALING = "DIALING"; 
  public static final String ALERTING = "ALERTING"; 
  public static final String ACTIVE = "ACTIVE"; 
  public static final String IDLE = "IDLE"; 
  public static final String DISCONNECTED = "DISCONNECTED"; 
 } 
  
 public ReadLog(Context ctx) { 
  this.ctx = ctx; 
 } 
  
 /** 
  *   Log  
  *        log 
  *          
  */ 
 @Override 
 public void run() { 
  Log.d(TAG, "        "); 
   
  String[] catchParams = {"logcat", "InCallScreen *:s"}; 
  String[] clearParams = {"logcat", "-c"}; 
   
  try { 
   Process process=Runtime.getRuntime().exec(catchParams); 
   InputStream is = process.getInputStream(); 
   BufferedReader reader = new BufferedReader(new InputStreamReader(is)); 
    
   String line = null; 
   while ((line=reader.readLine())!=null) { 
    logCount++; 
    //     
   Log.v(TAG, line); 
     
    //    512     
    if (logCount>512) { 
     //     
     Runtime.getRuntime().exec(clearParams) 
      .destroy();//    ，     
     logCount = 0; 
     Log.v(TAG, "-----------    ---------------"); 
    }  
     
    /*---------------------------------    -----------------------*/ 
    //   
    if (line.contains(ReadLog.CallViewState.FORE_GROUND_CALL_STATE) 
      && line.contains(ReadLog.CallState.IDLE)) { 
     Log.d(TAG, ReadLog.CallState.IDLE); 
    } 
     
    //    ，      ，    ，        ， 
    if (line.contains(ReadLog.CallViewState.FORE_GROUND_CALL_STATE) 
      && line.contains(ReadLog.CallState.DIALING)) { 
     //     
     Intent dialingIntent = new Intent(); 
     dialingIntent.setAction(OutgoingCallState.ForeGroundCallState.DIALING); 
     ctx.sendBroadcast(dialingIntent); 
      
     Log.d(TAG, ReadLog.CallState.DIALING); 
    } 
     
    //          
    if (line.contains(ReadLog.CallViewState.FORE_GROUND_CALL_STATE) 
      && line.contains(ReadLog.CallState.ALERTING)) { 
     //     
     Intent dialingIntent = new Intent(); 
     dialingIntent.setAction(OutgoingCallState.ForeGroundCallState.ALERTING); 
     ctx.sendBroadcast(dialingIntent); 
      
     Log.d(TAG, ReadLog.CallState.ALERTING); 
    } 
     
    //   ，     
    if (line.contains(ReadLog.CallViewState.FORE_GROUND_CALL_STATE) 
      && line.contains(ReadLog.CallState.ACTIVE)) { 
     //     
     Intent dialingIntent = new Intent(); 
     dialingIntent.setAction(OutgoingCallState.ForeGroundCallState.ACTIVE); 
     ctx.sendBroadcast(dialingIntent); 
      
     Log.d(TAG, ReadLog.CallState.ACTIVE); 
    } 
     
    //    ，    
    if (line.contains(ReadLog.CallViewState.FORE_GROUND_CALL_STATE) 
      && line.contains(ReadLog.CallState.DISCONNECTED)) { 
     //     
     Intent dialingIntent = new Intent(); 
     dialingIntent.setAction(OutgoingCallState.ForeGroundCallState.DISCONNECTED); 
     ctx.sendBroadcast(dialingIntent); 
      
     Log.d(TAG, ReadLog.CallState.DISCONNECTED); 
    } 
     
   } //END while 
    
  } catch (IOException e) { 
   e.printStackTrace(); 
  } //END try-catch 
 } //END run 
} //END class ReadLog 

package com.sdvdxl.phonerecorder; 
 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.util.Log; 
 
import com.sdvdxl.outgoingcall.OutgoingCallState; 
 
public class OutgoingCallReciver extends BroadcastReceiver { 
 static final String TAG = "Recorder"; 
 private MyRecorder recorder; 
  
 public OutgoingCallReciver() { 
  recorder = new MyRecorder(); 
 } 
  
 public OutgoingCallReciver (MyRecorder recorder) { 
  this.recorder = recorder; 
 } 
  
 @Override 
 public void onReceive(Context ctx, Intent intent) { 
  String phoneState = intent.getAction(); 
   
  if (phoneState.equals(Intent.ACTION_NEW_OUTGOING_CALL)) { 
   String phoneNum = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);//     
   recorder.setPhoneNumber(phoneNum); 
   recorder.setIsCommingNumber(false); 
   Log.d(TAG, "       "); 
   Log.d(TAG, "       ：" + phoneNum); 
  } 
   
  if (phoneState.equals(OutgoingCallState.ForeGroundCallState.DIALING)) { 
   Log.d(TAG, "    ..."); 
  } 
   
  if (phoneState.equals(OutgoingCallState.ForeGroundCallState.ALERTING)) { 
   Log.d(TAG, "    ..."); 
  } 
   
  if (phoneState.equals(OutgoingCallState.ForeGroundCallState.ACTIVE)) { 
   if (!recorder.isCommingNumber() && !recorder.isStarted()) { 
    Log.d(TAG, "           "); 
    recorder.start(); 
     
   } 
  } 
   
  if (phoneState.equals(OutgoingCallState.ForeGroundCallState.DISCONNECTED)) { 
   if (!recorder.isCommingNumber() && recorder.isStarted()) { 
    Log.d(TAG, "         "); 
    recorder.stop(); 
   } 
  } 
 } 
 
} 

String phoneState = intent.getAction();  
    
  if (phoneState.equals(Intent.ACTION_NEW_OUTGOING_CALL)) {  
   String phoneNum = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);//      
   recorder.setPhoneNumber(phoneNum);  
   recorder.setIsCommingNumber(false);  
   Log.d(TAG, "       ");  
   Log.d(TAG, "       ：" + phoneNum);  
  } 

package com.sdvdxl.service; 
 
import android.app.Service; 
import android.content.Context; 
import android.content.Intent; 
import android.content.IntentFilter; 
import android.os.IBinder; 
import android.telephony.PhoneStateListener; 
import android.telephony.TelephonyManager; 
import android.util.Log; 
import android.widget.Toast; 
 
import com.sdvdxl.outgoingcall.OutgoingCallState; 
import com.sdvdxl.phonerecorder.MyRecorder; 
import com.sdvdxl.phonerecorder.OutgoingCallReciver; 
import com.sdvdxl.phonerecorder.TelListener; 
 
public class PhoneCallStateService extends Service { 
 private OutgoingCallState outgoingCallState; 
 private OutgoingCallReciver outgoingCallReciver; 
 private MyRecorder recorder; 
  
 @Override 
 public void onCreate() { 
  super.onCreate(); 
   
  //------     onStartCommand ， 2.3.5       service         -------- 
  //      ，                       
  //    ，            
  Log.d("Recorder", "     ..."); 
  recorder = new MyRecorder(); 
  outgoingCallState = new OutgoingCallState(this); 
  outgoingCallReciver = new OutgoingCallReciver(recorder); 
  outgoingCallState.startListen(); 
  Toast.makeText(this, "     ", Toast.LENGTH_LONG).show(); 
   
  //   
  IntentFilter outgoingCallFilter = new IntentFilter(); 
  outgoingCallFilter.addAction(OutgoingCallState.ForeGroundCallState.IDLE); 
  outgoingCallFilter.addAction(OutgoingCallState.ForeGroundCallState.DIALING); 
  outgoingCallFilter.addAction(OutgoingCallState.ForeGroundCallState.ALERTING); 
  outgoingCallFilter.addAction(OutgoingCallState.ForeGroundCallState.ACTIVE); 
  outgoingCallFilter.addAction(OutgoingCallState.ForeGroundCallState.DISCONNECTED); 
   
  outgoingCallFilter.addAction("android.intent.action.PHONE_STATE"); 
  outgoingCallFilter.addAction("android.intent.action.NEW_OUTGOING_CALL"); 
   
  //      
  registerReceiver(outgoingCallReciver, outgoingCallFilter); 
   
  //   
  TelephonyManager telmgr = (TelephonyManager)getSystemService( 
    Context.TELEPHONY_SERVICE); 
  telmgr.listen(new TelListener(recorder), PhoneStateListener.LISTEN_CALL_STATE); 
   
   
 } 
  
 @Override 
 public IBinder onBind(Intent intent) { 
  // TODO Auto-generated method stub 
  return null; 
 } 
 
 @Override 
 public void onDestroy() { 
  super.onDestroy(); 
  unregisterReceiver(outgoingCallReciver); 
  Toast.makeText( 
    this, "         ", Toast.LENGTH_LONG) 
    .show(); 
  Log.d("Recorder", "         "); 
 } 
 
 @Override 
 public int onStartCommand(Intent intent, int flags, int startId) { 
   
  return START_STICKY; 
 } 
 
} 

package com.sdvdxl.phonerecorder; 
 
import java.io.File; 
import java.io.IOException; 
import java.text.SimpleDateFormat; 
import java.util.Date; 
 
import android.media.MediaRecorder; 
import android.os.Environment; 
import android.util.Log; 
 
public class MyRecorder { 
 private String phoneNumber; 
 private MediaRecorder mrecorder; 
 private boolean started = false; //          
 private boolean isCommingNumber = false;//      
 private String TAG = "Recorder"; 
  
  
 public MyRecorder(String phoneNumber) { 
  this.setPhoneNumber(phoneNumber); 
 } 
  
 public MyRecorder() { 
 } 
 
 public void start() { 
  started = true; 
  mrecorder = new MediaRecorder(); 
   
  File recordPath = new File( 
    Environment.getExternalStorageDirectory() 
    , "/My record");  
  if (!recordPath.exists()) { 
   recordPath.mkdirs(); 
   Log.d("recorder", "    "); 
  } 
   
  String callDir = "  "; 
  if (isCommingNumber) { 
   callDir = "  "; 
  } 
  String fileName = callDir + "-" + phoneNumber + "-"  
    + new SimpleDateFormat("yy-MM-dd_HH-mm-ss") 
     .format(new Date(System.currentTimeMillis())) + ".mp3";//   3gp 
  File recordName = new File(recordPath, fileName); 
   
  try { 
   recordName.createNewFile(); 
   Log.d("recorder", "    " + recordName.getName()); 
  } catch (IOException e) { 
   e.printStackTrace(); 
  } 
   
  mrecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT); 
  mrecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT); 
  mrecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT); 
   
  mrecorder.setOutputFile(recordName.getAbsolutePath()); 
   
  try { 
   mrecorder.prepare(); 
  } catch (IllegalStateException e) { 
   e.printStackTrace(); 
  } catch (IOException e) { 
   e.printStackTrace(); 
  } 
  mrecorder.start(); 
  started = true; 
  Log.d(TAG , "    "); 
 } 
  
 public void stop() { 
  try { 
   if (mrecorder!=null) { 
    mrecorder.stop(); 
    mrecorder.release(); 
    mrecorder = null; 
   } 
   started = false; 
  } catch (IllegalStateException e) { 
   e.printStackTrace(); 
  } 
   
   
  Log.d(TAG , "    "); 
 } 
  
 public void pause() { 
   
 } 
 
 public String getPhoneNumber() { 
  return phoneNumber; 
 } 
 
 public void setPhoneNumber(String phoneNumber) { 
  this.phoneNumber = phoneNumber; 
 } 
 
 public boolean isStarted() { 
  return started; 
 } 
 
 public void setStarted(boolean hasStarted) { 
  this.started = hasStarted; 
 } 
 
 public boolean isCommingNumber() { 
  return isCommingNumber; 
 } 
 
 public void setIsCommingNumber(boolean isCommingNumber) { 
  this.isCommingNumber = isCommingNumber; 
 } 
 
}