How To Store Call Records In Sd Card?

I am trying to store incoming and outgoing calls record in my SD Card. but the issue is that i am not able to find that in my SD Card. Following is my Code Can any one help Device

Solution 1:

UPDATED ANSWER

Main2Activity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main2);
}

ListenIncomingCalls.java

publicclassListenIncomingCallsextendsBroadcastReceiver {

    @OverridepublicvoidonReceive(Context context, Intent intent) {

        TelephonyManagertmgr= (TelephonyManager) context
                .getSystemService(Context.TELEPHONY_SERVICE);
        CallListenerphoneListener=newCallListener();
        tmgr.listen(phoneListener, PhoneStateListener.LISTEN_CALL_STATE);

    }
}

classCallListenerextendsPhoneStateListener {

    @OverridepublicvoidonCallStateChanged(int state, String incomingNumber) {
        super.onCallStateChanged(state, incomingNumber);
        System.out.println("Call state changed ");
        if (state == TelephonyManager.CALL_STATE_RINGING) {
            //phone ringing
            System.out.println("This number is " + incomingNumber);
        }
        if(state == TelephonyManager.CALL_STATE_OFFHOOK)
        {
            System.out.println("Call is picked ");
            //start CallRecordService Here to start recording
        }
    }


}

CallRecordService.java

publicclassCallRecordServiceextendsService {

    MRecorder mRecorder;
    longpassedSeconds=0;
    NotificationCompat.Builder mBuilder;
    NotificationManager mNotificationManager;

    publicCallRecordService()
    {
        mRecorder = MRecorder.getInstance();
    }




    @Nullable@Overridepublic IBinder onBind(Intent intent) {
        System.out.println("Service binded");
        returnnull;
    }

    @OverridepublicvoidonCreate() {
        super.onCreate();
        System.out.println("Service called ");

        mRecorder.startRecording();

        IntentstopService=newIntent(this,StopPhoneReciever.class);
        stopService.putExtra("stopRecording",true);
        PendingIntentpendingIntent= PendingIntent.getService(getApplicationContext(),68,stopService,PendingIntent.FLAG_UPDATE_CURRENT);
        mBuilder = (NotificationCompat.Builder) newNotificationCompat.Builder(this)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setOngoing(true)
                .setContentIntent(pendingIntent)
                .setContentTitle("Recording Call...")
                .setContentText("Tap to stop recording.....");
        Notificationnotification= mBuilder.build();
        notification.flags = Notification.FLAG_AUTO_CANCEL;
        NotificationManagermNotificationManager=
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        mNotificationManager.notify(68,notification);
    }

    @OverridepublicvoidonDestroy() {
        mRecorder.stopRecording();
        super.onDestroy();
    }

}

Manifest.xml

<!--incoming calls receiver --><receiverandroid:name=".recorder.ListenIncomingCalls"><intent-filter><actionandroid:name="android.intent.action.PHONE_STATE"/></intent-filter></receiver><serviceandroid:name=".recorder.CallRecordService" />

Few useful links 1)https://www.codeproject.com/Articles/548416/Detecting-incoming-and-outgoing-phone-calls-on-And 2)http://androidexample.com/Incomming_Phone_Call_Broadcast_Receiver__-_Android_Example/index.php?view=article_discription&aid=61 Hope this helps:)