三星S7，S8和Gionee A1中未录制传入语音 [英] Incoming voice not getting recorded in Samsung S7, S8 and Gionee A1

问题描述

当有任何来电时，我正在使用此链接记录语音. 链接网址

I am using this link to record voice when there is any incoming call. Link Url

该方法适用于所有设备，除非我在三星 S7 ， S8 和 Gionee A1

this approach works fine with all device except when i run this code on Samsung S7, S8 and Gionee A1

对方的声音没有被记录.

The voice of the other side is not getting recorded.

推荐答案

请使用下面的代码来实现这一点，使其在所有设备上都能正常工作.

Please use this code below to achieve this it works well on all devices.

import java.io.File;
import java.io.IOException;
import java.lang.Exception;
import java.util.Date;
import java.text.SimpleDateFormat;

import android.os.IBinder;
import android.app.Service;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.preference.PreferenceManager;
import android.content.SharedPreferences;
import android.content.Context;
import android.content.Intent;
import android.media.MediaRecorder;
import android.widget.Toast;
import android.util.Log;

//import java.security.KeyPairGenerator;
//import java.security.KeyPair;
//import java.security.Key;

import java.io.InputStream;
import java.io.FileInputStream;
import java.util.Iterator;

public class RecordService 
    extends Service
    implements MediaRecorder.OnInfoListener, MediaRecorder.OnErrorListener
{
    private static final String TAG = "CallRecorder";

    public static final String DEFAULT_STORAGE_LOCATION = "/sdcard/callrecorder";
    private static final int RECORDING_NOTIFICATION_ID = 1;

    private MediaRecorder recorder = null;
    private boolean isRecording = false;
    private File recording = null;;

    /*
    private static void test() throws java.security.NoSuchAlgorithmException
    {
        KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
        kpg.initialize(2048);
        KeyPair kp = kpg.genKeyPair();
        Key publicKey = kp.getPublic();
        Key privateKey = kp.getPrivate();
    }
    */

    private File makeOutputFile (SharedPreferences prefs)
    {
        File dir = new File(DEFAULT_STORAGE_LOCATION);

        // test dir for existence and writeability
        if (!dir.exists()) {
            try {
                dir.mkdirs();
            } catch (Exception e) {
                Log.e("CallRecorder", "RecordService::makeOutputFile unable to create directory " + dir + ": " + e);
                Toast t = Toast.makeText(getApplicationContext(), "CallRecorder was unable to create the directory " + dir + " to store recordings: " + e, Toast.LENGTH_LONG);
                t.show();
                return null;
            }
        } else {
            if (!dir.canWrite()) {
                Log.e(TAG, "RecordService::makeOutputFile does not have write permission for directory: " + dir);
                Toast t = Toast.makeText(getApplicationContext(), "CallRecorder does not have write permission for the directory directory " + dir + " to store recordings", Toast.LENGTH_LONG);
                t.show();
                return null;
            }
        }

        // test size

        // create filename based on call data
        //String prefix = "call";
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss-SS");
        String prefix = sdf.format(new Date());

        // add info to file name about what audio channel we were recording
        int audiosource = Integer.parseInt(prefs.getString(Preferences.PREF_AUDIO_SOURCE, "1"));
        prefix += "-channel" + audiosource + "-";

        // create suffix based on format
        String suffix = "";
        int audioformat = Integer.parseInt(prefs.getString(Preferences.PREF_AUDIO_FORMAT, "1"));
        switch (audioformat) {
        case MediaRecorder.OutputFormat.THREE_GPP:
            suffix = ".3gpp";
            break;
        case MediaRecorder.OutputFormat.MPEG_4:
            suffix = ".mpg";
            break;
        case MediaRecorder.OutputFormat.RAW_AMR:
            suffix = ".amr";
            break;
        }

        try {
            return File.createTempFile(prefix, suffix, dir);
        } catch (IOException e) {
            Log.e("CallRecorder", "RecordService::makeOutputFile unable to create temp file in " + dir + ": " + e);
            Toast t = Toast.makeText(getApplicationContext(), "CallRecorder was unable to create temp file in " + dir + ": " + e, Toast.LENGTH_LONG);
            t.show();
            return null;
        }
    }

    public void onCreate()
    {
        super.onCreate();
        recorder = new MediaRecorder();
        Log.i("CallRecorder", "onCreate created MediaRecorder object");
    }

    public void onStart(Intent intent, int startId) {
        //Log.i("CallRecorder", "RecordService::onStart calling through to onStartCommand");
        //onStartCommand(intent, 0, startId);
        //}

        //public int onStartCommand(Intent intent, int flags, int startId)
        //{
        Log.i("CallRecorder", "RecordService::onStartCommand called while isRecording:" + isRecording);

        if (isRecording) return;

        Context c = getApplicationContext();
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(c);

        Boolean shouldRecord = prefs.getBoolean(Preferences.PREF_RECORD_CALLS, false);
        if (!shouldRecord) {
            Log.i("CallRecord", "RecordService::onStartCommand with PREF_RECORD_CALLS false, not recording");
            //return START_STICKY;
            return;
        }

        int audiosource = Integer.parseInt(prefs.getString(Preferences.PREF_AUDIO_SOURCE, "1"));
        int audioformat = Integer.parseInt(prefs.getString(Preferences.PREF_AUDIO_FORMAT, "1"));

        recording = makeOutputFile(prefs);
        if (recording == null) {
            recorder = null;
            return; //return 0;
        }

        Log.i("CallRecorder", "RecordService will config MediaRecorder with audiosource: " + audiosource + " audioformat: " + audioformat);
        try {
            // These calls will throw exceptions unless you set the 
            // android.permission.RECORD_AUDIO permission for your app
            recorder.reset();
            recorder.setAudioSource(audiosource);
            Log.d("CallRecorder", "set audiosource " + audiosource);
            recorder.setOutputFormat(audioformat);
            Log.d("CallRecorder", "set output " + audioformat);
            recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
            Log.d("CallRecorder", "set encoder default");
            recorder.setOutputFile(recording.getAbsolutePath());
            Log.d("CallRecorder", "set file: " + recording);
            //recorder.setMaxDuration(msDuration); //1000); // 1 seconds
            //recorder.setMaxFileSize(bytesMax); //1024*1024); // 1KB

            recorder.setOnInfoListener(this);
            recorder.setOnErrorListener(this);

            try {
                recorder.prepare();
            } catch (java.io.IOException e) {
                Log.e("CallRecorder", "RecordService::onStart() IOException attempting recorder.prepare()\n");
                Toast t = Toast.makeText(getApplicationContext(), "CallRecorder was unable to start recording: " + e, Toast.LENGTH_LONG);
                t.show();
                recorder = null;
                return; //return 0; //START_STICKY;
            }
            Log.d("CallRecorder", "recorder.prepare() returned");

            recorder.start();
            isRecording = true;
            Log.i("CallRecorder", "recorder.start() returned");
            updateNotification(true);
        } catch (java.lang.Exception e) {
            Toast t = Toast.makeText(getApplicationContext(), "CallRecorder was unable to start recording: " + e, Toast.LENGTH_LONG);
            t.show();

            Log.e("CallRecorder", "RecordService::onStart caught unexpected exception", e);
            recorder = null;
        }

        return; //return 0; //return START_STICKY;
    }

    public void onDestroy()
    {
        super.onDestroy();

        if (null != recorder) {
            Log.i("CallRecorder", "RecordService::onDestroy calling recorder.release()");
            isRecording = false;
            recorder.release();
            Toast t = Toast.makeText(getApplicationContext(), "CallRecorder finished recording call to " + recording, Toast.LENGTH_LONG);
            t.show();

            /*
            // encrypt the recording
            String keyfile = "/sdcard/keyring";
            try {
                //PGPPublicKey k = readPublicKey(new FileInputStream(keyfile));
                test();
            } catch (java.security.NoSuchAlgorithmException e) {
                Log.e("CallRecorder", "RecordService::onDestroy crypto test failed: ", e);
            }
            //encrypt(recording);
            */
        }

        updateNotification(false);
    }


    // methods to handle binding the service

    public IBinder onBind(Intent intent)
    {
        return null;
    }

    public boolean onUnbind(Intent intent)
    {
        return false;
    }

    public void onRebind(Intent intent)
    {
    }


    private void updateNotification(Boolean status)
    {
        Context c = getApplicationContext();
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(c);

        String ns = Context.NOTIFICATION_SERVICE;
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);

        if (status) {
            int icon = R.drawable.rec;
            CharSequence tickerText = "Recording call from channel " + prefs.getString(Preferences.PREF_AUDIO_SOURCE, "1");
            long when = System.currentTimeMillis();

            Notification notification = new Notification(icon, tickerText, when);

            Context context = getApplicationContext();
            CharSequence contentTitle = "CallRecorder Status";
            CharSequence contentText = "Recording call from channel...";
            Intent notificationIntent = new Intent(this, RecordService.class);
            PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

            notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
            mNotificationManager.notify(RECORDING_NOTIFICATION_ID, notification);
        } else {
            mNotificationManager.cancel(RECORDING_NOTIFICATION_ID);
        }
    }

    // MediaRecorder.OnInfoListener
    public void onInfo(MediaRecorder mr, int what, int extra)
    {
        Log.i("CallRecorder", "RecordService got MediaRecorder onInfo callback with what: " + what + " extra: " + extra);
        isRecording = false;
    }

    // MediaRecorder.OnErrorListener
    public void onError(MediaRecorder mr, int what, int extra) 
    {
        Log.e("CallRecorder", "RecordService got MediaRecorder onError callback with what: " + what + " extra: " + extra);
        isRecording = false;
        mr.release();
    }
}

参考-> https://github.com/esnyder/callrecorder

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