我正在创建一个婴儿监视器（只有音频）应用程序，但每次屏幕被锁定我的应用程序被停止，尝试使用服务，wakelock，audiorecord lib和其他解决方案，但这不起作用。以下代码：
谢谢你的帮助！
主要活动：

public class MainActivity extends AppCompatActivity {
    private Thread thread;

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

        verifyPermissions();
    }

public void buttonStart(View view) {
        thread = new Thread(new Runnable() {
            @Override
            public void run() {
                  Intent serviceIntent = new Intent(this, RecordService.class);
                  serviceIntent.putExtra("inputExtra", "Foreground Service Example in Android");
                  ContextCompat.startForegroundService(this, serviceIntent);             
            }
        });

        thread.start();
    }

    public void buttonStop(View view) {
            Intent serviceIntent = new Intent(this.getApplicationContext(), RecordService.class);
            this.stopService(serviceIntent);
    }
}

recordservice：此服务从buttonstart和buttonstop方法的mainactivity启动和停止。

public class RecordService extends Service {

    private MediaRecorder mediaRecorder;
    private MediaPlayer player;
    private String fileName;

    @Override
    public void onCreate() {
        super.onCreate();

        createNotification();
    }

    private PowerManager.WakeLock wakeLockPartial = null;

public int onStartCommand(Intent intent, int flags, int startId) {

        createNotification();

        String input = intent.getStringExtra("inputExtra");

        Thread thread = new Thread(new Runnable() {
            @Override
            public void run() {
                PowerManager pm = (PowerManager) getApplicationContext().getSystemService(getApplicationContext().POWER_SERVICE);
                wakeLockPartial = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "angelear:mywakelocktag");
                wakeLockPartial.acquire();

                mediaRecorder = new MediaRecorder();
                resetRecorder();
                mediaRecorder.start();
            }
        });

        thread.start();

        return START_STICKY; //tried use START_NOT_STICKY
    }
}

@Override
    public void onDestroy() {
        super.onDestroy();
        if (mediaRecorder != null) {
            mediaRecorder.stop();
            mediaRecorder.release();
            mediaRecorder = null;
            wakeLockPartial.release();
        }
    }

private void createNotification() {
        if (Build.VERSION.SDK_INT >= 26) {
            String CHANNEL_ID = "my_channel_01";
            NotificationChannel channel = new NotificationChannel(CHANNEL_ID,
                    "Channel human readable title",
                    NotificationManager.IMPORTANCE_DEFAULT);

            ((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);

            Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
                    .setContentTitle("")
                    .setContentText("").build();

            startForeground(1, notification);
        }
    }

    private void resetRecorder() {
        long currentTimestamp = System.currentTimeMillis();
        fileName = this.getExternalFilesDir(null).getAbsolutePath() + "/" + currentTimestamp + ".3gp";

        mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
        mediaRecorder.setAudioEncodingBitRate(16);
        mediaRecorder.setAudioSamplingRate(44100);
        mediaRecorder.setOutputFile(fileName);

        try {
            mediaRecorder.prepare();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}