Removed unnecessary code parts

app/src/main/java/com/example/ueberwachungssystem/Accelerometer.java

 public class Accelerometer extends Detector implements SensorEventListener {
 
     Logger logger;
-
-    private volatile boolean running = false;
     public SensorManager sensorManager;
     private static final int sensorType = Sensor.TYPE_LINEAR_ACCELERATION;
     private Sensor accelerometer;
     private Context context;
-
-    private String threadName = "Accelerometer Thread";
     boolean alarm = false;
     //Preallocate memory for the data of each axis of the acceleration sensor
     float x;
     float y;
     float z;
     float betrag; //Betrag aller drei Achsen sqrt(x*x + y*y + z*z)
-    private TextView textViewWorkerThread;
-    private AppCompatActivity activity;
     private DetectionReport detectionReport;
+    TextView textViewLog;
 
 
     // In constructor pass Activity, Context and TextView from MainActivity in Accelerometer class
-    public Accelerometer(Context context, Logger mainLogger, TextView textViewWorkerThread){
+    public Accelerometer(Context context, Logger mainLogger, TextView textViewLog){
         super(context); //von Detektor
         logger = mainLogger;
         this.context = context;
-        this.textViewWorkerThread = textViewWorkerThread;
-        Logger logger = new Logger(this.getClass().getSimpleName(), textViewWorkerThread, "");
+        this.textViewLog = textViewLog;
+        //Logger logger = new Logger(this.getClass().getSimpleName(), textViewLog, "");
     }
 
     public void getSensor(){
 
     void start() {
         // register the sensor before using //
-        sensorManager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_GAME);
+        sensorManager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_NORMAL);
         logger.log("Accelerometer, start!");
     }
 
         z = event.values[2];
         betrag = (float) sqrt(x*x + y*y + z*z);
         double schwelle = 1.5;
-        //stringBuffer.append("\nBetrag =" + betrag);
-        //logger.log("Betrag" + betrag);
 
         if (!alarm) {
             if (betrag > schwelle) {
                 logger.log("Betragswert immer noch über Schwellwert: " + betrag + "; Alarm bleibt an.");
                 logger.log("Betragswert immer noch über Schwellwert: " + betrag + "; Alarm bleibt an.");
             }
-            logger.clearLog();
+            //logger.clearLog();
             logger.log(stringBuffer.toString());
             stringBuffer.delete(0, stringBuffer.length());
         }

app/src/main/java/com/example/ueberwachungssystem/MainActivity.java

         logger.log("onCreate");
     }
 
-   @Override
+    @Override
     protected void onResume() {
         super.onResume();
     }
     @Override
     protected void onPause() {
         super.onPause();
-        //beschleunigungssensor.stop();
-        //threadDemo.stop();
-
+        beschleunigungssensor.stopDetection();
     }
 
     @Override
         if(v == toggleButton1) {
             if (toggleButton1.isChecked()) {
                 logger.log("ToggleButton is ON");
-                //beschleunigungssensor.start();
                 beschleunigungssensor.startDetection();
                 logger.log("Detection started");
-                //logger.log(stringBuffer.toString());
 
             } else {
                 logger.log("ToggleButton is OFF");
-                //threadDemo.stop();
-                //beschleunigungssensor.stop();
                 beschleunigungssensor.stopDetection();
                 logger.log("Detection stopped");
             }