Version 1. working

app/src/main/java/com/example/ueberwachungssystem/Detection/DetectorService.java

 import android.content.Intent;
 import android.os.Binder;
 import android.os.IBinder;
+import android.util.Log;
 import android.widget.ImageView;
 
 import androidx.annotation.NonNull;
 import androidx.camera.core.ExperimentalGetImage;
 import androidx.lifecycle.LifecycleService;
 
+import com.example.ueberwachungssystem.WifiCommunication;
+
 import java.io.File;
 
 @ExperimentalGetImage
     public Accelerometer motionDetector = null;
     public MicrophoneDetector audioDetector = null;
 
+    public WifiCommunication wifiCommunication;
+
+    String wifiData;
+    StringBuffer stringBufferWifi = new StringBuffer();
+
 
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
         if (isServiceRunning)
             return START_NOT_STICKY;
 
+        /** Wifi Instanz **/
+        wifiCommunication = new WifiCommunication(1234);
+        wifiCommunication.sendTrue("TEst");
+
+        wifiCommunication.setOnConnectionListener(new WifiCommunication.OnConnectionListener() {
+            @Override
+            public void onConnection(String data) {
+                Log.d("Listener", data);
+                wifiData = data;
+                stringToStringbuffer(data);
+                Log.d("buffer",stringBufferWifi.toString());
+                passToServiceListener(stringBufferWifi);
+
+            }
+        });
+
+
 
 
 
         videoDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
             @Override
             public void onDetection(@NonNull DetectionReport detectionReport) {
-                passToServiceListener(detectionReport);
+                //passToServiceListener(detectionReport);
+                wifiCommunication.sendTrue(detectionReport.toMessage());
             }
         });
         /** Motion Detection**/
         motionDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
             @Override
             public void onDetection(@NonNull DetectionReport detectionReport) {
-                passToServiceListener(detectionReport);
+                //passToServiceListener(detectionReport);
+                wifiCommunication.sendTrue(detectionReport.toMessage());
             }
         });
         /** Audio Detection **/
         audioDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
             @Override
             public void onDetection(@NonNull DetectionReport detectionReport) {
-                passToServiceListener(detectionReport);
+                //passToServiceListener(detectionReport);
+                wifiCommunication.sendTrue(detectionReport.toMessage());
             }
         });
         /** Audio Recorder**/
 
 
     /** Pass Detection Report to Service Detection Listener and trigger it */
-    public void passToServiceListener(DetectionReport detectionReport) {
+    public void passToServiceListener(StringBuffer stringBuffer) {
         if (listener != null) {
-            listener.onDetection(detectionReport);
+            listener.onDetection(stringBuffer);
         }
     }
 
 
     /** On Detection Listener - runs when violation is reported */
     public interface OnDetectionListener {
-        void onDetection(@NonNull DetectionReport detectionReport);
+        void onDetection(@NonNull StringBuffer stringBuffer);
     }
     public void setOnDetectionListener(@NonNull DetectorService.OnDetectionListener listener) {
         this.listener = listener;
     }
+
+    public void stringToStringbuffer(String string){
+        if(string != null) {
+            stringBufferWifi.append(string).append("\n");
+        }
+    }
 }

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

 
             detectorService.setOnDetectionListener(new DetectorService.OnDetectionListener() {
                 @Override
-                public void onDetection(@NonNull DetectionReport detectionReport) {
-                    Log.d("onDetection", detectionReport.toMessage());
+                public void onDetection(@NonNull StringBuffer stringBuffer) {
+                    Log.d("onDetection", stringBuffer.toString());
                 }
             });
         }

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

 package com.example.ueberwachungssystem;
 import android.annotation.SuppressLint;
+import android.util.Log;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
     }
 
     public interface OnConnectionListener {
-        void onConnection(StringBuffer data);
+        void onConnection(String data);
     }
     public void setOnConnectionListener(@NonNull OnConnectionListener listener) {
         this.listener = listener;
     }
 
-    public void sendWifiData(StringBuffer wifiMessage) {
+    public void sendWifiData(String wifiMessage) {
         if (listener != null) {
             listener.onConnection(wifiMessage);
+
         }
     }
 
                     rxString = new String(receiveData, 0, rxPacket.getLength());
                     String[] splitrxString = rxString.split(",");
                     if(!previousRxString.equals(rxString) && splitrxString[0].equals("1") && splitrxString.length==7) {
-                        rxStringBuffer.append(rxString).append("\n");
-                        sendWifiData(rxStringBuffer);
+                        //rxStringBuffer.append(rxString).append("\n");
+                        Log.d("empfangen", rxString);
+                        sendWifiData(rxString);
                         //mainActivity.runOnUiThread(() -> mainActivity.tvMessages.setText(rxStringBuffer));
                         previousRxString = rxString;
                     }
                         Date curDate = new Date(System.currentTimeMillis());
                         String str = formatter.format(curDate);
                         byte[] send_Data = new byte[512];
-                        String txString = ("1," +str+ ",Gruppe2," + getLocalIpAddress() + ",An,Video," +messageToSend);
+                        String txString = (messageToSend); //"1," +str+ ",Gruppe2," + getLocalIpAddress() + ",An,Video,"
+                        Log.d("send", txString);
                         send_Data = txString.getBytes();
 
                         DatagramPacket txPacket = new DatagramPacket(send_Data, txString.length(), address, port);