removed Fragment classes from MainActivity

- changed buttons, added fragments

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

-package com.example.ueberwachungssystem.Detection;
-
-import static java.lang.Math.sqrt;
-
-import android.content.Context;
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
-
-
-/**
- * Accelerometer inherits some methods from abstract Detector class (more info there)
- *
- *
- * USE FROM MAIN ACTIVITY:
- *
- * Accelerometer beschleunigungssensor = new Accelerometer(this);
- * onCreate:
- * //Accelerometer Setup
- * beschleunigungssensor = new Accelerometer(this, logger, textViewLog);   //logger and textview only for debugging necessary
- * beschleunigungssensor.getSensor();
- *
- * //Starting Detection:
- * beschleunigungssensor.startDetection();
- * //Stopping Detection: also recommended at onPause to avoid unnecessary battery consumption
- * beschleunigungssensor.stopDetection();
- *
- * */
-
-public class Accelerometer extends Detector implements SensorEventListener {
-
-    public SensorManager sensorManager;
-    private static final int sensorType = Sensor.TYPE_LINEAR_ACCELERATION;
-    private Sensor accelerometer;
-    private Context context;
-    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 DetectionReport detectionReport;
-
-    // In constructor pass Activity, Context and TextView from MainActivity in Accelerometer class
-    public Accelerometer(Context context){
-        super(); //von Detektor
-        this.context = context;
-    }
-
-    public void getSensor(){
-        sensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
-        if(sensorManager.getSensorList(sensorType).size()==0) {
-            accelerometer = null;
-        }
-        else {
-            accelerometer = sensorManager.getSensorList(sensorType).get(0);
-        }
-    }
-
-    @Override
-    public void onSensorChanged(SensorEvent event) {
-        try {
-            checkAlarm(event);
-        } catch (InterruptedException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    public void checkAlarm (SensorEvent event) throws InterruptedException {
-        x = event.values[0];
-        y = event.values[1];
-        z = event.values[2];
-        betrag = (float) sqrt(x*x + y*y + z*z);
-        float threshold = 1.5F;
-
-        if (!alarm) {
-            if (betrag > threshold) {
-                alarm = true;
-                reportViolation("Bewegung", betrag);
-            }
-        } else {
-            if (betrag < threshold) {
-                alarm = false;
-            } else {
-            }
-        }
-    }
-
-    @Override
-    public void onAccuracyChanged(Sensor sensor, int accuracy) {
-    }
-
-    @Override
-    public void startDetection() {
-        // entspricht void start()
-        //getSensor();
-        if (accelerometer != null) {
-            sensorManager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_GAME);
-        }
-    }
-
-    @Override
-    public void stopDetection() {
-        // entspricht void stop()
-        sensorManager.unregisterListener(this, accelerometer);
-    }
-}

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

-package com.example.ueberwachungssystem.Detection;
-
-import android.content.Context;
-import android.media.MediaPlayer;
-import android.media.MediaRecorder;
-import android.widget.Toast;
-
-import java.io.File;
-import java.io.IOException;
-import java.time.LocalDateTime;
-import java.time.format.DateTimeFormatter;
-
-public class AudioRecorder {
-    private final Context context;
-    private MediaRecorder mediaRecorder = null;
-    private boolean isRecording = false;
-    private File outputDir;      // Default: in app files directory
-
-
-    public AudioRecorder (Context context) {
-        this.context = context;
-        this.outputDir = context.getFilesDir();
-    }
-
-    public void startRecording() {
-        // Handle logic
-        if (outputDir == null)
-            return;
-        if (isRecording)
-            return;
-        isRecording = true;
-
-        // Setup Audio Recorder for output Format: 3GP
-        mediaRecorder = new MediaRecorder();
-        mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
-        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
-        mediaRecorder.setOutputFile(outputDir + "/" + generateFileName() + ".3gp");
-        mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
-        try {
-            mediaRecorder.prepare();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        mediaRecorder.start();
-    }
-
-    public void stopRecording() {
-        if (mediaRecorder != null) {
-            mediaRecorder.stop();
-            mediaRecorder.reset();
-            mediaRecorder.release();
-            mediaRecorder = null;
-            isRecording = false;
-            Toast.makeText(context, "audio recording saved", Toast.LENGTH_SHORT).show();
-        }
-    }
-
-    public boolean isRecording(){
-        return isRecording;
-    }
-
-    public void setOutputDir(File outputDir) {
-        this.outputDir = outputDir;
-    }
-
-    private String generateFileName(){
-        // Get the current timestamp
-        LocalDateTime currentTime = LocalDateTime.now();
-        // Define the format for the timestamp
-        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss");
-        // Return the timestamp as a string
-        return currentTime.format(formatter);
-    }
-}

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

-package com.example.ueberwachungssystem.Detection;
-
-import android.util.Log;
-
-import java.util.Calendar;
-
-/** Detection Report Class */
-public class DetectionReport {
-    public String timeStamp;
-    public String detectionType;
-    public float detectedValue;
-    public boolean detectionState;
-
-    public DetectionReport(boolean detectionState, String detectionType, float detectedAmplitude) {
-        this.timeStamp = String.valueOf(Calendar.getInstance().getTime());
-        this.detectionType = detectionType;
-        this.detectedValue = detectedAmplitude;
-        this.detectionState = detectionState;
-
-        //this.detectorID = detectorID;
-    }
-
-
-    /** Get Detection Report in String format */
-    public String toString() {
-        String state = "State: " + "[" + this.detectionState + "]";
-        String time = "Time: " + "[" + this.timeStamp + "]";
-        String type = "Type: " + "[" + this.detectionType + "]";
-        String value = "Value: " + "[" + this.detectedValue + "]";
-
-        return String.join("\t", state, time, type, value);
-    }
-
-    /** Debug Report */
-    public void log(String tag) {
-        Log.d(tag, this.toString());
-    }
-}

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

-package com.example.ueberwachungssystem.Detection;
-
-import android.os.CountDownTimer;
-
-import androidx.annotation.NonNull;
-import androidx.camera.core.ExperimentalGetImage;
-
-
-abstract public class Detector {
-    private OnDetectionListener listener;
-    private boolean isDetecting = false;
-    private boolean extendViolation = false;
-
-    // Countdown parameters
-    private final int COUNTDOWN_TIME = 10000;          // milliseconds
-    private final int COUNTDOWN_POLLING_TIME = 100;   // milliseconds
-
-    /** Constructor - takes context of current activity */
-    public Detector() {}
-
-
-    /** On Detection Listener - runs when violation is reported */
-    public interface OnDetectionListener {
-        void onDetection(@NonNull DetectionReport detectionReport);
-    }
-    public void setOnDetectionListener(@NonNull OnDetectionListener listener) {
-        this.listener = listener;
-    }
-
-    /** Triggers onDetectionListener - call this to trigger violation/alarm */
-    public void reportViolation(String detectionType, float amplitude) {
-        if (listener != null) {
-            if (!isDetecting) {
-                isDetecting = true;
-                DetectionReport detectionReport = new DetectionReport(true, detectionType, amplitude);
-                listener.onDetection(detectionReport);
-                startDetectionTimer(detectionType, amplitude);
-            } else {
-                extendViolation = true;
-            }
-        } else {
-            isDetecting = false;
-            extendViolation = false;
-        }
-    }
-
-    private void startDetectionTimer(String detectionType, float amplitude) {
-        isDetecting = true;
-        new CountDownTimer((long) COUNTDOWN_TIME, COUNTDOWN_POLLING_TIME) {
-            @Override
-            public void onTick(long millisUntilFinished) {
-                if (extendViolation) {
-                    extendViolation = false;
-                    startDetectionTimer(detectionType, amplitude);
-                    this.cancel();
-                }
-            }
-            @Override
-            public void onFinish() {
-                isDetecting = false;
-                DetectionReport detectionReport = new DetectionReport(false, detectionType, amplitude);
-                listener.onDetection(detectionReport);
-            }
-        }.start();
-    }
-
-    public void extendViolation(){
-        this.extendViolation = true;
-    }
-
-    /** Starts Detection (abstract method: needs to be overridden in child class) */
-    public abstract void startDetection();
-
-    /** Stops Detection (abstract method: needs to be overridden in child class) */
-    public abstract void stopDetection();
-}

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

-package com.example.ueberwachungssystem.Detection;
-
-import android.content.Intent;
-import android.os.Binder;
-import android.os.IBinder;
-import android.util.Log;
-import android.widget.ImageView;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.camera.core.ExperimentalGetImage;
-import androidx.lifecycle.LifecycleService;
-
-import com.example.ueberwachungssystem.WifiCommunication;
-
-import java.io.File;
-
-@ExperimentalGetImage
-public class DetectorService extends LifecycleService {
-    public ServiceBinder serviceBinder = new ServiceBinder();
-    private DetectorService.OnDetectionListener listener;
-    private boolean isServiceRunning = false;
-
-    VideoDetector videoDetector = null;
-    AudioRecorder audioRecorder = null;
-
-    /** Communication **/
-
-    WifiCommunication wifiCommunication;
-
-    StringBuffer dataFromWifi;
-
-    @Override
-    public int onStartCommand(Intent intent, int flags, int startId) {
-        if (isServiceRunning)
-            return START_NOT_STICKY;
-
-
-        // Setup Service classes:
-        videoDetector = new VideoDetector(this);
-        videoDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
-            @Override
-            public void onDetection(@NonNull DetectionReport detectionReport) {
-                passToServiceListener(detectionReport);
-            }
-        });
-
-        audioRecorder = new AudioRecorder(this);
-
-
-
-        isServiceRunning = true;
-
-        wifiCommunication = new WifiCommunication (1234);
-        wifiCommunication.setOnConnectionListener(new WifiCommunication.OnConnectionListener() {
-            @Override
-            public void onConnection(StringBuffer data) {
-                dataFromWifi = data;
-            }
-        });
-        return super.onStartCommand(intent, flags, startId);
-    }
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        isServiceRunning = false;
-    }
-
-    /** Service methods */
-    public class ServiceBinder extends Binder {
-        public DetectorService getBoundService() {
-            // Return an instance of the TestService
-            return DetectorService.this;
-        }
-    }
-    @Nullable
-    @Override
-    public IBinder onBind(Intent intent) {
-        super.onBind(intent);
-        return serviceBinder;
-    }
-
-
-    /** Video Detection */
-    public void startVideoDetection() {
-        if(videoDetector != null)
-            videoDetector.startDetection();
-    }
-    public void stopVideoDetection() {
-        if(videoDetector != null)
-            videoDetector.stopDetection();
-    }
-    public boolean isVideoDetectionRunning() {
-        if(videoDetector != null)
-           return videoDetector.isDetecting();
-        return false;
-    }
-    public void debugVideoProcessing(ImageView input, ImageView output) {
-        if(videoDetector != null)
-            videoDetector.debugProcessing(input, output);
-    }
-
-    /** Audio Detection */
-    public void startAudioDetection() {
-
-    }
-    public void stopAudioDetection() {
-
-    }
-
-    /** Motion Detection */
-    public void startMotionDetection() {
-
-    }
-    public void stopMotionDetection() {
-
-    }
-
-    /** Video Recording */
-    public void startVideoRecording() {
-        if(videoDetector != null)
-            videoDetector.startRecording();
-    }
-    public void stopVideoRecording() {
-        if(videoDetector != null)
-            videoDetector.stopRecording();
-    }
-    public boolean isVideoRecordingRunning() {
-        if(videoDetector != null)
-            return videoDetector.isRecording();
-        return false;
-    }
-    public void setVideoRecordingDir(File outputDir) {
-        if (videoDetector != null)
-            videoDetector.setOutputDir(outputDir);
-    }
-
-    /** Audio Recording */
-    public void startAudioRecording() {
-        if(audioRecorder != null)
-            audioRecorder.startRecording();
-    }
-    public void stopAudioRecording() {
-        if(audioRecorder != null)
-            audioRecorder.stopRecording();
-    }
-    public boolean isAudioRecordingRunning() {
-        if(videoDetector != null)
-            return audioRecorder.isRecording();
-        return false;
-    }
-    public void setAudioRecordingDir(File outputDir) {
-        if (audioRecorder != null)
-            audioRecorder.setOutputDir(outputDir);
-    }
-
-
-    /** pass Detection Report to Service Detection Listener and trigger it */
-    public void passToServiceListener(DetectionReport detectionReport) {
-        if (listener != null) {
-            listener.onDetection(detectionReport);
-        }
-    }
-
-
-    /** On Detection Listener - runs when violation is reported */
-    public interface OnDetectionListener {
-        void onDetection(@NonNull DetectionReport detectionReport);
-    }
-    public void setOnDetectionListener(@NonNull DetectorService.OnDetectionListener listener) {
-        this.listener = listener;
-    }
-}

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

-package com.example.ueberwachungssystem.Detection;
-
-import static java.lang.Math.*;
-
-import android.Manifest;
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.content.Context;
-import android.content.pm.PackageManager;
-import android.media.AudioFormat;
-import android.media.AudioRecord;
-import android.media.MediaRecorder;
-import android.os.AsyncTask;
-import android.util.Log;
-
-import androidx.core.app.ActivityCompat;
-import androidx.core.content.ContextCompat;
-
-import com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex;
-import com.example.ueberwachungssystem.Detection.Signalverarbeitung.FFT;
-import com.example.ueberwachungssystem.Detection.DetectionReport;
-import com.example.ueberwachungssystem.Detection.Detector;
-
-public class MicrophoneDetector extends Detector {
-    /**
-     * Constructor - takes context of current activity
-     *
-     * @param context
-     */
-
-    private static final int RECHTEANFORDERUNG_MIKROFON = 1;
-
-    private AufnahmeTask aufnahmeTask;
-    public boolean armed = false;
-    public int Schwellwert_Alarm = 100;
-    private Context context;
-
-    public MicrophoneDetector(Context context) {
-        super();
-        this.context = context;
-    }
-
-    @Override
-    public void startDetection() {
-        aufnahmeTask = new AufnahmeTask();
-        aufnahmeTask.execute();
-    }
-
-    @Override
-    public void stopDetection() {
-        if (aufnahmeTask != null) {
-            aufnahmeTask.cancel(true);
-        }
-    }
-
-    class AufnahmeTask extends AsyncTask<Long, Verarbeitungsergebnis, Void> {
-        private AudioRecord recorder;
-        private final int sampleRateInHz = 44100;
-        private final int channelConfig = AudioFormat.CHANNEL_IN_MONO;
-        private final int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
-        private int minPufferGroesseInBytes;
-        private int pufferGroesseInBytes;
-        private RingPuffer ringPuffer = new RingPuffer(10);
-        private float kalibierWert;
-        private com.example.ueberwachungssystem.Detection.DetectionReport detectionReport;
-
-        @SuppressLint("MissingPermission")
-        AufnahmeTask() {
-            minPufferGroesseInBytes = AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat);
-            pufferGroesseInBytes = minPufferGroesseInBytes * 2;
-            try {
-                recorder = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleRateInHz, channelConfig, audioFormat, pufferGroesseInBytes);
-            } catch (Exception e) {
-                e.printStackTrace();
-            }
-            Log.d("0","Puffergroeße: "+ minPufferGroesseInBytes + " " + pufferGroesseInBytes);
-            Log.d("0","Recorder (SR, CH): "+ recorder.getSampleRate() + " " + recorder.getChannelCount());
-
-            int anzahlBytesProAbtastwert;
-            String s;
-            switch (recorder.getAudioFormat()) {
-                case AudioFormat.ENCODING_PCM_8BIT:
-                    s = "8 Bit PCM ";
-                    anzahlBytesProAbtastwert = 1;
-                    break;
-                case AudioFormat.ENCODING_PCM_16BIT:
-                    s = "16 Bit PCM";
-                    anzahlBytesProAbtastwert = 2;
-                    break;
-                case AudioFormat.ENCODING_PCM_FLOAT:
-                    s = "Float PCM";
-                    anzahlBytesProAbtastwert = 4;
-                    break;
-                default:
-                    throw new IllegalArgumentException();
-            }
-
-            switch (recorder.getChannelConfiguration()) {
-                case AudioFormat.CHANNEL_IN_MONO:
-                    s = "Mono";
-                    break;
-                case AudioFormat.CHANNEL_IN_STEREO:
-                    s = "Stereo";
-                    anzahlBytesProAbtastwert *= 2;
-                    break;
-                case AudioFormat.CHANNEL_INVALID:
-                    s = "ungültig";
-                    break;
-                default:
-                    throw new IllegalArgumentException();
-            }
-
-            Log.d("0","Konfiguration: "+ s);
-
-            int pufferGroesseInAnzahlAbtastwerten = pufferGroesseInBytes / anzahlBytesProAbtastwert;
-
-        }
-
-        @Override
-        protected Void doInBackground(Long... params) {
-            recorder.startRecording();
-            short[] puffer = new short[pufferGroesseInBytes / 2];
-            long lastTime = System.currentTimeMillis();
-            float verarbeitungsrate = 0;
-            final int maxZaehlerZeitMessung = 10;
-            int zaehlerZeitMessung = 0;
-            int anzahlVerarbeitet = 0;
-            GleitenderMittelwert gleitenderMittelwert = new GleitenderMittelwert(0.3f);
-
-            //Kalibrierung
-            try {
-                Thread.sleep(3000); // Time to lay down the phone
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-            int i = 0;
-            for (i = 0; i < 20; i++) {
-                int n = recorder.read(puffer, 0, puffer.length);
-                Verarbeitungsergebnis kalibrierErgebnis = verarbeiten(puffer, n);
-                kalibierWert += kalibrierErgebnis.maxAmp;
-                try {
-                    Thread.sleep(50);
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
-                }
-            }
-            kalibierWert = kalibierWert/i;
-
-//            __Part of FFT__
-//            Complex[] zeitSignal = new Complex[puffer.length];
-//            for (int j = 0; j < puffer.length; j++) {
-//                zeitSignal[j] = new Complex(puffer[j], 0);
-//            }
-//            Complex[] spektrum = FFT.fft(zeitSignal);
-//            double[] spektrum = calculateFFT(puffer);
-//            DataPoint AddPoint;
-//            LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new DataPoint[]{});
-//            for (i = 0; i < spektrum.length; i++) {
-//                AddPoint = new DataPoint(i, spektrum[i]);
-//                series.appendData(AddPoint, true, spektrum.length);
-//            }
-//            graph.addSeries(series);
-
-            for (; ; ) {
-                if (aufnahmeTask.isCancelled()) {
-                    break;
-                } else {
-                    int n = recorder.read(puffer, 0, puffer.length);
-                    Verarbeitungsergebnis ergebnis = verarbeiten(puffer, n);
-                    anzahlVerarbeitet += n;
-
-//                    __Part of FFT__
-//                    spektrum = calculateFFT(puffer);
-//                    LineGraphSeries<DataPoint> newseries = new LineGraphSeries<DataPoint>(new DataPoint[]{});
-//                    for (i = 0; i < spektrum.length; i++) {
-//                        AddPoint = new DataPoint(i, spektrum[i]);
-//                        newseries.appendData(AddPoint, true, spektrum.length);
-//                    }
-
-                    zaehlerZeitMessung++;
-                    if (zaehlerZeitMessung == maxZaehlerZeitMessung) {
-                        long time = System.currentTimeMillis();
-                        long deltaTime = time - lastTime;
-                        verarbeitungsrate = 1000.0f * anzahlVerarbeitet / deltaTime;
-                        verarbeitungsrate = gleitenderMittelwert.mittel(verarbeitungsrate);
-                        zaehlerZeitMessung = 0;
-                        anzahlVerarbeitet = 0;
-                        lastTime = time;
-                    }
-
-
-                    ergebnis.verarbeitungsrate = (int) verarbeitungsrate;
-                    publishProgress(ergebnis);
-
-                    try {
-                        Thread.sleep(10);
-                    } catch (InterruptedException e) {
-                        e.printStackTrace();
-                    }
-                }
-            }
-            recorder.release();
-            return null;
-        }
-
-        private Verarbeitungsergebnis verarbeiten(short[] daten, int n) {
-            String status;
-            short maxAmp = -1;
-            if (n == AudioRecord.ERROR_INVALID_OPERATION) {
-                status = "ERROR_INVALID_OPERATION";
-            } else if (n == AudioRecord.ERROR_BAD_VALUE) {
-                status = "ERROR_BAD_VALUE";
-            } else {
-                status = "OK";
-                short max = 0;
-                for (int i = 0; i < n; i++) {
-                    if (daten[i] > max) {
-                        max = daten[i];
-                    }
-                }
-
-                ringPuffer.hinzufuegen(max);
-                maxAmp = ringPuffer.maximum();
-                if (maxAmp <= Schwellwert_Alarm+kalibierWert) {
-                    armed = true;
-                }
-            }
-
-            return new Verarbeitungsergebnis(status, maxAmp, 0);
-        }
-
-        @Override
-        protected void onProgressUpdate(Verarbeitungsergebnis... progress) {
-            super.onProgressUpdate(progress);
-            float maxAmpPrint = round(20*log10(abs(progress[0].maxAmp/1.0)));
-            float kalibierWertPrint = round(20*log10(abs(kalibierWert)));
-            Log.d("0","VR, Max, Kal:" + progress[0].verarbeitungsrate + ", " + maxAmpPrint
-            + " dB, " + kalibierWertPrint + " dB");
-
-            if (progress[0].maxAmp >= Schwellwert_Alarm+kalibierWert && armed == true) {
-                armed = false;
-                detectionReport = new DetectionReport(true, "Audio", maxAmpPrint);
-                reportViolation("Audio", maxAmpPrint);
-                Log.d("1",detectionReport.toString());
-            }
-        }
-    }
-
-    private double[] calculateFFT(short[] zeitsignal)
-    {
-        byte signal[] = new byte[zeitsignal.length];
-        // loops through all the values of a Short
-        for (int i = 0; i < zeitsignal.length-1; i++) {
-            signal[i] = (byte) (zeitsignal[i]);
-            signal[i+1] = (byte) (zeitsignal[i] >> 8);
-        }
-
-        final int mNumberOfFFTPoints =1024;
-
-        double temp;
-        Complex[] y;
-        Complex[] complexSignal = new Complex[mNumberOfFFTPoints];
-        double[] absSignal = new double[mNumberOfFFTPoints/2];
-
-        for(int i = 0; i < mNumberOfFFTPoints; i++){
-            temp = (double)((signal[2*i] & 0xFF) | (signal[2*i+1] << 8)) / 32768.0F;
-            complexSignal[i] = new Complex(temp,0.0);
-        }
-
-        y = FFT.fft(complexSignal);
-
-        for(int i = 0; i < (mNumberOfFFTPoints/2); i++)
-        {
-            absSignal[i] = y[i].abs();
-        }
-
-        return absSignal;
-
-    }
-
-    class Verarbeitungsergebnis {
-        String status;
-        short maxAmp;
-        int verarbeitungsrate;
-        Verarbeitungsergebnis(String status, short maxAmp, int verarbeitungsrate) {
-            this.status = status;
-            this.maxAmp = maxAmp;
-            this.verarbeitungsrate = verarbeitungsrate;
-        }
-    }
-
-    class RingPuffer {
-        private short[] puffer;
-        private final int laenge;
-        private int anzahlEnthaltenerDaten;
-        private int position;
-
-        public RingPuffer(int n) {
-            laenge = n;
-            anzahlEnthaltenerDaten = 0;
-            position = 0;
-            puffer = new short[laenge];
-        }
-
-        public void hinzufuegen(short wert) {
-            puffer[position] = wert;
-            position++;
-            if (position >= laenge) {
-                position = 0;
-            }
-            if (anzahlEnthaltenerDaten < laenge) {
-                anzahlEnthaltenerDaten++;
-            }
-        }
-
-        public void hinzufuegen(short[] daten) {
-            for (short d : daten) {
-                puffer[position] = d;
-                position++;
-                if (position >= laenge) {
-                    position = 0;
-                }
-            }
-            if (anzahlEnthaltenerDaten < laenge) {
-                anzahlEnthaltenerDaten += daten.length;
-                if (anzahlEnthaltenerDaten >= laenge) {
-                    anzahlEnthaltenerDaten = laenge;
-                }
-            }
-        }
-
-        public short maximum() {
-            short max = 0;
-            for (int i = 0; i < anzahlEnthaltenerDaten; i++) {
-                if (puffer[i] > max) {
-                    max = puffer[i];
-                }
-            }
-            return max;
-        }
-
-        public float mittelwert() {
-            float summe = 0;
-            for (int i = 0; i < anzahlEnthaltenerDaten; i++) {
-                summe += puffer[i];
-            }
-            return summe / anzahlEnthaltenerDaten;
-        }
-    }
-
-    class GleitenderMittelwert {
-        private final float wichtungNeuerWert;
-        private final float wichtungAlterWert;
-        private float mittelwert = 0;
-        private boolean istMittelwertGesetzt = false;
-
-        GleitenderMittelwert(float wichtungNeuerWert) {
-            this.wichtungNeuerWert = wichtungNeuerWert;
-            this.wichtungAlterWert = 1 - this.wichtungNeuerWert;
-        }
-
-        float MittelwertPuffer(short[] puffer) {
-
-            for (int i = 0; i < puffer.length; i++) {
-                mittelwert = Math.abs(puffer[i]);
-            }
-            mittelwert = mittelwert/puffer.length;
-
-            return mittelwert;
-        }
-
-        float mittel(float wert) {
-            if (istMittelwertGesetzt) {
-                mittelwert = wert * wichtungNeuerWert + mittelwert * wichtungAlterWert;
-            } else {
-                mittelwert = wert;
-                istMittelwertGesetzt = true;
-            }
-            return mittelwert;
-        }
-    }
-}

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

-package com.example.ueberwachungssystem.Detection;
-
-import android.graphics.Bitmap;
-import android.media.Image;
-import android.widget.ImageView;
-
-import androidx.annotation.NonNull;
-import androidx.camera.core.ExperimentalGetImage;
-import androidx.camera.core.ImageProxy;
-
-import org.opencv.android.Utils;
-import org.opencv.core.Core;
-import org.opencv.core.CvType;
-import org.opencv.core.Mat;
-import org.opencv.core.MatOfPoint;
-import org.opencv.core.Scalar;
-import org.opencv.core.Size;
-import org.opencv.imgproc.Imgproc;
-
-import java.nio.ByteBuffer;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-
-
-@ExperimentalGetImage
-public class OpenCVHelper {
-
-    /** OpenCV helper methods **/
-    public static Mat addGaussianBlur(Mat inputMat, Size kernelSize){
-        Mat outputMat = new Mat();
-        Imgproc.GaussianBlur(inputMat, outputMat, kernelSize, 0);
-        return outputMat;
-    }
-
-    public static Mat addBlur(Mat inputMat, Size kernelSize){
-        Mat outputMat = new Mat();
-        Imgproc.blur(inputMat, outputMat, kernelSize);
-        return outputMat;
-    }
-
-    public static Mat extractYChannel(@NonNull ImageProxy imgProxy) {
-        Image img = imgProxy.getImage();
-
-        assert img != null;
-        ByteBuffer yBuffer = img.getPlanes()[0].getBuffer();
-        byte[] yData = new byte[yBuffer.remaining()];
-        yBuffer.get(yData);
-
-        Mat yMat = new Mat(img.getHeight(), img.getWidth(), CvType.CV_8UC1);
-        yMat.put(0, 0, yData);
-
-        return yMat;
-    }
-
-    public static Mat thresholdPixels(Mat inputMat, Mat previousImage, int threshold){
-        Mat diffImage = new Mat();
-        Core.absdiff(inputMat, previousImage, diffImage);
-        Mat binaryMat = new Mat();
-        Imgproc.threshold(diffImage, binaryMat, threshold, 255, Imgproc.THRESH_BINARY);
-        return binaryMat;
-    }
-
-
-    public static Mat thresholdContourArea(Mat inputMat, float areaThreshold){
-        List<MatOfPoint> contours = new ArrayList<>();
-        Mat hierarchy = new Mat();
-        Imgproc.findContours(inputMat, contours, hierarchy, Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE);
-
-        Mat outputMat = new Mat(inputMat.size(), inputMat.type(), new Scalar(0));
-        // Iterate over the contours and draw only the larger contours on the outputMat
-        for (MatOfPoint contour : contours) {
-            double contourArea = Imgproc.contourArea(contour);
-            if (contourArea > areaThreshold) {
-                Imgproc.drawContours(outputMat, Collections.singletonList(contour), 0, new Scalar(255), -1);
-            }
-        }
-        // Apply the outputMat as a mask to the dilatedImage
-        Mat maskedImage = new Mat();
-        inputMat.copyTo(maskedImage, outputMat);
-        return outputMat;
-    }
-
-    public static Mat dilateBinaryMat(Mat inputMat, Size kernelSize){
-        Mat dilatedMat = new Mat();
-        Mat kernel = Imgproc.getStructuringElement(Imgproc.MORPH_ELLIPSE, kernelSize);
-        Imgproc.dilate(inputMat, dilatedMat, kernel);
-        return dilatedMat;
-    }
-
-    public static int countNonZeroPixels(Mat inputImage) {
-        if (inputImage != null)
-            return Core.countNonZero(inputImage);
-        else
-            return 0;
-    }
-
-
-    public static void debugMat(Mat mat, ImageView imageView) {
-        if (imageView == null || mat == null)
-            return;
-
-        Bitmap bitmap = Bitmap.createBitmap(mat.cols(), mat.rows(), Bitmap.Config.ARGB_8888);
-        Utils.matToBitmap(mat, bitmap);
-
-        // Display the bitmap in an ImageView
-        imageView.setImageBitmap(bitmap);
-    }
-}

app/src/main/java/com/example/ueberwachungssystem/Detection/Signalverarbeitung/Complex.java

-package com.example.ueberwachungssystem.Detection.Signalverarbeitung;
-
-import java.util.Objects;
-
-public class Complex {
-    private final double re;   // the real part
-    private final double im;   // the imaginary part
-
-    // create a new object with the given real and imaginary parts
-    public Complex(double real, double imag) {
-        re = real;
-        im = imag;
-    }
-
-    // return a string representation of the invoking com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object
-    public String toString() {
-        if (im == 0) return re + "";
-        if (re == 0) return im + "i";
-        if (im < 0) return re + " - " + (-im) + "i";
-        return re + " + " + im + "i";
-    }
-
-    // return abs/modulus/magnitude
-    public double abs() {
-        return Math.hypot(re, im);
-    }
-
-    // return angle/phase/argument, normalized to be between -pi and pi
-    public double phase() {
-        return Math.atan2(im, re);
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is (this + b)
-    public Complex plus(Complex b) {
-        Complex a = this;             // invoking object
-        double real = a.re + b.re;
-        double imag = a.im + b.im;
-        return new Complex(real, imag);
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is (this - b)
-    public Complex minus(Complex b) {
-        Complex a = this;
-        double real = a.re - b.re;
-        double imag = a.im - b.im;
-        return new Complex(real, imag);
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is (this * b)
-    public Complex times(Complex b) {
-        Complex a = this;
-        double real = a.re * b.re - a.im * b.im;
-        double imag = a.re * b.im + a.im * b.re;
-        return new Complex(real, imag);
-    }
-
-    // return a new object whose value is (this * alpha)
-    public Complex scale(double alpha) {
-        return new Complex(alpha * re, alpha * im);
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is the conjugate of this
-    public Complex conjugate() {
-        return new Complex(re, -im);
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is the reciprocal of this
-    public Complex reciprocal() {
-        double scale = re * re + im * im;
-        return new Complex(re / scale, -im / scale);
-    }
-
-    // return the real or imaginary part
-    public double re() {
-        return re;
-    }
-
-    public double im() {
-        return im;
-    }
-
-    // return a / b
-    public Complex divides(Complex b) {
-        Complex a = this;
-        return a.times(b.reciprocal());
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is the complex exponential of this
-    public Complex exp() {
-        return new Complex(Math.exp(re) * Math.cos(im), Math.exp(re) * Math.sin(im));
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is the complex sine of this
-    public Complex sin() {
-        return new Complex(Math.sin(re) * Math.cosh(im), Math.cos(re) * Math.sinh(im));
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is the complex cosine of this
-    public Complex cos() {
-        return new Complex(Math.cos(re) * Math.cosh(im), -Math.sin(re) * Math.sinh(im));
-    }
-
-    // return a new com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex object whose value is the complex tangent of this
-    public Complex tan() {
-        return sin().divides(cos());
-    }
-
-    // a static version of plus
-    public static Complex plus(Complex a, Complex b) {
-        double real = a.re + b.re;
-        double imag = a.im + b.im;
-        Complex sum = new Complex(real, imag);
-        return sum;
-    }
-
-    // See Section 3.3.
-    public boolean equals(Object x) {
-        if (x == null) return false;
-        if (this.getClass() != x.getClass()) return false;
-        Complex that = (Complex) x;
-        return (this.re == that.re) && (this.im == that.im);
-    }
-
-    // See Section 3.3.
-    public int hashCode() {
-        return Objects.hash(re, im);
-    }
-
-    // sample client for testing
-    public static void main(String[] args) {
-        Complex a = new Complex(5.0, 6.0);
-        Complex b = new Complex(-3.0, 4.0);
-
-        System.out.println("a            = " + a);
-        System.out.println("b            = " + b);
-        System.out.println("Re(a)        = " + a.re());
-        System.out.println("Im(a)        = " + a.im());
-        System.out.println("b + a        = " + b.plus(a));
-        System.out.println("a - b        = " + a.minus(b));
-        System.out.println("a * b        = " + a.times(b));
-        System.out.println("b * a        = " + b.times(a));
-        System.out.println("a / b        = " + a.divides(b));
-        System.out.println("(a / b) * b  = " + a.divides(b).times(b));
-        System.out.println("conj(a)      = " + a.conjugate());
-        System.out.println("|a|          = " + a.abs());
-        System.out.println("tan(a)       = " + a.tan());
-    }
-}

app/src/main/java/com/example/ueberwachungssystem/Detection/Signalverarbeitung/FFT.java

-package com.example.ueberwachungssystem.Detection.Signalverarbeitung;
-// Source: https://introcs.cs.princeton.edu/java/97data/FFT.java.html
-
-/******************************************************************************
- *  Compilation:  javac FFT.java
- *  Execution:    java FFT n
- *  Dependencies: com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex.java
- *
- *  Compute the FFT and inverse FFT of a length n complex sequence
- *  using the radix 2 Cooley-Tukey algorithm.
- *  Bare bones implementation that runs in O(n log n) time and O(n)
- *  space. Our goal is to optimize the clarity of the code, rather
- *  than performance.
- *
- *  This implementation uses the primitive root of unity w = e^(-2 pi i / n).
- *  Some resources use w = e^(2 pi i / n).
- *
- *  Reference: https://www.cs.princeton.edu/~wayne/kleinberg-tardos/pdf/05DivideAndConquerII.pdf
- *
- *  Limitations
- *  -----------
- *   -  assumes n is a power of 2
- *
- *   -  not the most memory efficient algorithm (because it uses
- *      an object type for representing complex numbers and because
- *      it re-allocates memory for the subarray, instead of doing
- *      in-place or reusing a single temporary array)
- *
- *  For an in-place radix 2 Cooley-Tukey FFT, see
- *  https://introcs.cs.princeton.edu/java/97data/InplaceFFT.java.html
- *
- ******************************************************************************/
-
-public class FFT {
-
-    // compute the FFT of x[], assuming its length n is a power of 2
-    public static Complex[] fft(Complex[] x) {
-        int n = x.length;
-
-        // base case
-        if (n == 1) return new Complex[]{x[0]};
-
-        // radix 2 Cooley-Tukey FFT
-        if (n % 2 != 0) {
-            throw new IllegalArgumentException("n is not a power of 2");
-        }
-
-        // compute FFT of even terms
-        Complex[] even = new Complex[n / 2];
-        for (int k = 0; k < n / 2; k++) {
-            even[k] = x[2 * k];
-        }
-        Complex[] evenFFT = fft(even);
-
-        // compute FFT of odd terms
-        Complex[] odd = even;  // reuse the array (to avoid n log n space)
-        for (int k = 0; k < n / 2; k++) {
-            odd[k] = x[2 * k + 1];
-        }
-        Complex[] oddFFT = fft(odd);
-
-        // combine
-        Complex[] y = new Complex[n];
-        for (int k = 0; k < n / 2; k++) {
-            double kth = -2 * k * Math.PI / n;
-            Complex wk = new Complex(Math.cos(kth), Math.sin(kth));
-            y[k] = evenFFT[k].plus(wk.times(oddFFT[k]));
-            y[k + n / 2] = evenFFT[k].minus(wk.times(oddFFT[k]));
-        }
-        return y;
-    }
-
-
-    // compute the inverse FFT of x[], assuming its length n is a power of 2
-    public static Complex[] ifft(Complex[] x) {
-        int n = x.length;
-        Complex[] y = new Complex[n];
-
-        // take conjugate
-        for (int i = 0; i < n; i++) {
-            y[i] = x[i].conjugate();
-        }
-
-        // compute forward FFT
-        y = fft(y);
-
-        // take conjugate again
-        for (int i = 0; i < n; i++) {
-            y[i] = y[i].conjugate();
-        }
-
-        // divide by n
-        for (int i = 0; i < n; i++) {
-            y[i] = y[i].scale(1.0 / n);
-        }
-
-        return y;
-
-    }
-
-    // compute the circular convolution of x and y
-    public static Complex[] cconvolve(Complex[] x, Complex[] y) {
-
-        // should probably pad x and y with 0s so that they have same length
-        // and are powers of 2
-        if (x.length != y.length) {
-            throw new IllegalArgumentException("Dimensions don't agree");
-        }
-
-        int n = x.length;
-
-        // compute FFT of each sequence
-        Complex[] a = fft(x);
-        Complex[] b = fft(y);
-
-        // point-wise multiply
-        Complex[] c = new Complex[n];
-        for (int i = 0; i < n; i++) {
-            c[i] = a[i].times(b[i]);
-        }
-
-        // compute inverse FFT
-        return ifft(c);
-    }
-
-
-    // compute the linear convolution of x and y
-    public static Complex[] convolve(Complex[] x, Complex[] y) {
-        Complex ZERO = new Complex(0, 0);
-
-        Complex[] a = new Complex[2 * x.length];
-        for (int i = 0; i < x.length; i++) a[i] = x[i];
-        for (int i = x.length; i < 2 * x.length; i++) a[i] = ZERO;
-
-        Complex[] b = new Complex[2 * y.length];
-        for (int i = 0; i < y.length; i++) b[i] = y[i];
-        for (int i = y.length; i < 2 * y.length; i++) b[i] = ZERO;
-
-        return cconvolve(a, b);
-    }
-
-    // compute the DFT of x[] via brute force (n^2 time)
-    public static Complex[] dft(Complex[] x) {
-        int n = x.length;
-        Complex ZERO = new Complex(0, 0);
-        Complex[] y = new Complex[n];
-        for (int k = 0; k < n; k++) {
-            y[k] = ZERO;
-            for (int j = 0; j < n; j++) {
-                int power = (k * j) % n;
-                double kth = -2 * power * Math.PI / n;
-                Complex wkj = new Complex(Math.cos(kth), Math.sin(kth));
-                y[k] = y[k].plus(x[j].times(wkj));
-            }
-        }
-        return y;
-    }
-
-    // display an array of com.example.ueberwachungssystem.Detection.Signalverarbeitung.Complex numbers to standard output
-    public static void show(Complex[] x, String title) {
-        System.out.println(title);
-        System.out.println("-------------------");
-        for (int i = 0; i < x.length; i++) {
-            System.out.println(x[i]);
-        }
-        System.out.println();
-    }
-
-    /***************************************************************************
-     *  Test client and sample execution
-     *
-     *  % java FFT 4
-     *  x
-     *  -------------------
-     *  -0.03480425839330703
-     *  0.07910192950176387
-     *  0.7233322451735928
-     *  0.1659819820667019
-     *
-     *  y = fft(x)
-     *  -------------------
-     *  0.9336118983487516
-     *  -0.7581365035668999 + 0.08688005256493803i
-     *  0.44344407521182005
-     *  -0.7581365035668999 - 0.08688005256493803i
-     *
-     *  z = ifft(y)
-     *  -------------------
-     *  -0.03480425839330703
-     *  0.07910192950176387 + 2.6599344570851287E-18i
-     *  0.7233322451735928
-     *  0.1659819820667019 - 2.6599344570851287E-18i
-     *
-     *  c = cconvolve(x, x)
-     *  -------------------
-     *  0.5506798633981853
-     *  0.23461407150576394 - 4.033186818023279E-18i
-     *  -0.016542951108772352
-     *  0.10288019294318276 + 4.033186818023279E-18i
-     *
-     *  d = convolve(x, x)
-     *  -------------------
-     *  0.001211336402308083 - 3.122502256758253E-17i
-     *  -0.005506167987577068 - 5.058885073636224E-17i
-     *  -0.044092969479563274 + 2.1934338938072244E-18i
-     *  0.10288019294318276 - 3.6147323062478115E-17i
-     *  0.5494685269958772 + 3.122502256758253E-17i
-     *  0.240120239493341 + 4.655566391833896E-17i
-     *  0.02755001837079092 - 2.1934338938072244E-18i
-     *  4.01805098805014E-17i
-     *
-     ***************************************************************************/
-
-    public static void main(String[] args) {
-        int n = Integer.parseInt(args[0]);
-        Complex[] x = new Complex[n];
-
-        // original data
-        for (int i = 0; i < n; i++) {
-            x[i] = new Complex(i, 0);
-        }
-        show(x, "x");
-
-        // FFT of original data
-        Complex[] y = fft(x);
-        show(y, "y = fft(x)");
-
-        // FFT of original data
-        Complex[] y2 = dft(x);
-        show(y2, "y2 = dft(x)");
-
-        // take inverse FFT
-        Complex[] z = ifft(y);
-        show(z, "z = ifft(y)");
-
-        // circular convolution of x with itself
-        Complex[] c = cconvolve(x, x);
-        show(c, "c = cconvolve(x, x)");
-
-        // linear convolution of x with itself
-        Complex[] d = convolve(x, x);
-        show(d, "d = convolve(x, x)");
-    }
-}
-
-

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

-package com.example.ueberwachungssystem.Detection;
-
-import android.Manifest;
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.pm.PackageManager;
-import android.graphics.ImageFormat;
-import android.media.Image;
-import android.os.CountDownTimer;
-import android.util.Log;
-import android.view.Display;
-import android.view.Surface;
-import android.view.WindowManager;
-import android.widget.ImageView;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.camera.core.CameraSelector;
-import androidx.camera.core.ExperimentalGetImage;
-import androidx.camera.core.ImageAnalysis;
-import androidx.camera.core.ImageProxy;
-import androidx.camera.core.Preview;
-import androidx.camera.core.VideoCapture;
-import androidx.camera.lifecycle.ProcessCameraProvider;
-import androidx.camera.view.PreviewView;
-import androidx.core.app.ActivityCompat;
-import androidx.core.content.ContextCompat;
-import androidx.lifecycle.LifecycleOwner;
-
-import com.google.common.util.concurrent.ListenableFuture;
-
-import org.opencv.android.OpenCVLoader;
-import org.opencv.core.Mat;
-import org.opencv.core.Size;
-
-import java.io.File;
-import java.time.LocalDateTime;
-import java.time.format.DateTimeFormatter;
-import java.util.concurrent.ExecutionException;
-
-
-/**
- * Video Detector inherits some methods from abstract Detector class (more info there)
- * USE FROM MAIN ACTIVITY:
- * VideoDetector vd = new VideoDetector(this);
- * */
-
-
-@ExperimentalGetImage
-public class VideoDetector extends Detector {
-    // Calling Activity
-    private final Context context;
-
-    // Camera Provider
-    private ProcessCameraProvider cameraProvider;
-    private ImageAnalysis imageAnalysis;
-    private VideoCapture videoCapture;
-    //private Preview preview;
-
-    // Logic
-    private boolean isDetecting = false;
-    private boolean isRecording = false;
-    private boolean allowReportViolation = false;
-
-    // Image Processing
-    private Mat previousImage = null;
-
-    // Debugging
-    private ImageView inputImageView = null;
-    private ImageView outputImageView = null;
-
-    // Recorder
-    private File outputDir;      // Default: in app files directory
-
-
-    // Parameters
-    private static final float ALARM_THRESHOLD = 0f;   // Percent of pixels changed
-    private static final float AREA_THRESHOLD = 10f;
-    private static final int DILATE_ITERATIONS = 2;
-    private static final float START_DELAY = 20000;   // milliseconds
-    private static final android.util.Size IMAGE_RES = new android.util.Size(640, 480);
-
-
-
-    /** Constructor */
-    public VideoDetector(Context context) {
-        super();
-        this.context = context;
-        this.imageAnalysis = setupImageAnalysis();
-        this.videoCapture = setupVideoCapture();
-        this.outputDir = context.getFilesDir();
-        //this.preview = new Preview.Builder().build();
-    }
-
-    /** Get States */
-    public boolean isDetecting() {
-        return isDetecting;
-    }
-    public boolean isRecording(){
-        return isRecording;
-    }
-
-
-    /** Starts the Video Detection */
-    @Override
-    public void startDetection() {
-        // Check States
-        if (isDetecting)
-            return;
-        // Configure Image Analysis
-        imageAnalysis = setupImageAnalysis();
-        // Open CV startup check
-        if (!OpenCVLoader.initDebug()) {
-            Log.e("OpenCV", "Unable to load OpenCV!");
-            return;
-        } else
-            Log.d("OpenCV", "OpenCV loaded Successfully!");
-        // Get Process Camera Provider and start
-        final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(context);
-        cameraProviderFuture.addListener(() -> {
-            try {
-                cameraProvider = cameraProviderFuture.get();
-                isDetecting = true;
-                bindCameraProvider();
-            } catch (ExecutionException | InterruptedException e) {}
-        }, ContextCompat.getMainExecutor(context));
-        // Disable Violation Calling for Setup Time
-        startViolationTimer(START_DELAY);
-    }
-
-    /** Starts the Recorder */
-    @SuppressLint("RestrictedApi")
-    public void startRecording() {
-        // Check States
-        if (isRecording){
-            return;
-        }
-
-        videoCapture = setupVideoCapture();
-
-        final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(context);
-        cameraProviderFuture.addListener(() -> {
-            try {
-                cameraProvider = cameraProviderFuture.get();
-                isRecording = true;
-                bindCameraProvider();
-
-                File vidFile = new File(context.getFilesDir() + "/" + generateFileName() + ".mp4");
-                if (ActivityCompat.checkSelfPermission(context, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
-                    return;
-                }
-                videoCapture.startRecording(
-                        new VideoCapture.OutputFileOptions.Builder(vidFile).build(),
-                        context.getMainExecutor(),
-                        new VideoCapture.OnVideoSavedCallback() {
-                            @Override
-                            public void onVideoSaved(@NonNull VideoCapture.OutputFileResults outputFileResults) {
-                                isRecording = false;
-                                Toast.makeText(context, "video recording saved", Toast.LENGTH_SHORT).show();
-                            }
-                            @Override
-                            public void onError(int videoCaptureError, @NonNull String message, @Nullable Throwable cause) {
-                                isRecording = false;
-                                Toast.makeText(context, "video recording failed", Toast.LENGTH_SHORT).show();
-                            }
-                        }
-                );
-            } catch (ExecutionException | InterruptedException ignored) {}
-        }, ContextCompat.getMainExecutor(context));
-    }
-
-    /** Stops the Video Detection */
-    @Override
-    public void stopDetection() {
-        if (!isDetecting || imageAnalysis == null)
-            return;
-        cameraProvider.unbind(imageAnalysis);
-        isDetecting = false;
-        allowReportViolation = false;
-    }
-
-    /** Stops the Recording */
-    @SuppressLint("RestrictedApi")
-    public void stopRecording(){
-        if(!isRecording)
-            return;
-
-        videoCapture.stopRecording();
-        cameraProvider.unbind(videoCapture);
-        isRecording = false;
-    }
-
-    /** Bind Camera Provider */
-    private void bindCameraProvider() {
-        // Specify which Camera to use
-        CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
-        cameraProvider.unbindAll();
-        cameraProvider.bindToLifecycle((LifecycleOwner) context, cameraSelector, imageAnalysis, videoCapture);
-    }
-
-    /** Setup Use Cases */
-    private ImageAnalysis setupImageAnalysis() {
-        // Configure and create Image Analysis
-        ImageAnalysis.Builder builder = new ImageAnalysis.Builder();
-        builder.setTargetResolution(IMAGE_RES);
-        builder.setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST);
-        builder.setOutputImageFormat(ImageAnalysis.OUTPUT_IMAGE_FORMAT_YUV_420_888);
-        builder.setTargetRotation(Surface.ROTATION_90);
-        ImageAnalysis imageAnalysis = builder.build();
-        // Set Analyzer
-        imageAnalysis.setAnalyzer(ContextCompat.getMainExecutor(context), imageProxy -> {
-            if (imageProxy.getFormat() == ImageFormat.YUV_420_888) {
-                Image image = imageProxy.getImage();
-                assert image != null;
-
-                // Violation Handling
-                Mat processed = processImage(imageProxy);
-
-                int n = OpenCVHelper.countNonZeroPixels(processed);
-                int pixelCount = image.getWidth() * image.getHeight();
-                float percentChanged = (float) n / pixelCount;
-
-                // Violation Condition
-                if (percentChanged * 100 > ALARM_THRESHOLD) {
-                    if (allowReportViolation)
-                        reportViolation("Video", percentChanged);
-                }
-            }
-            imageProxy.close();
-        });
-        return imageAnalysis;
-    }
-
-    @SuppressLint("RestrictedApi")
-    private VideoCapture setupVideoCapture() {
-        int rotation = getDisplayRotation();
-        return new VideoCapture.Builder()
-                .setTargetRotation(rotation)
-                .build();
-    }
-
-    /** Process Image to be used for Motion Detection */
-    private Mat processImage(ImageProxy imageProxy){
-        if (imageProxy == null)
-            return null;
-        // Image Transformation
-        Mat imageMat = OpenCVHelper.extractYChannel(imageProxy);
-        // Show Input Image
-        if (inputImageView != null)
-            OpenCVHelper.debugMat(imageMat, inputImageView);
-        // Preprocess Image
-        Mat preprocessed = imageMat;
-        preprocessed = OpenCVHelper.addGaussianBlur(preprocessed, new Size(21, 21));
-        preprocessed = OpenCVHelper.addBlur(preprocessed, new Size(3, 3));
-        // Set Previous Image
-        if (previousImage == null) {
-            previousImage = preprocessed;
-            return null;
-        }
-        // Process Image
-        Mat processed = preprocessed.clone();
-        processed = OpenCVHelper.thresholdPixels(processed, previousImage, 25);
-
-        for(int i = 0; i < DILATE_ITERATIONS; i++)
-            processed = OpenCVHelper.dilateBinaryMat(processed, new Size(3,3));
-
-        processed = OpenCVHelper.thresholdContourArea(processed, AREA_THRESHOLD);
-        // Output
-        previousImage = preprocessed.clone();
-        // Show Output Image
-        if (outputImageView != null)
-            OpenCVHelper.debugMat(processed, outputImageView);
-        return processed;
-    }
-
-
-    /** Debug input and result of processing */
-    public void debugProcessing(@NonNull ImageView inputImageView, @NonNull ImageView outputImageView){
-        this.inputImageView = inputImageView;
-        this.outputImageView = outputImageView;
-    }
-
-    /**
-    private void setPreviewView(@NonNull PreviewView previewView) {
-        // Create Preview
-        if (this.preview != null)
-            this.preview.setSurfaceProvider(previewView.getSurfaceProvider());
-    }
-     */
-
-
-    /** Generate File Name */
-    private String generateFileName(){
-        // Get the current timestamp
-        LocalDateTime currentTime = LocalDateTime.now();
-        // Define the format for the timestamp
-        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss");
-        // Return the timestamp as a string
-        return currentTime.format(formatter);
-    }
-
-
-    /** Get current Display Rotation */
-    private int getDisplayRotation() {
-        WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
-        Display display = windowManager.getDefaultDisplay();
-        return display.getRotation();
-    }
-
-    /** Start delay until Violation Report is allowed */
-    private void startViolationTimer(float setupTime) {
-        new CountDownTimer((long) (START_DELAY), 100) {
-            @Override
-            public void onTick(long millisUntilFinished) {
-            }
-            @Override
-            public void onFinish() {
-                allowReportViolation = true;
-            }
-        }.start();
-    }
-
-    public void setOutputDir(File outputDir) {
-        this.outputDir = outputDir;
-    }
-}

app/src/main/java/com/example/ueberwachungssystem/Fragments/Fragment1.java

 package com.example.ueberwachungssystem.Fragments;
 
+import android.content.Context;
+import android.net.Uri;
 import android.os.Bundle;
+import android.os.Environment;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
+import android.widget.VideoView;
 
 import androidx.fragment.app.Fragment;
 
 import com.example.ueberwachungssystem.R;
 
+import java.io.File;
+
 public class Fragment1 extends Fragment {
     private String text;
     private final static String KEY_TEXT = "KEY_TEXT";
-
     private void log(String nachricht) {
         Log.d(this.getClass().getSimpleName(), nachricht);
     }
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
         log("onCreateView");
         View view = inflater.inflate(R.layout.fragment1, container, false);
-        TextView Sensor = (TextView) view.findViewById(R.id.Sensor);
+        TextView Sensor = (TextView) view.findViewById(R.id.Alarm);
         Sensor.setText(text);
         return view;
     }
     }
     @Override
     public void onCreate(Bundle bundle) {
-        super .onCreate(bundle);
+        super.onCreate(bundle);
         Bundle args = getArguments();
         if (args != null ) {
             text = args.getString(KEY_TEXT);

app/src/main/java/com/example/ueberwachungssystem/Fragments/Fragment2.java

 package com.example.ueberwachungssystem.Fragments;
 
+import android.content.Context;
+import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
 import android.widget.TextView;
 
 import androidx.fragment.app.Fragment;
 
+import com.example.ueberwachungssystem.MeinAdapter;
 import com.example.ueberwachungssystem.R;
 
+import java.io.File;
+import java.util.Arrays;
+import java.util.List;
+
 public class Fragment2 extends Fragment {
     private String text;
+    private Context c;
     private final static String KEY_TEXT = "KEY_TEXT" ;
     private void log(String nachricht) {
         Log.d(this.getClass().getSimpleName(), nachricht);
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
         log( "onCreateView" );
         View view = inflater.inflate(R.layout.fragment2, container, false );
-        TextView Sensor = (TextView) view.findViewById(R.id.Sensor);
-        Sensor.setText(text);
+//        TextView Sensor = (TextView) view.findViewById(R.id.Aufzeichnungen);
+//        Sensor.setText(text);
         return view;
     }
     public static Fragment2 erstellen(String text) {
     public void onCreate(Bundle bundle) {
         super.onCreate(bundle);
         Bundle args = getArguments();
+        c = getContext();
+        ListView listView = new ListView(c);
+        setContentView(R.layout.fragment2);
+        listView.setAdapter(new MeinAdapter(c, getVideoFiles()));
         if (args != null) {
             text = args.getString(KEY_TEXT);
             log("onCreate: text=" + text);
             log("onCreate");
         }
     }
+    public List<File> getVideoFiles(){
+        File directory = c.getFilesDir();
+        File[] files = directory.listFiles();
+        assert files != null;
+        return Arrays.asList(files);
+    }
 }

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

 package com.example.ueberwachungssystem;
 
-import androidx.annotation.NonNull;
 import androidx.camera.core.ExperimentalGetImage;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentTransaction;
 
 import android.os.Bundle;
 import android.util.Log;
-import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.Button;
-import android.widget.EditText;
-import android.widget.ScrollView;
 import android.widget.TextView;
 import android.widget.ToggleButton;
 
-import com.example.ueberwachungssystem.Detection.DetectionReport;
-import com.example.ueberwachungssystem.Detection.Detector;
-import com.example.ueberwachungssystem.Detection.VideoDetector;
 import com.example.ueberwachungssystem.Fragments.Fragment1;
 import com.example.ueberwachungssystem.Fragments.Fragment2;
-import com.example.ueberwachungssystem.Fragments.Fragment3;
-
-import org.w3c.dom.Text;
 
 @ExperimentalGetImage
 public class MainActivity extends AppCompatActivity implements View.OnClickListener {
+    //Fragmente
     private Fragment aktuellesFragment;
     private Fragment1 fragment1;
     private Fragment2 fragment2;
-    private Fragment3 fragment3;
 
+    //Textviews
+    private TextView Auswahl;
+    private TextView AoderA;
+    private String auswahltext = "Wahl des Detektionsmodus";
+    private String auswahlAoderA = "Wahl von Alarmmeldungen oder Auswahl von Alarmaufzeichnungen";
+
+    //Sensoren und Kommunikation
     WifiCommunication communication;
-    private TextView alarm;
-    private String text = "Das ist ein Alarm des Sensors";
     //Buttons
     private ToggleButton toggleKamera;
-    private ToggleButton btnAudio;
-    private ToggleButton btnBewegung;
-    //Detektoren
-    VideoDetector vd = new VideoDetector(this);
+    private ToggleButton toggleAudio;
+    private ToggleButton toggleBewegung;
+
+    //Überprüfungswerte
+    boolean wahr;
     private void log(String nachricht) {
         Log.d(this.getClass().getSimpleName(), nachricht);
     }
         super.onCreate(savedInstanceState);
         setTitle(this.getClass().getSimpleName());
         setContentView(R.layout.activity_main);
-        alarm = findViewById(R.id.Alarm);
-        alarm.setText(text);
+        Auswahl = findViewById(R.id.textAuswahl);
+        Auswahl.setText(auswahltext);
+        AoderA = findViewById(R.id.textAoderA);
+        AoderA.setText(auswahlAoderA);
         toggleKamera = findViewById(R.id.toggleKamera);
         toggleKamera.setOnClickListener(this);
-        vd.setOnDetectionListener(new Detector.OnDetectionListener() {
-            @Override
-            public void onDetection(@NonNull DetectionReport detectionReport) {
-                DetectionReport dr = detectionReport;
-                String drString = dr.toString();
-            }
-        });
-
-        //boolean isRunning = vd.isRunning();
+        toggleAudio = findViewById(R.id.toggleAudio);
+        toggleAudio.setOnClickListener(this);
+        toggleBewegung = findViewById(R.id.toggleBewegung);
+        toggleBewegung.setOnClickListener(this);
 
     }
     @Override
     public void onClick(View v) {
         if (v == toggleKamera) {
             if (toggleKamera.isChecked()) {
-                vd.startDetection();
+                wahr = true;
             } else {
-                vd.stopDetection();
+                wahr = false;
+            }
+        }
+        if (v == toggleAudio) {
+            if (toggleAudio.isChecked()) {
+                wahr = true;
+            } else {
+                wahr = false;
+            }
+        }
+        if (v == toggleBewegung) {
+            if (toggleBewegung.isChecked()) {
+                wahr = true;
+            } else {
+                wahr = false;
             }
         }
     }
-
     @Override
     protected void onPause() {
         super.onPause();
     @Override
     protected void onResume() {
         super.onResume();
-        communication = new WifiCommunication(MainActivity.this, 1234);
+        communication = new WifiCommunication(1234);
     }
 
     public void onClickZeigeFragment1(View view) {
         Button button = (Button) view;
         log(button.getText() + " ausgewählt");
-        zeigeFragment(fragment1.erstellen("Fragment 1 wurde angeklickt"));
-    }
-    public void onClickZeigeFragment2(View view) {
-        Button button = (Button) view;
-        log(button.getText() + " ausgewählt");
-        zeigeFragment(fragment2.erstellen("Fragment 2 wurde angeklickt"));
+        zeigeFragment(fragment1.erstellen("Hier stehen dann die Alarme"));
     }
 
-    public void onClickZeigeFragment3(View view) {
+    public void onClickZeigeFragment2(View view) {
         Button button = (Button) view;
         log(button.getText() + " ausgewählt");
-        zeigeFragment(fragment3.erstellen("Fragment 3 wurde angeklickt"));
+        zeigeFragment(fragment2.erstellen("Hier stehen dann die Videos"));
     }
 
     public void onClickEntferneFragment(View view) {

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

+package com.example.ueberwachungssystem;
+
+import android.content.Context;
+import android.util.Log;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+
+import java.io.File;
+import java.util.List;
+
+public class MeinAdapter extends ArrayAdapter<File> {
+    private Context context;
+    private File[] files;
+    public MeinAdapter(Context context, List<File> listf) {
+        super(context, android.R.layout.simple_list_item_1, listf);
+        this.context = context;
+    }
+
+    @Override
+    public View getView(final int pos, View cv, ViewGroup vg) {
+        View v = super.getView(pos, cv, vg);
+        v.setOnClickListener( new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                    Log.d("DerLog","nicht null");
+            }
+        });
+        return v;
+    }
+}

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

+package com.example.ueberwachungssystem;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import java.io.File;
+import java.util.List;
+
+public class VideoListAdapter extends ArrayAdapter<File> {
+
+    public VideoListAdapter(Context context, List<File> videoList) {
+        super(context, 0, videoList);
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        if (convertView == null) {
+            convertView = LayoutInflater.from(getContext()).inflate(R.layout.list_item_video, parent, false);
+        }
+
+        File videoFile = getItem(position);
+
+        ImageView thumbnailImageView = convertView.findViewById(R.id.imageViewThumbnail);
+        TextView titleTextView = convertView.findViewById(R.id.textViewTitle);
+
+        // Set tag to identify the clicked item
+        convertView.setTag(videoFile.getAbsolutePath());
+
+        return convertView;
+    }
+}

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

 package com.example.ueberwachungssystem;
 import android.annotation.SuppressLint;
-import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 
-import com.example.ueberwachungssystem.Detection.DetectionReport;
-import com.example.ueberwachungssystem.Detection.Detector;
-import com.example.ueberwachungssystem.Detection.DetectorService;
-
 import java.io.IOException;
 import java.net.DatagramPacket;
 import java.net.DatagramSocket;

app/src/main/res/drawable/toggle_btn.xml

+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_checked="false" android:drawable="@color/redbright"  />
+    <item android:state_checked="true" android:drawable="@color/greenbright"  />
+</selector>

app/src/main/res/layout/activity_main.xml

     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@android:color/holo_green_dark"
+    android:background="#010C49"
     android:visibility="visible"
     tools:context="com.example.ueberwachungssystem.MainActivity"
     tools:visibility="visible">
 
+    <TextView
+        android:id="@+id/textAuswahl"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:layout_alignParentLeft="true"
+        android:textSize="20sp"
+        android:textColor="@color/white"/>
+
+    <TextView
+        android:id="@+id/textAoderA"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/toggleAudio"
+        android:layout_alignParentLeft="true"
+        android:layout_marginTop="15dp"
+        android:textSize="20sp"
+        android:textColor="@color/white"/>
+
     <ToggleButton
         android:id="@+id/toggleKamera"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignBottom="@id/toggleAudio"
-        android:layout_marginRight="15dp"
-        android:layout_toStartOf="@+id/toggleAudio"
+        android:layout_marginRight="30dp"
         android:layout_toLeftOf="@id/toggleAudio"
-        android:text="Kamera" />
+        android:textColor="@color/yellow"
+        android:textOn="Kamera an"
+        android:textOff="Kamera aus"
+        android:background="@drawable/toggle_btn"/>
 
     <ToggleButton
         android:id="@+id/toggleAudio"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_alignParentTop="true"
+        android:layout_below="@id/textAuswahl"
         android:layout_centerHorizontal="true"
-        android:text="Audio" />
+        android:layout_marginTop="5dp"
+        android:textColor="@color/yellow"
+        android:textOn="Audio an"
+        android:textOff="Audio aus"
+        android:background="@drawable/toggle_btn"/>
 
     <ToggleButton
         android:id="@+id/toggleBewegung"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignBottom="@id/toggleAudio"
-        android:layout_marginLeft="15dp"
+        android:layout_marginLeft="30dp"
         android:layout_toEndOf="@+id/toggleAudio"
         android:layout_toRightOf="@id/toggleAudio"
-        android:text="Bewegung" />
+        android:textColor="@color/yellow"
+        android:textOn="Bewegung an"
+        android:textOff="Bewegung aus"
+        android:background="@drawable/toggle_btn"/>
 
     <Button
-        android:id="@+id/btnAudio"
+        android:id="@+id/btnAlarme"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_alignBottom="@id/btnKamera"
+        android:layout_alignBottom="@+id/btnAufnahmen"
+        android:layout_toLeftOf="@id/btnAufnahmen"
         android:layout_marginRight="15dp"
-        android:layout_toStartOf="@+id/btnKamera"
+        android:theme="@style/Button.Green"
         android:onClick="onClickZeigeFragment1"
-        android:text="Audio" />
+        android:text="Alarme" />
 
     <Button
-        android:id="@+id/btnKamera"
+        android:id="@+id/btnAufnahmen"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@id/toggleAudio"
+        android:layout_below="@+id/textAoderA"
         android:layout_centerHorizontal="true"
+        android:layout_marginTop="15dp"
+        android:theme="@style/Button.Green"
         android:onClick="onClickZeigeFragment2"
-        android:text="Kamera" />
+        android:text="Aufnahmen" />
 
-    <!--
     <Button
-        android:id="@+id/btnSensorWeg"
+        android:id="@+id/btnAnzeigeVerb"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_centerHorizontal="true"
-        android:layout_below="@+id/btn1"
-        android:text="Entferne Sensordarstellung"
-        android:onClick="onClickEntferneFragment"/>
-    -->
-    <Button
-        android:id="@+id/btnBewegung"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignBottom="@id/btnKamera"
+        android:layout_alignBottom="@+id/btnAufnahmen"
+        android:layout_toRightOf="@id/btnAufnahmen"
         android:layout_marginLeft="15dp"
-        android:layout_toEndOf="@+id/btnKamera"
-        android:layout_toRightOf="@id/btnKamera"
-        android:onClick="onClickZeigeFragment3"
-        android:text="Bewegung" />
-
-    <Button
-        android:id="@+id/btnAufnahme"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@+id/btnKamera"
-        android:layout_toLeftOf="@id/btnKamera"
-        android:layout_marginRight="15dp"
-        android:onClick="onClickEntferneFragment"
-        android:text="Aufnahme" />
-
-    <Button
-        android:id="@+id/btnWiedergabe"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@+id/btnKamera"
-        android:layout_toRightOf="@id/btnKamera"
-        android:layout_marginLeft="15dp"
-        android:onClick="onClickEntferneFragment"
-        android:text="Wiedergabe" />
+        android:text="Anzeige verbergen"
+        android:onClick="onClickEntferneFragment"/>
 
     <FrameLayout
         android:id="@+id/frame"
         android:layout_width="match_parent"
-        android:layout_height="200dp"
-        android:layout_below="@+id/btnAufnahme"
-        android:layout_alignParentStart="true">
+        android:layout_height="match_parent"
+        android:layout_below="@+id/btnAufnahmen"
+        android:layout_marginTop="25dp"
+        android:layout_alignParentStart="true"
+        android:background="@color/white">
     </FrameLayout>
 
+    <!--
     <ScrollView
-        android:id= "@+id/scrollView1"
-        android:layout_width= "wrap_content"
-        android:layout_height= "wrap_content"
-        android:layout_below= "@id/frame">
+        android:id="@+id/scrollView1"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_below="@id/btnAufnahmen"
+        android:layout_marginTop="25dp">
         <LinearLayout
-            android:layout_width= "match_parent"
-            android:layout_height= "match_parent"
-            android:orientation= "vertical" >
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical" >
             <TextView
-                android:id= "@+id/Alarm"
-                android:layout_width= "wrap_content"
-                android:layout_height= "wrap_content" />
+                android:id="@+id/Alarm"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:background="@color/red"/>
         </LinearLayout>
     </ScrollView>
+    -->
 
 </RelativeLayout>

app/src/main/res/layout/fragment1.xml

     android:layout_height="match_parent"
     android:gravity="center_horizontal"
     android:orientation="vertical"
-    android:background="@android:color/holo_green_light">
+    android:background="@color/bluedark">
 
-    <TextView
-        android:id="@+id/Sensor"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:textAppearance="?android:attr/textAppearanceLarge"/>
-
-    <TextView
-        android:id="@+id/Alarm"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/Sensor"
-        android:textAppearance="?android:attr/textAppearanceLarge"/>
+    <ScrollView
+        android:id="@+id/scrollView1"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_marginTop="25dp">
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical" >
+            <TextView
+                android:id="@+id/Alarm"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="@color/yellow"/>
+        </LinearLayout>
+    </ScrollView>
 
 </RelativeLayout>

app/src/main/res/layout/fragment2.xml

     android:orientation="vertical"
     android:background="@android:color/holo_blue_light" >
 
-    <TextView
-        android:id="@+id/Sensor"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:textAppearance="?android:attr/textAppearanceLarge"/>
+    <ScrollView
+        android:id="@+id/scrollView2"
+        android:layout_width="match_parent"
+        android:layout_height="250dp"
+        android:layout_marginTop="25dp">
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical" >
+            <TextView
+                android:id="@+id/Aufzeichnungen"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="@color/yellow"/>
+        </LinearLayout>
+    </ScrollView>
 
-    <TextView
-        android:id="@+id/Alarm"
+    <VideoView
+        android:id="@+id/AusAuf"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@id/Sensor"
+        android:layout_below="@id/scrollView2"
         android:textAppearance="?android:attr/textAppearanceLarge"/>
 
 </LinearLayout>

app/src/main/res/values/colors.xml

     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="red">#5C0000</color>
+    <color name="redbright">#EF3434</color>
+    <color name="greenbright">#469733</color>
+    <color name="bluedark">#053C8E</color>
+    <color name="yellow">#FFEB3B</color>
 </resources>

app/src/main/res/values/themes.xml

         <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
     </style>
+
+    <style name="Button.Green" parent="ThemeOverlay.AppCompat">
+        <item name="colorAccent">#0F3E01</item>
+    </style>
+
 </resources>