Kopie Master Version 1.2 UDP Socket merged with sensor

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

@@ -1,13 +1,8 @@
 package com.example.ueberwachungssystem.Detection;
 
-import android.annotation.SuppressLint;
 import android.util.Log;
 
-import com.example.ueberwachungssystem.WifiCommunication;
-
-import java.text.SimpleDateFormat;
 import java.util.Calendar;
-import java.util.Date;
 
 /** Detection Report Class */
 public class DetectionReport {
@@ -17,11 +12,7 @@ public class DetectionReport {
     public boolean detectionState;
 
     public DetectionReport(boolean detectionState, String detectionType, float detectedAmplitude) {
-        // New Date Format
-        @SuppressLint("SimpleDateFormat") SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
-        Date curDate = new Date(System.currentTimeMillis());
-        this.timeStamp = formatter.format(curDate);
-        //Old Date Format: this.timeStamp = String.valueOf(Calendar.getInstance().getTime());
+        this.timeStamp = String.valueOf(Calendar.getInstance().getTime());
         this.detectionType = detectionType;
         this.detectedValue = detectedAmplitude;
         this.detectionState = detectionState;
@@ -40,16 +31,6 @@ public class DetectionReport {
         return String.join("\t", state, time, type, value);
     }
 
-    public String toMessage() {
-        String state;
-        if(detectionState)
-            state = "An";
-        else
-            state = "Aus";
-
-        return String.join(",", "1", timeStamp, "Gruppe2", WifiCommunication.getLocalIpAddress(), state, detectionType, String.valueOf(detectedValue));
-    }
-
     /** Debug Report */
     public void log(String tag) {
         Log.d(tag, this.toString());

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

@@ -3,13 +3,17 @@ 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
@@ -18,12 +22,14 @@ public class DetectorService extends LifecycleService {
     private DetectorService.OnDetectionListener listener;
     private boolean isServiceRunning = false;
 
-    // Used Objects:
-    public VideoDetector videoDetector = null;
-    public AudioRecorder audioRecorder = null;
-    public Accelerometer motionDetector = null;
-    public MicrophoneDetector audioDetector = null;
+    VideoDetector videoDetector = null;
+    AudioRecorder audioRecorder = null;
 
+    /** Communication **/
+
+    WifiCommunication wifiCommunication;
+
+    String dataFromWifi;
 
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
@@ -31,9 +37,7 @@ public class DetectorService extends LifecycleService {
             return START_NOT_STICKY;
 
 
-
-
-        /** Video Detection/Recorder **/
+        // Setup Service classes:
         videoDetector = new VideoDetector(this);
         videoDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
             @Override
@@ -41,35 +45,22 @@ public class DetectorService extends LifecycleService {
                 passToServiceListener(detectionReport);
             }
         });
-        /** Motion Detection**/
-        motionDetector = new Accelerometer(this);
-        motionDetector.getSensor();
-        motionDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
-            @Override
-            public void onDetection(@NonNull DetectionReport detectionReport) {
-                passToServiceListener(detectionReport);
-            }
-        });
-        /** Audio Detection **/
-        audioDetector = new MicrophoneDetector(this);
-        audioDetector.setOnDetectionListener(new Detector.OnDetectionListener() {
-            @Override
-            public void onDetection(@NonNull DetectionReport detectionReport) {
-                passToServiceListener(detectionReport);
-            }
-        });
-        /** Audio Recorder**/
+
         audioRecorder = new AudioRecorder(this);
 
 
-
-
-
-
         isServiceRunning = true;
+
+        wifiCommunication = new WifiCommunication (1234);
+        wifiCommunication.setOnConnectionListener(new WifiCommunication.OnConnectionListener() {
+            @Override
+            public void onConnection(String data) {
+                dataFromWifi = data;
+            }
+
+        });
         return super.onStartCommand(intent, flags, startId);
     }
-
     @Override
     public void onDestroy() {
         super.onDestroy();
@@ -91,7 +82,81 @@ public class DetectorService extends LifecycleService {
     }
 
 
-    /** Pass Detection Report to Service Detection Listener and trigger it */
+    /** 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);

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

@@ -42,6 +42,8 @@ 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);
  * */
 
 
@@ -173,10 +175,7 @@ public class VideoDetector extends Detector {
     public void stopDetection() {
         if (!isDetecting || imageAnalysis == null)
             return;
-        if (!isRecording)
-            cameraProvider.unbindAll();
-        else
-            cameraProvider.unbind(imageAnalysis);
+        cameraProvider.unbind(imageAnalysis);
         isDetecting = false;
         allowReportViolation = false;
     }
@@ -188,11 +187,7 @@ public class VideoDetector extends Detector {
             return;
 
         videoCapture.stopRecording();
-
-        if (!isDetecting())
-            cameraProvider.unbindAll();
-        else
-            cameraProvider.unbind(videoCapture);
+        cameraProvider.unbind(videoCapture);
         isRecording = false;
     }
 
@@ -224,10 +219,10 @@ public class VideoDetector extends Detector {
 
                 int n = OpenCVHelper.countNonZeroPixels(processed);
                 int pixelCount = image.getWidth() * image.getHeight();
-                float percentChanged = ((float) n / pixelCount) * 100;
+                float percentChanged = (float) n / pixelCount;
 
                 // Violation Condition
-                if (percentChanged> ALARM_THRESHOLD) {
+                if (percentChanged * 100 > ALARM_THRESHOLD) {
                     if (allowReportViolation)
                         reportViolation("Video", percentChanged);
                 }
@@ -315,7 +310,7 @@ public class VideoDetector extends Detector {
 
     /** Start delay until Violation Report is allowed */
     private void startViolationTimer(float setupTime) {
-        new CountDownTimer((long) (setupTime), 100) {
+        new CountDownTimer((long) (START_DELAY), 100) {
             @Override
             public void onTick(long millisUntilFinished) {
             }

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

@@ -1,48 +0,0 @@
-package com.example.ueberwachungssystem.Fragments;
-
-import android.os.Bundle;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.fragment.app.Fragment;
-
-import com.example.ueberwachungssystem.R;
-
-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);
-    }
-
-    @Override
-    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);
-        Sensor.setText(text);
-        return view;
-    }
-    public static Fragment1 erstellen(String text) {
-        Fragment1 fragment = new Fragment1();
-        Bundle b = new Bundle();
-        b.putString(KEY_TEXT, text);
-        fragment.setArguments(b);
-        return fragment;
-    }
-    @Override
-    public void onCreate(Bundle bundle) {
-        super .onCreate(bundle);
-        Bundle args = getArguments();
-        if (args != null ) {
-            text = args.getString(KEY_TEXT);
-            log("onCreate: text=" + text);
-        } else {
-            log("onCreate");
-        }
-    }
-}

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

@@ -1,46 +0,0 @@
-package com.example.ueberwachungssystem.Fragments;
-
-import android.os.Bundle;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.fragment.app.Fragment;
-
-import com.example.ueberwachungssystem.R;
-
-public class Fragment2 extends Fragment {
-    private String text;
-    private final static String KEY_TEXT = "KEY_TEXT" ;
-    private void log(String nachricht) {
-        Log.d(this.getClass().getSimpleName(), nachricht);
-    }
-    @Override
-    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);
-        return view;
-    }
-    public static Fragment2 erstellen(String text) {
-        Fragment2 fragment = new Fragment2();
-        Bundle b = new Bundle();
-        b.putString(KEY_TEXT, text);
-        fragment.setArguments(b);
-        return fragment;
-    }
-    @Override
-    public void onCreate(Bundle bundle) {
-        super.onCreate(bundle);
-        Bundle args = getArguments();
-        if (args != null) {
-            text = args.getString(KEY_TEXT);
-            log("onCreate: text=" + text);
-        } else {
-            log("onCreate");
-        }
-    }
-}

app/src/main/java/com/example/ueberwachungssystem/Fragments/Fragment3.java

@@ -1,46 +0,0 @@
-package com.example.ueberwachungssystem.Fragments;
-
-import android.os.Bundle;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.fragment.app.Fragment;
-
-import com.example.ueberwachungssystem.R;
-
-public class Fragment3 extends Fragment {
-    private String text;
-    private final static String KEY_TEXT = "KEY_TEXT" ;
-    private void log(String nachricht) {
-        Log.d(this.getClass().getSimpleName(), nachricht);
-    }
-    @Override
-    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);
-        return view;
-    }
-    public static Fragment3 erstellen(String text) {
-        Fragment3 fragment = new Fragment3();
-        Bundle b = new Bundle();
-        b.putString(KEY_TEXT, text);
-        fragment.setArguments(b);
-        return fragment;
-    }
-    @Override
-    public void onCreate(Bundle bundle) {
-        super.onCreate(bundle);
-        Bundle args = getArguments();
-        if (args != null) {
-            text = args.getString(KEY_TEXT);
-            log("onCreate: text=" + text);
-        } else {
-            log("onCreate");
-        }
-    }
-}

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

@@ -1,44 +0,0 @@
-package com.example.ueberwachungssystem.Logger;
-
-import android.util.Log;
-import android.widget.TextView;
-
-import java.io.PrintWriter;
-import java.io.StringWriter;
-
-public class Logger {
-    private TextView textView;
-    private StringBuffer sb = new StringBuffer();
-    private String tag;
-
-    public Logger(String tag, TextView textView, String logInitText)  {
-        this.tag = tag;
-        this.textView = textView;
-        sb.append(logInitText);
-    }
-
-    public void log(String s)  {
-        Log.d(tag, s);
-        sb.append(s).append("\n");
-        if (textView != null) {
-            textView.setText(sb.toString());
-        }
-    }
-
-    public void log(Exception e)  {
-        StringWriter sw = new StringWriter();
-        e.printStackTrace(new PrintWriter(sw));
-        log(sw.toString());
-    }
-
-    public void clearLog()  {
-        sb.setLength(0);
-        if (textView != null) {
-            textView.setText("");
-        }
-    }
-
-    public String getLoggedText()  {
-        return sb.toString();
-    }
-}

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

@@ -1,114 +1,105 @@
 package com.example.ueberwachungssystem;
 
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.camera.core.ExperimentalGetImage;
-import androidx.camera.view.PreviewView;
+import static android.content.ContentValues.TAG;
 
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.Intent;
-import android.content.ServiceConnection;
+import android.annotation.SuppressLint;
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
 import android.os.Bundle;
-import android.os.IBinder;
 import android.util.Log;
+import android.view.MenuItem;
+import android.widget.Toast;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.view.View;
-import android.widget.ImageView;
-import android.widget.ToggleButton;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
 
-import com.example.ueberwachungssystem.Detection.Accelerometer;
-import com.example.ueberwachungssystem.Detection.AudioRecorder;
-import com.example.ueberwachungssystem.Detection.DetectionReport;
-import com.example.ueberwachungssystem.Detection.Detector;
-import com.example.ueberwachungssystem.Detection.DetectorService;
-import com.example.ueberwachungssystem.Detection.MicrophoneDetector;
-import com.example.ueberwachungssystem.Detection.VideoDetector;
+import androidx.appcompat.app.AppCompatActivity;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
 
-@ExperimentalGetImage
+@SuppressLint("SetTextI18n")
 public class MainActivity extends AppCompatActivity {
 
-    private DetectorService detectorService = new DetectorService();
-    ImageView inputImageView;
-    ImageView outputImageView;
-    ToggleButton toggleButton;
+    WifiCommunication communication;
+    PermissionRequest permission;
+    boolean communicationRunning = true;
+    TextView textview1;
 
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
+        @Override
+        protected void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            setContentView(R.layout.activity_main);
+            textview1 = findViewById(R.id.textView1);
 
-
-        inputImageView = findViewById(R.id.inputImageView);
-        outputImageView = findViewById(R.id.outputImageView);
-        toggleButton = findViewById(R.id.toggleButton);
-
-
-        PermissionHandler permissionHandler = new PermissionHandler(this);
-        permissionHandler.getPermissions();
-        if (permissionHandler.hasPermissions()) {
-
-
-            Intent serviceIntent = new Intent(this, DetectorService.class);
-            bindService(serviceIntent, serviceConnection, Context.BIND_AUTO_CREATE);
-            startService(serviceIntent);
-
-
-            toggleButton.setOnClickListener(new View.OnClickListener() {
+            Button button1 = findViewById(R.id.buttonSend);
+            button1.setOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View v) {
-                    if (toggleButton.isChecked())
-                    {
-                        if (detectorService != null){
-
-                            detectorService.videoDetector.debugProcessing(inputImageView, outputImageView);
-                            detectorService.videoDetector.startDetection();
-
-                            detectorService.audioDetector.startDetection();
-
-                            detectorService.motionDetector.startDetection();
-
-                            detectorService.audioRecorder.stopRecording();
-
-                            detectorService.videoDetector.startRecording();
-                        }
-                    }
-                    else {
-                        detectorService.videoDetector.stopDetection();
-
-                        detectorService.audioDetector.stopDetection();
-
-                        detectorService.motionDetector.stopDetection();
-
-                        detectorService.audioRecorder.stopRecording();
-
-                        detectorService.videoDetector.stopRecording();
-                    }
+                    communication.sendTrue("Testmessage");
                 }
             });
+        }
+    @Override
+    protected void onResume() {
+        super.onResume();
+        if (communicationRunning){
+            communication = new WifiCommunication(1234);
+            communication.setOnConnectionListener(new WifiCommunication.OnConnectionListener() {
+                @Override
+                public void onConnection(String data) {
+                    //Log.d("Test", data.toString());
+                    runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            textview1.setText(data);
+                        }
+                    });
+                }
+            });
+            communicationRunning = false;
+        }
+        permission = new PermissionRequest(MainActivity.this);
+        permission.rechtePruefen();
+        }
 
-
-
-
-
-
-
+    @Override
+    protected void onPause() {
+        super.onPause();
+        //communication.stopCommunication();
+    }
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.options_menu, menu);
+        return true;
+    }
+    public boolean onOptionsItemSelected(MenuItem item) {
+        Toast.makeText(this, "Selected Item: " + item.getTitle(), Toast.LENGTH_SHORT).show();
+        PopUpClass popUpClass;
+        switch (item.getItemId()) {
+            case R.id.Rechteverwaltung:
+                popUpClass = new PopUpClass(MainActivity.this);
+                popUpClass.showPopupWindow(textview1);
+                popUpClass.RechtePrüfen();
+                return true;
+            case R.id.Sensoren:
+                popUpClass = new PopUpClass(MainActivity.this);
+                popUpClass.showPopupWindow(textview1);
+                popUpClass.Sensoren();
+                return true;
+            case R.id.Impressum:
+                popUpClass = new PopUpClass(MainActivity.this);
+                popUpClass.showPopupWindow(textview1);
+                popUpClass.Impressum();
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
         }
     }
+}
 
-    private ServiceConnection serviceConnection = new ServiceConnection() {
-        @Override
-        public void onServiceConnected(ComponentName name, IBinder service) {
-            DetectorService.ServiceBinder binder = (DetectorService.ServiceBinder) service;
-            detectorService = binder.getBoundService();
-
-            detectorService.setOnDetectionListener(new DetectorService.OnDetectionListener() {
-                @Override
-                public void onDetection(@NonNull DetectionReport detectionReport) {
-                    Log.d("onDetection", detectionReport.toMessage());
-                }
-            });
-        }
-        @Override
-        public void onServiceDisconnected(ComponentName name) {}
-    };
-}

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

@@ -50,8 +50,7 @@ public class PopUpClass {
         Button buttonEdit = popupView.findViewById(R.id.RechteAnfordern);
         buttonEdit.setOnClickListener(new View.OnClickListener() {
             @Override
-            public void onClick(View v) {
-                RechteAnfordern();
+            public void onClick(View v) {RechteAnfordern();
             }
         });
 

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

@@ -51,13 +51,13 @@ public class WifiCommunication {
     }
 
     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);
         }
@@ -78,8 +78,8 @@ public class WifiCommunication {
                     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");
+                        sendWifiData(rxString);
                         //mainActivity.runOnUiThread(() -> mainActivity.tvMessages.setText(rxStringBuffer));
                         previousRxString = rxString;
                     }
@@ -99,16 +99,13 @@ public class WifiCommunication {
                     if(send)
                     {
                         send = false;
-                        SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
-                        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);
                         send_Data = txString.getBytes();
 
                         DatagramPacket txPacket = new DatagramPacket(send_Data, txString.length(), address, port);
 
-                        for(int i = 0; i < 300; i++) {
+                        for(int i = 0; i < 500; i++) {
                             socket.send(txPacket);
                         }
                     }

app/src/main/res/layout-land/activity_main_land.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-</LinearLayout>

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

@@ -38,4 +38,16 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />
 
+    <TextView
+        android:id="@+id/textView1"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="TextView" />
+
+    <Button
+        android:id="@+id/buttonSend"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Button" />
+
 </LinearLayout>

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

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center_horizontal"
-    android:orientation="vertical"
-    android:background="@android:color/holo_green_light">
-
-    <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"/>
-
-</RelativeLayout>

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

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center_horizontal"
-    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"/>
-
-    <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"/>
-
-</LinearLayout>

app/src/main/res/layout/fragment3.xml

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:gravity="center_horizontal"
-    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"/>
-
-    <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"/>
-
-</LinearLayout>

gradle/wrapper/gradle-wrapper.properties

@@ -1,4 +1,4 @@
-#Thu May 11 15:19:24 CEST 2023
+#Thu May 11 15:04:30 CEST 2023
 distributionBase=GRADLE_USER_HOME
 distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
 distributionPath=wrapper/dists