TextureView anstatt SurfaceView

Fehlerbehebung in Zeile 61: if (requestCode == REQUEST_PERMISSION) {
davor: if (requestCode == REQUEST_PERMISSIONS) {

app/build.gradle

@@ -35,10 +35,4 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
-
-    def camerax_version = "1.2.3"
-    implementation "androidx.camera:camera-camera2:${camerax_version}"
-    implementation "androidx.camera:camera-lifecycle:${camerax_version}"
-    implementation "androidx.camera:camera-view:${camerax_version}"
-
 }

app/src/main/AndroidManifest.xml

@@ -3,9 +3,11 @@
     package="com.example.greenwatch">
 
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.CAMERA"/>
-
-    <uses-feature android:name="android.hardware.camera"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
+    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.CAMERA" />
 
     <application
         android:allowBackup="true"
@@ -14,21 +16,6 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.GreenWatch">
-        <activity
-            android:name=".VideodetectionAndAccelerometerActivity"
-            android:exported="false" />
-        <activity
-            android:name=".AudiodetectionAndAccelerometerActivity"
-            android:exported="false" />
-        <activity
-            android:name=".VideodetectionActivity"
-            android:exported="false" />
-        <activity
-            android:name=".AudiodetectionActivity"
-            android:exported="false" />
-        <activity
-            android:name=".AccelerometerActivity"
-            android:exported="false" />
         <activity
             android:name=".MainActivity"
             android:exported="true">

app/src/main/java/com/example/greenwatch/AccelerometerActivity.java

@@ -1,158 +0,0 @@
-package com.example.greenwatch;
-
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.example.greenwatch.adapters.AlarmHistoryListAdapter;
-import com.example.greenwatch.adapters.DeviceListAdapter;
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.viewmodels.AccelerometerViewModel;
-
-import java.util.List;
-
-public class AccelerometerActivity extends AppCompatActivity implements SensorEventListener {
-
-    private SensorManager accelerometerManager;
-    private Sensor accelerometerSensor;
-    private TextView accelerometerStatusMessage;
-    private TextView accelerometerDataTV;
-    private TextView accelerometerWarningTV;
-    private Button backToMainActivityButton;
-    private AccelerometerViewModel mAccelerometerViewModel;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_accelerometer);
-
-        accelerometerStatusMessage = (TextView) findViewById(R.id.tvAccelerometerStatusmessage);
-        accelerometerDataTV = (TextView) findViewById(R.id.tvAccelerometerData);
-        accelerometerWarningTV = (TextView) findViewById(R.id.tvAccelerometerWarning);
-        backToMainActivityButton = (Button) findViewById(R.id.accelerometerBackToMainActivity);
-
-        RecyclerView recyclerView = findViewById(R.id.deviceListRecyclerView);
-        recyclerView.setLayoutManager(new LinearLayoutManager(this));
-        recyclerView.setHasFixedSize(true);
-
-        final DeviceListAdapter deviceListAdapter = new DeviceListAdapter();
-        recyclerView.setAdapter(deviceListAdapter);
-
-        RecyclerView alarmHistoryListRecyclerView = findViewById(R.id.alarmHistoryListRecyclerView);
-        alarmHistoryListRecyclerView.setLayoutManager(new LinearLayoutManager(this));
-        alarmHistoryListRecyclerView.setHasFixedSize(true);
-
-        final AlarmHistoryListAdapter alarmHistoryListAdapter  = new AlarmHistoryListAdapter();
-        alarmHistoryListRecyclerView.setAdapter(alarmHistoryListAdapter);
-
-        backToMainActivityButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                finish();
-            }
-        });
-
-        mAccelerometerViewModel = new ViewModelProvider(this).get(AccelerometerViewModel.class);
-        mAccelerometerViewModel.init();
-        mAccelerometerViewModel.getConnectedDeviceList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                deviceListAdapter.setDevices(devices);
-            }
-        });
-
-        mAccelerometerViewModel.getAlarmHistoryList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                alarmHistoryListAdapter.setAlarmHistoryList(devices);
-            }
-        });
-
-        mAccelerometerViewModel.getStartAlarmRecording().observe(this, new Observer<Boolean>() {
-            @Override
-            public void onChanged(Boolean aBoolean) {
-                if (aBoolean) {
-                    Toast.makeText(AccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-                else {
-                    Toast.makeText(AccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-            }
-        });
-
-        mAccelerometerViewModel.getMovementDetectedValue().observe(this, new Observer<Boolean>() {
-            @Override
-            public void onChanged(Boolean aBoolean) {
-                if (aBoolean) {
-                    mAccelerometerViewModel.updateDevice(mAccelerometerViewModel.getLocalDeviceUUID(), mAccelerometerViewModel.getSystemTimeStamp(), true, "Accelerometer", 10);
-                }
-                else {
-                    mAccelerometerViewModel.updateDevice(mAccelerometerViewModel.getLocalDeviceUUID(), mAccelerometerViewModel.getSystemTimeStamp(), false, "Accelerometer", 0);
-                }
-
-            }
-        });
-
-        accelerometerManager = (SensorManager) getSystemService(SENSOR_SERVICE);
-        if (accelerometerManager.getSensorList(Sensor.TYPE_GYROSCOPE).size() == 0) {
-            accelerometerSensor = null;
-            Toast.makeText(AccelerometerActivity.this, "No accelerometer sensor available", Toast.LENGTH_LONG).show();
-        }
-        else {
-            accelerometerSensor = accelerometerManager.getSensorList(Sensor.TYPE_GYROSCOPE).get(0);
-        }
-    }
-
-    @Override
-    public void onSensorChanged(SensorEvent event) {
-        StringBuilder sb = new StringBuilder();
-        sb.append("x=")
-                .append(event.values[0])
-                .append("\ny=")
-                .append(event.values[1])
-                .append("\nz=")
-                .append(event.values[2]);
-        accelerometerDataTV.setText(sb.toString());
-        mAccelerometerViewModel.addValueToGesamtBE(event.values[0] + event.values[1] + event.values[2]);
-        mAccelerometerViewModel.meanValueCalculation();
-        mAccelerometerViewModel.calibrateAccelerometerSensor();
-        mAccelerometerViewModel.checkAlarmCondition();
-
-    }
-
-    @Override
-    public void onAccuracyChanged(Sensor sensor, int accuracy) {
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-        if (accelerometerSensor != null) {
-            if (accelerometerManager.registerListener(this, accelerometerSensor, SensorManager.SENSOR_DELAY_GAME)) {
-                Toast.makeText(AccelerometerActivity.this, "We registered to the sensor", Toast.LENGTH_LONG).show();
-            } else {
-                Toast.makeText(AccelerometerActivity.this, "Registration did not work", Toast.LENGTH_LONG).show();
-            }
-        }
-    }
-
-    @Override
-    protected void onPause() {
-        super.onPause();
-        if (accelerometerSensor != null) {
-            accelerometerManager.unregisterListener(this, accelerometerSensor);
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/AlarmRecorder.java

@@ -0,0 +1,225 @@
+package com.example.greenwatch;
+
+import android.graphics.SurfaceTexture;
+import android.media.MediaCodec;
+import android.media.MediaExtractor;
+import android.media.MediaFormat;
+import android.media.MediaMuxer;
+import android.media.MediaRecorder;
+import android.os.Environment;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+public class AlarmRecorder {
+    private String videoPath;
+    private String audioPath;
+    private MediaFormat videoFormat;
+    private MediaFormat audioFormat;
+    private MediaExtractor videoExtractor;
+    private MediaExtractor audioExtractor;
+    private Runnable audioRecorderRunnable;
+    private Runnable videoRecorderRunnable;
+    private MediaRecorder videoRecorder;
+    private MediaRecorder audioRecorder;
+    //private SurfaceHolder previewHolder;
+    private Surface surface;
+    private Thread videoThread; // Video-Thread als Instanzvariable
+    private Thread audioThread; // Audio-Thread als Instanzvariable
+
+    public AlarmRecorder(SurfaceTexture surfaceTexture) {
+        audioRecorder = new MediaRecorder();
+        videoRecorder = new MediaRecorder();
+        videoExtractor = new MediaExtractor();
+        audioExtractor = new MediaExtractor();
+        this.surface = new Surface(surfaceTexture);
+    }
+
+    public void startRecording() {
+        createStoragePaths(); //Speicherort und -namen für Audio- und Video-Datei
+
+        audioRecorderRunnable = new AudioRecorder(audioRecorder, audioPath);
+        videoRecorderRunnable = new VideoRecorder(videoRecorder, videoPath, surface);
+        audioThread = new Thread(audioRecorderRunnable);
+        videoThread = new Thread(videoRecorderRunnable);
+
+        //Threads starten
+        videoThread.start();
+        audioThread.start();
+    }
+
+    public void stopRecording() {
+        try {
+            stopVideoRecording();
+            stopAudioRecording();
+
+            waitTillThreadsStopped();
+            File videoFile = new File(videoPath); //Speichere das aufgenommene Video
+            File audioFile = new File(audioPath); //Speichere die aufgenommene Audio
+
+            if (videoFile.exists() && audioFile.exists()) {
+                //Wenn Video- und Audioaufzeichnung gestoppt und abgespeichert sind, beginne mit dem Mergeprozess der beiden
+                mergeVideoWithAudio();
+            }
+        } catch (RuntimeException stopException) {
+            stopException.printStackTrace();
+        }
+    }
+
+    private void createStoragePaths(){
+        //Pfade zum Zwischenspeichern der aufgenommenen Audio und Video-Datei
+        String externalStorageDirectory = Environment.getExternalStorageDirectory().getAbsolutePath();
+        String dcimDirectory = externalStorageDirectory + "/DCIM";
+        videoPath = dcimDirectory + "/video.mp4";
+        audioPath = dcimDirectory + "/audio.mp3";
+    }
+
+    private void stopVideoRecording(){
+        if (videoRecorder != null) {
+            videoRecorder.stop();
+            videoRecorder.release();
+            videoRecorder = null;
+        }
+    }
+
+    private void stopAudioRecording(){
+        if (audioRecorder != null) {
+            audioRecorder.stop();
+            audioRecorder.release();
+            audioRecorder = null;
+        }
+    }
+
+    private void waitTillThreadsStopped(){
+        try {
+            videoThread.join();
+            audioThread.join();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void mergeVideoWithAudio() {
+        try {
+            setVideoExtractorDataSource(); //extrahieren der Video Datei, die zuvor zwischengespeichert wurde
+            setAudioExtractorDataSource(); //extrahieren der Audio Datei, die zuvor zwischengespeichert wurde
+
+            //Speicherort der später zusammengeführten Datei
+            String outputFilePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES).getAbsolutePath() + "/merged_video.mp4";
+            //MediaMuxer zum Zusammenführen einer Audio- und einer Videodatei
+            MediaMuxer muxer = new MediaMuxer(outputFilePath, MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);
+            int videoTrack = muxer.addTrack(videoFormat);
+            int audioTrack = muxer.addTrack(audioFormat);
+            muxer.start();
+
+            ByteBuffer buffer = ByteBuffer.allocate(1024 * 1024);
+            MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo();
+
+            videoExtraction(buffer, videoTrack, bufferInfo, muxer);
+            audioExtraction(buffer, audioTrack, bufferInfo, muxer);
+
+            muxer.stop();
+            muxer.release();
+
+            // Löschen der separaten Video- und Audio-Dateien
+            deleteVideoFile();
+            deleteAudioFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void setVideoExtractorDataSource() {
+        try {
+            videoExtractor.setDataSource(videoPath);
+            int videoTrackIndex = getTrackIndex(videoExtractor, "video/");
+            if (videoTrackIndex < 0) {
+                // Video-Track nicht gefunden
+                return;
+            }
+            videoExtractor.selectTrack(videoTrackIndex);
+            videoFormat = videoExtractor.getTrackFormat(videoTrackIndex);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private void setAudioExtractorDataSource() {
+        try {
+            audioExtractor.setDataSource(audioPath);
+            int audioTrackIndex = getTrackIndex(audioExtractor, "audio/");
+            if (audioTrackIndex < 0) {
+                // Audio-Track nicht gefunden
+                return;
+            }
+            audioExtractor.selectTrack(audioTrackIndex);
+            audioFormat = audioExtractor.getTrackFormat(audioTrackIndex);
+
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private int getTrackIndex(MediaExtractor extractor, String mimeType) {
+        int trackCount = extractor.getTrackCount();
+        for (int i = 0; i < trackCount; i++) {
+            MediaFormat format = extractor.getTrackFormat(i);
+            String trackMimeType = format.getString(MediaFormat.KEY_MIME);
+            if (trackMimeType.startsWith(mimeType)) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    private void videoExtraction(ByteBuffer buffer, int videoTrack, MediaCodec.BufferInfo bufferInfo, MediaMuxer muxer) {
+        videoExtractor.seekTo(0, MediaExtractor.SEEK_TO_CLOSEST_SYNC);
+        while (true) {
+            int sampleSize = videoExtractor.readSampleData(buffer, 0);
+            if (sampleSize < 0) {
+                break;
+            }
+            long presentationTimeUs = videoExtractor.getSampleTime();
+            bufferInfo.offset = 0;
+            bufferInfo.size = sampleSize;
+            bufferInfo.flags = MediaCodec.BUFFER_FLAG_KEY_FRAME;
+            bufferInfo.presentationTimeUs = presentationTimeUs;
+            muxer.writeSampleData(videoTrack, buffer, bufferInfo);
+            videoExtractor.advance();
+        }
+    }
+
+    private void audioExtraction(ByteBuffer buffer, int audioTrack, MediaCodec.BufferInfo bufferInfo, MediaMuxer muxer) {
+        audioExtractor.seekTo(0, MediaExtractor.SEEK_TO_CLOSEST_SYNC);
+        while (true) {
+            int sampleSize = audioExtractor.readSampleData(buffer, 0);
+            if (sampleSize < 0) {
+                break;
+            }
+            long presentationTimeUs = audioExtractor.getSampleTime();
+            bufferInfo.offset = 0;
+            bufferInfo.size = sampleSize;
+            bufferInfo.flags = 0; // or MediaCodec.BUFFER_FLAG_KEY_FRAME
+            bufferInfo.presentationTimeUs = presentationTimeUs;
+            muxer.writeSampleData(audioTrack, buffer, bufferInfo);
+            audioExtractor.advance();
+        }
+    }
+
+    private void deleteVideoFile(){
+        File videoFile = new File(videoPath);
+        if (videoFile.exists()) {
+            videoFile.delete();
+        }
+    }
+
+    private void deleteAudioFile(){
+        File audioFile = new File(audioPath);
+        if (audioFile.exists()) {
+            audioFile.delete();
+        }
+    }
+}

app/src/main/java/com/example/greenwatch/AudioRecorder.java

@@ -0,0 +1,30 @@
+package com.example.greenwatch;
+
+import android.media.MediaRecorder;
+
+import java.io.IOException;
+
+public class AudioRecorder implements Runnable {
+
+    private final MediaRecorder audioRecorder;
+    private final String audioPath;
+    public AudioRecorder(MediaRecorder audioRecorder, String audioPath) {
+        this.audioRecorder = audioRecorder;
+        this.audioPath = audioPath;
+    }
+    @Override
+    public void run() {
+        audioRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
+        audioRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
+        audioRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
+        audioRecorder.setOutputFile(audioPath);
+
+        try {
+            audioRecorder.prepare();
+            audioRecorder.start();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

app/src/main/java/com/example/greenwatch/AudiodetectionActivity.java

@@ -1,27 +0,0 @@
-package com.example.greenwatch;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-
-public class AudiodetectionActivity extends AppCompatActivity {
-
-    private Button backToMainActivityButton;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_audiodetection);
-
-        backToMainActivityButton = (Button) findViewById(R.id.audiodetectorBackToMainActivity);
-
-        backToMainActivityButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                finish();
-            }
-        });
-    }
-}

app/src/main/java/com/example/greenwatch/AudiodetectionAndAccelerometerActivity.java

@@ -1,27 +0,0 @@
-package com.example.greenwatch;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-
-public class AudiodetectionAndAccelerometerActivity extends AppCompatActivity {
-
-    private Button backToMainActivity;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_audiodetection_and_accelerometer);
-
-        backToMainActivity = (Button) findViewById(R.id.audiodetectionAndAccelerometerBackToMainActivity);
-
-        backToMainActivity.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                finish();
-            }
-        });
-    }
-}

app/src/main/java/com/example/greenwatch/Beschleunigungssensor.java

@@ -1,4 +0,0 @@
-package com.example.greenwatch;
-
-public class Beschleunigungssensor {
-}

app/src/main/java/com/example/greenwatch/Kamera.java

@@ -1,4 +0,0 @@
-package com.example.greenwatch;
-
-public class Kamera {
-}

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

@@ -1,160 +1,101 @@
 package com.example.greenwatch;
 
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
-import android.content.Intent;
+import android.Manifest;
+import android.content.pm.PackageManager;
+import android.graphics.SurfaceTexture;
 import android.os.Bundle;
+import android.view.TextureView;
 import android.view.View;
 import android.widget.Button;
 import android.widget.Toast;
 
-import com.example.greenwatch.adapters.AlarmHistoryListAdapter;
-import com.example.greenwatch.adapters.DeviceListAdapter;
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.viewmodels.MainActivityViewModel;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
 
-import java.util.List;
+public class MainActivity extends AppCompatActivity implements TextureView.SurfaceTextureListener{
 
-public class MainActivity extends AppCompatActivity {
-
-    private Button audiodetectionButton;
-    private Button videodetectionButton;
-    private Button accelerometerButton;
-    private Button audiodetectionAndAccelerometerButton;
-    private Button videodetectionAndAccelerometerButton;
-    private Button connectionButton;
-    private MainActivityViewModel mMainActivityViewModel;
+    private boolean isRecording = false;
+    private static final int REQUEST_PERMISSION = 200;
+    private Button button;
+    private TextureView textureView;
+    private AlarmRecorder alarmRecorder;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        audiodetectionButton = (Button) findViewById(R.id.audiodetectionButton);
-        videodetectionButton = (Button) findViewById(R.id.videodetectionButton);
-        accelerometerButton = (Button) findViewById(R.id.accelerometerButton);
-        audiodetectionAndAccelerometerButton = (Button) findViewById(R.id.audiodetectionAndAccelerometerButton);
-        videodetectionAndAccelerometerButton = (Button) findViewById(R.id.videodetectionAndAccelerometerButton);
-        connectionButton = (Button) findViewById(R.id.connectionButton);
+        button = findViewById(R.id.button);
+        textureView = findViewById(R.id.textureView);
+        textureView.setSurfaceTextureListener(this);
 
-        RecyclerView deviceListRecyclerView = findViewById(R.id.deviceListRecyclerView);
-        deviceListRecyclerView.setLayoutManager(new LinearLayoutManager(this));
-        deviceListRecyclerView.setHasFixedSize(true);
-
-        final DeviceListAdapter deviceListAdapter = new DeviceListAdapter();
-        deviceListRecyclerView.setAdapter(deviceListAdapter);
-
-        RecyclerView alarmHistoryListRecyclerView = findViewById(R.id.alarmHistoryListRecyclerView);
-        alarmHistoryListRecyclerView.setLayoutManager(new LinearLayoutManager(this));
-        alarmHistoryListRecyclerView.setHasFixedSize(true);
-
-        final AlarmHistoryListAdapter alarmHistoryListAdapter  = new AlarmHistoryListAdapter();
-        alarmHistoryListRecyclerView.setAdapter(alarmHistoryListAdapter);
-
-        mMainActivityViewModel = new ViewModelProvider(this).get(MainActivityViewModel.class);
-        mMainActivityViewModel.init();
-        mMainActivityViewModel.accessRequestCamera(this);
-        mMainActivityViewModel.getConnectedDeviceList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                deviceListAdapter.setDevices(devices);
-            }
-        });
-
-        mMainActivityViewModel.getAlarmHistoryList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                alarmHistoryListAdapter.setAlarmHistoryList(devices);
-            }
-        });
-
-        mMainActivityViewModel.getStartAlarmRecording().observe(this, new Observer<Boolean>() {
-            @Override
-            public void onChanged(Boolean aBoolean) {
-                if (aBoolean) {
-                    Toast.makeText(MainActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-                else {
-                    Toast.makeText(MainActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-            }
-        });
-
-        audiodetectionButton.setOnClickListener(new View.OnClickListener() {
+        button.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                //openAudiodetectionActivity();
-                mMainActivityViewModel.updateDevice(mMainActivityViewModel.getLocalDeviceUUID(), "10:51",  false, "Audio", 10);
+                if (!isRecording) {
+                    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CAMERA)
+                            != PackageManager.PERMISSION_GRANTED
+                            || ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                            != PackageManager.PERMISSION_GRANTED
+                            || ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.RECORD_AUDIO)
+                            != PackageManager.PERMISSION_GRANTED) {
+                        ActivityCompat.requestPermissions(MainActivity.this,
+                                new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.RECORD_AUDIO},
+                                REQUEST_PERMISSION);
+                    } else {
+                        isRecording = true;
+                        alarmRecorder.startRecording();
                     }
-        });
-        videodetectionButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                if (mMainActivityViewModel.isCameraAccessAllowed(MainActivity.this)) {
-                    openVideodetectionActivity();
-                }
-                else {
-                    mMainActivityViewModel.accessRequestCamera(MainActivity.this);
+                } else {
+                    isRecording = false;
+                    alarmRecorder.stopRecording();
                 }
             }
         });
-        accelerometerButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                openAccelerometerActivity();
-                mMainActivityViewModel.setSensorType(mMainActivityViewModel.getLocalDeviceUUID(), "Accelerometer");
-            }
-        });
-        audiodetectionAndAccelerometerButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                //openAudiodetectionAndAccelerometerActivity();
-                mMainActivityViewModel.setSensorType(mMainActivityViewModel.getLocalDeviceUUID(), "AudiodetectionAndAccelerometer");
-                mMainActivityViewModel.setTimeStamp(mMainActivityViewModel.getLocalDeviceUUID(), "00:00");
-                mMainActivityViewModel.setDeviceID(mMainActivityViewModel.getLocalDeviceUUID(), "6789");
-            }
-        });
-        videodetectionAndAccelerometerButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                openVideodetectionAndAccelerometerActivity();
-            }
-        });
-        connectionButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                openConnectionActivity();
-            }
-        });
-    }
-    public void openAudiodetectionActivity(){
-        Intent intent = new Intent(this, AudiodetectionActivity.class);
-        startActivity(intent);
-    }
-    public void openVideodetectionActivity(){
-        Intent intent =  new Intent(this, VideodetectionActivity.class);
-        startActivity(intent);
-    }
-    public void openAccelerometerActivity(){
-        Intent intent = new Intent(this, AccelerometerActivity.class);
-        startActivity(intent);
-    }
-    public void openAudiodetectionAndAccelerometerActivity(){
-        Intent intent = new Intent(this, AudiodetectionAndAccelerometerActivity.class);
-        startActivity(intent);
-    }
-    public void openVideodetectionAndAccelerometerActivity(){
-        Intent intent = new Intent(this, VideodetectionAndAccelerometerActivity.class);
-        startActivity(intent);
-    }
-    public void openConnectionActivity(){
-        //Intent intent = new Intent(this, ConnectionActivity.class);
-        //startActivity(intent);
-        mMainActivityViewModel.updateDevice(mMainActivityViewModel.getLocalDeviceUUID(), "10:51",  true, "Audio", 10);
     }
 
+    @Override
+    public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
+        alarmRecorder = new AlarmRecorder(surfaceTexture);
+    }
+
+    @Override
+    public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
+        // Die Größe der SurfaceTexture hat sich geändert
+        // Hier können entsprechende Anpassungen vorgenommen werden
+    }
+
+    @Override
+    public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
+        // SurfaceTexture wurde zerstört
+        // Hier können entsprechende Bereinigungen durchgeführt werden
+        return true;
+    }
+
+    @Override
+    public void onSurfaceTextureUpdated(SurfaceTexture surface) {
+        // SurfaceTexture wurde aktualisiert
+        // Hier können entsprechende Aktionen ausgeführt werden, wenn gewünscht
+    }
+
+    private SurfaceTexture getSurfaceTexture() {
+        return textureView.getSurfaceTexture();
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if (requestCode == REQUEST_PERMISSION) {
+            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                // Berechtigungen wurden gewährt
+                Toast.makeText(this, "Berechtigungen gewährt", Toast.LENGTH_SHORT).show();
+                isRecording = true;
+                alarmRecorder.startRecording();
+            } else {
+                // Berechtigungen wurden nicht gewährt
+                Toast.makeText(this, "Berechtigungen nicht gewährt", Toast.LENGTH_SHORT).show();
+            }
+        }
+    }
 }

app/src/main/java/com/example/greenwatch/Mikrofon.java

@@ -1,4 +0,0 @@
-package com.example.greenwatch;
-
-public class Mikrofon {
-}

app/src/main/java/com/example/greenwatch/VideoRecorder.java

@@ -0,0 +1,39 @@
+package com.example.greenwatch;
+
+import android.media.MediaRecorder;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+
+import java.io.IOException;
+
+public class VideoRecorder implements Runnable{
+    private final MediaRecorder videoRecorder;
+    private final String videoPath;
+    //private SurfaceHolder previewHolder;
+    private Surface surface;
+
+
+    public VideoRecorder(MediaRecorder videoRecorder, String videoPath, Surface surface) {
+        this.videoRecorder = videoRecorder;
+        this.videoPath = videoPath;
+        this.surface = surface;
+    }
+    @Override
+    public void run() {
+        videoRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
+        videoRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
+        videoRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
+        videoRecorder.setOutputFile(videoPath);
+        videoRecorder.setOrientationHint(90);
+        videoRecorder.setPreviewDisplay(surface);
+
+        try {
+            videoRecorder.prepare();
+            videoRecorder.start();
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
+

app/src/main/java/com/example/greenwatch/VideodetectionActivity.java

@@ -1,109 +0,0 @@
-package com.example.greenwatch;
-
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.camera.lifecycle.ProcessCameraProvider;
-import androidx.core.content.ContextCompat;
-import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-import android.widget.Toast;
-
-import com.example.greenwatch.adapters.AlarmHistoryListAdapter;
-import com.example.greenwatch.adapters.DeviceListAdapter;
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.viewmodels.AccelerometerViewModel;
-import com.example.greenwatch.viewmodels.VideodetectionViewModel;
-import com.google.common.util.concurrent.ListenableFuture;
-
-import java.util.List;
-import java.util.concurrent.ExecutionException;
-
-public class VideodetectionActivity extends AppCompatActivity {
-
-    private Button backToMainActivity;
-    private VideodetectionViewModel mVideoDetectionViewModel;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_videodetection);
-
-        backToMainActivity = (Button) findViewById(R.id.videodetectorBackToMainActivity);
-
-        RecyclerView recyclerView = findViewById(R.id.deviceListRecyclerView);
-        recyclerView.setLayoutManager(new LinearLayoutManager(this));
-        recyclerView.setHasFixedSize(true);
-
-        final DeviceListAdapter deviceListAdapter = new DeviceListAdapter();
-        recyclerView.setAdapter(deviceListAdapter);
-
-        RecyclerView alarmHistoryListRecyclerView = findViewById(R.id.alarmHistoryListRecyclerView);
-        alarmHistoryListRecyclerView.setLayoutManager(new LinearLayoutManager(this));
-        alarmHistoryListRecyclerView.setHasFixedSize(true);
-
-        final AlarmHistoryListAdapter alarmHistoryListAdapter  = new AlarmHistoryListAdapter();
-        alarmHistoryListRecyclerView.setAdapter(alarmHistoryListAdapter);
-
-        backToMainActivity.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                finish();
-            }
-        });
-
-        mVideoDetectionViewModel = new ViewModelProvider(this).get(VideodetectionViewModel.class);
-        mVideoDetectionViewModel.init();
-        mVideoDetectionViewModel.getConnectedDeviceList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                deviceListAdapter.setDevices(devices);
-            }
-        });
-
-        mVideoDetectionViewModel.getAlarmHistoryList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                alarmHistoryListAdapter.setAlarmHistoryList(devices);
-            }
-        });
-
-        mVideoDetectionViewModel.getStartAlarmRecording().observe(this, new Observer<Boolean>() {
-            @Override
-            public void onChanged(Boolean aBoolean) {
-                if (aBoolean) {
-                    Toast.makeText(VideodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-                else {
-                    Toast.makeText(VideodetectionActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-            }
-        });
-
-        mVideoDetectionViewModel.getVideoAlarmDetectedValue().observe(this, new Observer<Boolean>() {
-            @Override
-            public void onChanged(Boolean aBoolean) {
-                if (aBoolean) {
-                    mVideoDetectionViewModel.updateDevice(mVideoDetectionViewModel.getLocalDeviceUUID(), mVideoDetectionViewModel.getSystemTimeStamp(), true, "Video", 10);
-                }
-                else {
-                    mVideoDetectionViewModel.updateDevice(mVideoDetectionViewModel.getLocalDeviceUUID(), mVideoDetectionViewModel.getSystemTimeStamp(), false, "Video", 0);
-                }
-
-            }
-        });
-
-        final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
-        cameraProviderFuture.addListener(() -> {
-            try {
-                mVideoDetectionViewModel.bindImageAnalysis(cameraProviderFuture.get(), this, this);
-            } catch (ExecutionException | InterruptedException e) {
-                e.printStackTrace();
-            }
-        }, ContextCompat.getMainExecutor(this));
-    }
-}

app/src/main/java/com/example/greenwatch/VideodetectionAndAccelerometerActivity.java

@@ -1,171 +0,0 @@
-package com.example.greenwatch;
-
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.camera.lifecycle.ProcessCameraProvider;
-import androidx.core.content.ContextCompat;
-import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.example.greenwatch.adapters.AlarmHistoryListAdapter;
-import com.example.greenwatch.adapters.DeviceListAdapter;
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.viewmodels.AccelerometerViewModel;
-import com.example.greenwatch.viewmodels.VideodetectionAndAccelerometerViewModel;
-import com.example.greenwatch.viewmodels.VideodetectionViewModel;
-import com.google.common.util.concurrent.ListenableFuture;
-
-import java.util.List;
-import java.util.concurrent.ExecutionException;
-
-public class VideodetectionAndAccelerometerActivity extends AppCompatActivity implements SensorEventListener {
-    private SensorManager accelerometerManager;
-    private Sensor accelerometerSensor;
-    private TextView videodetectionAndAccelerometerStatusMessage;
-    private TextView videodetectionAndAccelerometerDataTV;
-    private TextView videodetectionAndAccelerometerWarningTV;
-    private Button backToMainActivity;
-    private VideodetectionAndAccelerometerViewModel mVideodetectionAndAccelerometerViewModel;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_videodetection_and_accelerometer);
-
-        videodetectionAndAccelerometerStatusMessage = (TextView) findViewById(R.id.tvvideodetectionAndAccelerometerStatusmessage);
-        videodetectionAndAccelerometerDataTV = (TextView) findViewById(R.id.tvvideodetectionAndAccelerometerData);
-        videodetectionAndAccelerometerWarningTV = (TextView) findViewById(R.id.tvvideodetectionAndAccelerometerWarning);
-        backToMainActivity = (Button) findViewById(R.id.videodetectionAndAccelerometerBackToMainActivity);
-
-        RecyclerView recyclerView = findViewById(R.id.deviceListRecyclerView);
-        recyclerView.setLayoutManager(new LinearLayoutManager(this));
-        recyclerView.setHasFixedSize(true);
-
-        final DeviceListAdapter deviceListAdapter = new DeviceListAdapter();
-        recyclerView.setAdapter(deviceListAdapter);
-
-        RecyclerView alarmHistoryListRecyclerView = findViewById(R.id.alarmHistoryListRecyclerView);
-        alarmHistoryListRecyclerView.setLayoutManager(new LinearLayoutManager(this));
-        alarmHistoryListRecyclerView.setHasFixedSize(true);
-
-        final AlarmHistoryListAdapter alarmHistoryListAdapter  = new AlarmHistoryListAdapter();
-        alarmHistoryListRecyclerView.setAdapter(alarmHistoryListAdapter);
-
-        backToMainActivity.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                finish();
-            }
-        });
-
-        mVideodetectionAndAccelerometerViewModel = new ViewModelProvider(this).get(VideodetectionAndAccelerometerViewModel.class);
-        mVideodetectionAndAccelerometerViewModel.init();
-        mVideodetectionAndAccelerometerViewModel.getConnectedDeviceList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                deviceListAdapter.setDevices(devices);
-            }
-        });
-
-        mVideodetectionAndAccelerometerViewModel.getAlarmHistoryList().observe(this, new Observer<List<Device>>() {
-            @Override
-            public void onChanged(List<Device> devices) {
-                alarmHistoryListAdapter.setAlarmHistoryList(devices);
-            }
-        });
-
-        mVideodetectionAndAccelerometerViewModel.getStartAlarmRecording().observe(this, new Observer<Boolean>() {
-            @Override
-            public void onChanged(Boolean aBoolean) {
-                if (aBoolean) {
-                    Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-                else {
-                    Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
-                }
-            }
-        });
-
-        mVideodetectionAndAccelerometerViewModel.getVideodetectionAndAccelerometerAlarmDetected().observe(this, new Observer<Boolean>() {
-            @Override
-            public void onChanged(Boolean aBoolean) {
-                if (aBoolean) {
-                    mVideodetectionAndAccelerometerViewModel.updateDevice(mVideodetectionAndAccelerometerViewModel.getLocalDeviceUUID(), mVideodetectionAndAccelerometerViewModel.getSystemTimeStamp(), true, "Accelerometer", 10);
-                }
-                else {
-                    mVideodetectionAndAccelerometerViewModel.updateDevice(mVideodetectionAndAccelerometerViewModel.getLocalDeviceUUID(), mVideodetectionAndAccelerometerViewModel.getSystemTimeStamp(), false, "Accelerometer", 0);
-                }
-
-            }
-        });
-
-        final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
-        cameraProviderFuture.addListener(() -> {
-            try {
-                mVideodetectionAndAccelerometerViewModel.bindImageAnalysis(cameraProviderFuture.get(), this, this);
-            } catch (ExecutionException | InterruptedException e) {
-                e.printStackTrace();
-            }
-        }, ContextCompat.getMainExecutor(this));
-
-        accelerometerManager = (SensorManager) getSystemService(SENSOR_SERVICE);
-        if (accelerometerManager.getSensorList(Sensor.TYPE_GYROSCOPE).size() == 0) {
-            accelerometerSensor = null;
-            Toast.makeText(VideodetectionAndAccelerometerActivity.this, "No accelerometer sensor available", Toast.LENGTH_LONG).show();
-        }
-        else {
-            accelerometerSensor = accelerometerManager.getSensorList(Sensor.TYPE_GYROSCOPE).get(0);
-        }
-    }
-
-    @Override
-    public void onSensorChanged(SensorEvent event) {
-        StringBuilder sb = new StringBuilder();
-        sb.append("x=")
-                .append(event.values[0])
-                .append("\ny=")
-                .append(event.values[1])
-                .append("\nz=")
-                .append(event.values[2]);
-        videodetectionAndAccelerometerDataTV.setText(sb.toString());
-        mVideodetectionAndAccelerometerViewModel.addValueToGesamtBE(event.values[0] + event.values[1] + event.values[2]);
-        mVideodetectionAndAccelerometerViewModel.meanValueCalculation();
-        mVideodetectionAndAccelerometerViewModel.calibrateAccelerometerSensor();
-        mVideodetectionAndAccelerometerViewModel.checkAlarmCondition();
-    }
-
-    @Override
-    public void onAccuracyChanged(Sensor sensor, int accuracy) {
-
-    }
-    @Override
-    protected void onResume() {
-        super.onResume();
-        if (accelerometerSensor != null) {
-            if (accelerometerManager.registerListener(this, accelerometerSensor, SensorManager.SENSOR_DELAY_GAME)) {
-                Toast.makeText(VideodetectionAndAccelerometerActivity.this, "We registered to the sensor", Toast.LENGTH_LONG).show();
-            } else {
-                Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Registration did not work", Toast.LENGTH_LONG).show();
-            }
-        }
-    }
-
-    @Override
-    protected void onPause() {
-        super.onPause();
-        if (accelerometerSensor != null) {
-            accelerometerManager.unregisterListener(this, accelerometerSensor);
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/adapters/AlarmHistoryListAdapter.java

@@ -1,62 +0,0 @@
-package com.example.greenwatch.adapters;
-
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
-import com.example.greenwatch.R;
-import com.example.greenwatch.models.Device;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class AlarmHistoryListAdapter extends RecyclerView.Adapter<AlarmHistoryListAdapter.AlarmHistoryListHolder> {
-    private List<Device> alarmHistoryList = new ArrayList<>();
-
-
-    @NonNull
-    @Override
-    public AlarmHistoryListHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        View itemView = LayoutInflater.from(parent.getContext())
-                .inflate(R.layout.alarm_history_item, parent, false);
-        return new AlarmHistoryListHolder(itemView);
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull AlarmHistoryListHolder holder, int position) {
-        Device currentDevice = alarmHistoryList.get(position);
-        holder.textViewSensorType.setText(holder.itemView.getContext().getString(R.string.sensor_type_placeholder, currentDevice.getSensorType()));
-        holder.textViewDeviceID.setText(holder.itemView.getContext().getString(R.string.deviceID_placeholder, currentDevice.getDeviceID()));
-        holder.textViewTimeStamp.setText(holder.itemView.getContext().getString(R.string.sensor_time_stamp_placeholder, currentDevice.getTimeStamp()));
-        holder.textViewSensorMessage.setText(holder.itemView.getContext().getString(R.string.sensor_message_placeholder, currentDevice.getSensorMassage()));
-    }
-
-    @Override
-    public int getItemCount() {
-        return alarmHistoryList.size();
-    }
-
-    public void setAlarmHistoryList(List<Device> alarmHistoryList) {
-        this.alarmHistoryList = alarmHistoryList;
-        notifyDataSetChanged();
-    }
-
-    class AlarmHistoryListHolder extends RecyclerView.ViewHolder {
-        private TextView textViewSensorType;
-        private TextView textViewDeviceID;
-        private TextView textViewTimeStamp;
-        private TextView textViewSensorMessage;
-
-        public AlarmHistoryListHolder(View itemView) {
-            super(itemView);
-            textViewSensorType = (TextView) itemView.findViewById(R.id.tvAlarmHistoryDeviceSensorType);
-            textViewDeviceID = (TextView) itemView.findViewById(R.id.tvAlarmHistoryDeviceID);
-            textViewTimeStamp = (TextView) itemView.findViewById(R.id.tvAlarmHistoryDeviceTimeStamp);
-            textViewSensorMessage = (TextView) itemView.findViewById(R.id.tvAlarmHistoryDeviceSensorMassage);
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/adapters/DeviceListAdapter.java

@@ -1,92 +0,0 @@
-package com.example.greenwatch.adapters;
-
-import android.graphics.Color;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
-import com.example.greenwatch.R;
-import com.example.greenwatch.models.Device;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-public class DeviceListAdapter extends RecyclerView.Adapter<DeviceListAdapter.DeviceListHolder> {
-    private List<Device> devices = new ArrayList<>();
-
-
-    @NonNull
-    @Override
-    public DeviceListHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        View itemView = LayoutInflater.from(parent.getContext())
-                .inflate(R.layout.device_item, parent, false);
-        return new DeviceListHolder(itemView);
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull DeviceListHolder holder, int position) {
-        Device currentDevice = devices.get(position);
-        holder.textViewSensorType.setText(holder.itemView.getContext().getString(R.string.sensor_type_placeholder, currentDevice.getSensorType()));
-        holder.textViewDeviceID.setText(holder.itemView.getContext().getString(R.string.deviceID_placeholder, currentDevice.getDeviceID()));
-        holder.textViewTimeStamp.setText(holder.itemView.getContext().getString(R.string.sensor_time_stamp_placeholder, currentDevice.getTimeStamp()));
-        holder.textViewSensorMessage.setText(holder.itemView.getContext().getString(R.string.sensor_message_placeholder, currentDevice.getSensorMassage()));
-        holder.setDeviceSensorStatus(currentDevice);
-    }
-
-    @Override
-    public int getItemCount() {
-        return devices.size();
-    }
-
-    public void setDevices(List<Device> devices) {
-        this.devices = devices;
-        Collections.sort(this.devices, new Comparator<Device>() {
-
-            @Override
-            public int compare(Device device1, Device device2) {
-                if (device1.getSensorStatus() && !device2.getSensorStatus()) {
-                    return -1;
-                } else if (!device1.getSensorStatus() && device2.getSensorStatus()) {
-                    return 1;
-                } else {
-                    return 0;
-                }
-            }
-        });
-        notifyDataSetChanged();
-    }
-
-    class DeviceListHolder extends RecyclerView.ViewHolder {
-        private TextView textViewSensorType;
-        private TextView textViewSensorStatus;
-        private TextView textViewDeviceID;
-        private TextView textViewTimeStamp;
-        private TextView textViewSensorMessage;
-
-        public DeviceListHolder(View itemView) {
-            super(itemView);
-            textViewSensorType = (TextView) itemView.findViewById(R.id.tvDeviceSensorType);
-            textViewSensorStatus = (TextView) itemView.findViewById(R.id.tvDeviceSensorStatus);
-            textViewDeviceID = (TextView) itemView.findViewById(R.id.tvDeviceID);
-            textViewTimeStamp = (TextView) itemView.findViewById(R.id.tvDeviceTimeStamp);
-            textViewSensorMessage = (TextView) itemView.findViewById(R.id.tvDeviceSensorMassage);
-        }
-
-        public void setDeviceSensorStatus(Device device) {
-            if (device.getSensorStatus()) {
-                textViewSensorStatus.setText(itemView.getContext().getString(R.string.sensor_status_placeholder, "AN"));
-                itemView.setBackgroundColor(Color.RED);
-            }
-            else {
-                textViewSensorStatus.setText(itemView.getContext().getString(R.string.sensor_status_placeholder, "AUS"));
-                itemView.setBackgroundColor(Color.WHITE);
-            }
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/communication/WiFiCommunication.java

@@ -1,118 +0,0 @@
-package com.example.greenwatch.communication;
-
-import android.util.Log;
-
-import com.example.greenwatch.repositories.DeviceRepository;
-
-import java.io.IOException;
-import java.net.DatagramPacket;
-import java.net.DatagramSocket;
-import java.net.Inet4Address;
-import java.net.InetAddress;
-import java.net.NetworkInterface;
-import java.net.SocketException;
-import java.net.UnknownHostException;
-import java.util.Enumeration;
-
-public class WiFiCommunication {
-
-    private final InetAddress address;
-    private final DatagramSocket socket;
-    private final int port;
-    private String rxString;
-    private String sendMessage;
-    //private String sendMsg = "default";
-    private boolean isNewMessage;
-    volatile private boolean running;
-    private static WiFiCommunication wifiCommunicationInstance;
-    private DeviceRepository mDeviceRepository;
-
-    private WiFiCommunication() {
-        port = 1234;
-        try {
-            socket = new DatagramSocket(port);
-            socket.setBroadcast(true);
-            address = InetAddress.getByName("255.255.255.255");
-            running = true;
-            isNewMessage = false;
-            new ReceiveThread().start();
-            new SendThread().start();
-        } catch (SocketException | UnknownHostException e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    public static synchronized WiFiCommunication getInstance() {
-        if (wifiCommunicationInstance == null){
-            wifiCommunicationInstance = new WiFiCommunication();
-        }
-        return wifiCommunicationInstance;
-    }
-
-    public void setDeviceRepository(DeviceRepository deviceRepository) {
-        this.mDeviceRepository = deviceRepository;
-    }
-
-    public void setNewMessage(String newMessage, boolean isNewMessage){
-        this.sendMessage = newMessage;
-        this.isNewMessage = isNewMessage;
-    }
-
-    public void stopCommunication() {
-        running = false;
-        socket.close();
-    }
-
-    private class SendThread extends Thread {
-        private int tmpCnt = 0;
-        @Override
-        public void run() {
-            try {
-                do {
-
-                    if(isNewMessage)
-                    {
-                        isNewMessage = false;
-                        //todo: adapt send String
-                        String txString = sendMessage;
-                        byte[] txBuffer = txString.getBytes();
-
-                        DatagramPacket txPacket = new DatagramPacket(txBuffer, txBuffer.length, address, port);
-
-                        for(int i = 0; i < 20; i++) {
-                            socket.send(txPacket);
-                        }
-                    }
-                } while (running);
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    private class ReceiveThread extends Thread {
-        private String rxString = "";
-        private String previousRxString = "";
-        @Override
-        public void run() {
-            try {
-                do {
-                    byte[] rxBuffer = new byte[1024];
-                    DatagramPacket packet = new DatagramPacket(rxBuffer, rxBuffer.length);
-                    socket.receive(packet);
-                    rxString = new String(packet.getData(), 0, packet.getLength());
-
-                    if(!previousRxString.equals(rxString)){
-                        mDeviceRepository.getNewReceivedMessage(rxString);
-
-                    }
-                    previousRxString = rxString;
-
-                } while (running);
-            }
-            catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/models/Device.java

@@ -1,57 +0,0 @@
-package com.example.greenwatch.models;
-
-
-public class Device {
-
-    private String timeStamp;
-    private String deviceID;
-    private boolean sensorStatus;
-    private String sensorType;
-    private int sensorMassage;
-
-    public Device(String timeStamp, String deviceID, boolean sensorStatus, String sensorType, int sensorMassage) {
-        this.timeStamp = timeStamp;
-        this.deviceID = deviceID;
-        this.sensorStatus = sensorStatus;
-        this.sensorType = sensorType;
-        this.sensorMassage = sensorMassage;
-    }
-    public void setTimeStamp(String timeStamp) {
-        this.timeStamp = timeStamp;
-    }
-
-    public String getTimeStamp() {
-        return timeStamp;
-    }
-
-    public void setDeviceID(String deviceID) {
-        this.deviceID = deviceID;
-    }
-
-    public String getDeviceID() {
-        return deviceID;
-    }
-    public void setSensorType(String sensorType) {
-        this.sensorType = sensorType;
-    }
-
-    public String getSensorType() {
-        return sensorType;
-    }
-
-    public void setSensorStatus(boolean sensorStatus) {
-        this.sensorStatus = sensorStatus;
-    }
-
-    public Boolean getSensorStatus() {
-        return sensorStatus;
-    }
-
-    public void setSensorMassage(int sensorMassage) {
-        this.sensorMassage = sensorMassage;
-    }
-
-    public int getSensorMassage() {
-        return sensorMassage;
-    }
-}

app/src/main/java/com/example/greenwatch/repositories/DeviceRepository.java

@@ -1,361 +0,0 @@
-package com.example.greenwatch.repositories;
-
-
-import android.util.Log;
-
-import androidx.lifecycle.MutableLiveData;
-
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.communication.WiFiCommunication;
-
-import java.net.Inet4Address;
-import java.net.InetAddress;
-import java.net.NetworkInterface;
-import java.net.SocketException;
-import java.text.SimpleDateFormat;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.List;
-import java.util.UUID;
-
-public class DeviceRepository {
-
-    private final int maxAlarmHistoryListSize = 20;
-    private final String delimiter = ", ";
-    private final String sensorStatusKey = "An";
-    private String localDeviceUUID;
-    private static DeviceRepository deviceRepositoryInstance;
-    private WiFiCommunication mWiFiCommunication;
-    private boolean startAlarmRecordingValue;
-    private MutableLiveData<Boolean> startAlarmRecording = new MutableLiveData<>();
-    private MutableLiveData<List<Device>> deviceList = new MutableLiveData<>();
-    private MutableLiveData<List<Device>> alarmHistoryList = new MutableLiveData<>();
-    private HashMap<String, Device> connectedDevicesList = new HashMap<>();
-    private HashMap<String, String> deviceIDMapper = new HashMap<>();
-    private List<Device> alarmHistoryDeviceList = new ArrayList<>();
-
-    private DeviceRepository() {
-        setLocalDeviceUUID();
-        startAlarmRecordingValue = false;
-    }
-
-    public static synchronized DeviceRepository getInstance() {
-        if (deviceRepositoryInstance == null){
-            deviceRepositoryInstance = new DeviceRepository();
-        }
-        return deviceRepositoryInstance;
-    }
-
-    public void setWiFiCommunication(WiFiCommunication wiFiCommunication) {
-        this.mWiFiCommunication = wiFiCommunication;
-    }
-
-    public MutableLiveData<List<Device>> getConnectedDeviceList() {
-        setMutableLiveDataDeviceList();
-        return deviceList;
-    }
-
-    public MutableLiveData<List<Device>> getAlarmHistoryDeviceList() {
-        setMutableLiveDataAlarmHistoryList();
-        return alarmHistoryList;
-    }
-
-    public MutableLiveData<Boolean> getStartAlarmRecording() {
-        setMutableLiveDataStartAlarmRecording();
-        return startAlarmRecording;
-    }
-
-    public void createNewDevice(String timeStamp, String deviceID, boolean sensorStatus, String sensorType, int sensorMassage){
-        Device newDevice = new Device(timeStamp, deviceID, sensorStatus, sensorType, sensorMassage);
-        if (sensorStatus) {
-            setAlarmHistoryDeviceList(newDevice);
-        }
-        boolean newStartAlarmRecordingValue = checkDeviceStatus();
-        if (startAlarmRecordingValue != newStartAlarmRecordingValue) {
-            startAlarmRecordingValue = newStartAlarmRecordingValue;
-            setMutableLiveDataStartAlarmRecording();
-        }
-        addToConnectedDeviceList(newDevice.getDeviceID(), newDevice);
-        setMutableLiveDataDeviceList();
-    }
-
-    public void getNewReceivedMessage(String newMessage) {
-        String[] messageString = messageStringSplitter(newMessage);
-        if(messageString[0]=="1" && messageString.length == 7){
-            String timeStamp = messageString[1];
-            String deviceID = messageString[3];
-            boolean sensorStatus = convertSensorStatus(messageString[4]);
-            String sensorType = messageString[5];
-            int sensorMassage = Integer.valueOf(messageString[6]);
-
-            if (deviceID.equals(checkDeviceID(localDeviceUUID))) {
-                return;
-            }
-
-            if(!connectedDevicesList.containsKey(deviceID)) {
-                createNewDevice(timeStamp, deviceID, sensorStatus, sensorType, sensorMassage);
-            }
-            else {
-                updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
-            }
-        }
-    }
-
-    private String messageStringBuilder(String deviceID) {
-        StringBuilder message = new StringBuilder();
-        Device device = connectedDevicesList.get(deviceID);
-        if(device != null) {
-            message.append("1")
-                    .append(delimiter)
-                    .append(device.getTimeStamp())
-                    .append(delimiter)
-                    .append("Gruppe3")
-                    .append(delimiter)
-                    //.append(device.getDeviceID())
-                    .append(getLocalIpAddress(deviceID))
-                    .append(delimiter)
-                    .append(device.getSensorStatus())
-                    .append(delimiter)
-                    .append(device.getSensorType())
-                    .append(delimiter)
-                    .append(device.getSensorMassage());
-        }
-        else {
-            message.append("")
-                    .append(delimiter)
-                    .append("")
-                    .append(delimiter)
-                    .append("")
-                    .append(delimiter)
-                    .append("")
-                    .append(delimiter)
-                    .append("")
-                    .append(delimiter)
-                    .append("")
-                    .append(delimiter)
-                    .append("");
-        }
-        return message.toString();
-    }
-
-    public String getLocalDeviceUUID() {
-        return localDeviceUUID;
-    }
-
-    public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            device.setTimeStamp(timeStamp);
-            device.setSensorType(sensorType);
-            device.setSensorMassage(sensorMassage);
-            if (!device.getSensorStatus() && sensorStatus) {
-                setAlarmHistoryDeviceList(device);
-            }
-            device.setSensorStatus(sensorStatus);
-            boolean newStartAlarmRecordingValue = checkDeviceStatus();
-            if (startAlarmRecordingValue != newStartAlarmRecordingValue) {
-                startAlarmRecordingValue = newStartAlarmRecordingValue;
-                setMutableLiveDataStartAlarmRecording();
-            }
-            addToConnectedDeviceList(checkedDeviceID, device);
-            setMutableLiveDataDeviceList();
-        }
-    }
-
-    public void setTimeStamp(String deviceID, String timeStamp) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            device.setTimeStamp(timeStamp);
-            addToConnectedDeviceList(checkedDeviceID, device);
-            setMutableLiveDataDeviceList();
-        }
-    }
-
-    public String getTimeStamp(String deviceID) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            return device.getTimeStamp();
-        }
-        return "";
-    }
-
-    public void setDeviceID(String deviceID, String newDeviceID) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            device.setDeviceID(newDeviceID);
-            setDeviceIDMapper(newDeviceID);
-            connectedDevicesList.remove(checkedDeviceID);
-            addToConnectedDeviceList(newDeviceID, device);
-            setMutableLiveDataDeviceList();
-        }
-    }
-
-    public String getDeviceID(String deviceID) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            return device.getDeviceID();
-        }
-        return "";
-    }
-
-    public void setSensorStatus(String deviceID, boolean sensorStatus) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            if (!device.getSensorStatus() && sensorStatus) {
-                setAlarmHistoryDeviceList(device);
-            }
-            device.setSensorStatus(sensorStatus);
-            boolean newStartAlarmRecordingValue = checkDeviceStatus();
-            if (startAlarmRecordingValue != newStartAlarmRecordingValue) {
-                startAlarmRecordingValue = newStartAlarmRecordingValue;
-                setMutableLiveDataStartAlarmRecording();
-            }
-            addToConnectedDeviceList(checkedDeviceID, device);
-            setMutableLiveDataDeviceList();
-
-        }
-    }
-
-    public boolean getSensorStatus(String deviceID) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            return device.getSensorStatus();
-        }
-        return false;
-    }
-
-    public void setSensorType(String deviceID, String sensorType) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            device.setSensorType(sensorType);
-            addToConnectedDeviceList(checkedDeviceID, device);
-            setMutableLiveDataDeviceList();
-        }
-    }
-
-    public String getSensorType(String deviceID) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            return device.getSensorType();
-        }
-        return "";
-    }
-
-    public void setSensorMassage(String deviceID, int sensorMessage) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            device.setSensorMassage(sensorMessage);
-            addToConnectedDeviceList(checkedDeviceID, device);
-            setMutableLiveDataDeviceList();
-        }
-    }
-
-    public int getSensorMassage(String deviceID) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null) {
-            return device.getSensorMassage();
-        }
-        return 0;
-    }
-
-    public String getSystemTimeStamp() {
-        SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
-        Date date = new Date(System.currentTimeMillis());
-        return formatter.format(date);
-    }
-
-    private void setMutableLiveDataDeviceList() {
-        List<Device> list = new ArrayList<>(connectedDevicesList.values());
-        deviceList.setValue(list);
-    }
-
-    private void setMutableLiveDataAlarmHistoryList() {
-        alarmHistoryList.setValue(alarmHistoryDeviceList);
-    }
-
-    private void setMutableLiveDataStartAlarmRecording() {
-        startAlarmRecording.setValue(startAlarmRecordingValue);
-    }
-
-    private void addToConnectedDeviceList(String key, Device device) {
-        connectedDevicesList.put(key, device);
-        if (key.equals(checkDeviceID(localDeviceUUID))) {
-            mWiFiCommunication.setNewMessage(messageStringBuilder(device.getDeviceID()),true);
-        }
-    }
-
-    private String checkDeviceID(String deviceID) {
-        if(!deviceIDMapper.isEmpty() && deviceID.equals(localDeviceUUID)) {
-            return deviceIDMapper.get(deviceID);
-        }
-        return deviceID;
-    }
-
-    private void setDeviceIDMapper(String deviceID) {
-        deviceIDMapper.put(localDeviceUUID, deviceID);
-    }
-
-    private void setLocalDeviceUUID(){
-        this.localDeviceUUID = UUID.randomUUID().toString();
-    }
-
-    private String[] messageStringSplitter(String message) {
-        return message.split(delimiter);
-    }
-
-    private boolean convertSensorStatus(String status) {
-        return status.equals(sensorStatusKey);
-    }
-
-    private void setAlarmHistoryDeviceList(Device device) {
-        if (alarmHistoryDeviceList.size() == maxAlarmHistoryListSize) {
-            alarmHistoryDeviceList.remove(alarmHistoryDeviceList.size() -1);
-        }
-        Device alarmHistoryDevice = new Device(device.getTimeStamp(), device.getDeviceID(), device.getSensorStatus(), device.getSensorType(), device.getSensorMassage());
-        alarmHistoryDeviceList.add(0, alarmHistoryDevice);
-        setMutableLiveDataAlarmHistoryList();
-    }
-
-    private boolean checkDeviceStatus() {
-        for (Device device : connectedDevicesList.values()) {
-            if (device.getSensorStatus()) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    public String getLocalIpAddress(String deviceID) {
-        String checkedDeviceID = checkDeviceID(deviceID);
-        Device device = connectedDevicesList.get(checkedDeviceID);
-        if(device != null){
-            try {
-                for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
-                    NetworkInterface networkInterface = (NetworkInterface) ((Enumeration<?>) en).nextElement();
-                    for (Enumeration<InetAddress> addresses = networkInterface.getInetAddresses(); addresses.hasMoreElements();) {
-                        InetAddress inetAddress = addresses.nextElement();
-                        if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
-                            return inetAddress.getHostAddress();
-                        }
-                    }
-                }
-            } catch (SocketException ex) {
-                ex.printStackTrace();
-            }
-        }
-        return "";
-    }
-}

app/src/main/java/com/example/greenwatch/sensors/AccelerometerSensor.java

@@ -1,85 +0,0 @@
-package com.example.greenwatch.sensors;
-
-import androidx.lifecycle.MutableLiveData;
-
-import java.util.ArrayList;
-
-public class AccelerometerSensor {
-    private MutableLiveData<Boolean> mAccelerometerAlarmDetected = new MutableLiveData<>();
-    private static AccelerometerSensor accelerometerSensorInstance;
-    private boolean accelerometerAlarmDetected;
-    private ArrayList<Float> Gesamt_be;
-    int arraySize = 500;
-    int functionCallCount;
-    float meanValue;
-    float offsetValue;
-    float thresholdValue;
-    boolean startMeasuring;
-
-    private AccelerometerSensor() {
-        initGesamtBE();
-        accelerometerAlarmDetected = false;
-        setMutableLiveDataAccelerometerAlarmDetected();
-        functionCallCount = 0;
-        meanValue = 0.0f;
-        offsetValue = 0.1f;
-        thresholdValue = 0.15f;
-        startMeasuring = false;
-    }
-
-    public static synchronized AccelerometerSensor getInstance() {
-        if (accelerometerSensorInstance == null){
-            accelerometerSensorInstance = new AccelerometerSensor();
-        }
-        return accelerometerSensorInstance;
-    }
-
-    public MutableLiveData<Boolean> getAccelerometerAlarmDetected() {
-        setMutableLiveDataAccelerometerAlarmDetected();
-        return mAccelerometerAlarmDetected;
-    }
-
-    private void setMutableLiveDataAccelerometerAlarmDetected() {
-        mAccelerometerAlarmDetected.setValue(accelerometerAlarmDetected);
-    }
-
-    private void initGesamtBE() {
-        Gesamt_be = new ArrayList<>(arraySize);
-        for (int i = 0; i < arraySize; i++) {
-            Gesamt_be.add(0.0f);
-        }
-    }
-
-    public void addValueToGesamtBE(float newValue) {
-        if (Gesamt_be.size() == arraySize) {
-            Gesamt_be.remove(Gesamt_be.size() -1);
-        }
-        Gesamt_be.add(0, newValue);
-        functionCallCount++;
-    }
-
-    public void meanValueCalculation() {
-        for (float element : Gesamt_be) {
-            meanValue += Math.abs(element);
-        }
-        meanValue = meanValue/arraySize;
-    }
-
-    public void calibrateAccelerometerSensor() {
-        if (functionCallCount <= arraySize) {
-            offsetValue = meanValue;
-        }
-        else {
-            startMeasuring = true;
-        }
-    }
-
-    public void checkAlarmCondition() {
-        if (meanValue > (thresholdValue + offsetValue) && startMeasuring && !mAccelerometerAlarmDetected.getValue()) {
-            mAccelerometerAlarmDetected.setValue(true);
-        }
-        else if (meanValue < (thresholdValue + offsetValue) && mAccelerometerAlarmDetected.getValue()){
-            mAccelerometerAlarmDetected.setValue(false);
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/sensors/CameraSensor.java

@@ -1,126 +0,0 @@
-package com.example.greenwatch.sensors;
-
-import android.content.Context;
-import android.graphics.ImageFormat;
-import android.media.Image;
-import android.util.Size;
-
-import androidx.camera.core.CameraSelector;
-import androidx.camera.core.ImageAnalysis;
-import androidx.camera.lifecycle.ProcessCameraProvider;
-import androidx.core.content.ContextCompat;
-import androidx.lifecycle.LifecycleOwner;
-import androidx.lifecycle.MutableLiveData;
-
-import java.nio.ByteBuffer;
-
-public class CameraSensor {
-    private final MutableLiveData<Boolean> mVideoAlarmDetected = new MutableLiveData<>();
-    private static CameraSensor cameraSensorInstance;
-    private boolean videoAlarmDetected;
-    private ByteBuffer previousBuffer;
-    private int previousWidth;
-    private int previousHeight;
-
-    private CameraSensor() {
-        videoAlarmDetected = false;
-    }
-
-    public static synchronized CameraSensor getInstance() {
-        if (cameraSensorInstance == null){
-            cameraSensorInstance = new CameraSensor();
-        }
-        return cameraSensorInstance;
-    }
-
-    public MutableLiveData<Boolean> getVideoAlarmDetectedValue() {
-        setMutableLiveDataVideoAlarmDetected();
-        return mVideoAlarmDetected;
-    }
-
-    private void setMutableLiveDataVideoAlarmDetected() {
-        mVideoAlarmDetected.setValue(videoAlarmDetected);
-    }
-
-    public void bindImageAnalysis(ProcessCameraProvider cameraProvider, LifecycleOwner lifecycleOwner, Context context) {
-        ImageAnalysis.Builder builder = new ImageAnalysis.Builder();
-        builder.setTargetResolution(new Size(640, 480));
-        builder.setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST);
-        ImageAnalysis imageAnalysis = builder.build();
-        imageAnalysis.setAnalyzer(
-                ContextCompat.getMainExecutor(context),
-                imageProxy -> {
-
-                    int imageFormat = imageProxy.getFormat();
-
-                    if (imageFormat == ImageFormat.YUV_420_888) {
-
-                        Image currentImage = imageProxy.getImage();
-
-                        if (previousHeight != 0) {
-                            assert currentImage != null;
-                            videoAlarmDetected = compareFrames(currentImage);
-                        }
-
-                        assert currentImage != null;
-                        Image.Plane[] planes = currentImage.getPlanes();
-                        ByteBuffer buffer = planes[0].getBuffer().duplicate();
-                        previousBuffer = ByteBuffer.allocateDirect(buffer.remaining());
-                        previousBuffer.put(buffer);
-                        previousWidth = currentImage.getWidth();
-                        previousHeight = currentImage.getHeight();
-
-                        currentImage.close();
-
-                        checkAlarmCondition();
-
-                    }
-
-                    imageProxy.close();
-                });
-
-        CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
-
-        cameraProvider.bindToLifecycle(lifecycleOwner, cameraSelector, imageAnalysis);
-    }
-
-    private boolean compareFrames(Image currentImage) {
-
-        ByteBuffer currentBuffer = currentImage.getPlanes()[0].getBuffer();
-
-        int currentWidth = currentImage.getWidth();
-        int currentHeight = currentImage.getHeight();
-
-        if (previousWidth != currentWidth || previousHeight != currentHeight) {
-            return false;
-        }
-
-        for (int row = 0; row < previousHeight; row++) {
-            for (int col = 0; col < previousWidth; col++) {
-
-                int previousIndex = row * previousWidth + col;
-                int currentIndex = row * currentWidth + col;
-
-                int previousPixel = previousBuffer.get(previousIndex) & 0xFF;
-                int currentPixel = currentBuffer.get(currentIndex) & 0xFF;
-
-                int pixelDifference = Math.abs(previousPixel - currentPixel);
-                int threshold = 120;
-
-                if (pixelDifference > threshold) {
-                    return true;
-                }
-            }
-        }
-        return false;
-    }
-
-    public void checkAlarmCondition() {
-        if (videoAlarmDetected && !mVideoAlarmDetected.getValue()) {
-            setMutableLiveDataVideoAlarmDetected();
-        }
-        else if (!videoAlarmDetected && mVideoAlarmDetected.getValue()){
-            setMutableLiveDataVideoAlarmDetected();
-        }
-    }
-}

app/src/main/java/com/example/greenwatch/viewmodels/AccelerometerViewModel.java

@@ -1,170 +0,0 @@
-package com.example.greenwatch.viewmodels;
-
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.repositories.DeviceRepository;
-
-import java.text.SimpleDateFormat;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
-public class AccelerometerViewModel extends ViewModel implements ViewModelInterface {
-
-    private MutableLiveData<List<Device>> mDeviceList;
-    private MutableLiveData<Boolean> mMovementDetected = new MutableLiveData<>();
-    private MutableLiveData<List<Device>> mAlarmHistoryList;
-    private MutableLiveData<Boolean> mStartAlarmRecording;
-    private DeviceRepository mDeviceRepository;
-    private ArrayList<Float> Gesamt_be;
-    int arraySize = 500;
-    int functionCallCount;
-    float meanValue;
-    float offsetValue;
-    float thresholdValue;
-    boolean startMeasuring;
-
-    @Override
-    public void init() {
-        if (mDeviceList == null) {
-            mDeviceRepository = DeviceRepository.getInstance();
-            mDeviceList = mDeviceRepository.getConnectedDeviceList();
-            mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
-            mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
-        }
-        initGesamtBE();
-        mMovementDetected.setValue(false);
-        functionCallCount = 0;
-        meanValue = 0f;
-        offsetValue = 0.1f;
-        thresholdValue = 0.15f;
-        startMeasuring = false;
-    }
-
-    public void initGesamtBE() {
-        Gesamt_be = new ArrayList<>(arraySize);
-        for (int i = 0; i < arraySize; i++) {
-            Gesamt_be.add(0f);
-        }
-    }
-
-    public void addValueToGesamtBE(float newValue) {
-        if (Gesamt_be.size() == arraySize) {
-            Gesamt_be.remove(Gesamt_be.size() -1);
-        }
-        Gesamt_be.add(0, newValue);
-        functionCallCount++;
-    }
-
-    public void meanValueCalculation() {
-        for (float element : Gesamt_be) {
-            meanValue += Math.abs(element);
-        }
-        meanValue = meanValue/arraySize;
-    }
-
-    public void calibrateAccelerometerSensor() {
-        if (functionCallCount <= arraySize) {
-            offsetValue = meanValue;
-        }
-        else {
-            startMeasuring = true;
-        }
-    }
-
-    public void checkAlarmCondition() {
-        if (meanValue > (thresholdValue + offsetValue) && startMeasuring && !mMovementDetected.getValue()) {
-            mMovementDetected.setValue(true);
-        }
-        else if (meanValue < (thresholdValue + offsetValue) && mMovementDetected.getValue()){
-            mMovementDetected.setValue(false);
-        }
-    }
-
-    public LiveData<Boolean> getMovementDetectedValue() {
-        return mMovementDetected;
-    }
-
-    @Override
-    public LiveData<List<Device>> getConnectedDeviceList() {
-        return mDeviceList;
-    }
-
-    @Override
-    public LiveData<List<Device>> getAlarmHistoryList() {
-        return mAlarmHistoryList;
-    }
-
-    @Override
-    public LiveData<Boolean> getStartAlarmRecording() {
-        return mStartAlarmRecording;
-    }
-
-    @Override
-    public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
-        mDeviceRepository.updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
-    }
-
-    @Override
-    public void setTimeStamp(String deviceID, String timeStamp) {
-        mDeviceRepository.setTimeStamp(deviceID, timeStamp);
-    }
-
-    @Override
-    public String getTimeStamp(String deviceID) {
-        return mDeviceRepository.getTimeStamp(deviceID);
-    }
-
-    @Override
-    public void setDeviceID(String deviceID, String newDeviceID) {
-        mDeviceRepository.setDeviceID(deviceID, newDeviceID);
-    }
-
-    @Override
-    public String getDeviceID(String deviceID) {
-        return mDeviceRepository.getDeviceID(deviceID);
-    }
-
-    @Override
-    public void setSensorStatus(String deviceID, boolean sensorStatus) {
-        mDeviceRepository.setSensorStatus(deviceID, sensorStatus);
-    }
-
-    @Override
-    public boolean getSensorStatus(String deviceID) {
-        return mDeviceRepository.getSensorStatus(deviceID);
-    }
-
-    @Override
-    public void setSensorType(String deviceID, String sensorType) {
-        mDeviceRepository.setSensorType(deviceID, sensorType);
-    }
-
-    @Override
-    public String getSensorType(String deviceID) {
-        return mDeviceRepository.getSensorType(deviceID);
-    }
-
-    @Override
-    public void setSensorMassage(String deviceID, int sensorMessage) {
-        mDeviceRepository.setSensorMassage(deviceID, sensorMessage);
-    }
-
-    @Override
-    public int getSensorMassage(String deviceID) {
-        return mDeviceRepository.getSensorMassage(deviceID);
-    }
-
-    @Override
-    public String getLocalDeviceUUID() {
-        return mDeviceRepository.getLocalDeviceUUID();
-    }
-
-    @Override
-    public String getSystemTimeStamp() {
-        return mDeviceRepository.getSystemTimeStamp();
-    }
-}

app/src/main/java/com/example/greenwatch/viewmodels/MainActivityViewModel.java

@@ -1,131 +0,0 @@
-package com.example.greenwatch.viewmodels;
-
-import android.app.Activity;
-import android.content.Context;
-import android.content.pm.PackageManager;
-
-import androidx.core.app.ActivityCompat;
-import androidx.core.content.ContextCompat;
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-
-import com.example.greenwatch.communication.WiFiCommunication;
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.repositories.DeviceRepository;
-
-import java.util.List;
-
-public class MainActivityViewModel extends ViewModel implements ViewModelInterface {
-
-    private MutableLiveData<List<Device>> mDeviceList;
-    private MutableLiveData<List<Device>> mAlarmHistoryList;
-    private MutableLiveData<Boolean> mStartAlarmRecording;
-    private DeviceRepository mDeviceRepository;
-    private static final int RIGHTS_REQUEST_CAMERA = 10;
-
-    @Override
-    public void init() {
-        WiFiCommunication mWiFiCommunication;
-        if(mDeviceList != null) {
-            return;
-        }
-        //todo: check if WiFi instanz can be hold only by the repository
-        mDeviceRepository = DeviceRepository.getInstance();
-        mWiFiCommunication = WiFiCommunication.getInstance();
-        mDeviceRepository.setWiFiCommunication(mWiFiCommunication);
-        mWiFiCommunication.setDeviceRepository(mDeviceRepository);
-        mDeviceRepository.createNewDevice(mDeviceRepository.getSystemTimeStamp(), mDeviceRepository.getLocalDeviceUUID(), false, "No Sensor selected", 0);
-        mDeviceList = mDeviceRepository.getConnectedDeviceList();
-        mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
-        mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
-    }
-
-    public boolean isCameraAccessAllowed(Context context) {
-        return ContextCompat.checkSelfPermission(context, android.Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED;
-    }
-
-    public void accessRequestCamera(Activity activity) {
-        ActivityCompat.requestPermissions(activity, new String[]{android.Manifest.permission.CAMERA}, RIGHTS_REQUEST_CAMERA);
-    }
-
-    @Override
-    public LiveData<List<Device>> getConnectedDeviceList() {
-        return mDeviceList;
-    }
-
-    @Override
-    public LiveData<List<Device>> getAlarmHistoryList() {
-        return mAlarmHistoryList;
-    }
-
-    @Override
-    public LiveData<Boolean> getStartAlarmRecording() {
-        return mStartAlarmRecording;
-    }
-
-    @Override
-    public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
-        mDeviceRepository.updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
-    }
-
-    @Override
-    public void setTimeStamp(String deviceID, String timeStamp) {
-        mDeviceRepository.setTimeStamp(deviceID, timeStamp);
-    }
-
-    @Override
-    public String getTimeStamp(String deviceID) {
-        return mDeviceRepository.getTimeStamp(deviceID);
-    }
-
-    @Override
-    public void setDeviceID(String deviceID, String newDeviceID) {
-        mDeviceRepository.setDeviceID(deviceID, newDeviceID);
-    }
-
-    @Override
-    public String getDeviceID(String deviceID) {
-        return mDeviceRepository.getDeviceID(deviceID);
-    }
-
-    @Override
-    public void setSensorStatus(String deviceID, boolean sensorStatus) {
-        mDeviceRepository.setSensorStatus(deviceID, sensorStatus);
-    }
-
-    @Override
-    public boolean getSensorStatus(String deviceID) {
-        return mDeviceRepository.getSensorStatus(deviceID);
-    }
-
-    @Override
-    public void setSensorType(String deviceID, String sensorType) {
-        mDeviceRepository.setSensorType(deviceID, sensorType);
-    }
-
-    @Override
-    public String getSensorType(String deviceID) {
-        return mDeviceRepository.getSensorType(deviceID);
-    }
-
-    @Override
-    public void setSensorMassage(String deviceID, int sensorMessage) {
-        mDeviceRepository.setSensorMassage(deviceID, sensorMessage);
-    }
-
-    @Override
-    public int getSensorMassage(String deviceID) {
-        return mDeviceRepository.getSensorMassage(deviceID);
-    }
-
-    @Override
-    public String getLocalDeviceUUID() {
-        return mDeviceRepository.getLocalDeviceUUID();
-    }
-
-    @Override
-    public String getSystemTimeStamp() {
-        return null;
-    }
-}

app/src/main/java/com/example/greenwatch/viewmodels/VideodetectionAndAccelerometerViewModel.java

@@ -1,196 +0,0 @@
-package com.example.greenwatch.viewmodels;
-
-import android.content.Context;
-
-import androidx.camera.lifecycle.ProcessCameraProvider;
-import androidx.lifecycle.LifecycleOwner;
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.Observer;
-import androidx.lifecycle.ViewModel;
-
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.repositories.DeviceRepository;
-import com.example.greenwatch.sensors.AccelerometerSensor;
-import com.example.greenwatch.sensors.CameraSensor;
-
-import java.util.List;
-
-public class VideodetectionAndAccelerometerViewModel extends ViewModel implements ViewModelInterface{
-    private MutableLiveData<List<Device>> mDeviceList;
-    private MutableLiveData<Boolean> mAccelerometerAlarmDetected;
-    private MutableLiveData<Boolean> mVideoAlarmDetected;
-    private MutableLiveData<Boolean> mVideodetectionAndAccelerometerAlarmDetected = new MutableLiveData<>();
-    private MutableLiveData<List<Device>> mAlarmHistoryList;
-    private MutableLiveData<Boolean> mStartAlarmRecording;
-    private AccelerometerSensor mAccelerometerSensor;
-    private CameraSensor mCameraSensor;
-    private DeviceRepository mDeviceRepository;
-    private boolean VideodetectionAndAccelerometerAlarmDetected;
-
-    @Override
-    public void init() {
-        if (mDeviceRepository == null) {
-            mDeviceRepository = DeviceRepository.getInstance();
-        }
-        if (mAccelerometerSensor == null) {
-            mAccelerometerSensor = AccelerometerSensor.getInstance();
-        }
-        if (mCameraSensor == null) {
-            mCameraSensor = CameraSensor.getInstance();
-        }
-        if (mDeviceList == null) {
-            mDeviceList = mDeviceRepository.getConnectedDeviceList();
-        }
-        if (mAlarmHistoryList == null) {
-            mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
-        }
-        if (mStartAlarmRecording == null) {
-            mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
-        }
-        if (mAccelerometerAlarmDetected == null) {
-            mAccelerometerAlarmDetected = mAccelerometerSensor.getAccelerometerAlarmDetected();
-        }
-        if (mVideoAlarmDetected == null) {
-            mVideoAlarmDetected = mCameraSensor.getVideoAlarmDetectedValue();
-        }
-        VideodetectionAndAccelerometerAlarmDetected = false;
-        registerAlarmObserver();
-    }
-
-    public void addValueToGesamtBE(float newValue) {
-        mAccelerometerSensor.addValueToGesamtBE(newValue);
-    }
-
-    public void meanValueCalculation() {
-        mAccelerometerSensor.meanValueCalculation();
-    }
-
-    public void calibrateAccelerometerSensor() {
-        mAccelerometerSensor.calibrateAccelerometerSensor();
-    }
-
-    public void checkAlarmCondition() {
-        mAccelerometerSensor.checkAlarmCondition();
-    }
-
-    public void bindImageAnalysis(ProcessCameraProvider cameraProvider, LifecycleOwner lifecycleOwner, Context context) {
-        mCameraSensor.bindImageAnalysis(cameraProvider, lifecycleOwner, context);
-    }
-
-    public LiveData<Boolean> getVideodetectionAndAccelerometerAlarmDetected() {
-        setMutableLiveDataVideodetectionAndAccelerometerAlarmDetected();
-        return mVideodetectionAndAccelerometerAlarmDetected;
-    }
-
-    private void setMutableLiveDataVideodetectionAndAccelerometerAlarmDetected() {
-        mVideodetectionAndAccelerometerAlarmDetected.setValue(VideodetectionAndAccelerometerAlarmDetected);
-    }
-
-    Observer<Boolean> observer = new Observer<Boolean>() {
-        @Override
-        public void onChanged(Boolean aBoolean) {
-            if (mVideoAlarmDetected.getValue() || mAccelerometerAlarmDetected.getValue() && !VideodetectionAndAccelerometerAlarmDetected) {
-                VideodetectionAndAccelerometerAlarmDetected = true;
-                setMutableLiveDataVideodetectionAndAccelerometerAlarmDetected();
-
-            }
-            else if (!mVideoAlarmDetected.getValue() && !mAccelerometerAlarmDetected.getValue() && VideodetectionAndAccelerometerAlarmDetected) {
-                VideodetectionAndAccelerometerAlarmDetected = false;
-                setMutableLiveDataVideodetectionAndAccelerometerAlarmDetected();
-            }
-        }
-    };
-
-    private void registerAlarmObserver() {
-        mVideoAlarmDetected.observeForever(observer);
-        mAccelerometerAlarmDetected.observeForever(observer);
-    }
-
-    @Override
-    protected void onCleared() {
-        super.onCleared();
-        mVideoAlarmDetected.removeObserver(observer);
-        mAccelerometerAlarmDetected.removeObserver(observer);
-    }
-
-    @Override
-    public LiveData<List<Device>> getConnectedDeviceList() {
-        return mDeviceList;
-    }
-
-    @Override
-    public LiveData<List<Device>> getAlarmHistoryList() {
-        return mAlarmHistoryList;
-    }
-
-    @Override
-    public LiveData<Boolean> getStartAlarmRecording() {
-        return mStartAlarmRecording;
-    }
-
-    @Override
-    public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
-        mDeviceRepository.updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
-    }
-
-    @Override
-    public void setTimeStamp(String deviceID, String timeStamp) {
-        mDeviceRepository.setTimeStamp(deviceID, timeStamp);
-    }
-
-    @Override
-    public String getTimeStamp(String deviceID) {
-        return mDeviceRepository.getTimeStamp(deviceID);
-    }
-
-    @Override
-    public void setDeviceID(String deviceID, String newDeviceID) {
-        mDeviceRepository.setDeviceID(deviceID, newDeviceID);
-    }
-
-    @Override
-    public String getDeviceID(String deviceID) {
-        return mDeviceRepository.getDeviceID(deviceID);
-    }
-
-    @Override
-    public void setSensorStatus(String deviceID, boolean sensorStatus) {
-        mDeviceRepository.setSensorStatus(deviceID, sensorStatus);
-    }
-
-    @Override
-    public boolean getSensorStatus(String deviceID) {
-        return mDeviceRepository.getSensorStatus(deviceID);
-    }
-
-    @Override
-    public void setSensorType(String deviceID, String sensorType) {
-        mDeviceRepository.setSensorType(deviceID, sensorType);
-    }
-
-    @Override
-    public String getSensorType(String deviceID) {
-        return mDeviceRepository.getSensorType(deviceID);
-    }
-
-    @Override
-    public void setSensorMassage(String deviceID, int sensorMessage) {
-        mDeviceRepository.setSensorMassage(deviceID, sensorMessage);
-    }
-
-    @Override
-    public int getSensorMassage(String deviceID) {
-        return mDeviceRepository.getSensorMassage(deviceID);
-    }
-
-    @Override
-    public String getLocalDeviceUUID() {
-        return mDeviceRepository.getLocalDeviceUUID();
-    }
-
-    @Override
-    public String getSystemTimeStamp() {
-        return mDeviceRepository.getSystemTimeStamp();
-    }
-}

app/src/main/java/com/example/greenwatch/viewmodels/VideodetectionViewModel.java

@@ -1,140 +0,0 @@
-package com.example.greenwatch.viewmodels;
-
-import android.content.Context;
-
-import androidx.camera.lifecycle.ProcessCameraProvider;
-import androidx.lifecycle.LifecycleOwner;
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-
-import com.example.greenwatch.models.Device;
-import com.example.greenwatch.repositories.DeviceRepository;
-import com.example.greenwatch.sensors.CameraSensor;
-
-import java.util.List;
-
-public class VideodetectionViewModel extends ViewModel implements ViewModelInterface {
-
-    private MutableLiveData<List<Device>> mDeviceList;
-    private MutableLiveData<Boolean> mVideoAlarmDetected;
-    private MutableLiveData<List<Device>> mAlarmHistoryList;
-    private MutableLiveData<Boolean> mStartAlarmRecording;
-    private DeviceRepository mDeviceRepository;
-    private CameraSensor mCameraSensor;
-
-
-    public LiveData<Boolean> getVideoMovementDetectedValue() {
-        return mVideoAlarmDetected;
-    }
-
-    @Override
-    public void init() {
-        if (mDeviceRepository == null) {
-            mDeviceRepository = DeviceRepository.getInstance();
-        }
-        if (mCameraSensor == null) {
-            mCameraSensor = CameraSensor.getInstance();
-        }
-        if (mDeviceList == null) {
-            mDeviceList = mDeviceRepository.getConnectedDeviceList();
-        }
-        if (mAlarmHistoryList == null) {
-            mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
-        }
-        if (mStartAlarmRecording == null) {
-            mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
-        }
-        if (mVideoAlarmDetected == null) {
-            mVideoAlarmDetected = mCameraSensor.getVideoAlarmDetectedValue();
-        }
-    }
-
-    public void bindImageAnalysis(ProcessCameraProvider cameraProvider, LifecycleOwner lifecycleOwner, Context context) {
-        mCameraSensor.bindImageAnalysis(cameraProvider, lifecycleOwner, context);
-    }
-
-    public LiveData<Boolean> getVideoAlarmDetectedValue() {
-        return mVideoAlarmDetected;
-    }
-
-    @Override
-    public LiveData<List<Device>> getConnectedDeviceList() {
-        return mDeviceList;
-    }
-
-    @Override
-    public LiveData<List<Device>> getAlarmHistoryList() {
-        return mAlarmHistoryList;
-    }
-
-    @Override
-    public LiveData<Boolean> getStartAlarmRecording() {
-        return mStartAlarmRecording;
-    }
-
-    @Override
-    public void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage) {
-        mDeviceRepository.updateDevice(deviceID, timeStamp, sensorStatus, sensorType, sensorMassage);
-    }
-
-    @Override
-    public void setTimeStamp(String deviceID, String timeStamp) {
-        mDeviceRepository.setTimeStamp(deviceID, timeStamp);
-    }
-
-    @Override
-    public String getTimeStamp(String deviceID) {
-        return mDeviceRepository.getTimeStamp(deviceID);
-    }
-
-    @Override
-    public void setDeviceID(String deviceID, String newDeviceID) {
-        mDeviceRepository.setDeviceID(deviceID, newDeviceID);
-    }
-
-    @Override
-    public String getDeviceID(String deviceID) {
-        return mDeviceRepository.getDeviceID(deviceID);
-    }
-
-    @Override
-    public void setSensorStatus(String deviceID, boolean sensorStatus) {
-        mDeviceRepository.setSensorStatus(deviceID, sensorStatus);
-    }
-
-    @Override
-    public boolean getSensorStatus(String deviceID) {
-        return mDeviceRepository.getSensorStatus(deviceID);
-    }
-
-    @Override
-    public void setSensorType(String deviceID, String sensorType) {
-        mDeviceRepository.setSensorType(deviceID, sensorType);
-    }
-
-    @Override
-    public String getSensorType(String deviceID) {
-        return mDeviceRepository.getSensorType(deviceID);
-    }
-
-    @Override
-    public void setSensorMassage(String deviceID, int sensorMessage) {
-        mDeviceRepository.setSensorMassage(deviceID, sensorMessage);
-    }
-
-    @Override
-    public int getSensorMassage(String deviceID) {
-        return mDeviceRepository.getSensorMassage(deviceID);
-    }
-
-    @Override
-    public String getLocalDeviceUUID() {
-        return mDeviceRepository.getLocalDeviceUUID();
-    }
-
-    @Override
-    public String getSystemTimeStamp() {
-        return mDeviceRepository.getSystemTimeStamp();
-    }
-}

app/src/main/java/com/example/greenwatch/viewmodels/ViewModelInterface.java

@@ -1,27 +0,0 @@
-package com.example.greenwatch.viewmodels;
-
-import androidx.lifecycle.LiveData;
-
-import com.example.greenwatch.models.Device;
-
-import java.util.List;
-
-public interface ViewModelInterface {
-    void init();
-    LiveData<List<Device>> getConnectedDeviceList();
-    LiveData<List<Device>> getAlarmHistoryList();
-    LiveData<Boolean> getStartAlarmRecording();
-    void updateDevice(String deviceID, String timeStamp, boolean sensorStatus, String sensorType, int sensorMassage);
-    void setTimeStamp(String deviceID, String timeStamp);
-    String getTimeStamp(String deviceID);
-    void setDeviceID(String deviceID, String newDeviceID);
-    String getDeviceID(String deviceID);
-    void setSensorStatus(String deviceID, boolean sensorStatus);
-    boolean getSensorStatus(String deviceID);
-    void setSensorType(String deviceID, String sensorType);
-    String getSensorType(String deviceID);
-    void setSensorMassage(String deviceID, int sensorMessage);
-    int getSensorMassage(String deviceID);
-    String getLocalDeviceUUID();
-    String getSystemTimeStamp();
-}

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

@@ -1,62 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:padding="10dp"
-    tools:context=".AccelerometerActivity">
-
-    <TextView
-        android:id="@+id/tvAccelerometerStatusmessage"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="">
-    </TextView>
-
-    <TextView
-        android:id="@+id/tvAccelerometerData"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="">
-    </TextView>
-
-    <TextView
-        android:id="@+id/tvAccelerometerWarning"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="">
-    </TextView>
-
-    <Button
-        android:id="@+id/accelerometerBackToMainActivity"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Back to MainActivity">
-    </Button>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical">
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/deviceListRecyclerView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            tools:listitem="@layout/device_item"
-            android:layout_weight="1">
-        </androidx.recyclerview.widget.RecyclerView>
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/alarmHistoryListRecyclerView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            tools:listitem="@layout/alarm_history_item"
-            android:layout_weight="1">
-        </androidx.recyclerview.widget.RecyclerView>
-
-    </LinearLayout>
-
-</LinearLayout>

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

@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:padding="10dp"
-    tools:context=".AudiodetectionActivity">
-
-    <TextView
-        android:id="@+id/tvAudiodetectionStatusmessage"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Audiodetection Activity">
-    </TextView>
-
-    <Button
-        android:id="@+id/audiodetectorBackToMainActivity"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Back to MainActivity">
-    </Button>
-
-</LinearLayout>

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

@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:padding="10dp"
-    tools:context=".AudiodetectionAndAccelerometerActivity">
-
-    <TextView
-        android:id="@+id/tvAudiodetectionAndAccelerometerStatusmessage"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Audiodetection + Accelerometer Activity">
-    </TextView>
-
-    <Button
-        android:id="@+id/audiodetectionAndAccelerometerBackToMainActivity"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Back to MainActivity">
-    </Button>
-
-</LinearLayout>

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

@@ -1,83 +1,31 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:padding="10dp"
     tools:context=".MainActivity">
 
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/alarmHistoryListRecyclerView"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_weight="3"
-        tools:listitem="@layout/alarm_history_item">
-    </androidx.recyclerview.widget.RecyclerView>
-
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/deviceListRecyclerView"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_weight="3"
-        tools:listitem="@layout/device_item">
-    </androidx.recyclerview.widget.RecyclerView>
-    
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical"
-        android:layout_weight="3">
+    <TextureView
+        android:id="@+id/textureView"
+        android:layout_width="1sp"
+        android:layout_height="1sp"
+        android:visibility="visible"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="1.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/button"
+        app:layout_constraintVertical_bias="0.0" />
 
     <Button
-            android:id="@+id/audiodetectionButton"
-            android:layout_width="match_parent"
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:text="Audiodetection">
-        </Button>
+        android:layout_marginEnd="339dp"
+        android:text="Record Video"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"/>
 
-        <Button
-            android:id="@+id/videodetectionButton"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:text="Videodetection">
-        </Button>
-
-        <Button
-            android:id="@+id/accelerometerButton"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:text="Accelerometer">
-        </Button>
-
-        <Button
-            android:id="@+id/audiodetectionAndAccelerometerButton"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:text="Audiodetection + Accelerometer">
-        </Button>
-
-        <Button
-            android:id="@+id/videodetectionAndAccelerometerButton"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:text="Videodetection + Accelerometer">
-        </Button>
-
-        <Button
-            android:id="@+id/connectionButton"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:text="Connect to Devices">
-        </Button>
-
-    </LinearLayout>
-
-</LinearLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,48 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:padding="10dp"
-    tools:context=".VideodetectionActivity">
-
-    <TextView
-        android:id="@+id/tvVideodetectionStatusmessage"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Videodetection Activity">
-    </TextView>
-
-    <Button
-        android:id="@+id/videodetectorBackToMainActivity"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Back to MainActivity">
-    </Button>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical">
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/deviceListRecyclerView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            tools:listitem="@layout/device_item"
-            android:layout_weight="1">
-        </androidx.recyclerview.widget.RecyclerView>
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/alarmHistoryListRecyclerView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            tools:listitem="@layout/alarm_history_item"
-            android:layout_weight="1">
-        </androidx.recyclerview.widget.RecyclerView>
-
-    </LinearLayout>
-
-</LinearLayout>

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

@@ -1,62 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:padding="10dp"
-    tools:context=".VideodetectionAndAccelerometerActivity">
-
-    <TextView
-        android:id="@+id/tvvideodetectionAndAccelerometerStatusmessage"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="">
-    </TextView>
-
-    <TextView
-        android:id="@+id/tvvideodetectionAndAccelerometerData"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="">
-    </TextView>
-
-    <TextView
-        android:id="@+id/tvvideodetectionAndAccelerometerWarning"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="">
-    </TextView>
-
-    <Button
-        android:id="@+id/videodetectionAndAccelerometerBackToMainActivity"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="Back to MainActivity">
-    </Button>
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical">
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/deviceListRecyclerView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            tools:listitem="@layout/device_item"
-            android:layout_weight="1">
-        </androidx.recyclerview.widget.RecyclerView>
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/alarmHistoryListRecyclerView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            tools:listitem="@layout/alarm_history_item"
-            android:layout_weight="1">
-        </androidx.recyclerview.widget.RecyclerView>
-
-    </LinearLayout>
-
-</LinearLayout>

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

@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_marginEnd="8dp"
-    android:layout_marginStart="8dp"
-    android:layout_marginTop="8dp">
-
-    <RelativeLayout
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:padding="8dp">
-
-        <TextView
-            android:id="@+id/tvAlarmHistoryDeviceSensorType"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/sensor_type_placeholder"
-            android:textAppearance="@style/TextAppearance.AppCompat.Large"
-            android:maxLines="1"
-            android:layout_alignParentStart="true"
-            android:ellipsize="end">
-        </TextView>
-
-        <TextView
-            android:id="@+id/tvAlarmHistoryDeviceID"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tvAlarmHistoryDeviceSensorType"
-            android:text="@string/deviceID_placeholder">
-        </TextView>
-
-        <TextView
-            android:id="@+id/tvAlarmHistoryDeviceTimeStamp"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tvAlarmHistoryDeviceID"
-            android:text="@string/sensor_time_stamp_placeholder">
-        </TextView>
-
-        <TextView
-            android:id="@+id/tvAlarmHistoryDeviceSensorMassage"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tvAlarmHistoryDeviceTimeStamp"
-            android:text="@string/sensor_message_placeholder">
-        </TextView>
-
-    </RelativeLayout>
-
-</androidx.cardview.widget.CardView>

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

@@ -1,61 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:layout_marginEnd="8dp"
-    android:layout_marginStart="8dp"
-    android:layout_marginTop="8dp">
-    
-    <RelativeLayout
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:padding="8dp">
-        
-        <TextView
-            android:id="@+id/tvDeviceSensorStatus"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_alignParentEnd="true"
-            android:text="@string/sensor_status_placeholder"
-            android:textAppearance="@style/TextAppearance.AppCompat.Large">
-        </TextView>
-
-        <TextView
-            android:id="@+id/tvDeviceSensorType"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/sensor_type_placeholder"
-            android:textAppearance="@style/TextAppearance.AppCompat.Large"
-            android:maxLines="1"
-            android:layout_toStartOf="@id/tvDeviceSensorStatus"
-            android:layout_alignParentStart="true"
-            android:ellipsize="end">
-        </TextView>
-
-        <TextView
-            android:id="@+id/tvDeviceID"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tvDeviceSensorType"
-            android:text="@string/deviceID_placeholder">
-        </TextView>
-
-        <TextView
-            android:id="@+id/tvDeviceTimeStamp"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tvDeviceID"
-            android:text="@string/sensor_time_stamp_placeholder">
-        </TextView>
-
-        <TextView
-            android:id="@+id/tvDeviceSensorMassage"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_below="@id/tvDeviceTimeStamp"
-            android:text="@string/sensor_message_placeholder">
-        </TextView>
-
-    </RelativeLayout>
-
-</androidx.cardview.widget.CardView>

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

@@ -1,8 +1,3 @@
 <resources>
     <string name="app_name">GreenWatch</string>
-    <string name="sensor_type_placeholder">Sensortyp: %s</string>
-    <string name="sensor_status_placeholder">Sensorstatus: %s</string>
-    <string name="deviceID_placeholder">Sensor-ID: %s</string>
-    <string name="sensor_time_stamp_placeholder">Timestamp: %s</string>
-    <string name="sensor_message_placeholder">Sensormessage: %d</string>
 </resources>