Beschleunigungssensor: Kommentar mit shared Preferences

app/build.gradle

@@ -25,7 +25,6 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
-    namespace 'com.example.greenwatch'
 }
 
 dependencies {
@@ -36,10 +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

@@ -1,15 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-
+    package="com.example.greenwatch">
-    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
-    <uses-permission android:name="android.permission.CAMERA"/>
-    <uses-permission android:name="android.permission.BLUETOOTH"/>
-    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
-    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-    <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-
-    <uses-feature android:name="android.hardware.camera"/>
 
     <application
         android:allowBackup="true"
@@ -18,6 +9,9 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.GreenWatch">
+        <activity
+            android:name=".Beschleunigungssensor"
+            android:exported="false" />
         <activity
             android:name=".MainActivity"
             android:exported="true">
@@ -27,10 +21,6 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-
-        <activity android:name=".KameraAktivitaet" />
-        <activity android:name=".Kamera_Beschleunigungssensor" />
-
     </application>
 
 </manifest>

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

@@ -1,4 +1,188 @@
 package com.example.greenwatch;
 
-public class Beschleunigungssensor {
+
-}
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.os.Bundle;
+import android.widget.TextView;
+
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+
+public class Beschleunigungssensor extends AppCompatActivity implements SensorEventListener{
+
+    private SensorManager bsmanager;
+    private ArrayList<Float> Gesamt_be;
+    private int sensorType = Sensor.TYPE_GYROSCOPE, zaehler_runde =0, listen_groesse = 500, kalibrieren, Offset_shared = 0, shared_merk, mittelwertsumme_shared;
+    private Sensor sens, sensor_l;
+    private float x_value = 0, y_value, z_value, Vorbesetzung = 0, gesamt_runde =0;
+    private double Schwellwert = 0.15, mittelwertsumme = 0.0, Offset = 0.1;
+    String Daten, Warnung, Zeitstempel, Array_shared;
+    private final static String KEY_kalibirieren = "KEY_KALIBRIEREN_"+Beschleunigungssensor.class.getSimpleName();
+    private final static String KEY_Gesamt_be = "KEY_GESAMT_BE_"+Beschleunigungssensor.class.getSimpleName();
+    private final static String KEY_Offset = "KEY_OFFSET_"+Beschleunigungssensor.class.getSimpleName();
+    private final static String KEY_Mittelwertsumme = "KEY_MITTELWERTSUMME_"+Beschleunigungssensor.class.getSimpleName();
+    TextView Daten_Bsensor, Warnung_Bsensor, test;
+    private boolean toggle = true, ts_setzen = true, start_messen;
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_beschleunigungssensor);
+
+        Daten_Bsensor = (TextView) findViewById(R.id.DatenBsensor);
+        Warnung_Bsensor = (TextView) findViewById(R.id.WarnungBsensor);
+        test = (TextView) findViewById(R.id.test);
+
+        bsmanager = (SensorManager) getSystemService(SENSOR_SERVICE);
+        if (bsmanager.getSensorList(Sensor.TYPE_GYROSCOPE).size() == 0) {
+            sens = null;
+            Daten = "kein B Sensor voranden";
+        } else {
+            sens = bsmanager.getSensorList(sensorType).get(0);
+        }
+        Gesamt_be = new ArrayList<Float>();
+        for (int i = 0; i < listen_groesse ; i++){
+            Gesamt_be.add(Vorbesetzung);
+        }
+        kalibrieren = 0;
+        start_messen = false;
+    }
+
+    public static String getTimestamp(){
+        Long tslong = System.currentTimeMillis();
+        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
+        Date date = new Date(tslong);
+        String result = sdf.format(date);
+
+        return result;
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event) {
+        StringBuilder sb = new StringBuilder();
+        sb.append("x=").append(event.values[0])//.append(event.timestamp)
+                .append("\ny=").append(event.values[1])
+                .append("\nz=").append(event.values[2]);
+        Daten = sb.toString();
+        Daten_Bsensor.setText(Daten);
+        gesamt_runde = event.values[0] + event.values[1] + event.values[2];
+        Gesamt_be.remove(zaehler_runde);
+        Gesamt_be.add(zaehler_runde, gesamt_runde);
+        mittelwertsumme = 0.0;
+
+        //Mittelwert des Arrays berechnen
+        for (int i = 0; i < listen_groesse; i++){
+            if (Gesamt_be.get(i) < 0){
+                mittelwertsumme += (Gesamt_be.get(i) * (-1));
+            }else {
+                mittelwertsumme += Gesamt_be.get(i);
+            }
+        }
+        mittelwertsumme = mittelwertsumme/listen_groesse;
+        if (kalibrieren < listen_groesse){
+            Offset = mittelwertsumme;
+            kalibrieren++;
+        }else {
+            start_messen = true;
+        }
+        StringBuilder testsb = new StringBuilder();
+        testsb.append(mittelwertsumme);
+        String tests = testsb.toString();
+        test.setText(tests);
+
+        if((mittelwertsumme > (Schwellwert+Offset) ) & (ts_setzen == true) &(start_messen == true)){
+            Zeitstempel = getTimestamp();
+            StringBuilder ts = new StringBuilder();
+            ts.append(Zeitstempel)
+                    .append(", Gruppe3")
+                    .append(", An")
+                    .append(", Bewegung, ")
+                    .append(mittelwertsumme);
+            Warnung = ts.toString();
+            Warnung_Bsensor.setText(Warnung);
+            ts_setzen = false;
+        }else if((mittelwertsumme > (Schwellwert+Offset)) & (ts_setzen == false)){
+        } else if ((mittelwertsumme < (Schwellwert+Offset)) & (ts_setzen == false)) {
+            Warnung_Bsensor.setText("");
+            ts_setzen = true;
+        }
+
+        if (zaehler_runde < (listen_groesse -1)){
+            zaehler_runde++;
+        }else {
+            zaehler_runde = 0;
+        }
+    }
+    //mittelwertsumme ist kein int in diesem programm
+    //shared prefenrences: bei Kippen speichern -> nochmal neu klalibrieren? -> eig ja, weil neuer Standort
+    //Vorbelegung nicht nochmal neu vornehmen -> aus onCreate Funktion raus -> hilfsvariablen auch in shared preferences speichern
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {}
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        if (sens != null) {
+            if (bsmanager.registerListener(this, sens, SensorManager.SENSOR_DELAY_GAME)) {
+                Daten = "Wir haben uns beim Sensor angemeldet";
+            } else {
+                Daten = "Das anmelden hat nicht geklappt";
+            }
+        }
+        //SharedPreferences p = getPreferences(Context.MODE_PRIVATE);
+        //mittelwertsumme_shared = p.getInt(KEY_Mittelwertsumme, 0);
+        //kalibrieren = p.getInt(KEY_kalibirieren, 0);
+        //Offset_shared = p.getInt(KEY_Offset, 0 );
+        //Array_shared = p.getString(KEY_Gesamt_be, "");
+
+        //mittelwertsumme = (double) mittelwertsumme_shared;
+        //mittelwertsumme /= 1000000.0;
+
+        //Offset = (double) Offset_shared;
+        //Offset /= 1000000.0;
+
+        //String zw[] = Array_shared.split(";", listen_groesse);
+
+        //if(shared_merk == 2){
+        //for (int i=0; i<listen_groesse; i++){
+        //float wert = Float.valueOf(zw[i]);
+        //Gesamt_be.add(i, wert);
+        //}}
+
+        }
+
+
+        @Override
+        protected void onPause () {
+            super.onPause();
+            if (sens != null) {
+                bsmanager.unregisterListener(this, sens);
+            }
+            //shared_merk = 2;
+            // Offset_shared = (int) (Offset * 1000000.0);
+            //mittelwertsumme_shared = (int) (mittelwertsumme * 1000000.0);
+
+            //StringBuilder ar = new StringBuilder();
+            //for (int z=0; z < listen_groesse; z++){
+            //ar.append(Gesamt_be.get(z)).append(";");
+            //}
+            //Array_shared = ar.toString();
+
+            //SharedPreferences p = getPreferences(Context.MODE_PRIVATE);
+            //SharedPreferences.Editor editor = p.edit();
+            //editor.putInt(KEY_Mittelwertsumme, mittelwertsumme_shared);
+            //editor.putInt(KEY_kalibirieren, kalibrieren);
+            //editor.putInt(KEY_Offset, Offset_shared);
+            //editor.putString(KEY_Gesamt_be, Array_shared);
+            //editor.commit();
+        }
+    }

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

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

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

@@ -1,205 +0,0 @@
-package com.example.greenwatch;
-
-import android.graphics.ImageFormat;
-import android.media.Image;
-import android.os.Bundle;
-import android.os.Handler;
-import android.util.Size;
-
-import android.widget.TextView;
-
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.camera.core.CameraSelector;
-import androidx.camera.core.ImageAnalysis;
-import androidx.camera.lifecycle.ProcessCameraProvider;
-// PREVIEW
-//import androidx.camera.view.PreviewView;
-import androidx.core.content.ContextCompat;
-
-import com.google.common.util.concurrent.ListenableFuture;
-
-import java.nio.ByteBuffer;
-import java.util.concurrent.ExecutionException;
-
-public class KameraAktivitaet extends AppCompatActivity {
-
-    // PREVIEW
-    // private PreviewView previewView;
-    private boolean isMotionDetected;
-    private boolean camera_alarm = false;
-    private TextView alarm;
-
-    // Bildverarbeitung Variablen
-    private ByteBuffer previousBuffer;
-    private int previousWidth;
-    private int previousHeight;
-    private final int threshold = 50;
-    private int startX;
-    private int startY;
-    private int endX;
-    private int endY;
-
-    private static final long ALARM_RESET_DELAY = 5000;
-    private Runnable alarmResetRunnable;
-    private final Handler alarmResetHandler = new Handler();
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
-
-        // NUR FÜR TESTS
-        alarm = findViewById(R.id.textView);
-
-        // previewView = findViewById(R.id.previewView);
-
-        final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
-        cameraProviderFuture.addListener(() -> {
-            try {
-                bindImageAnalysis(cameraProviderFuture.get());
-            } catch (ExecutionException | InterruptedException e) {
-                e.printStackTrace();
-            }
-        }, ContextCompat.getMainExecutor(this));
-    }
-
-    private void bindImageAnalysis(ProcessCameraProvider cameraProvider) {
-        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(this),
-                imageProxy -> {
-
-                    int imageFormat = imageProxy.getFormat();
-
-                    if (imageFormat == ImageFormat.YUV_420_888) {
-
-                        Image currentImage = imageProxy.getImage();
-
-                        if (previousHeight != 0) {
-                            assert currentImage != null;
-                            isMotionDetected = 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();
-
-                        if (isMotionDetected) {
-
-                            alarm.setText("ALARM");
-                            camera_alarm = true;
-
-                            if(alarmResetRunnable != null) {
-                                alarmResetHandler.removeCallbacks(alarmResetRunnable);
-                            }
-
-                            alarmResetRunnable = this::resetAlarmStatus;
-                            alarmResetHandler.postDelayed(alarmResetRunnable, ALARM_RESET_DELAY);
-                        }
-                    }
-
-                    imageProxy.close();
-                });
-
-        // Preview preview = new Preview.Builder().build();
-
-        CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
-
-        // PREVIEW //
-        // preview.setSurfaceProvider(previewView.getSurfaceProvider());
-
-        cameraProvider.bindToLifecycle(this, cameraSelector, imageAnalysis);
-
-    }
-
-    // Bildverarbeitung zur Bewegungserkennung
-    private boolean compareFrames(Image currentImage) {
-        Image.Plane[] planes = currentImage.getPlanes();
-        ByteBuffer currentBuffer = planes[0].getBuffer();
-        int currentWidth = currentImage.getWidth();
-        int currentHeight = currentImage.getHeight();
-        int yRowStride = planes[0].getRowStride();
-        int yPixelStride = planes[0].getPixelStride();
-
-
-        //System.out.println("Höhe: " + currentHeight + "   Breite: " + currentWidth);
-
-        if (previousWidth != currentWidth || previousHeight != currentHeight) {
-            return false;
-        }
-
-        // Blöcke weiter verkleinern
-        int blockSize = kleinstesQuadrat(previousHeight, previousWidth) / 8;
-
-        //System.out.println(blockSize);
-
-        int numBlocksX = currentWidth / blockSize;
-        int numBlocksY = currentHeight / blockSize;
-
-        for (int blockY = 0; blockY < numBlocksY; blockY++) {
-            for (int blockX = 0; blockX < numBlocksX; blockX++) {
-                startX = blockX * blockSize;
-                startY = blockY * blockSize;
-                endX = startX + blockSize;
-                endY = startY + blockSize;
-
-                float currentLuminance = berechneMittlereLuminanz(currentBuffer, yRowStride, yPixelStride);
-                float previousLuminance = berechneMittlereLuminanz(previousBuffer, yRowStride, yPixelStride);
-
-                int pixelDifference = Math.abs((int) previousLuminance - (int) currentLuminance);
-
-                //System.out.println(pixelDifference);
-
-                if (pixelDifference > threshold) {
-                    System.out.println(pixelDifference);
-                    return true;
-                }
-            }
-        }
-
-        return false;
-    }
-
-    private float berechneMittlereLuminanz(ByteBuffer buffer, int rowStride, int pixelStride) {
-        int sumLuminance = 0;
-        int countPixels = 0;
-
-        for (int row = startY; row < endY; row++) {
-            for (int col = startX; col < endX; col++) {
-                int bufferIndex = row * rowStride + col * pixelStride;
-                int currentPixel = buffer.get(bufferIndex) & 0xFF;
-
-                sumLuminance += currentPixel;
-                countPixels++;
-            }
-        }
-
-        return (float) sumLuminance / countPixels;
-    }
-
-    private int kleinstesQuadrat(int height, int width) {
-        if (height == width) {
-            return height;
-        } else if (height > width) {
-            return kleinstesQuadrat(height - width, width);
-        } else {
-            return kleinstesQuadrat(height, width - height);
-        }
-    }
-
-    private void resetAlarmStatus() {
-        camera_alarm = false;
-        alarm.setText("OK");
-        alarmResetRunnable = null;
-    }
-}
-

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

@@ -1,320 +0,0 @@
-package com.example.greenwatch;
-
-import android.graphics.ImageFormat;
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
-import android.media.Image;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.HandlerThread;
-import android.os.Looper;
-import android.util.Size;
-
-import android.widget.TextView;
-
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.camera.core.CameraSelector;
-import androidx.camera.core.ImageAnalysis;
-import androidx.camera.lifecycle.ProcessCameraProvider;
-// PREVIEW
-//import androidx.camera.view.PreviewView;
-import androidx.core.content.ContextCompat;
-
-import com.google.common.util.concurrent.ListenableFuture;
-
-import java.nio.ByteBuffer;
-import java.text.SimpleDateFormat;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executor;
-
-public class Kamera_Beschleunigungssensor extends AppCompatActivity implements SensorEventListener {
-
-    private HandlerThread cameraThread;
-    private Handler cameraHandler;
-    // PREVIEW
-    // private PreviewView previewView;
-    private boolean isMotionDetected;
-    private boolean camera_alarm;
-    private TextView alarm;
-    private ByteBuffer previousBuffer;
-    private int previousWidth;
-    private int previousHeight;
-
-    /////////////////////////////////////
-
-    private SensorManager bsmanager;
-    private ArrayList<Float> Gesamt_be;
-    private int sensorType = Sensor.TYPE_GYROSCOPE, zaehler_runde =0, listen_groesse = 500, kalibrieren, Offset_shared = 0, shared_merk, mittelwertsumme_shared;
-    private Sensor sens, sensor_l;
-    private float x_value = 0, y_value, z_value, Vorbesetzung = 0, gesamt_runde =0;
-    private double Schwellwert = 0.15, mittelwertsumme = 0.0, Offset = 0.1;
-    String Daten, Warnung, Zeitstempel, Array_shared;
-    private final static String KEY_kalibirieren = "KEY_KALIBRIEREN_"+Beschleunigungssensor.class.getSimpleName();
-    private final static String KEY_Gesamt_be = "KEY_GESAMT_BE_"+Beschleunigungssensor.class.getSimpleName();
-    private final static String KEY_Offset = "KEY_OFFSET_"+Beschleunigungssensor.class.getSimpleName();
-    private final static String KEY_Mittelwertsumme = "KEY_MITTELWERTSUMME_"+Beschleunigungssensor.class.getSimpleName();
-    TextView Daten_Bsensor, Warnung_Bsensor, test;
-    private boolean toggle = true, ts_setzen = true, start_messen;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_beschleunigung_kamera);
-        ////////
-        Daten_Bsensor = (TextView) findViewById(R.id.DatenBsensor);
-        Warnung_Bsensor = (TextView) findViewById(R.id.WarnungBsensor);
-        test = (TextView) findViewById(R.id.test);
-
-        bsmanager = (SensorManager) getSystemService(SENSOR_SERVICE);
-        if (bsmanager.getSensorList(Sensor.TYPE_GYROSCOPE).size() == 0) {
-            sens = null;
-            Daten = "kein B Sensor voranden";
-        } else {
-            sens = bsmanager.getSensorList(sensorType).get(0);
-        }
-        Gesamt_be = new ArrayList<Float>();
-        for (int i = 0; i < listen_groesse ; i++){
-            Gesamt_be.add(Vorbesetzung);
-        }
-        kalibrieren = 0;
-        start_messen = false;
-
-        ///////
-        // NUR FÜR TESTS
-        alarm = findViewById(R.id.Alarm_Kamera);
-
-        // PREVIEW //
-        // previewView = findViewById(R.id.previewView);
-
-        final ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
-        cameraProviderFuture.addListener(() -> {
-            try {
-                bindImageAnalysis(cameraProviderFuture.get());
-            } catch (ExecutionException | InterruptedException e) {
-                e.printStackTrace();
-            }
-        }, ContextCompat.getMainExecutor(this));
-    }
-
-    public static String getTimestamp(){
-        Long tslong = System.currentTimeMillis();
-        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
-        Date date = new Date(tslong);
-        String result = sdf.format(date);
-
-        return result;
-    }
-
-    @Override
-    public void onSensorChanged(SensorEvent event) {
-        StringBuilder sb = new StringBuilder();
-        sb.append("x=").append(event.values[0])//.append(event.timestamp)
-                .append("\ny=").append(event.values[1])
-                .append("\nz=").append(event.values[2]);
-        Daten = sb.toString();
-        Daten_Bsensor.setText(Daten);
-        gesamt_runde = event.values[0] + event.values[1] + event.values[2];
-        Gesamt_be.remove(zaehler_runde);
-        Gesamt_be.add(zaehler_runde, gesamt_runde);
-        mittelwertsumme = 0.0;
-
-        //Mittelwert des Arrays berechnen
-        for (int i = 0; i < listen_groesse; i++){
-            if (Gesamt_be.get(i) < 0){
-                mittelwertsumme += (Gesamt_be.get(i) * (-1));
-            }else {
-                mittelwertsumme += Gesamt_be.get(i);
-            }
-        }
-        mittelwertsumme = mittelwertsumme/listen_groesse;
-        if (kalibrieren < listen_groesse){
-            Offset = mittelwertsumme;
-            kalibrieren++;
-        }else {
-            start_messen = true;
-        }
-        StringBuilder testsb = new StringBuilder();
-        testsb.append(mittelwertsumme);
-        String tests = testsb.toString();
-        test.setText(tests);
-
-        if((mittelwertsumme > (Schwellwert+Offset) ) & (ts_setzen == true) &(start_messen == true)){
-            Zeitstempel = getTimestamp();
-            StringBuilder ts = new StringBuilder();
-            ts.append(Zeitstempel)
-                    .append(", Gruppe3")
-                    .append(", An")
-                    .append(", Bewegung, ")
-                    .append(mittelwertsumme);
-            Warnung = ts.toString();
-            Warnung_Bsensor.setText(Warnung);
-            ts_setzen = false;
-        }else if((mittelwertsumme > (Schwellwert+Offset)) & (ts_setzen == false)){
-        } else if ((mittelwertsumme < (Schwellwert+Offset)) & (ts_setzen == false)) {
-            Warnung_Bsensor.setText("");
-            ts_setzen = true;
-        }
-
-        if (zaehler_runde < (listen_groesse -1)){
-            zaehler_runde++;
-        }else {
-            zaehler_runde = 0;
-        }
-    }
-    //mittelwertsumme ist kein int in diesem programm
-    //shared prefenrences: bei Kippen speichern -> nochmal neu klalibrieren? -> eig ja, weil neuer Standort
-    //Vorbelegung nicht nochmal neu vornehmen -> aus onCreate Funktion raus -> hilfsvariablen auch in shared preferences speichern
-    @Override
-    public void onAccuracyChanged(Sensor sensor, int accuracy) {}
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-        if (sens != null) {
-            if (bsmanager.registerListener(this, sens, SensorManager.SENSOR_DELAY_GAME)) {
-                Daten = "Wir haben uns beim Sensor angemeldet";
-            } else {
-                Daten = "Das anmelden hat nicht geklappt";
-            }
-        }
-        //SharedPreferences p = getPreferences(Context.MODE_PRIVATE);
-        //mittelwertsumme_shared = p.getInt(KEY_Mittelwertsumme, 0);
-        //kalibrieren = p.getInt(KEY_kalibirieren, 0);
-        //Offset_shared = p.getInt(KEY_Offset, 0 );
-        //Array_shared = p.getString(KEY_Gesamt_be, "");
-
-        //mittelwertsumme = (double) mittelwertsumme_shared;
-        //mittelwertsumme /= 1000000.0;
-
-        //Offset = (double) Offset_shared;
-        //Offset /= 1000000.0;
-
-        //String zw[] = Array_shared.split(";", listen_groesse);
-
-        //if(shared_merk == 2){
-        //for (int i=0; i<listen_groesse; i++){
-        //float wert = Float.valueOf(zw[i]);
-        //Gesamt_be.add(i, wert);
-        //}}
-
-    }
-
-
-    @Override
-    protected void onPause () {
-        super.onPause();
-        if (sens != null) {
-            bsmanager.unregisterListener(this, sens);
-        }
-        //shared_merk = 2;
-        // Offset_shared = (int) (Offset * 1000000.0);
-        //mittelwertsumme_shared = (int) (mittelwertsumme * 1000000.0);
-
-        //StringBuilder ar = new StringBuilder();
-        //for (int z=0; z < listen_groesse; z++){
-        //ar.append(Gesamt_be.get(z)).append(";");
-        //}
-        //Array_shared = ar.toString();
-
-        //SharedPreferences p = getPreferences(Context.MODE_PRIVATE);
-        //SharedPreferences.Editor editor = p.edit();
-        //editor.putInt(KEY_Mittelwertsumme, mittelwertsumme_shared);
-        //editor.putInt(KEY_kalibirieren, kalibrieren);
-        //editor.putInt(KEY_Offset, Offset_shared);
-        //editor.putString(KEY_Gesamt_be, Array_shared);
-        //editor.commit();
-    }
-
-    // KAMERA //
-    private void bindImageAnalysis(ProcessCameraProvider cameraProvider) {
-        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(this),
-                imageProxy -> {
-
-                    int imageFormat = imageProxy.getFormat();
-
-                    if (imageFormat == ImageFormat.YUV_420_888) {
-
-                        Image currentImage = imageProxy.getImage();
-
-                        if (previousHeight != 0) {
-                            assert currentImage != null;
-                            isMotionDetected = 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();
-
-                        if (isMotionDetected) {
-                            alarm.setText("ALARM");
-                            camera_alarm = true;
-                        } else {
-                            camera_alarm = false;
-                            alarm.setText("OK");
-                        }
-
-                    }
-
-                    imageProxy.close();
-                });
-
-        // Preview preview = new Preview.Builder().build();
-
-        CameraSelector cameraSelector = new CameraSelector.Builder().requireLensFacing(CameraSelector.LENS_FACING_BACK).build();
-
-        // PREVIEW //
-        // preview.setSurfaceProvider(previewView.getSurfaceProvider());
-
-        cameraProvider.bindToLifecycle(this, cameraSelector, imageAnalysis);
-
-    }
-
-    // Bildverarbeitung zur Bewegungserkennung
-    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) {
-                    // Testzwecke
-                    //String text = String.valueOf(pixelDifference);
-                    return true;
-                }
-            }
-        }
-        return false;
-    }
-}

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

@@ -1,40 +1,41 @@
 package com.example.greenwatch;
 
+import androidx.appcompat.app.AppCompatActivity;
+
+
 import android.content.Intent;
-import android.content.pm.PackageManager;
 import android.os.Bundle;
+import android.view.View;
 import android.widget.Button;
 
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.core.app.ActivityCompat;
-import androidx.core.content.ContextCompat;
 
 public class MainActivity extends AppCompatActivity {
-    private static final int RECHTEANFORDERUNG_KAMERA = 10;
+
+    private Button Beschleunigungssensor;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-        Button kameraStarten = findViewById(R.id.button_camera);
+
-        kameraStarten.setOnClickListener(v -> {
+        final Button Beschleunigungssensor = (Button) findViewById(R.id.beschleunigungssensor);
-            if (istZugriffAufKameraErlaubt()) {
+        Beschleunigungssensor.setOnClickListener(new View.OnClickListener() {
-                starteKameraAktivitaet();
+            @Override
-            } else {
+            public void onClick(View v) {
-                zugriffAufKameraAnfordern();
+                Intent intent = new Intent(MainActivity.this, Beschleunigungssensor.class);
+                startActivity(intent);
             }
         });
     }
 
-    private boolean istZugriffAufKameraErlaubt() {
+    @Override
-        return ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED;
+    protected void onResume() {
+        super.onResume();
     }
 
-    private void zugriffAufKameraAnfordern() {
-        ActivityCompat.requestPermissions(this,new String[]{android.Manifest.permission.CAMERA}, RECHTEANFORDERUNG_KAMERA);
-    }
 
-    private void starteKameraAktivitaet() {
+    @Override
-        startActivity(new Intent(this, KameraAktivitaet.class));
+    protected void onPause() {
+        super.onPause();
     }
 }

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

@@ -28,11 +28,5 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:text="" />
-
-        <TextView
-            android:id="@+id/Alarm_Kamera"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="OK" />
     </LinearLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_demo_kamera2_nebenaktivitaet.xml

@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<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"
-    tools:context=".KameraAktivitaet">
-
-    <FrameLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:id="@+id/erklaerung">
-
-        <Button
-            android:id="@+id/button2"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="Button" />
-
-        <androidx.camera.view.PreviewView
-            android:id="@+id/previewView"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent">
-
-        </androidx.camera.view.PreviewView>
-    </FrameLayout>
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical">
-
-        <TextView
-            android:id="@+id/alarm"
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:layout_weight="1"
-            android:layout_gravity="center"
-            android:gravity="center"
-            android:text=""
-            android:textSize="100sp"
-            android:textColor="#9999ff"/>
-        <TextView
-            android:id="@+id/threshold_test"
-            android:layout_width="match_parent"
-            android:layout_height="0dp"
-            android:layout_weight="1"
-            android:layout_gravity="center"
-            android:gravity="center"
-            android:text=""
-            android:textSize="100sp"
-            android:textColor="#9999ff"/>
-    </LinearLayout>
-
-</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -6,39 +6,42 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <Button
+    <LinearLayout
-        android:id="@+id/button_camera"
+        android:layout_width="match_parent"
-        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
-        android:layout_height="wrap_content"
+        android:orientation="vertical">
-        android:text="Kamera starten"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.129"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.931" />
 
         <TextView
             android:id="@+id/textView"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-        android:text=" "
+            android:text="TextView"
-        app:layout_constraintBottom_toBottomOf="parent"
+            tools:layout_editor_absoluteX="171dp"
-        app:layout_constraintEnd_toEndOf="parent"
+            tools:layout_editor_absoluteY="186dp" />
-        app:layout_constraintHorizontal_bias="0.498"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.247" />
 
         <TextView
             android:id="@+id/textView2"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-        android:text="TextView"
+            android:text="TextView" />
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="@+id/textView" />
 
+        <Button
+            android:id="@+id/beschleunigungssensor"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Beschleunigungssensor" />
+
+        <Button
+            android:id="@+id/aufnahme"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Aufnahme Start" />
+
+        <Button
+            android:id="@+id/wiedergabe"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Wiedergabe" />
+    </LinearLayout>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

build.gradle

@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id 'com.android.application' version '8.0.0' apply false
+    id 'com.android.application' version '7.1.3' apply false
-    id 'com.android.library' version '8.0.0' apply false
+    id 'com.android.library' version '7.1.3' apply false
 }
 
 task clean(type: Delete) {

gradle.properties

@@ -19,5 +19,3 @@ android.useAndroidX=true
 # resources declared in the library itself and none from the library's dependencies,
 # thereby reducing the size of the R class for that library
 android.nonTransitiveRClass=true
-android.defaults.buildfeatures.buildconfig=true
-android.nonFinalResIds=false

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 #Thu May 11 14:50:16 CEST 2023
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME