Beschleunigungssensor: Kommentar mit shared Preferences

app/src/main/AndroidManifest.xml

@@ -2,13 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.greenwatch">
 
-    <uses-permission android:name="android.permission.INTERNET" />
-    <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"
         android:icon="@mipmap/ic_launcher"
@@ -16,6 +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">

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

@@ -1,225 +0,0 @@
-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

@@ -1,30 +0,0 @@
-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/Beschleunigungssensor.java

@@ -0,0 +1,188 @@
+package com.example.greenwatch;
+
+
+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/MainActivity.java

@@ -1,101 +1,41 @@
 package com.example.greenwatch;
 
-import android.Manifest;
-import android.content.pm.PackageManager;
-import android.graphics.SurfaceTexture;
+import androidx.appcompat.app.AppCompatActivity;
+
+
+import android.content.Intent;
 import android.os.Bundle;
-import android.view.TextureView;
 import android.view.View;
 import android.widget.Button;
-import android.widget.Toast;
 
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.core.app.ActivityCompat;
-import androidx.core.content.ContextCompat;
 
-public class MainActivity extends AppCompatActivity implements TextureView.SurfaceTextureListener{
+public class MainActivity extends AppCompatActivity {
 
-    private boolean isRecording = false;
-    private static final int REQUEST_PERMISSION = 200;
-    private Button button;
-    private TextureView textureView;
-    private AlarmRecorder alarmRecorder;
+    private Button Beschleunigungssensor;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        button = findViewById(R.id.button);
-        textureView = findViewById(R.id.textureView);
-        textureView.setSurfaceTextureListener(this);
-
-        button.setOnClickListener(new View.OnClickListener() {
+        final Button Beschleunigungssensor = (Button) findViewById(R.id.beschleunigungssensor);
+        Beschleunigungssensor.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                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();
-                    }
-                } else {
-                    isRecording = false;
-                    alarmRecorder.stopRecording();
-                }
+                Intent intent = new Intent(MainActivity.this, Beschleunigungssensor.class);
+                startActivity(intent);
             }
         });
     }
 
     @Override
-    public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
-        alarmRecorder = new AlarmRecorder(surfaceTexture);
+    protected void onResume() {
+        super.onResume();
     }
 
+
     @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();
-            }
-        }
+    protected void onPause() {
+        super.onPause();
     }
 }

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

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

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

@@ -1,39 +0,0 @@
-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/res/layout/activity_beschleunigungssensor.xml

@@ -0,0 +1,32 @@
+<?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=".Beschleunigungssensor">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/DatenBsensor"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="" />
+
+        <TextView
+            android:id="@+id/WarnungBsensor"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="" />
+
+        <TextView
+            android:id="@+id/test"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="" />
+    </LinearLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -6,26 +6,42 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <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" />
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
 
-    <Button
-        android:id="@+id/button"
+        <TextView
+            android:id="@+id/textView"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-        android:layout_marginEnd="339dp"
-        android:text="Record Video"
-        app:layout_constraintHorizontal_bias="0.5"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"/>
+            android:text="TextView"
+            tools:layout_editor_absoluteX="171dp"
+            tools:layout_editor_absoluteY="186dp" />
+
+        <TextView
+            android:id="@+id/textView2"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="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>