added Beschleunigungssensor

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

@@ -0,0 +1,86 @@
+package com.example.ueberwachungssystem;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.os.Bundle;
+import androidx.appcompat.app.AppCompatActivity;
+import android.widget.TextView;
+import com.example.ueberwachungssystem.Logger;
+
+public class Beschleunigungssensor extends AppCompatActivity implements SensorEventListener
+{
+
+    private Logger logger;
+    private SensorManager sensorManager;
+    private int sensorType = Sensor.TYPE_ACCELEROMETER;
+    private Sensor sensor;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState)
+    {
+        super.onCreate(savedInstanceState);
+        setTitle(this.getClass().getSimpleName());
+        TextView textView = new TextView(this);
+        setContentView(textView);
+
+        logger = new Logger(this.getClass().getSimpleName(),textView,"");
+
+        sensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
+        if(sensorManager.getSensorList(sensorType).size()==0)
+        {
+            logger.log("Es gibt den gewünschten Sensor nicht");
+            sensor = null;
+        }
+        else
+        {
+            sensor = sensorManager.getSensorList(sensorType).get(0);
+        }
+    }
+
+    @Override
+    protected void onResume()
+    {
+        super.onResume();
+        if(sensor != null)
+        {
+            if(sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_GAME))
+            {
+                logger.log("Wir haben uns beim Sensor angemeldet.");
+            }
+            else
+            {
+                logger.log("Das Anmelden beim Sensor hat nicht so gut geklappt");
+            }
+        }
+    }
+
+    @Override
+    protected void onPause()
+    {
+        super.onPause();
+        if(sensor != null) {
+            sensorManager.unregisterListener(this, sensor);
+            logger.log("Wir haben uns beim Sensor abgemeldet");
+        }
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event)
+    {
+        StringBuilder sb = new StringBuilder();
+        sb.append("t=").append(event.timestamp)
+                .append("\nx=").append(event.values[0])
+                .append("\ny=").append(event.values[1])
+                .append("\nz=").append(event.values[2]);
+        logger.clearLog();
+        logger.log(sb.toString());
+    }
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy)
+    {
+    }
+}