Beschleunigungssensor: Gyroscope und kalibrierung

app/src/main/AndroidManifest.xml

         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/Beschleunigungssensor.java

 package com.example.greenwatch;
 
-import android.content.Context;
+import androidx.appcompat.app.AppCompatActivity;
+
 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;
 
-public class Beschleunigungssensor extends AppCompatActivity implements SensorEventListener {
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+
+public class Beschleunigungssensor extends AppCompatActivity implements SensorEventListener{
 
     private SensorManager bsmanager;
-    private int sensorType = Sensor.TYPE_ACCELEROMETER;
-    private Sensor Beschleunigungssensor;
+    private ArrayList<Float> Gesamt_be;
+    private int sensorType = Sensor.TYPE_GYROSCOPE, zaehler_runde =0, listen_groesse = 10000;
+    private Sensor sens, sensor_l;
+    private float x_value = 0, y_value, z_value, Vorbesetzung = 0, gesamt_runde =0;
+    private double Schwellwert = 0.5, mittelwertsumme = 0.0, Offset;
+    String Daten, Warnung, Zeitstempel;
+    TextView Daten_Bsensor, Warnung_Bsensor, test;
+    private boolean toggle = true, ts_setzen = true, kalibrieren;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_beschleunigungssensor);
 
-    public Beschleunigungssensor() {
-        bsmanager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
-        if(bsmanager.getSensorList(sensorType).size()==0)
-        {
-            //logger.log("Es gibt den gewünschten Sensor
-            //nicht");
-            Beschleunigungssensor = null;
+        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);
         }
-        else
-        {
-            Beschleunigungssensor = bsmanager.getSensorList(sensorType).get(0);
+        Gesamt_be = new ArrayList<Float>();
+        for (int i = 0; i < listen_groesse; i++){
+            Gesamt_be.add(Vorbesetzung);
         }
+        kalibrieren = true;
     }
 
+    public static String getTimestamp(){
+        Long tslong = System.currentTimeMillis();
+        SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy, 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("t=").append(event.timestamp)
-                .append("\nx=").append(event.values[0])
+        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 == true){
+            Offset = mittelwertsumme;
+            kalibrieren = false;
+        }
+        mittelwertsumme = mittelwertsumme - Offset;
+        StringBuilder testsb = new StringBuilder();
+        testsb.append(mittelwertsumme);
+        String tests = testsb.toString();
+        test.setText(tests);
 
+        if((mittelwertsumme > Schwellwert ) & (ts_setzen == true)){
+            Zeitstempel = getTimestamp();
+            StringBuilder ts = new StringBuilder();
+            ts.append("Warnung: ")
+                    .append(Zeitstempel)
+                    .append("\n")
+                    .append(mittelwertsumme);
+            Warnung = ts.toString();
+            Warnung_Bsensor.setText(Warnung);
+            ts_setzen = false;
+        }else if((mittelwertsumme > Schwellwert) & (ts_setzen == false)){
+        } else if ((mittelwertsumme < Schwellwert) & (ts_setzen == false)) {
+            Warnung_Bsensor.setText("");
+            ts_setzen = true;
+        }
 
+        if (zaehler_runde < (listen_groesse -1)){
+            zaehler_runde++;
+        }else {
+            zaehler_runde = 0;
+        }
     }
-
+    //Einstellen um bei Pausen keine Werte zu speichern -> höhere Priorität auf großen Bewegungen
+    //Vektor verlängern um Pausen geringer zu gewichten
+    //Kalibrierung: Vektor einmal füllen -> Durchschnitt berechnen,
+    //bei Schwellwert Ruhe Erwartungswert abziehen
     @Override
     public void onAccuracyChanged(Sensor sensor, int accuracy) {}
-    // if Abfrage ob values sich verändert haben
-}
+
+    @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";
+            }
+        }
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        if (sens != null) {
+            bsmanager.unregisterListener(this, sens);
+        }
+    }
+}

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

 
 import androidx.appcompat.app.AppCompatActivity;
 
+
+import android.content.Intent;
 import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+
 
 public class MainActivity extends AppCompatActivity {
 
+    private Button Beschleunigungssensor;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        final Button Beschleunigungssensor = (Button) findViewById(R.id.beschleunigungssensor);
+        Beschleunigungssensor.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(MainActivity.this, Beschleunigungssensor.class);
+                startActivity(intent);
+            }
+        });
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+    }
+
+
+    @Override
+    protected void onPause() {
+        super.onPause();
     }
 }

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

+<?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

     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/textView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            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>