Beschleunigungssensor: Kommentar mit shared Preferences

app/src/main/AndroidManifest.xml

@@ -2,8 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.greenwatch">
 
-    <uses-permission android:name="android.permission.INTERNET" />
-
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -11,6 +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/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/MainActivity.java

@@ -2,55 +2,40 @@ package com.example.greenwatch;
 
 import androidx.appcompat.app.AppCompatActivity;
 
-import android.annotation.SuppressLint;
+
+import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
-import android.widget.EditText;
+
-import android.widget.TextView;
-import java.net.SocketException;
 
 public class MainActivity extends AppCompatActivity {
-    WifiCommunication communication; //Member WifiCommunication
-    TextView tvReceivedData; //Test Textview um empfangene Daten anzuzeigen -> Gegen finale Textview in der Anzeige austauschen
-    //ToDo: Falls finale Textview zum Anzeigen der Nachricht anders heißt, muss das in der Klasse WifiCommunication.java angepasst werden!
-    // Wo anpassen: Receive Thread, Zeile 58
-    private EditText etSendMessage; //Test Edittext um eine Nachricht zu senden -> gegen Nachricht von den Sensoren austauschen
-    private Button btnSend; //Test Sendebutton
 
-    private String sendmsg = "default";
+    private Button Beschleunigungssensor;
 
-    @SuppressLint("MissingInflatedId")
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        xmlToJava(); //Funktionsaufruf, wo die Testbuttons etc angelegt sind
+        final Button Beschleunigungssensor = (Button) findViewById(R.id.beschleunigungssensor);
-    }
+        Beschleunigungssensor.setOnClickListener(new View.OnClickListener() {
-
+            @Override
-    public void xmlToJava(){
+            public void onClick(View v) {
-        tvReceivedData = findViewById(R.id.tvRecTxt);       //Test Textview
+                Intent intent = new Intent(MainActivity.this, Beschleunigungssensor.class);
-        etSendMessage = findViewById(R.id.sendMessage);     //Test Nachricht
+                startActivity(intent);
-        btnSend = findViewById(R.id.btnSend);               //Test Sendebefehl
+            }
-    }
+        });
-
-    public void onClickSend(View view) throws SocketException{  //ToDo: Sendebefehl mit boolscher Variable lösen --> wo setzen?
-        sendmsg = etSendMessage.getText().toString();           //ToDo: hier String von Sensoren übergeben
-        communication.setMessage(sendmsg, true);    //übergibt zu sendenden String und setzt die entscheidende Boolsche Variable fürs Senden
     }
 
     @Override
     protected void onResume() {
         super.onResume();
-        //Erstellen des Members
-        communication = new WifiCommunication(MainActivity.this, MainActivity.this, 1234);
     }
 
+
     @Override
     protected void onPause() {
         super.onPause();
-        //schließt socket
-        communication.stopCommunication();
     }
 }

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

@@ -1,124 +0,0 @@
-package com.example.greenwatch;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.widget.Toast;
-
-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 MainActivity mainActivity;
-    private final InetAddress address;
-    private final int port;
-    private final Context context;
-    private boolean newMsg;
-    private String rxString;
-    private String sendMsg;
-    //private String sendMsg = "default";
-    private final DatagramSocket socket;
-    volatile private boolean running;
-    @SuppressLint("SetTextI18n")
-    public WifiCommunication(MainActivity mainActivity, Context context, int port) {
-        this.mainActivity = mainActivity;
-        this.port = port;
-        this.context = context;
-        try {
-            socket = new DatagramSocket(this.port);
-            socket.setBroadcast(true);
-            address = InetAddress.getByName("255.255.255.255");
-            running = true;
-            new ReceiveThread().start();
-            new SendThread().start();
-        } catch (SocketException | UnknownHostException e) {
-            throw new RuntimeException(e);
-        }
-        mainActivity.runOnUiThread(() -> Toast.makeText(context,"Communication running", Toast.LENGTH_SHORT).show());
-    }
-    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))
-                        mainActivity.runOnUiThread(() -> mainActivity.tvReceivedData.setText(rxString));
-
-                    previousRxString = rxString;
-
-                } while (running);
-            }
-            catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-    }
-
-    public String showMessage(){
-        return rxString;
-    }
-    public void setMessage(String message, boolean newMsg){
-        this.sendMsg=message;
-        this.newMsg = newMsg;
-    }
-    private class SendThread extends Thread {
-        private int tmpCnt = 0;
-        @Override
-        public void run() {
-            try {
-                do {
-
-                    if(newMsg == true)
-                    {
-                        newMsg = false;
-
-                        String txString = getLocalIpAddress() + " sends. #" + tmpCnt++ + sendMsg;
-                        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();
-            }
-        }
-    }
-    public static String getLocalIpAddress() {
-        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 null;
-    }
-    public void stopCommunication() {
-        running = false;
-        socket.close();
-    }
-}

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

@@ -6,31 +6,42 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextView
+    <LinearLayout
-        android:id="@+id/tvRecTxt"
+        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="Received Message"
-        app:layout_constraintTop_toBottomOf="@id/sendMessage"
-        app:layout_constraintStart_toStartOf="parent"/>
 
-    <EditText
+        <TextView
-        android:id="@+id/sendMessage"
+            android:id="@+id/textView"
-        android:layout_width="wrap_content"
+            android:layout_width="wrap_content"
-        android:layout_height="50dp"
+            android:layout_height="wrap_content"
-        android:ems="10"
+            android:text="TextView"
-        android:inputType="textPersonName"
+            tools:layout_editor_absoluteX="171dp"
-        android:text="Send Message"
+            tools:layout_editor_absoluteY="186dp" />
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintStart_toStartOf="parent"/>
 
-    <Button
+        <TextView
-        android:id="@+id/btnSend"
+            android:id="@+id/textView2"
-        android:layout_width="wrap_content"
+            android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+            android:layout_height="wrap_content"
-        android:text="Send"
+            android:text="TextView" />
-        android:onClick="onClickSend"
+
-        app:layout_constraintTop_toTopOf="parent"
+        <Button
-        app:layout_constraintStart_toEndOf="@id/sendMessage"/>
+            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>