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15 Commits
ko ... lm
10 changed files with 298 additions and 6 deletions
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Sensor als Service einrichten, der aus Activity heraus gestartet werden kann.
Stichwort: Intent
Siehe Skript Teil 1
@@ -0,0 +1,109 @@
package com.example.ueberwachungssystem.Detection;
import static java.lang.Math.sqrt;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
/**
* Accelerometer inherits some methods from abstract Detector class (more info there)
*
*
* USE FROM MAIN ACTIVITY:
*
* Accelerometer beschleunigungssensor = new Accelerometer(this);
* onCreate:
* //Accelerometer Setup
* beschleunigungssensor = new Accelerometer(this, logger, textViewLog); //logger and textview only for debugging necessary
* beschleunigungssensor.getSensor();
*
* //Starting Detection:
* beschleunigungssensor.startDetection();
* //Stopping Detection: also recommended at onPause to avoid unnecessary battery consumption
* beschleunigungssensor.stopDetection();
*
* */
public class Accelerometer extends Detector implements SensorEventListener {
public SensorManager sensorManager;
private static final int sensorType = Sensor.TYPE_LINEAR_ACCELERATION;
private Sensor accelerometer;
private Context context;
boolean alarm = false;
//Preallocate memory for the data of each axis of the acceleration sensor
float x;
float y;
float z;
float betrag; //Betrag aller drei Achsen sqrt(x*x + y*y + z*z)
private DetectionReport detectionReport;
// In constructor pass Activity, Context and TextView from MainActivity in Accelerometer class
public Accelerometer(Context context){
super(context); //von Detektor
this.context = context;
}
public void getSensor(){
sensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
if(sensorManager.getSensorList(sensorType).size()==0) {
accelerometer = null;
}
else {
accelerometer = sensorManager.getSensorList(sensorType).get(0);
}
}
@Override
public void onSensorChanged(SensorEvent event) {
try {
checkAlarm(event);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
public void checkAlarm (SensorEvent event) throws InterruptedException {
x = event.values[0];
y = event.values[1];
z = event.values[2];
betrag = (float) sqrt(x*x + y*y + z*z);
float threshold = 1.5F;
if (!alarm) {
if (betrag > threshold) {
alarm = true;
detectionReport = new DetectionReport("Accelerometer1", "Bewegung", betrag);
reportViolation("Accelo1", "Bewegung", betrag);
}
} else {
if (betrag < threshold) {
alarm = false;
} else {
}
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
@Override
public void startDetection() {
// entspricht void start()
//getSensor();
if (accelerometer != null) {
sensorManager.registerListener(this, accelerometer, SensorManager.SENSOR_DELAY_GAME);
}
}
@Override
public void stopDetection() {
// entspricht void stop()
sensorManager.unregisterListener(this, accelerometer);
}
}
@@ -0,0 +1,36 @@
package com.example.ueberwachungssystem.Detection;
import android.util.Log;
import java.util.Calendar;
/** Detection Report Class */
public class DetectionReport {
public String timeStamp;
public String detectionType;
public float detectedValue;
public String detectorID;
public DetectionReport(String detectorID, String detectionType, float detectedAmplitude) {
this.timeStamp = String.valueOf(Calendar.getInstance().getTime());
this.detectionType = detectionType;
this.detectedValue = detectedAmplitude;
this.detectorID = detectorID;
}
/** Get Detection Report in String format */
public String toString() {
String time = "Time: " + "[" + this.timeStamp + "]";
String type = "Type: " + "[" + this.detectionType + "]";
String value = "Value: " + "[" + this.detectedValue + "]";
String id = "ID: " + "[" + this.detectorID + "]";
return String.join("\t", time, type, value, id);
}
/** Debug Report */
public void log(String tag) {
Log.d(tag, this.toString());
}
}
@@ -0,0 +1,39 @@
package com.example.ueberwachungssystem.Detection;
import android.content.Context;
import androidx.annotation.NonNull;
abstract public class Detector {
private OnDetectionListener listener;
/** Constructor - takes context of current activity */
public Detector(Context context) {};
/** On Detection Listener - runs when violation is reported */
public interface OnDetectionListener {
void onDetection(@NonNull DetectionReport detectionReport);
}
public void setOnDetectionListener(@NonNull OnDetectionListener listener) {
this.listener = listener;
}
/** Triggers onDetectionListener - call this to trigger violation/alarm */
public void reportViolation(String detectorID, String detectionType, float amplitude) {
if (listener != null) {
DetectionReport detectionReport = new DetectionReport(detectorID, detectionType, amplitude);
listener.onDetection(detectionReport);
} else {
throw new IllegalStateException("No listener set for violation reporting");
}
}
/** Starts Detection (abstract method: needs to be overridden in child class) */
public abstract void startDetection();
/** Stops Detection (abstract method: needs to be overridden in child class) */
public abstract void stopDetection();
}
@@ -1,14 +1,72 @@
package com.example.ueberwachungssystem;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.ToggleButton;
public class MainActivity extends AppCompatActivity {
import com.example.ueberwachungssystem.Detection.Accelerometer;
import com.example.ueberwachungssystem.Detection.DetectionReport;
import com.example.ueberwachungssystem.Detection.Detector;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private Accelerometer beschleunigungssensor;
private TextView textViewLog;
private Button button1;
ToggleButton toggleButton1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTitle(this.getClass().getSimpleName());
setContentView(R.layout.activity_main);
toggleButton1 = findViewById(R.id.toggleButton1); //togglebutton um Detektion zu steuern
toggleButton1.setOnClickListener(this);
//Button to clear Log while Debugging
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(this);
//Accelerometer Setup
beschleunigungssensor = new Accelerometer(this); //logger and textview only for debugging necessary
beschleunigungssensor.getSensor();
beschleunigungssensor.setOnDetectionListener(new Detector.OnDetectionListener() {
@Override
public void onDetection(@NonNull DetectionReport detectionReport) {
}
});
}
@Override
protected void onResume() {
super.onResume();
}
@Override
protected void onPause() {
super.onPause();
beschleunigungssensor.stopDetection();
}
@Override
public void onClick(View v) {
if(v == toggleButton1) {
if (toggleButton1.isChecked()) {
beschleunigungssensor.startDetection();
} else {
beschleunigungssensor.stopDetection();
}
} else if (v == button1) {
}
}
}
+46 -1
View File
@@ -7,12 +7,57 @@
tools:context=".MainActivity">
<TextView
android:id="@+id/textViewLog"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
android:layout_marginStart="32dp"
android:layout_marginTop="60dp"
android:layout_marginEnd="32dp"
android:maxLines="25"
android:scrollbars="vertical"
android:text="TextViewLoggerMain"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textViewWorkerThread"
app:layout_constraintVertical_bias="0.0" />
<ToggleButton
android:id="@+id/toggleButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="161dp"
android:layout_marginTop="115dp"
android:layout_marginEnd="162dp"
android:text="ToggleButton"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textViewWorkerThread"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="32dp"
android:text="textViewWorkerThreadTextView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/toggleButton1" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="35dp"
android:layout_marginTop="31dp"
android:layout_marginEnd="282dp"
android:layout_marginBottom="100dp"
android:text="Clear Log"
app:layout_constraintBottom_toTopOf="@+id/textViewWorkerThread"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
+2 -2
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@@ -1,5 +1,5 @@
// Top-level build file where you can add configuration options common to all sub-projects/modules.
plugins {
id 'com.android.application' version '7.4.2' apply false
id 'com.android.library' version '7.4.2' apply false
id 'com.android.application' version '8.0.0' apply false
id 'com.android.library' version '8.0.0' apply false
}
+3 -1
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@@ -18,4 +18,6 @@ android.useAndroidX=true
# Enables namespacing of each library's R class so that its R class includes only the
# 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.nonTransitiveRClass=true
android.defaults.buildfeatures.buildconfig=true
android.nonFinalResIds=false
+1 -1
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@@ -1,6 +1,6 @@
#Thu May 11 15:04:30 CEST 2023
distributionBase=GRADLE_USER_HOME
distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
distributionPath=wrapper/dists
zipStorePath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME