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- package de.edotzlaff.schockwelle;
-
- import android.Manifest;
- import android.app.ActionBar;
- import android.content.Context;
- import android.content.pm.PackageManager;
- import android.hardware.Sensor;
- import android.hardware.SensorEvent;
- import android.hardware.SensorEventListener;
- import android.hardware.SensorManager;
- import android.location.Location;
- import android.net.wifi.WifiManager;
- import android.os.Build;
- import android.os.Bundle;
- import android.os.CountDownTimer;
- import android.os.SystemClock;
- import android.provider.ContactsContract;
- import android.provider.Settings;
- import android.util.Log;
- import android.widget.TextView;
- import android.widget.Toast;
-
- import androidx.annotation.NonNull;
- import androidx.core.app.ActivityCompat;
- import androidx.core.content.ContextCompat;
- import androidx.fragment.app.FragmentActivity;
-
- import com.google.android.gms.location.FusedLocationProviderClient;
- import com.google.android.gms.location.LocationServices;
- import com.google.android.gms.maps.CameraUpdateFactory;
- import com.google.android.gms.maps.GoogleMap;
- import com.google.android.gms.maps.OnMapReadyCallback;
- import com.google.android.gms.maps.SupportMapFragment;
- import com.google.android.gms.maps.model.LatLng;
- import com.google.android.gms.maps.model.MarkerOptions;
- import com.google.android.gms.tasks.OnCompleteListener;
- import com.google.android.gms.tasks.Task;
- import com.google.firebase.database.DataSnapshot;
- import com.google.firebase.database.DatabaseError;
- import com.google.firebase.database.DatabaseReference;
- import com.google.firebase.database.FirebaseDatabase;
- import com.google.firebase.database.ValueEventListener;
-
- import java.time.LocalDateTime;
- import java.util.Calendar;
- import java.util.Date;
- import java.util.Objects;
-
- public class EarthquakeMapsActivity extends FragmentActivity implements OnMapReadyCallback {
-
- private static final String TAG = "MainActivity";
- private static final String FINE_LOCATION = Manifest.permission.ACCESS_FINE_LOCATION;
- private static final int LOCATION_PERMISSION_REQUEST_CODE = 1234;
- private Boolean mLocationPermissionsGranted = false;
- private GoogleMap mMap;
- private FusedLocationProviderClient mFusedLocationProviderClient;
-
- Long currentTime;
- Location currentLocation;
- private DatabaseReference mDatenbank;
- private double breitengrad;
- private double laengengrad;
- private boolean useOwnGPS;
- private int indexID = 1;
-
- //##########################################################################################################################################################################
- //################################################################## vvv ShakeParameter vvv ##############################################################################
- private SensorManager mSensorManager;
- private static final float mUpperThreshold = 10.5f; // für Emulator auf 1.5 setzen
- private static final float mLowerThreshold = 5.5f; // für Emulator auf 0.5 setzen
- private static final long mShakeDetectionLockTimeMicroSeconds = 10000;
- private float mAccel;
- private float mAccelCurrent;
- private float mAccelLast;
- private boolean mShakeDetectionIsActive = false;
- private boolean mShakeDetected = false;
- //private boolean allowShakeEvent = true;
- //################################################################## ^^^^ ShakeParameter ^^^^ ############################################################################
- //##########################################################################################################################################################################
-
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_earthquake_maps);
-
- getDataBaseValuesNoListener();
- sensorManagementInit();
- getLocationPermission();
- }
-
- //#####################################################################################################################################################################
- //################################################################## vvv ShakeCode vvv ##############################################################################
- private void sensorManagementInit()
- {
- TextView txtEarthquake = (TextView) findViewById(R.id.txtEarthquake);
- mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
- Objects.requireNonNull(mSensorManager).registerListener(mSensorListener, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
- mAccel = 1f;
- mAccelCurrent = SensorManager.GRAVITY_EARTH;
- mAccelLast = SensorManager.GRAVITY_EARTH;
- mShakeDetectionIsActive = true;
- mShakeDetected = false;
- }
-
- private CountDownTimer mLockTimer = new CountDownTimer(mShakeDetectionLockTimeMicroSeconds, 1000)
- {
- public void onTick(long millisUntilFinished) {
- ((TextView) findViewById(R.id.txtEarthquake)).setText("Earthquake started! Detection locked for " + millisUntilFinished / 1000 + " s");
- }
-
- public void onFinish() {
- mShakeDetectionIsActive = true;
- mShakeDetected = false;
- Toast.makeText(getApplicationContext(), "Shake Detection unlocked", Toast.LENGTH_SHORT).show();
- ( (TextView) findViewById(R.id.txtEarthquake)).setText("Shake your Smartphone for an Earthquake");
- }
- };
-
-
- private final SensorEventListener mSensorListener = new SensorEventListener() {
- @Override
- public void onSensorChanged(SensorEvent event) {
- float x = event.values[0];
- float y = event.values[1];
- float z = event.values[2];
- mAccelLast = mAccelCurrent;
- mAccelCurrent = (float) Math.sqrt((double) (x * x + y * y + z * z));
- float delta = mAccelCurrent - mAccelLast;
- mAccel = mAccel * 0.9f + delta;
- // Log.d(TAG,"mAccel: "+ mAccel);
- if (mShakeDetectionIsActive) {
- if(Math.abs(mAccel) > mUpperThreshold) {
- new CountDownTimer(50, 10) {
-
- public void onTick(long millisUntilFinished) {
- if (Math.abs(mAccel) > mUpperThreshold) {
- mShakeDetectionIsActive = false;
- } else if (Math.abs(mAccel) < mLowerThreshold) {
- mShakeDetectionIsActive = true;
- this.cancel();
- }
- }
-
- public void onFinish() {
- if (Math.abs(mAccel) > mUpperThreshold) {
- mShakeDetectionIsActive = false;
- mShakeDetected = true;
- Toast.makeText(getApplicationContext(), "Shake event detected", Toast.LENGTH_SHORT).show();
- writeEarthquakeToDatabase();
- mLockTimer.start();
- } else {
- mShakeDetectionIsActive = true;
- mShakeDetected = false;
- }
- }
- }.start();
- }
- }
- }
- @Override
- public void onAccuracyChanged(Sensor sensor, int accuracy) {
- }
- };
-
- private void writeEarthquakeToDatabase()
- {
- setDataBaseValues();
- }
-
- @Override
- protected void onResume() {
- mSensorManager.registerListener(mSensorListener, mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
- SensorManager.SENSOR_DELAY_NORMAL);
- super.onResume();
- }
- @Override
- protected void onPause() {
- mSensorManager.unregisterListener(mSensorListener);
- super.onPause();
- }
- //################################################################## ^^^^ ShakeCode ^^^^ ############################################################################
- //#####################################################################################################################################################################
-
- //#####################################################################################################################################################################
- //################################################################## vvv GPS Code vvv ###############################################################################
-
- private void getLocationPermission() {
- String[] permissions = {Manifest.permission.ACCESS_FINE_LOCATION};
- if (ContextCompat.checkSelfPermission(this.getApplicationContext(), FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
- mLocationPermissionsGranted = true;
- initMap();
- } else {
- ActivityCompat.requestPermissions(this, permissions, LOCATION_PERMISSION_REQUEST_CODE);
- }
- }
-
- @Override
- public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
- super.onRequestPermissionsResult(requestCode, permissions, grantResults);
- mLocationPermissionsGranted = false;
-
- switch (requestCode) {
- case LOCATION_PERMISSION_REQUEST_CODE: {
- if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
- mLocationPermissionsGranted = true;
- initMap(); //initalize or map
- }
- }
- }
- }
-
- private void initMap() {
- SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
- mapFragment.getMapAsync(this);
- }
-
- @Override
- public void onMapReady(GoogleMap googleMap) {
- Toast.makeText(this, "Map is ready", Toast.LENGTH_SHORT).show();
- mMap = googleMap;
-
- if (mLocationPermissionsGranted) {
- getDeviceLocation();
-
- if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
- != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this,
- Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
- return;
- }
- mMap.setMyLocationEnabled(true);
- }
-
- // Add a marker in Sydney and move the camera
- //LatLng sydney = new LatLng(-34, 151);
- //mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
- //mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
- }
-
- private void getDeviceLocation(){
- mFusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
- try {
- if (mLocationPermissionsGranted){
- final Task location = mFusedLocationProviderClient.getLastLocation();
-
- location.addOnCompleteListener(new OnCompleteListener() {
-
- @Override
- public void onComplete(@NonNull Task task) {
- if (task.isSuccessful()){
- currentLocation = (Location) task.getResult();
- //currentTime = Calendar.getInstance().getTimeInMillis(); //verschoben in setDataBaseValues
- //Toast.makeText(EarthquakeMapsActivity.this, currentTime.toString(), Toast.LENGTH_SHORT).show(); //verschoben in setDataBaseValues
- if(useOwnGPS)
- {
- breitengrad = currentLocation.getLatitude();
- laengengrad = currentLocation.getLongitude();
- }
- currentLocation.setLatitude(breitengrad);
- currentLocation.setLongitude(laengengrad);
- moveCamera(new LatLng(currentLocation.getLatitude(), currentLocation.getLongitude()),15f);
- //setDataBaseValues(); //Wurde verschoben zu Methode writeEarthquakeToDatabase
- }
- else{
- Toast.makeText(EarthquakeMapsActivity.this, "Current Location unavailable", Toast.LENGTH_SHORT).show();
- }
- }
- });
- }
- }catch (SecurityException e){
- Log.e(TAG,"Device Location not found" + e.getMessage());
- }
- }
-
- private void moveCamera(LatLng latlng, float zoom){
- Log.d(TAG,"Latitude: "+latlng.latitude+"Longitude: "+latlng.longitude);
- mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latlng, zoom));
- }
-
- //################################################################## ^^^^ GPS Code ^^^^ #############################################################################
- //#####################################################################################################################################################################
-
- //#####################################################################################################################################################################
- //################################################################## vvv Datenbank Code vvv #########################################################################
-
- public void getDataBaseValuesNoListener()
- {
- mDatenbank = FirebaseDatabase.getInstance().getReference();
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").get().addOnCompleteListener(new OnCompleteListener<DataSnapshot>() {
- @Override
- public void onComplete(@NonNull Task<DataSnapshot> task) {
- if (!task.isSuccessful()) {
- System.out.println("Datenbankfehler in getDataBaseValuesNoListener");
- System.out.println("Error getting data: " + task.getException());
- }
- else {
- processDataBaseValues(task.getResult());
- }
- }
- });
- }
-
- public void processDataBaseValues (DataSnapshot data)
- {
- processDeviceIndex(data);
- processLocation(data);
- //processMessageDisplay(data);
- }
-
- public void processDeviceIndex(DataSnapshot data)
- {
- for (int i = 1; i<=4; i++)
- {
- String androidid = data.child("IDG" + i).child("androidid").getValue().toString();
- if(androidid.isEmpty())
- {
- indexID = i;
- break;
- }else
- {
- continue;
- }
- }
- }
-
- public void processLocation(DataSnapshot data)
- {
- String breitengradString = data.child("IDG" + indexID).child("breitengrad").getValue().toString();
- String laengengradString = data.child("IDG" + indexID).child("laengengrad").getValue().toString();
-
- if(breitengradString.isEmpty() || laengengradString.isEmpty())
- {
- useOwnGPS = true;
- }else{
- useOwnGPS = false;
- breitengrad = Double.parseDouble(breitengradString);
- laengengrad = Double.parseDouble(laengengradString);
- }
- }
-
- /*
- public void processMessageDisplay(DataSnapshot data)
- {
- String vibrationString;
- String androidid;
- for (int i = 1; i<=4; i++)
- {
- androidid = data.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + i).child("androidid").getValue().toString();
- vibrationString = data.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + i).child("vibration").getValue().toString();
- if((!androidid.isEmpty()) && vibrationString.equals("true"))
- {
- allowShakeEvent = false;
- }
- }
- }
-
- */
-
- public String getandroidid ()
- {
- return Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID);
- }
-
- public String getDeviceIpAdress ()
- {
- WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
- int ip = wm.getConnectionInfo().getIpAddress();
- String ipAddress = String.format("%d.%d.%d.%d",(ip & 0xff),(ip >> 8 & 0xff),(ip >> 16 & 0xff), (ip >> 24 & 0xff));
- return ipAddress;
- }
-
- public void setDataBaseValues()
- {
- mDatenbank = FirebaseDatabase.getInstance().getReference();
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("ip").setValue(getDeviceIpAdress());
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("vibration").setValue(true);
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("timestamp").setValue(Calendar.getInstance().getTimeInMillis());
-
- currentTime = Calendar.getInstance().getTimeInMillis();
- Toast.makeText(EarthquakeMapsActivity.this, currentTime.toString(), Toast.LENGTH_SHORT).show();
-
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("breitengrad").setValue(breitengrad);
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("laengengrad").setValue(laengengrad);
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("amplitude").setValue(1001);
- if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("localdatetime").setValue(LocalDateTime.now().toString());
- }
- mDatenbank.child("overviewAronTestetInDiesemAbschnitt").child("IDG" + indexID).child("androidid").setValue(getandroidid());
- }
-
- //################################################################## ^^^^ Datenbank Code ^^^^ #############################################################################
- //###########################################################################################################################################################################
- }
-
-
- //Evtl. Redundanter Code
- /*
- public void getDataBaseValues()
- {
- mDatenbank = FirebaseDatabase.getInstance().getReference();
- mDatenbank.addValueEventListener(new ValueEventListener() {
- @Override
- public void onDataChange(@NonNull DataSnapshot snapshot) {
- processDataBaseValues(snapshot); //Daten Snapshot, Übergabe an processDataBaseValues
- }
- @Override
- public void onCancelled(@NonNull DatabaseError error) {
- getDataBaseFailure(error);
- }
- });
- }
-
- public void getDataBaseFailure (DatabaseError error)
- {
- System.out.println("Datenbankfehler in gerDataBaseFailure");
- Log.w("Datenbankfehler", error.toException());
- }
- */
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