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| package com.projet.first.myapplication;
import android.Manifest;
import android.app.Activity;
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.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import static android.content.ContentValues.TAG;
public class MainActivity extends Activity implements LocationListener {
private LocationManager locationManager;
private SensorManager sensorManager;
private Sensor magnet;
private double latitude;
private double longitude;
private double altitude;
private float accuracy;
private float x,y,z;
String[] permissions = new String[]{
Manifest.permission.INTERNET,
Manifest.permission.READ_PHONE_STATE,
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.VIBRATE,
Manifest.permission.RECORD_AUDIO,
};
private boolean checkPermissions() {
int result;
List<String> listPermissionsNeeded = new ArrayList<>();
for (String p : permissions) {
result = ContextCompat.checkSelfPermission(this, p);
if (result != PackageManager.PERMISSION_GRANTED) {
listPermissionsNeeded.add(p);
}
}
if (!listPermissionsNeeded.isEmpty()) {
ActivityCompat.requestPermissions(this, listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]), 100);
return false;
}
return true;
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
if (requestCode == 100) {
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// do something
}
return;
}
}
public boolean isStoragePermissionGranted() {
if (Build.VERSION.SDK_INT >= 23) {
if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_GRANTED) {
Log.v(TAG,"Permission is granted");
return true;
} else {
Log.v(TAG,"Permission is revoked");
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
return false;
}
}
else { //permission is automatically granted on sdk<23 upon installation
Log.v(TAG,"Permission is granted");
return true;
}
}
public void ecrire(String texte) throws IOException {
TextView total = (TextView)findViewById(R.id.all);
total.setText(texte);
setContentView(total);
try
{
File myFile = new File(Environment.getExternalStorageDirectory() +
File.separator + "appli_test","testAppli.txt"); //on déclare notre futur fichier
File myDir = new File(Environment.getExternalStorageDirectory() +
File.separator + "appli_test"); //pour créer le repertoire dans lequel on va mettre notre fichier
Boolean success=true;
if (!myDir.exists()) {
myDir.mkdir(); //On crée le répertoire (s'il n'existe pas!!)
}
if (success){
String data= texte;
FileOutputStream output = new FileOutputStream(myFile,true); //le true est pour écrire en fin de fichier, et non l'écraser
output.write(data.getBytes());
}
else {
Log.e("TEST1","ERROR DE CREATION DE DOSSIER");
}
}
catch(IOException ioe){System.out.println("erreur : " + ioe );}
//on "catch" l exception ici si il y en a une, et on l affiche sur la console
}
public String construireChaine(double longitude, double latitude, double altitude, float accuracy, float x, float y, float z) {
return "x: " + x + " y: " + y + " z: " + z + " lat: " + latitude + " longi: " + longitude + " alti: " + altitude + " accuracy: " + accuracy;
}
@Override
protected void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
magnet = sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
checkPermissions();
isStoragePermissionGranted();
File f = new File("/sdcard/toto");
f.mkdirs();
File myFile = new File("sdcard" +
File.separator + "Android"+ File.separator +"appli_test","testAppli.txt"); //on déclare notre futur fichier
File myDir = new File("sdcard" +
File.separator + "Android"+ File.separator +"appli_test"); //pour créer le repertoire dans lequel on va mettre notre fichier
Boolean success=true;
if (!myDir.exists()) {
success = myDir.mkdir(); //On crée le répertoire (s'il n'existe pas!!)
}
if (success){
String data= "tesssssst";
try (FileOutputStream output = new FileOutputStream(myFile, true)) {
output.write(data.getBytes());
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
else {
Log.e("TEST1","ERROR DE CREATION DE DOSSIER");
}
TextView tv = new TextView(this);
tv.setText((CharSequence) myDir.getAbsolutePath());
setContentView(tv);
}
@Override
public void onResume() {
super.onResume();
//Obtention de la référence du service
locationManager = (LocationManager) this.getSystemService(LOCATION_SERVICE);
//Si le GPS est disponible, on s'y abonne
if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
abonnementGPS();
}
}
@Override
public void onPause() {
super.onPause();
//On appelle la méthode pour se désabonner
desabonnementGPS();
}
/**
* Méthode permettant de s'abonner à la localisation par GPS.
*/
public void abonnementGPS() {
//On s'abonne
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 10, this);
}
/**
* Méthode permettant de se désabonner de la localisation par GPS.
*/
public void desabonnementGPS() {
//Si le GPS est disponible, on s'y abonne
locationManager.removeUpdates(this);
}
final SensorEventListener mSensorEventListener = new SensorEventListener() {
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// Que faire en cas de changement de précision ?
}
public void onSensorChanged(SensorEvent sensorEvent) {
String chaineAEcrire = null;
if (sensorEvent.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
x = sensorEvent.values[0];
y = sensorEvent.values[1];
z = sensorEvent.values[2];
chaineAEcrire = construireChaine(longitude,latitude,altitude,accuracy,x,y,z);
}
try {
ecrire(chaineAEcrire);
} catch (IOException e) {
e.printStackTrace();
}
}
};
@Override
public void onLocationChanged(final Location location) {
//On affiche dans un Toat la nouvelle Localisation
final StringBuilder msg = new StringBuilder("lat : ");
msg.append(location.getLatitude());
msg.append( "; lng : ");
msg.append(location.getLongitude());
latitude = location.getLatitude();
longitude = location.getLongitude();
altitude = location.getAltitude();
accuracy = location.getAccuracy();
String messageAEcrire = construireChaine(longitude,latitude,altitude,accuracy,x,y,z);
try {
ecrire(messageAEcrire);
} catch (IOException e) {
e.printStackTrace();
}
Toast.makeText(this, msg.toString(), Toast.LENGTH_SHORT).show();
}
@Override
public void onProviderDisabled(final String provider) {
//Si le GPS est désactivé on se désabonne
if("gps".equals(provider)) {
desabonnementGPS();
}
}
@Override
public void onProviderEnabled(final String provider) {
//Si le GPS est activé on s'abonne
if("gps".equals(provider)) {
abonnementGPS();
}
}
@Override
public void onStatusChanged(final String provider, final int status, final Bundle extras) { }
} |
