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Ich möchte Daten von GPS und anderen Sensoren lesen und in eine Datei schreiben. Ich kann es für Beschleunigungsmesser tun, aber nicht in der Lage, das Teil für GPS zu implementieren, da ich neu bei Android bin. Bitte erläutern Sie mir in einfachen Schritten, wie Sie dies erreichen können. Hier ist ein Code, den ich habe:Speichern GPS-Daten in Datei in Android
import android.Manifest;
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.location.LocationListener;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Environment;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.appindexing.Action;
import com.google.android.gms.appindexing.AppIndex;
import com.google.android.gms.appindexing.Thing;
import com.google.android.gms.common.api.GoogleApiClient;
import com.opencsv.CSVWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class MainActivity extends AppCompatActivity implements SensorEventListener {
private SensorManager mSensorManager;
private Sensor mSensor;
private static String TAG = "PermissionDemo";
private static final int REQUEST_WRITE_STORAGE = 112;
TextView xval;
TextView yval;
TextView zval;
TextView av;
float axisX;
float axisY;
float axisZ;
float gyX;
float gyY;
float gyZ;
TextView gxval;
TextView gyval;
TextView gzval;
int click = 0;
String entry = "";
String Gyentry = "";
//GPS
protected String mLatitudeLabel;
protected String mLongitudeLabel;
protected TextView mLatitudeText;
protected TextView mLongitudeText;
LocationManager mLocationManager;
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
private GoogleApiClient client;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
mSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
//Toast.makeText(getApplicationContext(),"ACTIVITY SENSING PROJECT", Toast.LENGTH_LONG).show();
xval = (TextView) findViewById(R.id.tv1);
yval = (TextView) findViewById(R.id.tv2);
zval = (TextView) findViewById(R.id.tv3);
gxval = (TextView) findViewById(R.id.tv4);
gyval = (TextView) findViewById(R.id.tv5);
gzval = (TextView) findViewById(R.id.tv6);
av = (TextView) findViewById(R.id.addressview);
av.setText("File Path will be displayed here.");
//GPS
mLocationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}
@Override
protected void onResume() {
super.onResume();
mSensorManager.registerListener(this, mSensor, 2000000000);
mSensorManager.registerListener(this, mSensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE), 5 * 60 * 1000);
mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mLocationListener);
}
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
public Action getIndexApiAction() {
Thing object = new Thing.Builder()
.setName("Main Page") // TODO: Define a title for the content shown.
// TODO: Make sure this auto-generated URL is correct.
.setUrl(Uri.parse("http://[ENTER-YOUR-URL-HERE]"))
.build();
return new Action.Builder(Action.TYPE_VIEW)
.setObject(object)
.setActionStatus(Action.STATUS_TYPE_COMPLETED)
.build();
}
@Override
public void onStart() {
super.onStart();
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
client.connect();
AppIndex.AppIndexApi.start(client, getIndexApiAction());
}
@Override
public void onStop() {
super.onStop();
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
AppIndex.AppIndexApi.end(client, getIndexApiAction());
client.disconnect();
}
public class LocationListener implements android.location.LocationListener {
final String LOG_LABEL = "Location Listener>>";
@Override
public void onLocationChanged(Location location) {
Log.d(TAG, LOG_LABEL + "Location Changed");
if (location != null) {
double longitude = location.getLongitude();
Log.d(TAG, LOG_LABEL + "Longitude:" + longitude);
Toast.makeText(getApplicationContext(), "Long::" + longitude, Toast.LENGTH_SHORT).show();
double latitude = location.getLatitude();
Toast.makeText(getApplicationContext(), "Lat::" + latitude, Toast.LENGTH_SHORT).show();
Log.d(TAG, LOG_LABEL + "Latitude:" + latitude);
}
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
}
@Override
public void onSensorChanged(SensorEvent event) {
if (event.accuracy == SensorManager.SENSOR_STATUS_UNRELIABLE) {
return;
}
Sensor sensor = event.sensor;
if (sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
axisX = event.values[0];
axisY = event.values[1];
axisZ = event.values[2];
//Log.d(Float.toString(axisX),"yes");
xval.setText("X : " + Float.toString(axisX));
yval.setText("Y : " + Float.toString(axisY));
zval.setText("Z : " + Float.toString(axisZ));
if (click == 1) {
Log.d("starting data entry", "Accelerometer Sensor");
entry = entry + Float.toString(axisX) + "," + Float.toString(axisY) + "," + Float.toString(axisZ) + "\n";
//Log.d("entry ", entry);
try {
accWriteTOCSV(Float.toString(axisX), Float.toString(axisY), Float.toString(axisZ));
} catch (IOException e) {
e.printStackTrace();
}
}
} else if (sensor.getType() == Sensor.TYPE_GYROSCOPE) {
gyX = event.values[0];
gyY = event.values[1];
gyZ = event.values[2];
gxval.setText("X : " + Float.toString(gyX));
gyval.setText("Y : " + Float.toString(gyY));
gzval.setText("Z : " + Float.toString(gyZ));
if (click == 1) {
Log.d("starting data entry", "Gyroscope Sensor");
Gyentry = Gyentry + Float.toString(gyX) + "," + Float.toString(gyZ) + "," + Float.toString(gyZ) + "\n";
//Log.d("entry ", entry);
try {
gyroWriteToCSV(Float.toString(gyX), Float.toString(gyY), Float.toString(gyZ));
} catch (IOException e) {
e.printStackTrace();
}
}
}
//Toast.makeText(getApplicationContext(), "hey", Toast.LENGTH_LONG).show();
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
/*
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
*/
public void onclickstart(View v) throws IOException {
Toast.makeText(getApplicationContext(), "Recording started", Toast.LENGTH_LONG).show();
click = 1;
//file handling put here
}
public void onclickstop(View v) throws IOException {
click = 0;
Toast.makeText(getApplicationContext(), "Recording stopped", Toast.LENGTH_LONG).show();
//mSensorManager.unregisterListener(this);
//super.onStop();
}
public void gyroWriteToCSV(String x, String y, String z) throws IOException {
Calendar c = Calendar.getInstance();
File folder = new File(Environment.getExternalStorageDirectory() + "/activitySensing");
boolean success = true;
if (!folder.exists()) {
success = folder.mkdir();
}
if (success) {
String dataEntry = folder + "/gyroSensor.csv";
try {
FileWriter file_writer = new FileWriter(dataEntry, true);
String data = c.get(Calendar.MONTH) + ";" + c.get(Calendar.DATE) + ";" + c.get(Calendar.HOUR) + ";" + c.get(Calendar.MINUTE) + ";" + x + ";" + y + ";" + z + "\n";
file_writer.append(data);
file_writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public void accWriteTOCSV(String x, String y, String z) throws IOException {
Calendar c = Calendar.getInstance();
File folder = new File(Environment.getExternalStorageDirectory() + "/activitySensing");
boolean success = true;
if (!folder.exists()) {
success = folder.mkdir();
}
if (success) {
String dataEntry = folder + "/accSensor.csv";
try {
FileWriter file_writer = new FileWriter(dataEntry, true);
String data = c.get(Calendar.MONTH) + ";" + c.get(Calendar.DATE) + ";" + c.get(Calendar.HOUR) + ";" + c.get(Calendar.MINUTE) + ";" + x + ";" + y + ";" + z + "\n";
file_writer.append(data);
file_writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
Toast.makeText(getBaseContext(), "Location changed : Lat: " +
loc.getLatitude() + " Lng: " + loc.getLongitude(),
Toast.LENGTH_SHORT).show();
String longitude = "Longitude: " + loc.getLongitude();
Log.v(TAG, longitude);
String latitude = "Latitude: " + loc.getLatitude();
Log.v(TAG, latitude);
String s = longitude + "\n" + latitude;
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider,
int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
/*@Override
public void onSensorChanged(SensorEvent event) {
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}*/
}
}