我的APP的GPS功能有问题。我已经把整个互联网都抛在脑后，找到了解决方案，但是没有什么可以解决问题的。
我们的团队开发了具有多种功能的应用程序，其中包括将位置信息保存在数据库中，从而实现了员工到客户的访问路线。
问题在于，完成巡回赛后，他应该关闭GPS侦听器，但是他并未关闭GPS侦听器并一直在使用，这会消耗电池电量。
有人会给出答案，甚至有其他替代方法来执行这种功能吗？
谢谢。
GPSTracker：
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
// First get location from Network Provider
// if (isNetworkEnabled) {
// // locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,MIN_TIME_BW_UPDATES,MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
// locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,MIN_TIME_BW_UPDATES,MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
// Log.d("Network", "Network");
// if (locationManager != null) {
// location = locationManager
// .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
// if (location != null) {
// latitude = location.getLatitude();
// longitude = location.getLongitude();
// }
// }
// }
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
latitude = location.getLatitude();
longitude = location.getLongitude();
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return location;
}
/**
* Stop using GPS listener
* Calling this function will stop using GPS in your app
* */
public void stopUsingGPS(){
if(locationManager != null){
locationManager.removeUpdates(GPSTracker.this);
locationManager = null;
}
}
/**
* Function to get latitude
* */
public double getLatitude(){
if(location != null){
latitude = location.getLatitude();
}
// return latitude
return latitude;
}
/**
* Function to get longitude
* */
public double getLongitude(){
if(location != null){
longitude = location.getLongitude();
}
// return longitude
return longitude;
}
/**
* Function to check GPS/wifi enabled
* @return boolean
* */
public boolean canGetLocation() {
return this.canGetLocation;
}
/**
* Function to show settings alert dialog
* On pressing Settings button will lauch Settings Options
* */
public void showSettingsAlert(){
AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
// Setting Dialog Title
alertDialog.setTitle("GPS is settings");
// Setting Dialog Message
alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
// On pressing Settings button
alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
mContext.startActivity(intent);
}
});
// on pressing cancel button
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
// Showing Alert Message
alertDialog.show();
}
@Override
public void onLocationChanged(Location location) {
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public IBinder onBind(Intent arg0) {
return null;
}
}
接收器
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import java.util.Calendar;
import java.util.Date;
import br.com.infogen.projetec.cadastro.empresa.Empresa;
import br.com.infogen.projetec.cadastro.empresa.EmpresaDAO;
import br.com.infogen.projetec.cadastro.visitaTecnica.VisitaTecnica;
import br.com.infogen.projetec.cadastro.visitaTecnica.VisitaTecnicaDAO;
import br.com.infogen.projetec.gps.GPSTracker;
public class VisitaTecnicaGPSBroadcastReceiver extends BroadcastReceiver{
VisitaTecnicaGPSDAO visitaTecnicaGPSDAO;
VisitaTecnicaGPS visitaTecnicaGPS;
VisitaTecnicaDAO visitaTecnicaDAO;
VisitaTecnica visitaTecnica;
Empresa empresa;
EmpresaDAO empresaDAO;
public static final int horaFinal = 20;
private int conVisAbe;
private Date dataInicial;
double latitude;
double longitude;
GPSTracker gps;
@Override
public void onReceive(Context context, Intent intent) {
empresaDAO = new EmpresaDAO(context);
visitaTecnicaGPSDAO = new VisitaTecnicaGPSDAO(context);
visitaTecnicaGPS = new VisitaTecnicaGPS();
visitaTecnicaDAO = new VisitaTecnicaDAO(context);
empresa = empresaDAO.buscar(1);
conVisAbe = empresa.getConVisAbe();
Log.i("receiver", "testando receiver");
gps = new GPSTracker(context);
if (gps.canGetLocation()) {
latitude = gps.getLatitude();
longitude = gps.getLongitude();
// Toast.makeText(context, "Latitude: "+latitude+ " e Longitude"+longitude, Toast.LENGTH_SHORT).show();
Log.i("Localização", "Latitude: "+latitude+ " e Longitude"+longitude);
} else {
gps.showSettingsAlert();
Log.i("Localização", "Não encontrou");
}
visitaTecnica = visitaTecnicaDAO.buscarVisitasAbertas();
if ((visitaTecnica instanceof VisitaTecnica)) {
if (conVisAbe == 1) {
dataInicial = visitaTecnica.getDataEmissao();
Date dataAtual = new Date();
Date dataF1 = getDatePart(dataInicial);
Date dataF2 = getDatePart(dataAtual);
if (dataF1.before(dataF2)) {
gps.stopUsingGPS();
visitaTecnica.setConVisAbe(1);
dataF1.setHours(22);
dataF1.setMinutes(00);
dataF1.setSeconds(00);
visitaTecnica.setDataFinal(dataF1);
visitaTecnicaGPS.setData(dataF1);
visitaTecnicaDAO.salvarDoAlarme(visitaTecnica);
visitaTecnicaGPS.setVisitaTecnica(visitaTecnica);
visitaTecnicaGPS.setLatitude(String.valueOf(latitude));
visitaTecnicaGPS.setLongitude(String.valueOf(longitude));
try {
visitaTecnicaGPSDAO.salvar(visitaTecnicaGPS);
Log.i("testando banco", "localização salva com sucesso");
} catch (Exception e) {
Log.i("testando banco", "localização não foi salva");
}
cancelarAlarme(context);
} else {
visitaTecnicaGPS.setVisitaTecnica(visitaTecnica);
visitaTecnicaGPS.setLatitude(String.valueOf(latitude));
visitaTecnicaGPS.setLongitude(String.valueOf(longitude));
try {
visitaTecnicaGPSDAO.salvar(visitaTecnicaGPS);
Log.i("testando banco", "localização salva com sucesso");
} catch (Exception e) {
Log.i("testando banco", "localização não foi salva");
}
}
} else {
visitaTecnicaGPS.setVisitaTecnica(visitaTecnica);
visitaTecnicaGPS.setLatitude(String.valueOf(latitude));
visitaTecnicaGPS.setLongitude(String.valueOf(longitude));
try {
visitaTecnicaGPSDAO.salvar(visitaTecnicaGPS);
Log.i("testando banco", "localização salva com sucesso");
} catch (Exception e) {
Log.i("testando banco", "localização não foi salva");
}
}
}
}
private void cancelarAlarme(Context context) {
Log.i("alarme", "Alarme cancelado");
// Intent it = new Intent("EXECUTAR_GPS");
Intent it = new Intent(context, VisitaTecnicaGPSBroadcastReceiver.class);
PendingIntent p = PendingIntent.getBroadcast(context,0, it, 0);
AlarmManager alarme = (AlarmManager) context.getSystemService(Activity.ALARM_SERVICE);
alarme.cancel(p);
}
private static Date getDatePart(Date data) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(data);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(calendar.MILLISECOND, 0);
data = calendar.getTime();
return data;
}
}