Example usage for android.content Context LOCATION

Introduction

In this page you can find the example usage for android.content Context LOCATION_SERVICE.

Prototype

String LOCATION_SERVICE

To view the source code for android.content Context LOCATION_SERVICE.

Click Source Link

Document

Use with #getSystemService(String) to retrieve a android.location.LocationManager for controlling location updates.

Usage

From source file:Main.java

/**
 * This method returns the last,best known current location for user
 * @param context/*from w ww  .  ja  v a  2 s.c  o m*/
 * @return
 */
public static Location getLastBestLocation(Context context) {

    // get location providers
    LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    Location locationGPS = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    Location locationNet = lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

    // check which ones are available
    boolean haveGPS = (locationGPS != null);
    boolean haveNet = (locationNet != null);

    if (!haveGPS && !haveNet) { // no providers available
        String msg = "Could not find a location. Using random location now.";
        displayAlert(context, msg);
        Location l = new Location("yum fake location");
        l.setLatitude(45.0);
        l.setLongitude(45.0);
        // uh oh... no location
        return new Location(l);

    } else if (haveGPS && !haveNet) { // only gps available

        return locationGPS;

    } else if (!haveGPS && haveNet) { // only cell location available

        return locationNet;

    } else { // choose the most recent one

        long GPSLocationTime = locationGPS.getTime();
        long NetLocationTime = locationNet.getTime();

        if (GPSLocationTime - NetLocationTime > 0) {

            return locationGPS;

        } else {

            return locationNet;

        }
    }

}

From source file:Main.java

/**
 * Returns whether location services are currently active in the specified context. Location
 * services are active if both GPS and network location services are enabled.
 * @param context the context from which to check
 * @return true if there location services are on, otherwise false
 *//*from   ww  w  .ja v a2  s .c om*/
public static boolean isLocationServicesOn(Context context) {
    LocationManager lm = (LocationManager) context.getApplicationContext()
            .getSystemService(Context.LOCATION_SERVICE);
    boolean gpsEnabled = false;
    boolean networkEnabled = false;

    // check whether GPS and network providers are enabled
    try {
        gpsEnabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
    } catch (Exception e) {
    }

    try {
        networkEnabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
    } catch (Exception e) {
    }

    // only show dialog if location services are not enabled
    return (gpsEnabled || networkEnabled);
}

From source file:Main.java

public static String getGpsString(Context context) {
    if (context == null) {
        return null;
    }/*from  w w w.  j  av  a  2  s  .  c  o m*/

    String gps = null;

    Location location = null;
    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    criteria.setAltitudeRequired(false);
    criteria.setBearingRequired(false);
    criteria.setCostAllowed(true);

    LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    String provider = locationManager.getBestProvider(criteria, true);
    if (provider != null) {
        location = locationManager.getLastKnownLocation(provider);
    }
    if (location != null) {
        double longtitude = location.getLongitude();
        double latitude = location.getLatitude();
        gps = "Lon:" + longtitude + "; Lat:" + latitude;
    }

    if (gps == null) {
        gps = "Lon:0; Lat:0";
    }
    return gps;
}

From source file:Main.java

/**
 * Returns current (last known) location of the system. If the context is missing permissions
 * (ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION) or location tracking is disabled by user, this
 * will fail and return null./* w  w w .jav  a  2 s.c o m*/
 * 
 * @param context
 *            Application context of caller
 * @return Current location or null if we could not retrieve current location
 */
public static Location getCurrentLocation(Context context) {
    LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    List<String> providers = lm.getProviders(true);

    // Find most accurate last known location
    Location location = null;
    for (int i = providers.size() - 1; i >= 0; i--) {
        location = lm.getLastKnownLocation(providers.get(i));
        if (location != null)
            break;
    }

    return location;
}

From source file:Main.java

public static boolean isGPSEnable(Context context) {
    LocationManager locationMgr = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    return locationMgr.isProviderEnabled(LocationManager.GPS_PROVIDER);
}

From source file:Main.java

public static boolean isNatworkEnable(Context context) {
    LocationManager locationMgr = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    return locationMgr.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}

From source file:Main.java

public static boolean isOpenGPS(Context context) {
    LocationManager alm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    if (!alm.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) {
        return false;
    }//from   w  ww .j a va  2 s . c  o m
    return true;
}

From source file:Main.java

private static Location getLastBestLocation(Context pContext) {
    LocationManager locationManager = (LocationManager) pContext.getSystemService(Context.LOCATION_SERVICE);
    Location locationGPS = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    Location locationNet = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

    long GPSLocationTime = 0;
    if (null != locationGPS) {
        GPSLocationTime = locationGPS.getTime();
    }/*from  w  w w.j  a va 2s  .co m*/

    long NetLocationTime = 0;
    if (null != locationNet) {
        NetLocationTime = locationNet.getTime();
    }

    if (0 < GPSLocationTime - NetLocationTime) {
        Log.e(TAG, "Located by GPS");
        return locationGPS;
    } else {
        Log.e(TAG, "Located by network");
        return locationNet;
    }
}

From source file:Main.java

/** Instantiates the mLocationManager variable if needed. */
private static final void loadLocationManager() {
    if (mLocationManager == null) {
        mLocationManager = (LocationManager) (new Activity().getApplicationContext())
                .getSystemService(Context.LOCATION_SERVICE);
    }//from   www .  j a v a 2  s.  com
}

From source file:com.prey.actions.location.LocationUtil.java

public static HttpDataService dataLocation(Context ctx) {
    HttpDataService data = null;/*from w  ww .j a  v  a 2s  . c  o  m*/
    try {
        LocationManager mlocManager = (LocationManager) ctx.getSystemService(Context.LOCATION_SERVICE);
        boolean isGpsEnabled = mlocManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
        boolean isNetworkEnabled = mlocManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
        PreyLogger.d("gps status:" + isGpsEnabled);
        PreyLogger.d("net status:" + isNetworkEnabled);
        PreyLocation location = null;

        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || (ActivityCompat.checkSelfPermission(ctx,
                Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
                || ActivityCompat.checkSelfPermission(ctx,
                        Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED)) {
            if (isGpsEnabled || isNetworkEnabled) {
                String method = getMethod(isGpsEnabled, isNetworkEnabled);
                PreyLocation locationPlay = null;
                int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(ctx);
                if (ConnectionResult.SUCCESS == resultCode) {
                    location = getPreyLocationPlayService(ctx, method);
                }
            }
        } else {
            PreyLogger.d("ask for permission location");
        }
        if (location == null)
            location = getDataLocationWifi(ctx);
        if (location != null) {
            PreyLogger.d("locationData:" + location.getLat() + " " + location.getLng() + " "
                    + location.getAccuracy());
            data = convertData(location);
        } else {
            sendNotify(ctx, "Error");
        }
    } catch (Exception e) {
        sendNotify(ctx, "Error");
    }
    return data;
}

Example usage for android.content Context LOCATION_SERVICE

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Prototype

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Usage