I am stuck with location with GPS/Network Providers. I know it is a basic question for all androiders but i am having this problem since long time.
Actually I am taking current location and inserting in database by following method on click of Option Menu .
/****
* GPS Process First of all call listener of Location then checking for GPS_PROVIDER if not
* available then check for NETWORK_PROVIDER and if its also not available then pass
* 0.00,0.00 to longitude and latitude
*/
/** PROCESS for Get Longitude and Latitude **/
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
// Define a listener that responds to location updates
locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
// Called when a new location is found by the network location provider.
longitude = String.valueOf(location.getLongitude());
latitude = String.valueOf(location.getLatitude());
Log.d(TAG, "changed Loc : " + longitude + ":" + latitude);
}
public void onStatusChanged(String provider, int status, Bundle extras) {
}
public void onProviderEnabled(String provider) {
}
public void onProviderDisabled(String provider) {
}
};
// getting GPS status
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
// check if GPS enabled
if (isGPSEnabled) {
int i;
for (i = 0; i < 3; i++) {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
locationListener);
Location location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null) {
longitude = String.valueOf(location.getLongitude());
latitude = String.valueOf(location.getLatitude());
break;
} else {
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null) {
longitude = String.valueOf(location.getLongitude());
latitude = String.valueOf(location.getLatitude());
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0,
0, locationListener);
break;
} else {
longitude = "0.00";
latitude = "0.00";
}
}
}
/**
* Record Inserting Process in Database...
**/
} else {
AlertDialogManager.showAlertforSettings(AccountMenuActivity.this, "GPS Settings",
"GPS is not Enabled. Do you want to Enable?", false);
}
I am getting 0.00 latitude and longitude many times and sometimes i got the location of other countries (China, South Africa etc...)
https://developers.google.com/android/reference/com/google/android/gms/location/FusedLocationProviderApi https://developers.google.com/android/reference/com/google/android/gms/location/FusedLocationProviderApi
That i have implemented by following some links but getting errors like:
/**
* Booleans for GPS and NETWORK is Enabled or not...
*/
boolean gpsEnabled = false;
boolean networkEnabled = false;
//exceptions will be thrown if provider is not permitted.
try {
gpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
} catch (Exception ex) {
Log.e("TAG", "GPS Error : " + ex.getLocalizedMessage());
}
try {
networkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
} catch (Exception ex) {
Log.e("TAG", "NetWork Error : " + ex.getLocalizedMessage());
}
Log.e("TAG", "GPS Network status : " + gpsEnabled + " : " + networkEnabled);
//don t start listeners if no provider is enabled
if (!gpsEnabled && !networkEnabled) {
AlertDialogManager.showAlertforSettings(VisitAcitivity.this, "GPS Settings", "GPS is not Enabled. Do you want to Enable?", false);
} else {
Log.i(TAG, "isPlayServiceAvailable" + isPlayServiceAvailable);
if(isPlayServiceAvailable) {
createLocationRequest();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
mGoogleApiClient.connect();
} else {
final MyLocation.LocationResult locationResult = new MyLocation.LocationResult() {
@Override
public void gotLocation(final Location location) {
// Got the location!
runOnUiThread(new Runnable() {
@Override
public void run() {
longitude = String.valueOf(location.getLongitude());
latitude = String.valueOf(location.getLatitude());
saveVisit();
}
});
}
};
MyLocation myLocation = new MyLocation();
myLocation.getLocation(VisitAcitivity.this, locationResult);
}
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
if(isPlayServiceAvailable && mGoogleApiClient != null)
stopLocationUpdates();
else if (locationManager != null) {
locationManager.removeUpdates(locationListener);
Log.d("msg", "Location Listener ended...");
}
}
@Override
public void onStop() {
super.onStop();
Log.d(TAG, "onStop fired ..............");
if(mGoogleApiClient != null)
mGoogleApiClient.disconnect();
}
@Override
public void onConnected(Bundle bundle) {
Log.d(TAG, "onConnected - isConnected ...............: " + mGoogleApiClient.isConnected());
startLocationUpdates();
}
protected void startLocationUpdates() {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
Log.d(TAG, "Location update started ..............: ");
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
@Override
public void onLocationChanged(Location location) {
Log.d(TAG, "Firing onLocationChanged..............................................");
mCurrentLocation = location;
Log.d(TAG, "UI update initiated .............");
if (null != mCurrentLocation) {
latitude = String.valueOf(mCurrentLocation.getLatitude());
longitude = String.valueOf(mCurrentLocation.getLongitude());
} else {
Log.d(TAG, "location is null ...............");
}
}
protected void stopLocationUpdates() {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
Log.d(TAG, "Location update stopped .......................");
}
In that i am managing two way to get location:
- Google Play Service is available or not then get location using FusedLocation API.
- Otherwise Get location using My own way (because so many device).
I had taken following permissions in My AndroidManifest.xml:
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
then also getting NULL locations :( IS THERE ANY SOLUTION for THIS PROBLEM?
Thanking you in Advance.
