i want to find latitude and longitude of user current position and insert in db every second. and drawer a path according to all latitude and longitude of user move on location without using GPS
If you don't want to use GPS you can use services which use WLAN, Bluetooth or CellTower information to determine the position of a device. For Example the Mozilla Location Service.
Only way how you can do it is position based on mobile signal strength https://developer.android.com/guide/topics/location/strategies.html but this methode is not very accurate.
DonĀ“t forget on permission in manifest :
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
Then just register a listener and get the updates
LocationManager manager = (LocationManager)
context.getSystemService(Context.LOCATION_SERVICE);
manager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER, 1, 10, listener);
Related
I am developing an application in which the user's location is tracked using the GPS provider only (device only mode of Location) . Therefore if the user sets his location priority to Approximate Location using Wifi and Data, the application wont work as intended. Therefore I need to check out the user selection of location mode (High accuracy, Approximate Location or Device only) programmatically and display appropriate dialog boxes. What would be a clean way to achieve this?
You can LocationProvider.getAccuracy:
https://developer.android.com/reference/android/location/LocationProvider.html
From the docs:
int getAccuracy ()
Returns a constant describing horizontal accuracy of this provider. If the provider returns finer grain or exact location, ACCURACY_FINE is returned, otherwise if the location is only approximate then ACCURACY_COARSE is returned.
1, To check the provider mode (gps, network, cellar-id)
LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
//get currently used providers
locationManager.getProviders(true);
2, show dialog
new AlertDialog.Builder(this).
setTitle("Title").
setMessage("content").
show();
Note that your app will work for both GPS Only mode and also High Accuracy mode, since with both settings GPS is enabled.
In order to check if GPS is enabled, this will do the trick.
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
boolean isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (!isGpsEnabled) {
//show your alert here
}
onProviderDisabled is telling me the gps is disabled. I want to be able to get the lat and lon in the wifi gps mode as well as the full gps mode.
I am using this code to start up
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
3000,
1, this);
It all works with the full GPS on but I need to be able to get the lat and lon in either mode.
You can request updates from more than one provider. Add the following line:
locationManager.requestLocationUpdates(LocationManager. NETWORK_PROVIDER, 3000, 1, this);
The same callback methods, i.e. onLocationChanged(), onProviderDisabled(), etc., will be used to pass the updates from both providers. If you need to know which provider is passing the update, you can use the Location.getProvider() method in onLocationChanged(), and the String provider parameter passed in the others.
I'm trying to implement an application which senses position from both GPS and the network provider and shows it on a Google Map. I succeeded in doing this, but I have a question:
I get the provider in the onCreate() of my Activity (it extends LocationListener)
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
location = locationManager.getLastKnownLocation(provider);
It works fine, my problem is that when onLocationChange() is called, I should act differently if the provider which called it is GPS or NETWORK. Is there a way to know which?
To be more clear:
When onLocationChanged(Location location) is called, is there a chance to know which provider made the call? I have tried using an if on the provider string but it seems it doesn't work.
Do you need to know the Location provider (GPS, WIFI or Network) or its accuracy?
getAccuracy()
Get the estimated accuracy of this location, in meters.
We define accuracy as the radius of 68% confidence. In other words, if you draw a circle centered at this location's latitude and longitude, and with a radius equal to the accuracy, then there is a 68% probability that the true location is inside the circle.
If you really care about the provider, you could probably use isProviderEnabled().
check that accuracy is <= 30m:
boolean isGPS = (location.getAccuracy() <= 30);
I think you wanna know which provider provided last Location update .....
u have created Provider as a string just use that String in code like
if (provider.matches("GPS")){}
I see several answers, and although they may be useful, none addresses the actual question asked:
When onLocationChanged(Location location) is called, is there a chance to know which provider made the call?
To know whether it was GPS_PROVIDER or NETWORK_PROVIDER the one triggering the onLocationChanged you can use the getProvider() method (or the provider value in Kotlin):
#Override
public void onLocationChanged(Location location){
//obtain a string, 'gps' or 'network', from the location
System.out.println(location.getProvider());
}
Or in Kotlin:
override fun onLocationChanged(location: Location?) {
println(location!!.provider)
}
Doc reference here
I am developing an application in android and I want to get the latitude and longitude of the android mobile. My code for getting latitude and longitude is giving values after some time. And sometimes, it doesn't give values at all. Can anyone help me what can be done!
You need to add this code for getting te current location. make sure you give all the permissions
Location Manager location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(location!=null)
{
latitude = location.getLatitude();
longitude = location.getLongitude();
}
Please used last know location from your location service provider if you not get latest because
When your application is not running at that time some other application used location manager to get current location.
then once you start your application with location manager,what happen location manager basically take some time to prepare to send current location so at that time you have to get last know location from location provider,for that you have to design service in such way.
once the location manager is stable then used those location.
this is best way.
Thank you
Bhavdip
One quicker way would be to get the last known location getLastKnownLocation()
and check if the time of this location is not far location.getTime(). Or use it until you get the real location.
Another tip is to use both GPS_PROVIDER and NETWORK_PROVIDER so your code will be like this :
LocationManager locManager;
locManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
/*call both providers , the quickest one will call the listener and in the listener you remove the locationUpdates*/
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,0 ,0 , locationListener);
locManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,0 ,0 , locationListener);
Location location = locManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
/*check both providers even for lastKnownLocation*/
if (location == null)
{
location = locManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
if(location != null) {
String lat = String.valueOf(location.getLatitude());
v1.setText(lat);
String longi = String.valueOf(location.getLatitude());
v2.setText(longi);
}
this is a simple example, a more elaborate solution would compare the newest lastKnownLocation between providers.
Im writing an application that supposed to send coordinates in an SMS, but I've been struggling a bit with understanding how to get the coordinates.
At the moment I'm using this
LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
longitude = location.getLongitude();
latitude = location.getLatitude();
And then i pass the long and lat into the text, but this only gives me the last know location i guess?
Can anyone tell me how to get the current location?
Regards
/Fred
you need to create a LocationListener and pass it to the LocationManager like this: locationManager.requestLocationUpdates(
locationManager.getBestProvider(fine, true),
minTime, 0, listenerFine);
You will get your lat/long updates from the listener in onLocationChanged()
Please referred Below Link it may be Help You
Get user current position with gps/network android MapView
or
http://www.vogella.de/articles/AndroidLocationAPI/article.html