I am trying to get location after every 10 second using FusedLocationProviderClient, However when i minimize the app or terminate it the location updates stops. Below is my code. Right now i am using android 9.0. I have no idea why this is happening any help will be grateful
Android Menifest
<service android:enabled="true" android:name=".LocationService">
</service>
LocationService.java
package com.example.locationupdate;
import android.Manifest;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.media.AudioManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.content.ContextCompat;
import com.example.locationupdate.db.Realm$Helper;
import com.example.locationupdate.shared_pref.SaveInSharedPreference;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationCallback;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationResult;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.location.LocationSettingsRequest;
import com.google.android.gms.location.SettingsClient;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import java.util.List;
import static com.google.android.gms.location.LocationServices.getFusedLocationProviderClient;
public class LocationService extends Service implements GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
//private LocationRequest mLocationRequest;
private long UPDATE_INTERVAL = 10 * 1000; /* 10 secs */
private long FASTEST_INTERVAL = 2000;
int count = 0;
List<FilterData> datafromDB;
FusedLocationProviderClient mFusedLocationClient;
LocationRequest mLocationRequest;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
LocationCallback mLocationCallback = new LocationCallback(){
@Override
public void onLocationResult(LocationResult locationResult) {
for (Location location : locationResult.getLocations()) {
//Log.e("MainActivity", "Location: " + location.getLatitude() + " " + location.getLongitude());
if (SaveInSharedPreference.getInSharedPreference(LocationService.this).getLat() == 0.0 && SaveInSharedPreference.getInSharedPreference(LocationService.this).getLng() == 0.0) {
SaveInSharedPreference.getInSharedPreference(LocationService.this).setLatLong(location.getLatitude(), location.getLongitude());
}
SaveInSharedPreference.getInSharedPreference(LocationService.this).setCurrentLatLong(location.getLatitude(), location.getLongitude());
count = count + 1;
Log.e("mLocationCallbackLat", String.valueOf(location.getLatitude()));
Log.e("mLocationCallbackLong", String.valueOf(location.getLongitude()));
//LocationMatch(location);
}
/* datafromDB = Realm$Helper.getLocation$Module(LocationService.this).getAllData();
for (FilterData str : datafromDB) {
String name = str.getName();
}*/
};
};
public void onResume() {
Log.e("OnResume", "OnResumeEvent");
if (mFusedLocationClient != null) {
requestLocationUpdates();
}
}
public void requestLocationUpdates() {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(UPDATE_INTERVAL); // two minute interval
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
mFusedLocationClient.requestLocationUpdates(mLocationRequest, mLocationCallback, Looper.myLooper());
}
}
public void onPause() {
//super.onPause();
Log.e("ONPause", "OnPauseEvent");
if (mFusedLocationClient != null) {
mFusedLocationClient.removeLocationUpdates(mLocationCallback);
}
}
protected void startLocationUpdates() {
// Create the location request to start receiving updates
mLocationRequest = new LocationRequest();
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRequest.setInterval(UPDATE_INTERVAL);
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
// Create LocationSettingsRequest object using location request
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder();
builder.addLocationRequest(mLocationRequest);
LocationSettingsRequest locationSettingsRequest = builder.build();
// Check whether location settings are satisfied
// https://developers.google.com/android/reference/com/google/android/gms/location/SettingsClient
SettingsClient settingsClient = LocationServices.getSettingsClient(this);
settingsClient.checkLocationSettings(locationSettingsRequest);
// new Google API SDK v11 uses getFusedLocationProviderClient(this)
getFusedLocationProviderClient(this).requestLocationUpdates(mLocationRequest, new LocationCallback() {
@Override
public void onLocationResult(LocationResult locationResult) {
// do work here
onLocationChanged(locationResult.getLastLocation());
}
},
Looper.myLooper());
}
public void onLocationChanged(Location location) {
if (SaveInSharedPreference.getInSharedPreference(LocationService.this).getLat() == 0.0 && SaveInSharedPreference.getInSharedPreference(LocationService.this).getLng() == 0.0) {
SaveInSharedPreference.getInSharedPreference(LocationService.this).setLatLong(location.getLatitude(), location.getLongitude());
}
SaveInSharedPreference.getInSharedPreference(LocationService.this).setCurrentLatLong(location.getLatitude(), location.getLongitude());
Toast.makeText(this,"onLocationChanged",Toast.LENGTH_LONG);
// New location has now been determined
String msg = "Updated Location: " +
Double.toString(location.getLatitude()) + "," +
Double.toString(location.getLongitude());
Log.e ("onLocationChangedLat", String.valueOf(location.getLatitude()));
Log.e ("onLocationChangedLong", String.valueOf(location.getLongitude()));
// You can now create a LatLng Object for use with maps
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
/*loc1.setLatitude(location.getLatitude());
loc1.setLongitude(location.getLongitude());
loc2.setLatitude(str.getLat());
loc2.setLongitude(str.getlng());
double distanceInMeters = loc1.distanceTo(loc2);
Log.e("Name", name);
Log.e("Distance", "" + distanceInMeters);*/
}
public void getLastLocation() {
// Get last known recent location using new Google Play Services SDK (v11+)
FusedLocationProviderClient locationClient = getFusedLocationProviderClient(this);
locationClient.getLastLocation()
.addOnSuccessListener(new OnSuccessListener<Location>() {
@Override
public void onSuccess(Location location) {
// GPS location can be null if GPS is switched off
if (location != null) {
onLocationChanged(location);
}
}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Log.d("MapDemoActivity", "Error trying to get last GPS location");
e.printStackTrace();
}
});
}
@Override
public void onConnected(@Nullable Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
}
MainActitvity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//locationTv = findViewById(R.id.location);
Intent startIntent = new Intent(this, LocationService.class);
startService(startIntent);
You can achieve this by setting up a handler and adding the required permissions to the android app. Apperantly there is a limit to how many times you can request the location in the background according to Android Location In Background but i have not seen this. Im requesting a new location every second.
First add these to your manifest:
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
Then you can create a handler like this.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
...
createLocationHandler();
...
}
The createLocationHandler and isServiceRunning function:
public void createLocationHandler(){
HandlerThread locationHandler = new HandlerThread("LocationHandler"); //Creates a new handler thread
locationHandler.start(); //Starts the thread
Handler handler = new Handler(locationHandler.getLooper()); //Get the looper from the handler thread
handler.postDelayed(new Runnable() {//Run the runnable only after the given time
@Override
public void run() {
//Check if the location service is running, if its not. lets start it!
if(!isMyServiceRunning(LocationService.class)){
getApplicationContext().startService(new Intent(getApplicationContext(), LocationService.class));
}
//Requests a new location from the location service(Feel like it could be done in a less static way)
LocationService.requestNewLocation();
createLocationHandler();//Call the create location handler again, this will not be added to the stack because of the looper.
}
}, 10000);//Set the delay to be 10 seconds, 1 second = 1000 milliseconds
}
private boolean isMyServiceRunning(Class<?> serviceClass) {
ActivityManager manager = (ActivityManager) this.getApplicationContext().getSystemService(Context.ACTIVITY_SERVICE);
for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
if (serviceClass.getName().equals(service.service.getClassName())) {
return true;
}
}
return false;
}
Remember to ask for the background_location permission before you want to start the service.