I am trying to find the current location in my project.So i found this post:
What is the simplest and most robust way to get the user's current location on Android?
I tried using locationclient but was not satisfied with the result.The code that i have used is as follows:
The Mylocation.java class:
package com.igloo.classes;
import java.util.Timer;
import java.util.TimerTask;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
public class MyLocation {
Timer timer1;
LocationManager lm;
LocationResult locationResult;
boolean gps_enabled=false;
boolean network_enabled=false;
public boolean getLocation(Context context, LocationResult result)
{
//I use LocationResult callback class to pass location value from MyLocation to user code.
locationResult=result;
if(lm==null)
lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
//exceptions will be thrown if provider is not permitted.
try{gps_enabled=lm.isProviderEnabled(LocationManager.GPS_PROVIDER);}catch(Exception ex){}
try{network_enabled=lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);}catch(Exception ex){}
//don't start listeners if no provider is enabled
if(!gps_enabled && !network_enabled)
return false;
if(gps_enabled)
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListenerGps);
if(network_enabled)
lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListenerNetwork);
timer1=new Timer();
timer1.schedule(new GetLastLocation(), 90000);
return true;
}
LocationListener locationListenerGps = new LocationListener() {
public void onLocationChanged(Location location) {
timer1.cancel();
locationResult.gotLocation(location);
lm.removeUpdates(this);
lm.removeUpdates(locationListenerNetwork);
}
public void onProviderDisabled(String provider) {}
public void onProviderEnabled(String provider) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
};
LocationListener locationListenerNetwork = new LocationListener() {
public void onLocationChanged(Location location) {
timer1.cancel();
locationResult.gotLocation(location);
lm.removeUpdates(this);
lm.removeUpdates(locationListenerGps);
}
public void onProviderDisabled(String provider) {}
public void onProviderEnabled(String provider) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
};
class GetLastLocation extends TimerTask {
@Override
public void run() {
lm.removeUpdates(locationListenerGps);
lm.removeUpdates(locationListenerNetwork);
Location net_loc=null, gps_loc=null;
if(gps_enabled)
gps_loc=lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(network_enabled)
net_loc=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
//if there are both values use the latest one
if(gps_loc!=null && net_loc!=null){
if(gps_loc.getTime()>net_loc.getTime())
locationResult.gotLocation(gps_loc);
else
locationResult.gotLocation(net_loc);
return;
}
if(gps_loc!=null){
locationResult.gotLocation(gps_loc);
return;
}
if(net_loc!=null){
locationResult.gotLocation(net_loc);
return;
}
locationResult.gotLocation(null);
}
}
public void cancelTimer()
{
if(timer1!=null)
{
timer1.cancel();
lm.removeUpdates(locationListenerGps);
lm.removeUpdates(locationListenerNetwork);
}
}
public static abstract class LocationResult{
public abstract void gotLocation(Location location);
}
}
The code in my main class:I have used a callback method so as to get the location object.
locationResult = new LocationResult(){
@Override
public void gotLocation(Location location){
if(location!=null)
{
current_latitude=location.getLatitude();
current_longitude=location.getLongitude();
}
if(location!=null&&!isLocationRecieved)
{
MarinaJobKeys.user_viewing_jobs=true;
isLocationRecieved=true;
Handler handler = new Handler(Looper.getMainLooper());
handler.post(new Runnable(){
@Override
public void run() {
setcurrentlocation();
}
});
}
else if(location==null)
{
Toast.makeText(getActivity(),"NULL LOCATION RETURNED",Toast.LENGTH_LONG).show();
}
}
};
myLocation = new MyLocation();
myLocation.getLocation(getActivity(), locationResult);
The issue is this:
The code works fine on an older device.But when i run on a new device , the onLocationchanged method in the Mylocation class never gets called.But in the older device it gets called instantly.How do i fix this issue?
EDIT:The issue got fixed on restarting the device.But why does it happen?
