Android location api not working

Question

I'm trying to acquire GPS coordinates on my android application.

Criteria criteria = new Criteria();
criteria.setAltitudeRequired(false);
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setBearingRequired(false);
criteria.setCostAllowed(false);
criteria.setPowerRequirement(Criteria.POWER_HIGH);
LocationManager locationManager =
        (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

Intent i = new Intent(context, IntentListener.class);
i.setAction(Actions.ACTION_UPDATE_LOCATION);
PendingIntent pi = PendingIntent.getBroadcast(
        context, 0, i, PendingIntent.FLAG_UPDATE_CURRENT);
String provider = locationManager.getBestProvider(criteria, true);
if (provider == null) return;
locationManager.requestLocationUpdates(provider, 90 * 1000, 30, pi);

and here's receiving code.

Intent service = new Intent(context, WorkerService.class);
service.setAction(Actions.ACTION_UPDATE_LOCATION);
Location location = (Location) intent.getExtras().get(
        LocationManager.KEY_LOCATION_CHANGED);

if (location == null) { // <-- Always true
    return;
}

service.putExtra("lat", location.getLatitude());
service.putExtra("lon", location.getLongitude());
context.startService(service);

As you can see, I'm unable to obtain Location instance by calling intent.getExtras()... etc. Returned value is always null. I'm testing on my emulator running android 4.1.2 and telnet client, using geo fix longitude latitude. Anyone knows what's wrong? Thanks.

P.S. Manifest contains all required permissions and GPS is enabled in the emulator.

P.P.S. This application is a corporate app, that runs as a service, without UI and should collect GPS coordinates.

if you close and re-open your phone it clears cache about your location. Just open google maps or anoother location service and wait till phone finds your location to save another cache, then go on.. — Sercan Ozdemir, Nov 08 '13 at 11:58

score 5 · Accepted Answer · answered Nov 13 '13 at 19:27

5

You casually mentioned that you're testing on an emulator. The emulator doesn't receive mock locations by itself; you have to specifically send them through the DDMS interface.

Additionally, due to a bug in the emulator, the time offset in incoming locations is set to midnight, so your location criteria will likely not match it.

I strongly suggest you test with a physical device to confirm that the problem is still occurring.

answered Nov 13 '13 at 19:27

Paul Lammertsma

36,649
15
132
186

Still occurs on an original device if the GPS is off, and doesn't prompt the user to switch it on! – Tayyab Ferozi Mar 24 '22 at 13:29

score 2 · Answer 2 · answered Nov 17 '13 at 11:50

Use my code to get the location because it is working. I am getting lat and long from this code and even getting the address accurate to the phone number.

In AndroidGPSActivity.java , in the btnShowLocation listener method, i am getting the lat and long successfully. After that you may do whatever you wish.

Turn your gps and wifi on before because you cant turn on GPS programmaticaly after API 11 i guess(not sure of the API level):-

First add all these permissions in your android manifest file

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

AndroidGPSTrackingActivity.java*

package com.example.gpstracking;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Locale;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.location.Address;
import android.location.Geocoder;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.Uri;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebView;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.Toast;
import android.widget.ToggleButton;

public class AndroidGPSTrackingActivity extends Activity {

    Button btnShowLocation;

    // GPSTracker class
    GPSTracker gps;
    ToggleButton gpstoggle,wifitoggle,datatoggle;
    static WifiManager wifiManager;
    LocationManager lm;
    WebView web;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        btnShowLocation = (Button) findViewById(R.id.btnShowLocation);

        gpstoggle = (ToggleButton) findViewById(R.id.gps);
        wifitoggle = (ToggleButton) findViewById(R.id.wifi);

        wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE); 

        lm = (LocationManager) getSystemService(LOCATION_SERVICE);

        //gps toggle
        gpstoggle.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(isChecked){
                    final Intent poke = new Intent();
                    poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider"); 
                    poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
                    poke.setData(Uri.parse("3")); 
                    getApplicationContext().sendBroadcast(poke);
                }
                else{
                    final Intent poke = new Intent();
                    poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider"); 
                    poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
                    poke.setData(Uri.parse("3")); 
                    getApplicationContext().sendBroadcast(poke);
                }
            }
        });
        //wifi toggle
        wifitoggle.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(isChecked){
                    wifiManager.setWifiEnabled(true);
                }
                else{
                    wifiManager.setWifiEnabled(false);
                }
            }
        });

        //data toggle
        datatoggle.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(isChecked){
                    ConnectivityManager dataManager;
                    dataManager  = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
                    Method dataMtd = null;

                    try {
                        dataMtd = ConnectivityManager.class.getDeclaredMethod("setMobileDataEnabled", boolean.class);
                        dataMtd.setAccessible(true);
                        dataMtd.invoke(dataManager, true);

                    } catch (NoSuchMethodException e1) {
                        e1.printStackTrace();
                    }
                    catch (IllegalArgumentException e) {
                        e.printStackTrace();
                    } catch (IllegalAccessException e) {
                        e.printStackTrace();
                    } catch (InvocationTargetException e) {
                        e.printStackTrace();
                    }  
                    catch (SecurityException e) {
                        e.printStackTrace();
                    } 

                }
                else{
                    ConnectivityManager dataManager;
                    dataManager  = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
                    Method dataMtd = null;

                    try {
                        dataMtd = ConnectivityManager.class.getDeclaredMethod("setMobileDataEnabled", boolean.class);
                        dataMtd.setAccessible(false);
                        dataMtd.invoke(dataManager, false);


                    } catch (NoSuchMethodException e1) {
                        e1.printStackTrace();
                    }
                    catch (IllegalArgumentException e) {
                        e.printStackTrace();
                    } catch (IllegalAccessException e) {
                        e.printStackTrace();
                    } catch (InvocationTargetException e) {
                        e.printStackTrace();
                    }  
                    catch (SecurityException e) {
                        e.printStackTrace();
                    } 

                }
            }
        });

        // show location button click event
        btnShowLocation.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {        
                // create class object
                gps = new GPSTracker(AndroidGPSTrackingActivity.this);

                // check if GPS enabled     
                if(gps.canGetLocation()){

                    double latitude = gps.getLatitude();
                    double longitude = gps.getLongitude();

                    Geocoder gcd = new Geocoder(getApplicationContext(), Locale.getDefault());
                    List<Address> addresses = null;
                    try {
                        addresses = gcd.getFromLocation(latitude, longitude, 1);
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                    if(!(addresses == null)){
                        if (!addresses.isEmpty() ){
                            System.out.println(addresses.get(0).getLocality());

                            Address address = addresses.get(0);

                            String addressText = String.format("%s, %s, %s, %s, %s, %s",
                                    address.getAddressLine(0),
                                    address.getAddressLine(1),
                                    address.getAddressLine(2),
                                    address.getAddressLine(3),
                                    address.getPhone(),
                                    address.getPremises());

                            System.out.println(addressText);

                            // \n is for new line
                            Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();
                        }else{
                            // can't get location
                            // GPS or Network is not enabled
                            // Ask user to enable GPS/network in settings
                            gps.showSettingsAlert();
                        }
                    }else{
                        // can't get location
                        // GPS or Network is not enabled
                        // Ask user to enable GPS/network in settings
                        gps.showSettingsAlert();
                    }

                }

            }
        });
    }

}

GPSTracker.java

package com.example.gpstracking;

import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;
import android.widget.Toast;

public class GPSTracker extends Service implements LocationListener {

    private final Context mContext;

    // flag for GPS status
    boolean isGPSEnabled = false;

    // flag for GPS status
    boolean canGetLocation = false;

    Location location; // location
    double latitude; // latitude
    double longitude; // longitude

    // The minimum distance to change Updates in meters
    private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters

    // The minimum time between updates in milliseconds
    private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute

    // Declaring a Location Manager
    protected LocationManager locationManager;

    public GPSTracker(Context context) {
        this.mContext = context;
        getLocation();
    }

    public Location getLocation() {
        try {
            locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);

            // getting GPS status
            isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

            // getting network status
            boolean wifiEnabled = AndroidGPSTrackingActivity.wifiManager.isWifiEnabled();

            ConnectivityManager cm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
            NetworkInfo activeNetwork = cm.getActiveNetworkInfo();

            this.canGetLocation = true;

            // if DATA Enabled get lat/long using WIFI Services
            if (activeNetwork.isConnected()) {
                locationManager.requestLocationUpdates(
                        LocationManager.NETWORK_PROVIDER,
                        MIN_TIME_BW_UPDATES,
                        MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                Log.d("Network", "Network");
                if (locationManager != null) {
                    location = locationManager
                            .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

                }
            }
            // if WIFI Enabled get lat/long using WIFI Services
            if (wifiEnabled) {
                locationManager.requestLocationUpdates(
                        LocationManager.NETWORK_PROVIDER,
                        MIN_TIME_BW_UPDATES,
                        MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                Log.d("Network", "Network");
                if (locationManager != null) {
                    location = locationManager
                            .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

                }
            }
            // if GPS Enabled get lat/long using GPS Services
            if (isGPSEnabled) {
                if (location == null) {
                    locationManager.requestLocationUpdates(
                            LocationManager.GPS_PROVIDER,
                            MIN_TIME_BW_UPDATES,
                            MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                    Log.d("GPS Enabled", "GPS Enabled");
                    if (locationManager != null) {
                        location = locationManager
                                .getLastKnownLocation(LocationManager.GPS_PROVIDER);

                    }
                }
            }
            if (location != null) {
                latitude = location.getLatitude();
                longitude = location.getLongitude();
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

        return location;
    }

    /**
     * Stop using GPS listener
     * Calling this function will stop using GPS in your app
     * */
    public void stopUsingGPS(){
        if(locationManager != null){
            locationManager.removeUpdates(GPSTracker.this);
        }       
    }

    /**
     * Function to get latitude
     * */
    public double getLatitude(){
        if(location != null){
            latitude = location.getLatitude();
        }

        // return latitude
        return latitude;
    }

    /**
     * Function to get longitude
     * */
    public double getLongitude(){
        if(location != null){
            longitude = location.getLongitude();
        }

        // return longitude
        return longitude;
    }

    /**
     * Function to check GPS/wifi enabled
     * @return boolean
     * */
    public boolean canGetLocation() {
        return this.canGetLocation;
    }

    /**
     * Function to show settings alert dialog
     * On pressing Settings button will lauch Settings Options
     * */
    public void showSettingsAlert(){
        AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);

        // Setting Dialog Title
        alertDialog.setTitle("GPS is settings");

        // Setting Dialog Message
        alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");

        // On pressing Settings button
        alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int which) {
                Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                mContext.startActivity(intent);
            }
        });

        // on pressing cancel button
        alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                dialog.cancel();
            }
        });

        // Showing Alert Message
        alertDialog.show();
    }

    @Override
    public void onLocationChanged(Location location) {
    }

    @Override
    public void onProviderDisabled(String provider) {
    }

    @Override
    public void onProviderEnabled(String provider) {
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }

    @Override
    public IBinder onBind(Intent arg0) {
        return null;
    }

}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button android:id="@+id/btnShowLocation" 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Show Location"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true"/>

    <ToggleButton
        android:id="@+id/gps"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/btnShowLocation"
        android:layout_alignRight="@+id/btnShowLocation"
        android:layout_marginBottom="49dp"
        android:layout_marginRight="72dp"
        android:text="GPS"
         />

    <ToggleButton
        android:id="@+id/wifi"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/gps"
        android:layout_alignBottom="@+id/gps"
        android:layout_alignLeft="@+id/btnShowLocation"
        android:layout_marginLeft="79dp"
        android:text="WIFI" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/gps"
        android:layout_alignLeft="@+id/btnShowLocation"
        android:text="GPS"
        android:textSize="15sp" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textView1"
        android:layout_alignBottom="@+id/textView1"
        android:layout_marginLeft="61dp"
        android:layout_toRightOf="@+id/textView1"
        android:text="WIFI"
        android:textSize="15sp" />

</RelativeLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<uses-sdk android:minSdkVersion="8" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >
    <activity
        android:name=".AndroidGPSTrackingActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />

</manifest>

score 1 · Answer 3 · answered Nov 12 '13 at 13:04

Use the new Location API.

You'd have to include Google Play services into your project. Add this in onCreate:

mIntentService = new Intent(this,LocationService.class);
mPendingIntent = PendingIntent.getService(this, 1, mIntentService, 0);

int resp =GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
    if(resp == ConnectionResult.SUCCESS){
        locationclient = new LocationClient(this,this,this);
        locationclient.connect();
    }

And you'd have to override these methods:

@Override
protected void onDestroy() {
    super.onDestroy();
    if(locationclient!=null)
        locationclient.disconnect();
}

@Override
public void onConnected(Bundle connectionHint) {
    Log.i(TAG, "onConnected");
    //to get last location
    Location loc =locationclient.getLastLocation();

    //to get updates via service
    locationrequest = LocationRequest.create();
    locationrequest.setInterval(100);
    locationclient.requestLocationUpdates(locationrequest, mPendingIntent);
}

@Override
public void onDisconnected() {
    Log.i(TAG, "onDisconnected");
}

@Override
public void onConnectionFailed(ConnectionResult result) {
    Log.i(TAG, "onConnectionFailed");
}

@Override
public void onLocationChanged(Location location) {
    if(location!=null){
        Log.i(TAG, "Location Request :" + location.getLatitude() + "," + location.getLongitude());
    }

}

Here's the service where I'm creating a notification for every new location, you can remove that and update location there.

public class LocationService extends IntentService {

private String TAG = this.getClass().getSimpleName();
public LocationService() {
    super("Fused Location");
}

public LocationService(String name) {
    super("Fused Location");
}

@Override
protected void onHandleIntent(Intent intent) {

        Location location = intent.getParcelableExtra(LocationClient.KEY_LOCATION_CHANGED);
        if(location !=null){
            Log.i(TAG, "onHandleIntent " + location.getLatitude() + "," + location.getLongitude());
            NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); 
            Builder noti = new NotificationCompat.Builder(this);
            noti.setContentTitle("Fused Location");
            noti.setContentText(location.getLatitude() + "," + location.getLongitude());
            noti.setSmallIcon(R.drawable.ic_launcher);

            notificationManager.notify(1234, noti.build());

        }

}

}

I have to say that I resent needing to use the new location API. It relies on Google Play Services, which is a 68MB download when only 2 years ago phones were being sold with only 80-90MB available storage, so is a *huge* ask for people with old phones. But it seems that the `android.location` API *simply doesn't work* on many newer devices. :( — Jules, Sep 27 '16 at 15:47
@Jules Check out this [smart location lib](https://github.com/mrmans0n/smart-location-lib), it might help you. — Rahul Sainani, Sep 27 '16 at 20:57

score 0 · Answer 4 · answered Nov 08 '13 at 11:55

0

Follow the tutorial to get the location in Android app

answered Nov 08 '13 at 11:55

PgmFreek

6,324
3
33
47

I want my service to be notified when new fix is available. I did this in an old project of myne, but don't remember how :) – Davita Nov 11 '13 at 08:20

score 0 · Answer 5 · answered Nov 08 '13 at 11:56

0

You should take your location by implementing LocationListener

@Override
public void onLocationChanged(Location loc) {
}

answered Nov 08 '13 at 11:56

Suvitruf - Andrei Apanasik

5,423
7
47
83

score 0 · Answer 6 · answered Nov 08 '13 at 12:08

Take a look at this implementation, works really nice and i have tested it on several devices.

package ro.gebs.captoom.activities;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.Toast;

import com.bugsense.trace.BugSenseHandler;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import ro.gebs.captoom.R;
import ro.gebs.captoom.database.ReceiptDataSource;
import ro.gebs.captoom.utils.Constants;
import ro.gebs.captoom.utils.Utils;

public class LocationActivity extends FragmentActivity {

    private GoogleMap map;
    private long rec_id;
    private String address;
    private Marker selectedLoc;
    private boolean isSessionClosed;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        BugSenseHandler.initAndStartSession(this, Constants.BugSenseKEY);
        setContentView(R.layout.preview_location);
        RelativeLayout cancel_btn = (RelativeLayout) findViewById(R.id.cancel_btn);
        LinearLayout save_location_btn = (LinearLayout) findViewById(R.id.delete_btn);

        save_location_btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                if (address != null) {
                    ReceiptDataSource r = new ReceiptDataSource();
                    r.updateReceiptLocation(rec_id, address);
                    Intent returnIntent = new Intent(getBaseContext(), EditReceiptActivity.class);
                    returnIntent.putExtra("result", address);
                    setResult(RESULT_OK, returnIntent);
                    finish();
                } else {
                    Utils.showToast(getApplicationContext(), getString(R.string.c_unknownLocation), Toast.LENGTH_SHORT);
                }
            }
        });

        cancel_btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                onBackPressed();
            }
        });

        if (map == null) {

            map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();

            if (isGoogleMapsInstalled()) {
                if (map != null) {
                    retrieveLocation();
                }
            } else {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage("Install Google Maps");
                builder.setCancelable(false);
                builder.setPositiveButton("Install", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=com.google.android.apps.maps"));
                        startActivity(intent);
                        finish();
                    }
                });
                AlertDialog dialog = builder.create();
                dialog.show();
            }
        }

    }

    @Override
    protected void onResume() {
        super.onResume();
        if (isSessionClosed) {
            BugSenseHandler.startSession(this);
            isSessionClosed = false;
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        BugSenseHandler.closeSession(this);
        isSessionClosed = true;
    }

    @Override
    public void onBackPressed() {
        map.clear();
        super.onBackPressed();
    }

    private void retrieveLocation() {
        Intent intent = getIntent();
        address = intent.getStringExtra("location");
        assert address != null;
        if (address.equalsIgnoreCase("")) {
            address = Utils.getCurrentLocation(LocationActivity.this);
        }
        rec_id = intent.getLongExtra("receipt_to_update_location", 0);
        final Geocoder geocoder = new Geocoder(this, Locale.US);
        double latitude = 0, longitude = 0;
        try {
            List<Address> loc = geocoder.getFromLocationName(address, 5);
            if (loc.size() > 0) {
                latitude = loc.get(0).getLatitude();
                longitude = loc.get(0).getLongitude();
            } else {
                Utils.showToast(LocationActivity.this, getString(R.string.UnableToFindLocation), Toast.LENGTH_SHORT);
            }


            selectedLoc = map.addMarker(new MarkerOptions().position(new LatLng(latitude, longitude)).title(address).draggable(true));
            map.setOnMarkerDragListener(new GoogleMap.OnMarkerDragListener() {
                @Override
                public void onMarkerDragStart(Marker marker) {

                }

                @Override
                public void onMarkerDrag(Marker marker) {

                }

                @Override
                public void onMarkerDragEnd(Marker marker) {
                    try {
                        List<Address> addresses = geocoder.getFromLocation(selectedLoc.getPosition().latitude, selectedLoc.getPosition().longitude, 1);
                        StringBuilder sb = new StringBuilder();
                        if (addresses.size() > 0) {
                            Address address = addresses.get(0);

                            if (address.getAddressLine(0) != null)
                                sb.append(address.getAddressLine(0)).append(", ");
                            if (address.getLocality() != null)
                                sb.append(address.getLocality()).append(", ");
                            if (address.getCountryName() != null)
                                sb.append(address.getCountryName());
                        }

                        address = sb.toString();
                    } catch (IOException e) {
                    }

                }
            });

            map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude, longitude), 12));

            // Zoom in, animating the camera.
            map.animateCamera(CameraUpdateFactory.zoomTo(12), 2000, null);

        } catch (IOException e) {
            Log.e("IOException", e.getMessage());
            Utils.showToast(LocationActivity.this, getString(R.string.c_unknownLocation), Toast.LENGTH_LONG);
        }

    }

    public boolean isGoogleMapsInstalled() {
        try {
            getPackageManager().getApplicationInfo("com.google.android.apps.maps", 0);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            return false;
        }
    }


}

score 0 · Answer 7 · answered Nov 12 '13 at 10:07

0

I see you implement the intent.putExtra after you get the extra! You should do the put in the activity that receives the location data and when you want to receive the data from the intent.extra you should do this:

Bundle extras = getIntent().getExtras();
    if (extras != null) {
        latitude= (double)extras.getDouble("lat");
        longitude=(double)extras.getDouble("lon");
    }

answered Nov 12 '13 at 10:07

Remi

1,261
1
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And for getting the location you should follow this: http://stackoverflow.com/questions/1513485/how-do-i-get-the-current-gps-location-programmatically-in-android – Remi Nov 15 '13 at 15:54

Android location api not working

7 Answers7