Обновление местоположения из сети не работает после изменения настроек местоположения

Question

Когда мои службы определения местоположения отключены, и я хочу включить его для использования моего приложения, работает только GPS provider, а network provider - нет. Это wolud работает только после перезагрузки. У меня эта проблема на nexus4, но и на других устройствах. Я создал тестовое приложение с той же проблемой. Буду признателен, если кто-то поможет мне решить эту проблему.

public class MainActivity extends Activity { 

protected static final String TAG = "Gpstest"; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 


    initLocationManager(); 

} 
private void initLocationManager() { 

    locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE); 
    locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener); 
    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener); 

} 

LocationManager locationManager; 

// Define a listener that responds to location updates 
LocationListener locationListener = new LocationListener() { 

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

    public void onProviderEnabled(String provider) {} 

    public void onProviderDisabled(String provider) {} 

    @Override 
    public void onLocationChanged(Location location) { 
     Log.d(TAG,"onLocationChanged "+location.getProvider()); 

    } 
}; 

@Override 
protected void onStop() { 
    super.onStop(); 
    locationManager.removeUpdates(locationListener); 
} 

}

манифеста

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

<uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="18" /> 
<!-- Location --> 
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> 
<application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 
    <activity 
     android:name="com.example.gpstext.MainActivity" 
     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> 

Answer 1

locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener); 
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener); 

Как вы можете видеть в Або ve code, вы назначаете двух разных провайдеров одному locationManager и тому же locationListener.

Эта реализация приводит к данным, полученным от GPS_Provider, а не от сети.

Попробуйте использовать двух разных менеджеров местоположения и разных локальных пользователей, чтобы получить результаты от обоих поставщиков.

public class MainActivity extends Activity implements 
    GooglePlayServicesClient.ConnectionCallbacks, 
    GooglePlayServicesClient.OnConnectionFailedListener { 

protected static final int START_GPS_SETTINGS = 1; 
GoogleMap googleMap; 
Dialog alertDialog = null; 
LocationManager locationManager = null; 
LocationManager GPSlocationManager = null; 
LocationManager NetworklocationManager = null; 

private LocationClient locationclient; 

Location location; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

    if (GooglePlayServicesUtil.isGooglePlayServicesAvailable(this) == ConnectionResult.SUCCESS) { 

     locationclient = new LocationClient(this, this, this); 
     locationclient.connect(); 

    } else { 
     Toast.makeText(
       this, 
       "Google Play Service Error " 
         + GooglePlayServicesUtil 
           .isGooglePlayServicesAvailable(this), 
       Toast.LENGTH_LONG).show(); 

    } 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 

@Override 
protected void onStart() { 
    // TODO Auto-generated method stub 
    super.onStart(); 

    googleMap = ((MapFragment) getFragmentManager().findFragmentById(
      R.id.mapFragment)).getMap(); 

    if (googleMap != null) { 

     googleMap.setMyLocationEnabled(true); 
     googleMap.getUiSettings().setZoomControlsEnabled(true); 
     googleMap.getUiSettings().setMyLocationButtonEnabled(true); 
     googleMap.getUiSettings().setAllGesturesEnabled(true); 

    } 

} 

public void locateMe(View view) { 

    checkforGPS(); 

} 

private void checkforGPS() { 

    // checking whether the gps is enabled on the device or not 

    if (!((LocationManager) this.getSystemService(Context.LOCATION_SERVICE)) 
      .isProviderEnabled(LocationManager.GPS_PROVIDER)) { 

     // GPS is not enabled 

     // 1. Instantiate an AlertDialog.Builder with its constructor 
     AlertDialog.Builder builder = new AlertDialog.Builder(this); 

     // 2. Chain together various setter methods to set the dialog 
     // characteristics 
     builder.setMessage(R.string.generic_gps_not_found) 
       .setTitle(R.string.generic_gps_not_found_message_title) 
       .setPositiveButton(R.string.generic_ok, 
         new DialogInterface.OnClickListener() { 
          @Override 
          public void onClick(DialogInterface dialog, 
            int id) { 
           // User selected yes 
           Intent intent = new Intent(
             Settings.ACTION_LOCATION_SOURCE_SETTINGS); 
           startActivityForResult(intent, 
             START_GPS_SETTINGS); 
          } 
         }); 

     // 3. Get the AlertDialog from create() 
     AlertDialog dialog = builder.create(); 
     dialog.setCancelable(false); 
     dialog.show(); 

    } else { 

     // GPS is enabled 

     startGettingLocation(); 
    } 

} 

public void captureImage(View view) { 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 

    super.onActivityResult(requestCode, resultCode, data); 

    if (resultCode == RESULT_CANCELED) { 

     switch (requestCode) { 
     case START_GPS_SETTINGS: 

      startGettingLocation(); 

      break; 
     } 

    } 
} 

private void startGettingLocation() { 

    getLocationFromLocationClient(); 

    getLocationFromNetworkPriver(); 

    getLocationFromGPSPriver(); 

    final Handler handler1 = new Handler(); 
    handler1.postDelayed(new Runnable() { 
     @Override 
     public void run() { 
      // Do something after 3000ms 
      showDialogBox(); 

      getLocation(); 

     } 
    }, 20000); 

} 

public void animateGoogleMap() { 

    if (location != null && googleMap != null) { 

     LatLng latLng = new LatLng(location.getLatitude(), 
       location.getLongitude()); 

     googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

     googleMap.animateCamera(CameraUpdateFactory.zoomTo(17)); 
     // googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

     googleMap.addMarker(new MarkerOptions().position(latLng).icon(
       BitmapDescriptorFactory 
         .fromResource(R.drawable.trip_start_icon))); 

    } else { 

     // Something went wrong. 
     // Restarting the activity 

     reload(); 
    } 

} 

/** 
* code for getting the current location 
*/ 

private void showDialogBox() { 
    alertDialog = new Dialog(this); 

    alertDialog.setCanceledOnTouchOutside(false); 
    alertDialog.setCancelable(false); 

    alertDialog.setTitle("Location Updates...."); 

    LayoutInflater layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    View v = layoutInflater.inflate(R.layout.dialog_layout, null); 

    // Setting Dialog Title 
    ((TextView) v.findViewById(R.id.header)) 
      .setText("Location Updates...."); 

    // Setting Dialog Message 
    ((TextView) v.findViewById(R.id.text_msg)) 
      .setText("Please wait for updates"); 

    // Showing Alert Message 
    alertDialog.setContentView(v); 
    alertDialog.show(); 

} 

private void getLocation() { 

    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 

    Criteria criteria = new Criteria(); 
    criteria.setAccuracy(Criteria.ACCURACY_COARSE); 

    String provider = locationManager.getBestProvider(criteria, false); 

    Log.e("provider", provider); 

    locationManager.requestLocationUpdates(provider, 1000, 1, 
      myLocationListener); 

} 

private LocationListener myLocationListener = new LocationListener() { 

    @Override 
    public void onStatusChanged(String provider, int status, Bundle extras) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderEnabled(String provider) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderDisabled(String provider) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onLocationChanged(Location locationBest) { 

     if (locationBest == null) 
      return; 
     Log.e("Best Provider", "Best Provider"); 
     Log.e("latitude", locationBest.getLatitude() + ""); 
     Log.e("longitude", locationBest.getLongitude() + ""); 
     Log.e("accuracy", locationBest.getAccuracy() + ""); 

     removeLocationUpdatesAndAddMarker(locationBest); 

    } 
}; 
private LocationListener myGPSLocationListener = new LocationListener() { 

    @Override 
    public void onStatusChanged(String provider, int status, Bundle extras) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderEnabled(String provider) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderDisabled(String provider) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onLocationChanged(Location locationGPS) { 

     if (locationGPS == null) 
      return; 

     Log.e("GPS Provider", "GPS Provider"); 
     Log.e("latitude", locationGPS.getLatitude() + ""); 
     Log.e("longitude", locationGPS.getLongitude() + ""); 
     Log.e("accuracy", locationGPS.getAccuracy() + ""); 

     removeLocationUpdatesAndAddGPSMarker(locationGPS); 

    } 
}; 
private LocationListener myNetworkLocationListener = new LocationListener() { 

    @Override 
    public void onStatusChanged(String provider, int status, Bundle extras) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderEnabled(String provider) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderDisabled(String provider) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onLocationChanged(Location locationNetwork) { 

     if (locationNetwork == null) 
      return; 

     Log.e("Network Provider", "Network Provider"); 
     Log.e("latitude", locationNetwork.getLatitude() + ""); 
     Log.e("longitude", locationNetwork.getLongitude() + ""); 
     Log.e("accuracy", locationNetwork.getAccuracy() + ""); 

     removeLocationUpdatesAndAddNetworkMarker(locationNetwork); 

    } 
}; 

private void removeLocationUpdatesAndAddMarker(
     Location locationFromBestLocationProvider) { 

    // Removing the listener from giving the location 

    if (locationManager != null) { 

     locationManager.removeUpdates(myLocationListener); 
     locationManager = null; 

    } 

    WriteLogToFile.appendLog(
      this.getString(R.string.app_name), 
      "BestProvider", 
      "BestProvider", 
      "Location :\n" + "Latitude:" 
        + locationFromBestLocationProvider.getLatitude() 
        + "\nLongitude:" 
        + locationFromBestLocationProvider.getLongitude() 
        + "\nAccuracy:" 
        + locationFromBestLocationProvider.getAccuracy()); 

    location = locationFromBestLocationProvider; 

    if (alertDialog != null) 
     alertDialog.dismiss(); 

    animateGoogleMap(); 

} 

private void removeLocationUpdatesAndAddGPSMarker(Location locationFromGPS) { 

    if (GPSlocationManager != null) { 

     GPSlocationManager.removeUpdates(myGPSLocationListener); 
     GPSlocationManager = null; 

    } 

    WriteLogToFile.appendLog(this.getString(R.string.app_name), "GPS", 
      "GPS", 
      "Location :\n" + "Latitude:" + locationFromGPS.getLatitude() 
        + "\nLongitude:" + locationFromGPS.getLongitude() 
        + "\nAccuracy:" + locationFromGPS.getAccuracy()); 

    LatLng latLng = new LatLng(locationFromGPS.getLatitude(), 
      locationFromGPS.getLongitude()); 

    googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

    googleMap.animateCamera(CameraUpdateFactory.zoomTo(17)); 
    // googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

    googleMap.addMarker(new MarkerOptions().position(latLng).icon(
      BitmapDescriptorFactory.fromResource(R.drawable.gps_provider))); 
} 

private void removeLocationUpdatesAndAddNetworkMarker(
     Location locationFromNetwork) { 

    if (NetworklocationManager != null) { 

     NetworklocationManager.removeUpdates(myNetworkLocationListener); 
     NetworklocationManager = null; 

    } 

    WriteLogToFile.appendLog(
      this.getString(R.string.app_name), 
      "Network", 
      "Network", 
      "Location :\n" + "Latitude:" 
        + locationFromNetwork.getLatitude() + "\nLongitude:" 
        + locationFromNetwork.getLongitude() + "\nAccuracy:" 
        + locationFromNetwork.getAccuracy()); 

    LatLng latLng = new LatLng(locationFromNetwork.getLatitude(), 
      locationFromNetwork.getLongitude()); 

    googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

    googleMap.animateCamera(CameraUpdateFactory.zoomTo(17)); 
    // googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

    googleMap.addMarker(new MarkerOptions().position(latLng).icon(
      BitmapDescriptorFactory 
        .fromResource(R.drawable.network_provider))); 
} 

public void reload() { 

    Intent intent = getIntent(); 
    overridePendingTransition(0, 0); 
    intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); 
    finish(); 

    overridePendingTransition(0, 0); 
    startActivity(intent); 
} 

private void getLocationFromLocationClient() { 

    if (locationclient != null && locationclient.isConnected()) { 
     Location loc = locationclient.getLastLocation(); 

     WriteLogToFile.appendLog(this.getString(R.string.app_name), 
       "LocationClient", "LocationClient", 
       "Last Known Location :\n" + "Latitude:" + loc.getLatitude() 
         + "\nLongitude:" + loc.getLongitude() 
         + "\nAccuracy:" + loc.getAccuracy()); 

     LatLng latLng = new LatLng(loc.getLatitude(), loc.getLongitude()); 

     googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

     googleMap.animateCamera(CameraUpdateFactory.zoomTo(17)); 
     // googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng)); 

     googleMap.addMarker(new MarkerOptions().position(latLng).icon(
       BitmapDescriptorFactory 
         .fromResource(R.drawable.trip_end_icon))); 

    } 

} 

private void getLocationFromGPSPriver() { 

    GPSlocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 

    GPSlocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 
      1000, 1, myGPSLocationListener); 

} 

private void getLocationFromNetworkPriver() { 

    NetworklocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); 

    NetworklocationManager.requestLocationUpdates(
      LocationManager.NETWORK_PROVIDER, 1000, 1, 
      myNetworkLocationListener); 

} 

@Override 
public void onConnectionFailed(ConnectionResult arg0) { 
    // TODO Auto-generated method stub 

} 

@Override 
public void onConnected(Bundle arg0) { 
    // TODO Auto-generated method stub 

} 

@Override 
public void onDisconnected() { 
    // TODO Auto-generated method stub 

} 

} 

Этот код поможет вам лучше понять, как реализовать различные типы поставщиков

Answer 2

Ваш код работает отлично. Пробовал в устройстве С разрешения

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

и код

public class MainActivity extends Activity { 
protected static final String TAG = "Gpstest"; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 


    initLocationManager(); 

} 
private void initLocationManager() { 

    locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE); 
    locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener); 
} 

LocationManager locationManager; 

// Define a listener that responds to location updates 
LocationListener locationListener = new LocationListener() { 

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

    public void onProviderEnabled(String provider) {} 

    public void onProviderDisabled(String provider) {} 

    @Override 
    public void onLocationChanged(Location location) { 
     Log.d(TAG, "onLocationChanged " + location.getProvider()); 
     Toast.makeText(MainActivity.this, "Lat:" + location.getLatitude() 
       +"Long" + location.getLongitude(),Toast.LENGTH_LONG).show(); 

    } 
}; 

@Override 
protected void onStop() { 
    super.onStop(); 
    locationManager.removeUpdates(locationListener); 
} 
} 

Убедитесь, что Wi-Fi включен.