Назначение настройки «Открыть местоположение» после предоставления разрешения.

Question

в моем приложении я запрашиваю разрешение на местоположение у пользователя после предоставления разрешения. Я хочу проверить, включено ли местоположение, если оно не активно, тогда я хочу, чтобы пользователь перешел к действию настроек, где они могут включить местоположение.Вот код, который я пытаюсь выполнить вышеупомянутым условием, но после предоставления разрешения, когда местоположение не включено, оно не переходит к действию настроек.

 if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

        if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED){

            ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, 1);

            } 

  //This will run when permission is already granted.

else {

            if( !locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){


                startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));

            }

            else {
                mLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

                if (mLocation != null) {

                    String str1 = hereLocation(mLocation.getLatitude(), mLocation.getLongitude());
                    fragText.setText(str1);

                    sendLocation(str1);

                }

            }

        }

    }

 else{

 //For Api level below 23

   if( !locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) 
{

           startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));

        }

   else {
                mLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

                if (mLocation != null) {

               String str1 = hereLocation(mLocation.getLatitude(), mLocation.getLongitude());
               fragText.setText(str1);

                    sendLocation(str1);

                }

            }

   }

    @Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);

    if(grantResults.length>0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){


        if(ContextCompat.checkSelfPermission(getActivity(),Manifest.permission.ACCESS_COARSE_LOCATION)
                == PackageManager.PERMISSION_GRANTED){

           if( !locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){

                startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));

            }

            else {
                mLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

                if (mLocation != null) {

                   String str1 = hereLocation(mLocation.getLatitude(), mLocation.getLongitude());
                   fragText.setText(str1);

                   sendLocation(str1);

                }

            }
        }
        else{

            progressBar.setVisibility(View.INVISIBLE);

            TastyToast.makeText(getActivity(),"Unable to get location",TastyToast.LENGTH_SHORT,TastyToast.ERROR).show();
        }

    }
}

Пожалуйста, дайте мне знать проблему в приведенном выше коде.

СПАСИБО

Answer 1

public class GPSTracker extends Service implements LocationListener {
    // 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
    private final Context mContext;
    // Declaring a Location Manager
    protected LocationManager locationManager;
    // flag for GPS status
    boolean isGPSEnabled = false;
    // flag for network status
    boolean isNetworkEnabled = false;
    // flag for GPS status
    boolean canGetLocation = false;
    Location location; // location
    double latitude; // latitude
    double longitude; // longitude

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

    @SuppressLint("MissingPermission")
    public Location getLocation() {
        try {
            locationManager = (LocationManager) mContext
                    .getSystemService(LOCATION_SERVICE);
            // getting GPS status
            isGPSEnabled = locationManager
                    .isProviderEnabled(LocationManager.GPS_PROVIDER);
            // getting network status
            isNetworkEnabled = locationManager
                    .isProviderEnabled(LocationManager.NETWORK_PROVIDER);
            if (!isGPSEnabled && !isNetworkEnabled) {
                // no network provider is enabled
            } else {
                this.canGetLocation = true;
                if (isNetworkEnabled) {
                    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 (location != null) {
                            latitude = location.getLatitude();
                            longitude = location.getLongitude();
                        }
                    }
                }
                // 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) {
// TODO Auto-generated method stub
    }

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

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

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
        return null;
    }
}

в активности получить значение с проверкой

//init

gps = new GPSTracker(yourActivity.this);

 if (gps.canGetLocation()) {
                lat = String.valueOf(gps.getLatitude());
                lon = String.valueOf(gps.getLongitude());
                updateStatusLocal();
            } else {
                gps.showSettingsAlert();
            }