gps – Page 2 – Tarik Billa

Getting GPS coordinates on Windows phone 7

December 3, 2023 by Tarik

Here’s a simple example: GeoCoordinateWatcher watcher; watcher = new GeoCoordinateWatcher(GeoPositionAccuracy.Default) { MovementThreshold = 20 }; watcher.PositionChanged += this.watcher_PositionChanged; watcher.StatusChanged += this.watcher_StatusChanged; watcher.Start(); private void watcher_StatusChanged(object sender, GeoPositionStatusChangedEventArgs e) { switch (e.Status) { case GeoPositionStatus.Disabled: // location is unsupported on this device break; case GeoPositionStatus.NoData: // data unavailable break; } } private void watcher_PositionChanged(object sender, GeoPositionChangedEventArgs<GeoCoordinate> … Read more

Android GPS location accuracy issue

November 29, 2023 by Tarik

How to get coordinates of an address in android

September 25, 2023 by Tarik

Geocoder geocoder = new Geocoder(<your context>); List<Address> addresses; addresses = geocoder.getFromLocationName(<String address>, 1); if(addresses.size() > 0) { double latitude= addresses.get(0).getLatitude(); double longitude= addresses.get(0).getLongitude(); }

How to stop location manager?

September 19, 2023 by Tarik

You should call the method removeUpdates inside the method onPause: @Override protected void onPause() { super.onPause(); locationManager.removeUpdates(this); Log.i(TAG, “onPause, done”); }

Change Location Mode to High Accuracy Programmatically Android

September 18, 2023 by Tarik

It is possible to get the device’s current location mode since API level 19 (Kitkat): public int getLocationMode(Context context) { return Settings.Secure.getInt(activityUnderTest.getContentResolver(), Settings.Secure.LOCATION_MODE); } These are the possible return values (see here): 0 = LOCATION_MODE_OFF 1 = LOCATION_MODE_SENSORS_ONLY 2 = LOCATION_MODE_BATTERY_SAVING 3 = LOCATION_MODE_HIGH_ACCURACY So you want something like if(getLocationMode(context) == 3) { // do … Read more

How to get Android GPS location

September 18, 2023 by Tarik

Here’s your problem: int latitude = (int) (location.getLatitude()); int longitude = (int) (location.getLongitude()); Latitude and Longitude are double-values, because they represent the location in degrees. By casting them to int, you’re discarding everything behind the comma, which makes a big difference. See “Decimal Degrees – Wiki”

Adding distance to a GPS coordinate

September 16, 2023 by Tarik

P0(lat0,lon0) : initial position (unit : degrees) dx,dy : random offsets from your initial position in meters You can use an approximation to compute the position of the randomized position: lat = lat0 + (180/pi)*(dy/6378137) lon = lon0 + (180/pi)*(dx/6378137)/cos(lat0) This is quite precise as long as the random distance offset is below 10-100 km … Read more

Reading the GPS data from the image returned by the camera in iOS iphone

September 13, 2023 by Tarik

The problem is that since iOS 4 UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; strips the geolocation out. To solve this problem you have to use the original photo path to get access to the full image metadata. With something like this: – (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { NSURL *referenceURL = [info objectForKey:UIImagePickerControllerReferenceURL]; ALAssetsLibrary *library = [[ALAssetsLibrary … Read more

Rotating an ImageView like a compass (with the “north pole” set elsewhere)

September 10, 2023 by Tarik

Your rotateImageView function should work just fine, however there are some things that needs to be changed in your rotation calculations. //This is where we choose to point it float direction = azimuth + LocationObj.bearingTo( destinationObj ); rotateImageView( arrow, R.drawable.arrow, direction ); The problem is that bearingTo will give you a range from -180 to … Read more

Open Settings app from another app programmatically in iPhone

September 4, 2023 by Tarik

Good news : You can open settings apps programmatically like this (works only from iOS8 onwards). If you are using Swift 3.0: UIApplication.shared.open(URL(string: UIApplicationOpenSettingsURLString)!) If you are using Objective-C: [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]; For other lower versions (less than iOS8) its not possible to programatically open the settings app.