Upload Photo to server including location information (Lat/Long)

Question

Why is it so hard to upload a photo with Location data in its exif to the server? I am breaking my head not being able to solve this. Whenever I am sending the photo to the server all of its location information is being stripped off from the photo.

I have tried getting UIImage from the UIImagePickerController using both

NSURL *url = [info objectForKey:UIImagePickerControllerReferenceURL];

and also UIImagePickerControllerOriginalImage.

Kindly someone help me

Answer 1

To preserve the exif info, you need to use the raw data, not just the UIImage. You can get it from the ALAsset's defaultRepresentation, something like this:

ALAssetRepresentation* representation = [myAsset defaultRepresentation];
int size = representation.size;
NSMutableData* data = [[NSMutableData alloc]initWithCapacity:size];
void* buffer = [data mutableBytes];
[representation getBytes:buffer fromOffset:0 length:size error:nil];
data = [NSMutableData dataWithBytes:buffer length:size];

I'm not near xcode to test it right now, but it should work.

Answer 2

You can use CLLocation to get the current location. At the time of image upload to server you need to need to get the current location through CLLocationManager and update this location parameters to server with the captured image.

Please check the reference link for location update and how to upload photos