How to share my current location to UIActivityViewController?

Question

I know i can add things like text, URL, images to UIActivityViewController , but how to add my current location with a thumbnail of my location like in the tweet shown below

Answer 1

The other two answers use the complex AddressBook framework to create a vCard. It's easier to do it like this:

NSString *vcardString = [NSString stringWithFormat:@"BEGIN:VCARD\n"
                         "VERSION:3.0\n"
                         "    N:;Shared Location;;;\n"
                         "   FN:Shared Location\n"
                         "item1.URL;type=pref:http://maps.apple.com/?ll=%f,%f\n"
                         "item1.X-ABLabel:map url\n"
                         "END:VCARD", lat, lng];

Then save it to a file, get the NSURL of that file, and share it with UIActivityViewController as demonstrated in artillery129's answer.