Extract location information from photos

I'm trying to develop a photo geotagging app. How do I extract GPS information from geotagged photos, so that i can Tag it into MapView? Photos are geotagged, which meth开发者_StackOverflow社区ods and classes should I call to retrieve the information?

Please do tell me if the my question is not clear.

Thanks in advance :)

You need to use a library that can read EXIF information. Android comes with one: android.media.ExifInterface. Documentation here.