I'm working on an Android version of an app that uses Facebook for authorization and for retrieving user's friend list.
As of SDK v.2.0, it became pretty hard to get list of friends that hadn't installed your app, but I made it work and now I need to get links to friends profile pictures (avatars). But Facebook does not want to return normal IDs for friends that haven't installed the app. For example, if a friend installed an app then FB returns its ID as digits, something like this 651651616851, and if not then FB returns string of chars like "glkjrgbdjrbgjdrbhgjhLFKBfEFbFkjgnrg".
If I use digit-like ID to retrieve photo, it works, but if I try to use charlike ID, FB returns an 803 error.My question is how do I get normal IDs or how to get friends profile pictures?