如何在fb中获取好友头像-HowToGetFriendsProfilePicinfb

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Get the id (or the nick) of the user, and get the picture from https://graph.facebook.com/idOrNick/picture
This works without any kind of auth.
Small sample:

获取用户的id(或昵称)，并从https://graph.facebook.com/idOrNick/picture中获取图片，无需任何类型的auth。小样本:

NSString id = getTheIdOrNick;
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://graph.facebook.com/%@/picture", id]];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *image = [UIImage imageWithData:data];
//UIImageView *imgView = [[UIImageView alloc]init];
//imgView.image = image;