How Do I save the user's image fetched from fbprofilepictureview using the Facebook SDK

Question

So I'm implementing the Facebook login button in an iOS app I'm currently working on, I'm trying to save the user's profile picture that's accessed using this line;

self.profilePicture.profileID = user.id;

I haven't had any luck storing that image for use elsewhere in the app. I have tried a number of methods including this approach

imageUrl=[NSString stringWithFormat:@"https://graph.facebook.com/%@/picture?redirect=true", user.username];

Any help is welcome!

Answer 1

You need to use user.objectID and not user.username.

You can also use my drop-in replacement for FBProfilePictureView, DBFBProfilePictureView. This exposes the imageView as a readonly property. Using that, your code would be something like this...

self.profilePicture.completionHandler = ^(DBFBProfilePictureView* view, NSError* error){
    if(error) {
        view.showEmptyImage = YES;
        NSLog(@"Loading profile picture failed with error: %@", error);
    } else {
        UIImage *image = view.imageView.image;
        NSData *imageData = UIImagePNGRepresentation(image);
        [imageData writeToFile:filename atomically:NO];
    }
};