How to post uiimage instead of image url from fbconnect feed dialog? - iphone

Question

I need to post uiimage (screenshot taken from app) instead of url to post in facebook from facebook dialog along with user option to enter text. how it can be achieved. some help is appreciated.

Answer 1

You could try something like this to post the photo part. I'm sure the text is just another field.
#try {
// make sure your permissions are set
NSArray *permissions = [[NSArray alloc] initWithObjects:
#"publish_stream",
nil];
[FBSession openActiveSessionWithPublishPermissions:permissions
defaultAudience:FBSessionDefaultAudienceOnlyMe
allowLoginUI:NO
completionHandler:^(FBSession *session, FBSessionState state, NSError *error){
NSLog(#"completion handler.");
}];
[FBRequestConnection startForUploadPhoto:imageToUpload
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
if (!error) {
UIAlertView *tmp = [[UIAlertView alloc]
initWithTitle:#"Success"
message:#"Photo Uploaded!"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:#"Ok", nil];
[tmp show];
} else {
UIAlertView *tmp = [[UIAlertView alloc]
initWithTitle:#"Error"
message:#"Error uploading image to Facebook."
delegate:self
cancelButtonTitle:nil
otherButtonTitles:#"Ok", nil];
[tmp show];
}
}];
}
#catch (NSException *exception) {
NSLog(#"-----> !! ERROR UPLOADING IMAGE TO FACEBOOK !!");
}

Answer 2

to post image in facebook through fbconnect few steps need to follow with the fbconnect api.
need to login in facebook then it check about the access key and the expiry date.
if those are not nil, there it go to post the image i.e
NSData *imageData = UIImagePNGRepresentation(cellImageView.image);
NSMutableDictionary *params = [[NSMutableDictionary alloc]initWithObjectsAndKeys:#"app name",#"message",imageData,#"source", nil];
[facebook requestWithGraphPath:#"me/photos" andParams:params andHttpMethod:#"POST" andDelegate:self];
if not it go for the access key and expiry key and then to the image post code as written above.
for more download fbconnect api and look at the login and have a look on the code with brakepoints.
for this user need the login delegate and fb request delegate.
also don't forget to initialize facebook obj with app id and to set its delegate self.