Facebook sdk post on wall on iPhone app - iphone

Question

I have a problem with implementing Facebook posting on wall in my iPhone application.
I installed SDK and linked framework
login is working fine. here's the code:
-(IBAction)loginButtonPressed:(id)sender
{
NSLog(#"loginButtonPressed: called");
AppDelegate *appdel=[[UIApplication sharedApplication] delegate];
appdel.facebookSession=[[FBSession alloc] init];
[appdel.facebookSession openWithCompletionHandler:^(FBSession *session,
FBSessionState status,
NSError *error)
{
//
}];
}
But I have a problem with posting message on user's wall. Here's the code:
-(IBAction)likeButtonPressed:(id)sender
{
NSLog(#"likeButtonPressed: called");
// Post a status update to the user's feedm via the Graph API, and display an alert view
// with the results or an error.
NSString *message = #"test message";
NSDictionary *params = [NSDictionary dictionaryWithObject:message forKey:#"message"];
// use the "startWith" helper static on FBRequest to both create and start a request, with
// a specified completion handler.
[FBRequest startWithGraphPath:#"me/feed"
parameters:params
HTTPMethod:#"POST"
completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
[self showAlert:message result:result error:error];
}];
}
Help me please. What's wrong with my code? Or should I add some permissions to login request?

Answer 1

this code worked for me.
First we must
#import <FBiOSSDK/FacebookSDK.h>
then
#property (strong, nonatomic) FBRequestConnection *requestConnection;
and of course do not forget to synthesize:
#synthesize requestConnection;
the code itself:
-(IBAction)likeButtonPressed:(id)sender
{
NSLog(#"likeButtonPressed: called");
// FBSample logic
// Check to see whether we have already opened a session.
if (FBSession.activeSession.isOpen)
{
// login is integrated with the send button -- so if open, we send
[self postOnWall];
}
else
{
[FBSession sessionOpenWithPermissions:[NSArray arrayWithObjects:#"publish_stream", nil]
completionHandler:
^(FBSession *session,
FBSessionState status,
NSError *error)
{
// if login fails for any reason, we alert
if (error)
{
NSLog(#" login failed");
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
// if otherwise we check to see if the session is open, an alternative to
// to the FB_ISSESSIONOPENWITHSTATE helper-macro would be to check the isOpen
// property of the session object; the macros are useful, however, for more
// detailed state checking for FBSession objects
}
else if (FB_ISSESSIONOPENWITHSTATE(status))
{
NSLog(#" sending post on wall request...");
// send our requests if we successfully logged in
[self postOnWall];
}
}];
};
}
- (void)postOnWall
{
NSNumber *testMessageIndex=[[NSNumber alloc] init];
if ([[NSUserDefaults standardUserDefaults] objectForKey:#"testMessageIndex"]==nil)
{
testMessageIndex=[NSNumber numberWithInt:100];
}
else
{
testMessageIndex=[[NSUserDefaults standardUserDefaults] objectForKey:#"testMessageIndex"];
};
testMessageIndex=[NSNumber numberWithInt:[testMessageIndex intValue]+1];
[[NSUserDefaults standardUserDefaults] setObject:testMessageIndex forKey:#"testMessageIndex"];
[[NSUserDefaults standardUserDefaults] synchronize];
// create the connection object
FBRequestConnection *newConnection = [[FBRequestConnection alloc] init];
// create a handler block to handle the results of the request for fbid's profile
FBRequestHandler handler =
^(FBRequestConnection *connection, id result, NSError *error) {
// output the results of the request
[self requestCompleted:connection forFbID:#"me" result:result error:error];
};
// create the request object, using the fbid as the graph path
// as an alternative the request* static methods of the FBRequest class could
// be used to fetch common requests, such as /me and /me/friends
NSString *messageString=[NSString stringWithFormat:#"wk test message %i", [testMessageIndex intValue]];
FBRequest *request=[[FBRequest alloc] initWithSession:FBSession.activeSession graphPath:#"me/feed" parameters:[NSDictionary dictionaryWithObject:messageString forKey:#"message"] HTTPMethod:#"POST"];
// add the request to the connection object, if more than one request is added
// the connection object will compose the requests as a batch request; whether or
// not the request is a batch or a singleton, the handler behavior is the same,
// allowing the application to be dynamic in regards to whether a single or multiple
// requests are occuring
[newConnection addRequest:request completionHandler:handler];
// if there's an outstanding connection, just cancel
[self.requestConnection cancel];
// keep track of our connection, and start it
self.requestConnection = newConnection;
[newConnection start];
}
// FBSample logic
// Report any results. Invoked once for each request we make.
- (void)requestCompleted:(FBRequestConnection *)connection
forFbID:fbID
result:(id)result
error:(NSError *)error
{
NSLog(#"request completed");
// not the completion we were looking for...
if (self.requestConnection &&
connection != self.requestConnection)
{
NSLog(#" not the completion we are looking for");
return;
}
// clean this up, for posterity
self.requestConnection = nil;
if (error)
{
NSLog(#" error");
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:#"error" message:error.localizedDescription delegate:nil cancelButtonTitle:#"OK" otherButtonTitles: nil];
// error contains details about why the request failed
[alert show];
}
else
{
NSLog(#" ok");
};
}

Answer 2

try this code
NSHTTPCookieStorage* cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];
NSArray* facebookCookies = [cookies cookiesForURL:
[NSURL URLWithString:#"http://login.facebook.com"]];
for (NSHTTPCookie* cookie in facebookCookies) {
[cookies deleteCookie:cookie];
}
NSString *FBBody = [NSString stringWithFormat:#"your message you want to post"];
UIImage *img=[UIImage imageNamed:[NSString stringWithFormat:image naemif you want to post]];
FBFeedPost *post = [[FBFeedPost alloc] initWithPhoto:img name:FBBody];
[post publishPostWithDelegate:self];
[[UIAppDelegate indicator] startAnimating];
IFNNotificationDisplay *display = [[IFNNotificationDisplay alloc] init];
display.type = NotificationDisplayTypeLoading;
display.tag = NOTIFICATION_DISPLAY_TAG;

Answer 3

you should set Permissions:"status_update".
like this :
FBLoginView *loginview = [[FBLoginView alloc] initWithPermissions:[NSArray arrayWithObject:#"status_update"]];
or
FBSession *fbSession = [[FBSession alloc] initWithPermissions:[NSArray arrayWithObject:#"status_update"]];