FBSession Completion Handler not working and open url not called? - ios

Question

appdelegate.m
if (FBSession.activeSession.state == FBSessionStateCreatedTokenLoaded) {
// Yes, so just open the session (this won't display any UX).
NSLog(#"token loaded");
[self openSession];
} else {
// No, display the login page.
//[self showLoginView];
NSLog(#"token not loaded");
}
- (void)applicationDidBecomeActive:(UIApplication *)application
{
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
// We need to properly handle activation of the application with regards to Facebook Login
// (e.g., returning from iOS 6.0 Login Dialog or from fast app switching).
[FBSession.activeSession handleDidBecomeActive];
}
pragma mark -
- (void)sessionStateChanged:(FBSession *)session
state:(FBSessionState) state
error:(NSError *)error
{
switch (state) {
case FBSessionStateOpen: {
NSLog(#"session state open");
}
break;
case FBSessionStateClosed:
case FBSessionStateClosedLoginFailed:
[FBSession.activeSession closeAndClearTokenInformation];
NSLog(#"session state closed");
break;
default:
break;
}
if (error) {
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:#"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
}
}
- (void)openSession
{
[FBSession openActiveSessionWithReadPermissions:#[#"public_profile, email, user_friends"] allowLoginUI:YES completionHandler:^(FBSession *session,
FBSessionState state, NSError *error) {
NSLog(#"It is never called");
[self sessionStateChanged:session state:state error:error];
}];
}
- (void)obatinUserInfo {
}
pragma mark -
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation
{
NSLog(#"it is never called");
return [FBSession.activeSession handleOpenURL:url];
}
view controller.m
===========
button action
- (IBAction)performLogin:(id)sender {
AppDelegate* appDelegate = [UIApplication sharedApplication].delegate;
[appDelegate openSession];
}
This is my code when call Facebook login goes to opensession, but not called within completion handler and open url.
Many links i refered but not working.
The same code working indivitual project but integrated into my project means not working.
Please assist me
Thanks in advance
S.Arul