EvernoteSession authenticateWithViewController:completionHandler: does not trigger completionHandler - ios

Question

When I authenticate within the iPhone Simulater in debug mode the first if statement in the code below is run. However, when I debug on an iPhone that has the Evernote client installed the if statement does not appear evaluated. Instead the Evernote iOS app comes up for just a moment, then straight back to this ViewController without hitting any set breakpoints below the if, or the segue being fired.
Any ideas?
[session authenticateWithViewController:self completionHandler:^(NSError *error) {
if (error || !session.isAuthenticated){
if (error) {
NSLog(#"Error authenticating with Evernote Cloud API: %#", error);
}
if (!session.isAuthenticated) {
NSLog(#"Session not authenticated");
}
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Error"
message:#"Could not authenticate"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
} else {
// We're authenticated!
EvernoteUserStore *userStore = [EvernoteUserStore userStore];
[userStore getUserWithSuccess:^(EDAMUser *user) {
// success
NSLog(#"Authenticated as %#", [user username]);
[self performSegueWithIdentifier:#"introductionStepOne" sender:self];
} failure:^(NSError *error) {
// failure
NSLog(#"Error getting user: %#", error);
} ];
}
}];

Answer 1

Make sure you modify your AppDelegate properly. More information here : https://github.com/evernote/evernote-sdk-ios#modify-your-appdelegate
You need to add :
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication: (NSString *)sourceApplication annotation:(id)annotation {
BOOL canHandle = NO;
if ([[NSString stringWithFormat:#"en-%#", [[EvernoteSession sharedSession] consumerKey]] isEqualToString:[url scheme]] == YES) {
canHandle = [[EvernoteSession sharedSession] canHandleOpenURL:url];
}
return canHandle;
}
And
- (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.
[[EvernoteSession sharedSession] handleDidBecomeActive];
}