Integrate Box IOS sdk in my ios project - ios

Question

I'm trying to integrate BOX V2 IOS SDk on my ios project , the integration is fine, but when I try to login , and after I enter my username and password and granted the access , I get a white screen , and the boxAPIAuthenticationDidSucceed method is not called , her is my code
the connexion Method :
-(void) connectToBox {
[BoxSDK sharedSDK].OAuth2Session.clientID = #"my-client-id";
[BoxSDK sharedSDK].OAuth2Session.clientSecret = #"my-client-secret";
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(boxAPIAuthenticationDidSucceed:)
name:BoxOAuth2SessionDidBecomeAuthenticatedNotification
object:[BoxSDK sharedSDK].OAuth2Session];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(boxAPIAuthenticationDidFail:)
name:BoxOAuth2SessionDidReceiveAuthenticationErrorNotification
object:[BoxSDK sharedSDK].OAuth2Session];
self.LoginCotroller = [[BoxAuthorizationViewController alloc] initWithAuthorizationURL:authorizationURL redirectURI:redirectURI];
[self presentViewController:self.LoginCotroller animated:YES completion:nil];
}
and I implement the two methods :
- (void)boxAPIAuthenticationDidSucceed:(NSNotification *)notification;
- (void)boxAPIAuthenticationDidFail:(NSNotification *)notification;
and the notifications methods :
#pragma mark - Handle OAuth2 session notifications
- (void)boxAPIAuthenticationDidSucceed:(NSNotification *)notification
{
BoxOAuth2Session *session = (BoxOAuth2Session *) notification.object;
NSLog(#"Received OAuth2 successfully authenticated notification");
NSLog(#"Access token (%#) expires at %#", session.accessToken, session.accessTokenExpiration);
NSLog(#"Refresh token (%#)", session.refreshToken);
dispatch_sync(dispatch_get_main_queue(), ^{
[self.LoginCotroller dismissViewControllerAnimated:YES completion:nil];
});
}
- (void)boxAPIAuthenticationDidFail:(NSNotification *)notification
{
NSLog(#"Received OAuth2 failed authenticated notification");
NSString *oauth2Error = [[notification userInfo] valueForKey:BoxOAuth2AuthenticationErrorKey];
NSLog(#"Authentication error (%#)", oauth2Error);
dispatch_sync(dispatch_get_main_queue(), ^{
[self dismissViewControllerAnimated:YES completion:nil];
});
}
I dont know what wrong with my code.So if any one can help.Thanks

Answer 1

I'd suggest adding your controller as an observer for BoxOAuth2SessionDidRefreshTokensNotification as well to call boxAPIAuthenticationDidSucceed: method. BoxOAuth2SessionDidRefreshTokensNotification is posted when a new access-token is created/refresed.