- Add Social Login

- Fix Vari

Pod/Classes/PNObjectUtilities.m

@@ -0,0 +1,33 @@
+//
+//  PNObjectUtilities.m
+//  Pods
+//
+//  Created by Giuseppe Nucifora on 17/03/16.
+//
+//
+
+#import "PNObjectUtilities.h"
+
+@implementation PNObjectUtilities
+
++ (UIViewController *)topViewController {
+    return [self topViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
+}
+
++ (UIViewController *)topViewController:(UIViewController *)rootViewController
+{
+    if (rootViewController.presentedViewController == nil) {
+        return rootViewController;
+    }
+    
+    if ([rootViewController.presentedViewController isKindOfClass:[UINavigationController class]]) {
+        UINavigationController *navigationController = (UINavigationController *)rootViewController.presentedViewController;
+        UIViewController *lastViewController = [[navigationController viewControllers] lastObject];
+        return [self topViewController:lastViewController];
+    }
+    
+    UIViewController *presentedViewController = (UIViewController *)rootViewController.presentedViewController;
+    return [self topViewController:presentedViewController];
+}
+
+@end