优化initReferer

Pod/Classes/UIResponder+PhobosPV.m

@@ -25,7 +25,14 @@
         // 分present与navigation两种情况
         UIViewController *me = (UIViewController *)self;
         if (me.presentingViewController != nil) {
-            objc_setAssociatedObject(self, @selector(referer), me.presentingViewController.pageName, OBJC_ASSOCIATION_COPY);
+            // app全局只有一个navigation，发现此时用navigation.topViewController presentViewController时，最终使用的是navigation弹出的
+            // 所以此处要判断，如果是navigation弹出，最后还是要定位到topViewController
+            if ([me.presentingViewController isKindOfClass:[UINavigationController class]]) {
+                UIViewController *top = ((UINavigationController *)me.presentingViewController).topViewController;
+                objc_setAssociatedObject(self, @selector(referer), top.pageName, OBJC_ASSOCIATION_COPY);
+            } else {
+                objc_setAssociatedObject(self, @selector(referer), me.presentingViewController.pageName, OBJC_ASSOCIATION_COPY);
+            }
         } else {
             NSArray *navigationPool = ((UIViewController *)self).navigationController.viewControllers;
             NSInteger refererIndex = navigationPool.count - 2;