From b93229f7302cab248b7c6d4fce35a8400f77d67e Mon Sep 17 00:00:00 2001
From: Marc Weeber <marc@marotan.com>
Date: Tue, 10 Jun 2014 22:12:33 +0200
Subject: [PATCH] prevent crash when the visible view controller holds a
 reference to a map view. The error message was: -[VKMapView superview]:
 unrecognized selector sent to instance ...

---
 LMAlertView/CALayer+ModalAlert.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LMAlertView/CALayer+ModalAlert.m b/LMAlertView/CALayer+ModalAlert.m
index 085311c..9bbbf18 100644
--- a/LMAlertView/CALayer+ModalAlert.m
+++ b/LMAlertView/CALayer+ModalAlert.m
@@ -27,7 +27,7 @@ - (UIWindow *)windowForView:(UIView *)view
 {
 	UIView *tempView = view;
 	
-	while (tempView.superview != nil) {
+	while ([tempView respondsToSelector:@selector(superview)] && tempView.superview != nil) {
 		tempView = tempView.superview;
 		
 		if ([tempView isKindOfClass:[UIWindow class]]) {