From 2ee51d29eb40eda9b4188b14e433f1c9fb84950e Mon Sep 17 00:00:00 2001
From: Jeff Kunzelman <jeff@river.io>
Date: Tue, 15 Mar 2016 12:09:15 -0700
Subject: [PATCH] added method to handle rotation and reset animation geometry

---
 .../TLContainmentViewController.m                  | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/UIKit-Dynamics-Example/TLContainmentViewController.m b/UIKit-Dynamics-Example/TLContainmentViewController.m
index ec3f257..a55ca7e 100644
--- a/UIKit-Dynamics-Example/TLContainmentViewController.m
+++ b/UIKit-Dynamics-Example/TLContainmentViewController.m
@@ -89,6 +89,20 @@ - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
         contentViewController.delegate = self;
     }
 }
+#pragma mark - Handle Rotation
+- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
+{
+    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
+    self.animator = nil;
+    self.menuOpen = NO;
+    [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {
+        // Place code here to perform animations during the rotation.
+        // You can pass nil or leave this block empty if not necessary.
+        
+    } completion:^(id<UIViewControllerTransitionCoordinatorContext> context) {
+         [self setupMapContainerViewAnimatorProperties];
+    }];
+}
 
 #pragma mark - UIGestureRecognizerDelegate Methods