From e2e7521a9b459a614b848a361bc15e3c0ec0a2de Mon Sep 17 00:00:00 2001
From: Shantanu <shantanutarey@gmail.com>
Date: Tue, 23 Apr 2019 11:56:14 +0200
Subject: [PATCH] :bug: add null check

---
 lib/pages/home/modals/zoomable_photo.dart | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/pages/home/modals/zoomable_photo.dart b/lib/pages/home/modals/zoomable_photo.dart
index 357304929..6f557e87b 100644
--- a/lib/pages/home/modals/zoomable_photo.dart
+++ b/lib/pages/home/modals/zoomable_photo.dart
@@ -194,6 +194,7 @@ class OBZoomablePhotoModalState extends State<OBZoomablePhotoModal>
   }
 
   void _updateRotationValues() {
+    if (startDragDetails == null) return;
     double screenWidth = MediaQuery.of(context).size.width;
     double screenHeight = MediaQuery.of(context).size.height;
     double screenMid = screenWidth / 2;