From c773c812af6c8270bae1eebf85bb01dad5a590e0 Mon Sep 17 00:00:00 2001
From: Heiko Guckes <heiko.guckes@namics.com>
Date: Fri, 11 Sep 2015 15:24:15 +0200
Subject: [PATCH] Use drawViewHierarchyinRect when applicable to increase
 performance and avoid crashing issues in iOS 9

---
 src/Blur/MRBlurView.m | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Blur/MRBlurView.m b/src/Blur/MRBlurView.m
index 5b72b6d..579572a 100644
--- a/src/Blur/MRBlurView.m
+++ b/src/Blur/MRBlurView.m
@@ -182,7 +182,11 @@ - (UIImage *)snapshot {
     CGContextTranslateCTM(context, -origin.x, -origin.y);
     
     // Draw the window
-    [window.layer renderInContext:context];
+    if ([window respondsToSelector:@selector(drawViewHierarchyInRect:afterScreenUpdates:)]) {
+        [window drawViewHierarchyInRect:window.bounds afterScreenUpdates:YES];
+    } else {
+        [window.layer renderInContext:context];
+    }
     
     // Capture the image and exit context
     UIImage *image = UIGraphicsGetImageFromCurrentImageContext();