From 1dbbddc9fa2f6952712c37dccdb3c49986c2f9f8 Mon Sep 17 00:00:00 2001
From: apple <245185601@qq.com>
Date: Mon, 1 Jul 2019 14:46:53 +0800
Subject: [PATCH] fix the issue of UI Frezze
 https://github.com/AssistoLab/KVNProgress/issues/115

---
 KVNProgress/Classes/KVNProgress.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/KVNProgress/Classes/KVNProgress.m b/KVNProgress/Classes/KVNProgress.m
index 61357f8..a748a2e 100644
--- a/KVNProgress/Classes/KVNProgress.m
+++ b/KVNProgress/Classes/KVNProgress.m
@@ -916,7 +916,9 @@ - (void)setupMotionEffect
 
 - (void)addToWindow
 {
-	self.originalKeyWindow = [UIApplication sharedApplication].keyWindow;
+    if([UIApplication sharedApplication].keyWindow != self.progressWindow){
+        self.originalKeyWindow = [UIApplication sharedApplication].keyWindow;
+    }
 	
 	if (!self.progressWindow) {
 		self.progressWindow = [[UIWindow alloc] initWithFrame:self.originalKeyWindow.frame];