From 1869282d7efc5a7ebfd11b8feaebf4f00c24f43a Mon Sep 17 00:00:00 2001
From: Barry <barry@17.media>
Date: Mon, 4 May 2020 18:07:16 +0800
Subject: [PATCH] Lower windowLevel only when windowLevel equals
 UIWindowLevelStatusBar

---
 ABVolumeControl/Classes/ABVolumeControl.m | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/ABVolumeControl/Classes/ABVolumeControl.m b/ABVolumeControl/Classes/ABVolumeControl.m
index b2e413a..473e817 100644
--- a/ABVolumeControl/Classes/ABVolumeControl.m
+++ b/ABVolumeControl/Classes/ABVolumeControl.m
@@ -43,13 +43,17 @@ - (void) setVolumeControlStyle:(ABVolumeControlStyle)volumeControlStyle {
     _volumeControlStyle = volumeControlStyle;
     
     if ([self notNull:self.volumeBar]) {
-        self.volumeBar.window.windowLevel = UIWindowLevelStatusBar-1;
+        if (self.volumeBar.window.windowLevel == UIWindowLevelStatusBar) {
+            self.volumeBar.window.windowLevel--;
+        }
         [self.volumeBar removeFromSuperview];
         self.volumeBar = nil;
     }
     
     if ([self notNull:self.volumeBackground]) {
-        self.volumeBackground.window.windowLevel = UIWindowLevelStatusBar-1;
+        if (self.volumeBackground.window.windowLevel == UIWindowLevelStatusBar) {
+            self.volumeBackground.window.windowLevel--;
+        }
         [self.volumeBackground removeFromSuperview];
         self.volumeBackground = nil;
     }