From 8d255b9238b8230b2c478fe8523147808e4e939c Mon Sep 17 00:00:00 2001
From: Ming Ming <nkming2@gmail.com>
Date: Tue, 24 Aug 2021 13:25:14 +0800
Subject: [PATCH] Fix setting brightness with negative value

---
 lib/widget/viewer.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/widget/viewer.dart b/lib/widget/viewer.dart
index 5ebcbf8c..952b5d93 100644
--- a/lib/widget/viewer.dart
+++ b/lib/widget/viewer.dart
@@ -648,7 +648,7 @@ class _ViewerBrightnessController implements Disposable {
   @override
   init(State state) {
     final brightness = Pref.inst().getViewerScreenBrightness();
-    if (brightness != null) {
+    if (brightness != null && brightness >= 0) {
       ScreenBrightness.setScreenBrightness(brightness / 100.0);
     }
   }