ios 滑动亮度卡顿问题修复

lib/video.dart

@@ -218,9 +218,12 @@ class GZVideoPlayerState extends State<GZVideoPlayer>
       DeviceOrientation.landscapeLeft,
       DeviceOrientation.landscapeRight,
     ]);
-    // 常亮
+    /// 常亮
     Wakelock.toggle(enable: true);
-
+    /// 初始化亮度为系统亮度
+    ScreenBrightness().current.then((brightness) {
+      _brightness.value = brightness;
+    });
     /// 倍数按钮标题
     _speedTitle = widget.videoStyle.videoSpeedButtonStyle.title;
     _initPlayer();
@@ -805,10 +808,9 @@ class GZVideoPlayerState extends State<GZVideoPlayer>
             _volume.value = _controller.value.volume;
           } else {
             // 左侧垂直滑动 - 亮度调节
-            _brightness.value = await ScreenBrightness().current;
             if (details.primaryDelta! > 0) {
               //往下滑动
-              _brightness.value -= widget.playOptions.brightnessGestureUnit;
+              _brightness.value = _brightness.value - widget.playOptions.brightnessGestureUnit;
               widget.onBrightness?.call(_brightness.value);
               if (_brightness.value <= 0) {
                 _brightness.value = 0.0;
@@ -817,7 +819,7 @@ class GZVideoPlayerState extends State<GZVideoPlayer>
               await ScreenBrightness().setScreenBrightness(_brightness.value);
             } else {
               //往上滑动
-              _brightness.value += widget.playOptions.brightnessGestureUnit;
+              _brightness.value = _brightness.value + widget.playOptions.brightnessGestureUnit;
               widget.onBrightness?.call(_brightness.value);
               if (_brightness.value >= 1) {
                 _brightness.value = 1.0;

lib/video_play_options.dart

-import 'dart:io';
-
 import 'package:gz_video_player/video_speed.dart';
 
 /// 自定义播放参数
@@ -11,13 +9,11 @@ class VideoPlayOptions {
     this.seekSeconds = 15,
     this.progressGestureUnit = 1000,
     this.volumeGestureUnit = 0.005,
-    double? brightnessGestureUnit,
+    this.brightnessGestureUnit = 0.005,
     this.autoplay = true,
     this.allowScrubbing = true,
     List<VideoSpeedItem>? speedList,
-  })  : brightnessGestureUnit =
-            brightnessGestureUnit ?? (Platform.isIOS ? 0.01 : 0.005),
-        speedList = speedList ??
+  }) : speedList = speedList ??
             [
               VideoSpeedItem(speed: 0.5, title: '0.5X'),
               VideoSpeedItem(speed: 0.75, title: '0.75X'),