backlight 反应时间的修改

diff --git a/frameworks/base/core/res/res/values/config.xml b/frameworks/base/core/res/res/values/config.xml
index 9998905..cd2631b 100644
--- a/frameworks/base/core/res/res/values/config.xml
+++ b/frameworks/base/core/res/res/values/config.xml
@@ -979,8 +979,8 @@
          when adapting to brighter or darker environments. This parameter controls how quickly
          brightness changes occur in response to an observed change in light level that exceeds the
          hysteresis threshold. -->
- <integer name="config_autoBrightnessBrighteningLightDebounce">4000</integer>
- <integer name="config_autoBrightnessDarkeningLightDebounce">8000</integer>
+ <integer name="config_autoBrightnessBrighteningLightDebounce">1000</integer>
+ <integer name="config_autoBrightnessDarkeningLightDebounce">2000</integer>

     <!-- Light sensor event rate in milliseconds for automatic brightness control. -->
     <integer name="config_autoBrightnessLightSensorRate">250</integer>
diff --git a/frameworks/base/services/core/java/com/android/server/display/DisplayPowerController.java b/frameworks/base/services/core/java/com/android/server/display/DisplayPowerController.java
index c42b8fb..f9e7b12 100755
--- a/frameworks/base/services/core/java/com/android/server/display/DisplayPowerController.java
+++ b/frameworks/base/services/core/java/com/android/server/display/DisplayPowerController.java
@@ -754,7 +754,7 @@ final class DisplayPowerController implements AutomaticBrightnessController.Call
                 // Use current auto-brightness value and slowly adjust to changes.
                 brightness = clampScreenBrightness(brightness);
                 if (mAppliedAutoBrightness && !autoBrightnessAdjustmentChanged) {
-                    slowChange = true; // slowly adapt to auto-brightness
+ slowChange = false; // slowly adapt to auto-brightness
                 }
                 mAppliedAutoBrightness = true;
             } else {