sdk: Split TWILIGHT_ADJUSTMENT_TIME in half

* The difference between civil and actual sun{rise,set}
  is 6 degrees of movement of the Sun in its path in
  the sky, astronomically speaking
* Since the Sun "travels" at 15 degrees/hr in the sky,
  that means the difference between civil and actual sun{rise,set}
  is about 24 minutes, temporally speaking
* In order to more closely match that temporal difference,
  the TWILIGHT_ADJUSTMENT_TIME should be about 30 minutes

Change-Id: I30a600c71ce5dd01fcb96fb4f5108f45fa493b0c

1 files changed, 5 insertions, 5 deletions

diff --git a/lineage/lib/main/java/org/lineageos/platform/internal/display/ColorTemperatureController.java b/lineage/lib/main/java/org/lineageos/platform/internal/display/ColorTemperatureController.java
index 27b86d9a..40bc681f 100644
--- a/lineage/lib/main/java/org/lineageos/platform/internal/display/ColorTemperatureController.java
+++ b/lineage/lib/main/java/org/lineageos/platform/internal/display/ColorTemperatureController.java
@@ -62,7 +62,7 @@ public class ColorTemperatureController extends LiveDisplayFeature {
 
     private final LineageHardwareManager mHardware;
 
-    private static final long TWILIGHT_ADJUSTMENT_TIME = DateUtils.HOUR_IN_MILLIS * 1;
+    private static final long TWILIGHT_ADJUSTMENT_TIME = DateUtils.HOUR_IN_MILLIS / 2;
 
     private static final Uri DISPLAY_TEMPERATURE_DAY =
             LineageSettings.System.getUriFor(LineageSettings.System.DISPLAY_TEMPERATURE_DAY);
@@ -295,21 +295,21 @@ public class ColorTemperatureController extends LiveDisplayFeature {
         if (sunset < 0 || sunrise < 0
                 || now < (sunset - TWILIGHT_ADJUSTMENT_TIME)
                 || now > (sunrise + TWILIGHT_ADJUSTMENT_TIME)) {
-            // More than 1hr after civil sunrise or before civil sunset
+            // More than 0.5hr after civil sunrise or before civil sunset
             return 1.0f;
         }
 
-        // Scale the transition into night mode in 1hr before civil sunset
+        // Scale the transition into night mode in 0.5hr before civil sunset
         if (now <= sunset) {
             return (float) (sunset - now) / TWILIGHT_ADJUSTMENT_TIME;
         }
 
-        // Scale the transition into day mode in 1hr after civil sunrise
+        // Scale the transition into day mode in 0.5hr after civil sunrise
         if (now >= sunrise) {
             return (float) (now - sunrise) / TWILIGHT_ADJUSTMENT_TIME;
         }
 
-        // More than 1hr past civil sunset
+        // More than 0.5hr past civil sunset
         return 0.0f;
     }