Don't wake users up with low battery sounds.
Battery sounds will always play when the screen is on, and
then for Settings.Global.LOW_BATTERY_SOUND_TIMEOUT
milliseconds after the screen goes off. After that, low
battery alerts will be pushed out the airlock until the
screen comes back on again.
If battery sounds are suppressed via this mechanism you'll
see a log line like:
V/PowerUI ( 3161): screen off too long (5779ms, limit
5000ms): not waking up the user with low battery sound
The default value of LOW_BATTERY_SOUND_TIMEOUT is a settings
provider resource: R.integer.def_low_battery_sound_timeout.
Bug: 10487557
Change-Id: Iddd42038aa630631dc8f1833f20fcc5a0c646681
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 50777fd..6f1c6ba 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -5920,6 +5920,16 @@
public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";
/**
+ * Milliseconds after screen-off after which low battery sounds will be silenced.
+ *
+ * If zero, battery sounds will always play.
+ * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
+ *
+ * @hide
+ */
+ public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";
+
+ /**
* Settings to backup. This is here so that it's in the same place as the settings
* keys and easy to update.
*