Merge "A better auto brightness"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index fd3922c..669151e 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1895,10 +1895,14 @@
<string name="accelerometer_summary_off" product="tablet">Switch orientation automatically when rotating tablet</string>
<!-- Sound & display settings screen, accelerometer-based rotation summary text when check box is clear -->
<string name="accelerometer_summary_off" product="default">Switch orientation automatically when rotating phone</string>
- <!-- Sound & display settings screen, setting option name to change brightness -->
- <string name="brightness">Brightness</string>
- <!-- Sound & display settings screen, setting option summary to change brightness -->
+ <!-- Sound & display settings screen, setting option name to change brightness level -->
+ <string name="brightness">Brightness level</string>
+ <!-- Sound & display settings screen, setting option summary to change brightness level -->
<string name="brightness_summary">Adjust the brightness of the screen</string>
+ <!-- Sound & display settings screen, setting option name to enable adaptive brightness -->
+ <string name="auto_brightness_title">Adaptive brightness</string>
+ <!-- Sound & display settings screen, setting option summary to enable adaptive brightness -->
+ <string name="auto_brightness_summary">Optimize brightness level for available light</string>
<!-- Sound & display settings screen, setting option name to change screen timeout -->
<string name="screen_timeout">Sleep</string>
<!-- Sound & display settings screen, setting option summary to change screen timeout -->
diff --git a/res/xml/display_settings.xml b/res/xml/display_settings.xml
index 67cd7d3..c145938 100644
--- a/res/xml/display_settings.xml
+++ b/res/xml/display_settings.xml
@@ -22,6 +22,12 @@
android:title="@string/brightness"
android:persistent="false"/>
+ <CheckBoxPreference
+ android:key="auto_brightness"
+ android:title="@string/auto_brightness_title"
+ android:summary="@string/auto_brightness_summary"
+ android:persistent="false" />
+
<PreferenceScreen
android:key="wallpaper"
android:title="@string/wallpaper_settings_title"
diff --git a/src/com/android/settings/DisplaySettings.java b/src/com/android/settings/DisplaySettings.java
index afe5b68..3bf7cce 100644
--- a/src/com/android/settings/DisplaySettings.java
+++ b/src/com/android/settings/DisplaySettings.java
@@ -16,6 +16,9 @@
package com.android.settings;
+import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE;
+import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC;
+import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL;
import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
import android.app.ActivityManagerNative;
@@ -25,7 +28,6 @@
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
-import android.database.ContentObserver;
import android.os.Bundle;
import android.os.Handler;
import android.os.RemoteException;
@@ -35,7 +37,6 @@
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceScreen;
import android.provider.Settings;
-import android.provider.Settings.SettingNotFoundException;
import android.util.Log;
import java.util.ArrayList;
@@ -50,6 +51,7 @@
private static final String KEY_SCREEN_TIMEOUT = "screen_timeout";
private static final String KEY_FONT_SIZE = "font_size";
private static final String KEY_SCREEN_SAVER = "screensaver";
+ private static final String KEY_AUTO_BRIGHTNESS = "auto_brightness";
private static final int DLG_GLOBAL_CHANGE_WARNING = 1;
@@ -60,6 +62,7 @@
private ListPreference mScreenTimeoutPreference;
private Preference mScreenSaverPreference;
+ private CheckBoxPreference mAutoBrightnessPreference;
@Override
public void onCreate(Bundle savedInstanceState) {
@@ -86,6 +89,15 @@
mFontSizePref = (WarnedListPreference) findPreference(KEY_FONT_SIZE);
mFontSizePref.setOnPreferenceChangeListener(this);
mFontSizePref.setOnPreferenceClickListener(this);
+
+ boolean automaticBrightnessAvailable = getResources().getBoolean(
+ com.android.internal.R.bool.config_automatic_brightness_available);
+ if (automaticBrightnessAvailable) {
+ mAutoBrightnessPreference = (CheckBoxPreference) findPreference(KEY_AUTO_BRIGHTNESS);
+ mAutoBrightnessPreference.setOnPreferenceChangeListener(this);
+ } else {
+ removePreference(KEY_AUTO_BRIGHTNESS);
+ }
}
private void updateTimeoutPreferenceDescription(long currentTimeout) {
@@ -189,7 +201,6 @@
@Override
public void onResume() {
super.onResume();
-
updateState();
}
@@ -210,6 +221,13 @@
private void updateState() {
readFontSizePreference(mFontSizePref);
updateScreenSaverSummary();
+
+ // Update auto brightness if it is available.
+ if (mAutoBrightnessPreference != null) {
+ int brightnessMode = Settings.System.getInt(getContentResolver(),
+ SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_MANUAL);
+ mAutoBrightnessPreference.setChecked(brightnessMode != SCREEN_BRIGHTNESS_MODE_MANUAL);
+ }
}
private void updateScreenSaverSummary() {
@@ -248,7 +266,11 @@
if (KEY_FONT_SIZE.equals(key)) {
writeFontSizePreference(objValue);
}
-
+ if (preference == mAutoBrightnessPreference) {
+ boolean auto = (Boolean) objValue;
+ Settings.System.putInt(getContentResolver(), SCREEN_BRIGHTNESS_MODE,
+ auto ? SCREEN_BRIGHTNESS_MODE_AUTOMATIC : SCREEN_BRIGHTNESS_MODE_MANUAL);
+ }
return true;
}