public BrightnessSlider(Context context) {
mContext = context;
mView = View.inflate(mContext, R.layout.brightness_slider, null);
mControl = (ToggleSlider) mView.findViewById(R.id.brightness);
mScreenBrightnessDim =
mContext
.getResources()
.getInteger(com.android.internal.R.integer.config_screenBrightnessDim);
boolean automaticAvailable =
context
.getResources()
.getBoolean(com.android.internal.R.bool.config_automatic_brightness_available);
mPower = IPowerManager.Stub.asInterface(ServiceManager.getService("power"));
if (automaticAvailable) {
int automatic;
try {
automatic =
Settings.System.getInt(
mContext.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE);
} catch (SettingNotFoundException snfe) {
automatic = 0;
}
mControl.setChecked(automatic != 0);
} else {
mControl.setChecked(false);
// control.hideToggle();
}
int value;
try {
value =
Settings.System.getInt(mContext.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);
} catch (SettingNotFoundException ex) {
value = MAXIMUM_BACKLIGHT;
}
mControl.setMax(MAXIMUM_BACKLIGHT - mScreenBrightnessDim);
mControl.setValue(value - mScreenBrightnessDim);
mControl.setOnChangedListener(this);
SettingsObserver so = new SettingsObserver(new Handler());
so.observe();
}
private void updateValues() {
int automatic;
mSystemChange = true;
try {
automatic =
Settings.System.getInt(
mContext.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE);
mControl.setChecked(automatic != 0);
mControl.setValue(
Settings.System.getInt(mContext.getContentResolver(), Settings.System.SCREEN_BRIGHTNESS));
} catch (SettingNotFoundException e) {
}
mSystemChange = false;
}